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| author | OpenShift Bot <eparis+openshiftbot@redhat.com> | 2017-03-23 14:22:35 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-03-23 14:22:35 -0500 |
| commit | 8751f883b28e9f04b31038e16efad9036527f890 (patch) | |
| tree | 025ad2133d9cbf2e678ea0ac863ce2da9d207843 | |
| parent | adbf60c2d5a63d33e2a6d52d043124ad0058a0e1 (diff) | |
| parent | a35bd91e8f4a3a08dfdd9bb2a68d4023cb389408 (diff) | |
| download | openshift-8751f883b28e9f04b31038e16efad9036527f890.tar.gz openshift-8751f883b28e9f04b31038e16efad9036527f890.tar.bz2 openshift-8751f883b28e9f04b31038e16efad9036527f890.tar.xz openshift-8751f883b28e9f04b31038e16efad9036527f890.zip | |
Merge pull request #3461 from juanvallejo/jvallejo/add-docker-image-check
Merged by openshift-bot
5 files changed, 2238 insertions, 0 deletions
diff --git a/Dockerfile b/Dockerfile index c6593491d..eecf3630b 100644 --- a/Dockerfile +++ b/Dockerfile @@ -14,6 +14,15 @@ LABEL name="openshift-ansible" \ io.openshift.expose-services="" \ io.openshift.tags="openshift,install,upgrade,ansible" +USER root + +RUN INSTALL_PKGS="skopeo" && \ + yum install -y --setopt=tsflags=nodocs $INSTALL_PKGS && \ + rpm -V $INSTALL_PKGS && \ + yum clean all + +USER ${USER_UID} + # The playbook to be run is specified via the PLAYBOOK_FILE env var. # This sets a default of openshift_facts.yml as it's an informative playbook # that can help test that everything is set properly (inventory, sshkeys) diff --git a/roles/openshift_health_checker/action_plugins/openshift_health_check.py b/roles/openshift_health_checker/action_plugins/openshift_health_check.py index 0411797b1..8b23533c8 100644 --- a/roles/openshift_health_checker/action_plugins/openshift_health_check.py +++ b/roles/openshift_health_checker/action_plugins/openshift_health_check.py @@ -74,6 +74,7 @@ class ActionModule(ActionBase): result["failed"] = True result["msg"] = "One or more checks failed" + result["changed"] = any(r.get("changed", False) for r in check_results.values()) return result def load_known_checks(self): diff --git a/roles/openshift_health_checker/library/docker_container.py b/roles/openshift_health_checker/library/docker_container.py new file mode 100644 index 000000000..f81b4ec01 --- /dev/null +++ b/roles/openshift_health_checker/library/docker_container.py @@ -0,0 +1,2036 @@ +#!/usr/bin/python +# pylint: skip-file +# flake8: noqa + +# TODO: remove this file once openshift-ansible requires ansible >= 2.3. +# This file is a copy of +# https://github.com/ansible/ansible/blob/20bf02f/lib/ansible/modules/cloud/docker/docker_container.py. +# It has been temporarily vendored here due to issue https://github.com/ansible/ansible/issues/22323. + + +# Copyright 2016 Red Hat | Ansible +# +# This file is part of Ansible +# +# Ansible is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# Ansible is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with Ansible. If not, see <http://www.gnu.org/licenses/>. + +ANSIBLE_METADATA = {'status': ['preview'], + 'supported_by': 'committer', + 'version': '1.0'} + +DOCUMENTATION = ''' +--- +module: docker_container + +short_description: manage docker containers + +description: + - Manage the life cycle of docker containers. + - Supports check mode. Run with --check and --diff to view config difference and list of actions to be taken. + +version_added: "2.1" + +options: + blkio_weight: + description: + - Block IO (relative weight), between 10 and 1000. + default: null + required: false + capabilities: + description: + - List of capabilities to add to the container. + default: null + required: false + cleanup: + description: + - Use with I(detach) to remove the container after successful execution. + default: false + required: false + version_added: "2.2" + command: + description: + - Command to execute when the container starts. + default: null + required: false + cpu_period: + description: + - Limit CPU CFS (Completely Fair Scheduler) period + default: 0 + required: false + cpu_quota: + description: + - Limit CPU CFS (Completely Fair Scheduler) quota + default: 0 + required: false + cpuset_cpus: + description: + - CPUs in which to allow execution C(1,3) or C(1-3). + default: null + required: false + cpuset_mems: + description: + - Memory nodes (MEMs) in which to allow execution C(0-3) or C(0,1) + default: null + required: false + cpu_shares: + description: + - CPU shares (relative weight). + default: null + required: false + detach: + description: + - Enable detached mode to leave the container running in background. + If disabled, the task will reflect the status of the container run (failed if the command failed). + default: true + required: false + devices: + description: + - "List of host device bindings to add to the container. Each binding is a mapping expressed + in the format: <path_on_host>:<path_in_container>:<cgroup_permissions>" + default: null + required: false + dns_servers: + description: + - List of custom DNS servers. + default: null + required: false + dns_search_domains: + description: + - List of custom DNS search domains. + default: null + required: false + env: + description: + - Dictionary of key,value pairs. + default: null + required: false + env_file: + version_added: "2.2" + description: + - Path to a file containing environment variables I(FOO=BAR). + - If variable also present in C(env), then C(env) value will override. + - Requires docker-py >= 1.4.0. + default: null + required: false + entrypoint: + description: + - Command that overwrites the default ENTRYPOINT of the image. + default: null + required: false + etc_hosts: + description: + - Dict of host-to-IP mappings, where each host name is a key in the dictionary. + Each host name will be added to the container's /etc/hosts file. + default: null + required: false + exposed_ports: + description: + - List of additional container ports which informs Docker that the container + listens on the specified network ports at runtime. + If the port is already exposed using EXPOSE in a Dockerfile, it does not + need to be exposed again. + default: null + required: false + aliases: + - exposed + force_kill: + description: + - Use the kill command when stopping a running container. + default: false + required: false + groups: + description: + - List of additional group names and/or IDs that the container process will run as. + default: null + required: false + hostname: + description: + - Container hostname. + default: null + required: false + ignore_image: + description: + - When C(state) is I(present) or I(started) the module compares the configuration of an existing + container to requested configuration. The evaluation includes the image version. If + the image version in the registry does not match the container, the container will be + recreated. Stop this behavior by setting C(ignore_image) to I(True). + default: false + required: false + version_added: "2.2" + image: + description: + - Repository path and tag used to create the container. If an image is not found or pull is true, the image + will be pulled from the registry. If no tag is included, 'latest' will be used. + default: null + required: false + interactive: + description: + - Keep stdin open after a container is launched, even if not attached. + default: false + required: false + ipc_mode: + description: + - Set the IPC mode for the container. Can be one of 'container:<name|id>' to reuse another + container's IPC namespace or 'host' to use the host's IPC namespace within the container. + default: null + required: false + keep_volumes: + description: + - Retain volumes associated with a removed container. + default: true + required: false + kill_signal: + description: + - Override default signal used to kill a running container. + default null: + required: false + kernel_memory: + description: + - "Kernel memory limit (format: <number>[<unit>]). Number is a positive integer. + Unit can be one of b, k, m, or g. Minimum is 4M." + default: 0 + required: false + labels: + description: + - Dictionary of key value pairs. + default: null + required: false + links: + description: + - List of name aliases for linked containers in the format C(container_name:alias) + default: null + required: false + log_driver: + description: + - Specify the logging driver. Docker uses json-file by default. + choices: + - none + - json-file + - syslog + - journald + - gelf + - fluentd + - awslogs + - splunk + default: null + required: false + log_options: + description: + - Dictionary of options specific to the chosen log_driver. See https://docs.docker.com/engine/admin/logging/overview/ + for details. + required: false + default: null + mac_address: + description: + - Container MAC address (e.g. 92:d0:c6:0a:29:33) + default: null + required: false + memory: + description: + - "Memory limit (format: <number>[<unit>]). Number is a positive integer. + Unit can be one of b, k, m, or g" + default: 0 + required: false + memory_reservation: + description: + - "Memory soft limit (format: <number>[<unit>]). Number is a positive integer. + Unit can be one of b, k, m, or g" + default: 0 + required: false + memory_swap: + description: + - Total memory limit (memory + swap, format:<number>[<unit>]). + Number is a positive integer. Unit can be one of b, k, m, or g. + default: 0 + required: false + memory_swappiness: + description: + - Tune a container's memory swappiness behavior. Accepts an integer between 0 and 100. + default: 0 + required: false + name: + description: + - Assign a name to a new container or match an existing container. + - When identifying an existing container name may be a name or a long or short container ID. + required: true + network_mode: + description: + - Connect the container to a network. + choices: + - bridge + - container:<name|id> + - host + - none + default: null + required: false + networks: + description: + - List of networks the container belongs to. + - Each network is a dict with keys C(name), C(ipv4_address), C(ipv6_address), C(links), C(aliases). + - For each network C(name) is required, all other keys are optional. + - If included, C(links) or C(aliases) are lists. + - For examples of the data structure and usage see EXAMPLES below. + - To remove a container from one or more networks, use the C(purge_networks) option. + default: null + required: false + version_added: "2.2" + oom_killer: + description: + - Whether or not to disable OOM Killer for the container. + default: false + required: false + oom_score_adj: + description: + - An integer value containing the score given to the container in order to tune OOM killer preferences. + default: 0 + required: false + version_added: "2.2" + paused: + description: + - Use with the started state to pause running processes inside the container. + default: false + required: false + pid_mode: + description: + - Set the PID namespace mode for the container. Currently only supports 'host'. + default: null + required: false + privileged: + description: + - Give extended privileges to the container. + default: false + required: false + published_ports: + description: + - List of ports to publish from the container to the host. + - "Use docker CLI syntax: C(8000), C(9000:8000), or C(0.0.0.0:9000:8000), where 8000 is a + container port, 9000 is a host port, and 0.0.0.0 is a host interface." + - Container ports must be exposed either in the Dockerfile or via the C(expose) option. + - A value of all will publish all exposed container ports to random host ports, ignoring + any other mappings. + - If C(networks) parameter is provided, will inspect each network to see if there exists + a bridge network with optional parameter com.docker.network.bridge.host_binding_ipv4. + If such a network is found, then published ports where no host IP address is specified + will be bound to the host IP pointed to by com.docker.network.bridge.host_binding_ipv4. + Note that the first bridge network with a com.docker.network.bridge.host_binding_ipv4 + value encountered in the list of C(networks) is the one that will be used. + aliases: + - ports + required: false + default: null + pull: + description: + - If true, always pull the latest version of an image. Otherwise, will only pull an image when missing. + default: false + required: false + purge_networks: + description: + - Remove the container from ALL networks not included in C(networks) parameter. + - Any default networks such as I(bridge), if not found in C(networks), will be removed as well. + default: false + required: false + version_added: "2.2" + read_only: + description: + - Mount the container's root file system as read-only. + default: false + required: false + recreate: + description: + - Use with present and started states to force the re-creation of an existing container. + default: false + required: false + restart: + description: + - Use with started state to force a matching container to be stopped and restarted. + default: false + required: false + restart_policy: + description: + - Container restart policy. Place quotes around I(no) option. + choices: + - always + - no + - on-failure + - unless-stopped + default: on-failure + required: false + restart_retries: + description: + - Use with restart policy to control maximum number of restart attempts. + default: 0 + required: false + shm_size: + description: + - Size of `/dev/shm`. The format is `<number><unit>`. `number` must be greater than `0`. + Unit is optional and can be `b` (bytes), `k` (kilobytes), `m` (megabytes), or `g` (gigabytes). + - Omitting the unit defaults to bytes. If you omit the size entirely, the system uses `64m`. + default: null + required: false + security_opts: + description: + - List of security options in the form of C("label:user:User") + default: null + required: false + state: + description: + - 'I(absent) - A container matching the specified name will be stopped and removed. Use force_kill to kill the container + rather than stopping it. Use keep_volumes to retain volumes associated with the removed container.' + - 'I(present) - Asserts the existence of a container matching the name and any provided configuration parameters. If no + container matches the name, a container will be created. If a container matches the name but the provided configuration + does not match, the container will be updated, if it can be. If it cannot be updated, it will be removed and re-created + with the requested config. Image version will be taken into account when comparing configuration. To ignore image + version use the ignore_image option. Use the recreate option to force the re-creation of the matching container. Use + force_kill to kill the container rather than stopping it. Use keep_volumes to retain volumes associated with a removed + container.' + - 'I(started) - Asserts there is a running container matching the name and any provided configuration. If no container + matches the name, a container will be created and started. If a container matching the name is found but the + configuration does not match, the container will be updated, if it can be. If it cannot be updated, it will be removed + and a new container will be created with the requested configuration and started. Image version will be taken into + account when comparing configuration. To ignore image version use the ignore_image option. Use recreate to always + re-create a matching container, even if it is running. Use restart to force a matching container to be stopped and + restarted. Use force_kill to kill a container rather than stopping it. Use keep_volumes to retain volumes associated + with a removed container.' + - 'I(stopped) - Asserts that the container is first I(present), and then if the container is running moves it to a stopped + state. Use force_kill to kill a container rather than stopping it.' + required: false + default: started + choices: + - absent + - present + - stopped + - started + stop_signal: + description: + - Override default signal used to stop the container. + default: null + required: false + stop_timeout: + description: + - Number of seconds to wait for the container to stop before sending SIGKILL. + required: false + default: null + trust_image_content: + description: + - If true, skip image verification. + default: false + required: false + tty: + description: + - Allocate a psuedo-TTY. + default: false + required: false + ulimits: + description: + - "List of ulimit options. A ulimit is specified as C(nofile:262144:262144)" + default: null + required: false + user: + description: + - Sets the username or UID used and optionally the groupname or GID for the specified command. + - "Can be [ user | user:group | uid | uid:gid | user:gid | uid:group ]" + default: null + required: false + uts: + description: + - Set the UTS namespace mode for the container. + default: null + required: false + volumes: + description: + - List of volumes to mount within the container. + - "Use docker CLI-style syntax: C(/host:/container[:mode])" + - You can specify a read mode for the mount with either C(ro) or C(rw). + - SELinux hosts can additionally use C(z) or C(Z) to use a shared or + private label for the volume. + default: null + required: false + volume_driver: + description: + - The container volume driver. + default: none + required: false + volumes_from: + description: + - List of container names or Ids to get volumes from. + default: null + required: false +extends_documentation_fragment: + - docker + +author: + - "Cove Schneider (@cove)" + - "Joshua Conner (@joshuaconner)" + - "Pavel Antonov (@softzilla)" + - "Thomas Steinbach (@ThomasSteinbach)" + - "Philippe Jandot (@zfil)" + - "Daan Oosterveld (@dusdanig)" + - "James Tanner (@jctanner)" + - "Chris Houseknecht (@chouseknecht)" + +requirements: + - "python >= 2.6" + - "docker-py >= 1.7.0" + - "Docker API >= 1.20" +''' + +EXAMPLES = ''' +- name: Create a data container + docker_container: + name: mydata + image: busybox + volumes: + - /data + +- name: Re-create a redis container + docker_container: + name: myredis + image: redis + command: redis-server --appendonly yes + state: present + recreate: yes + exposed_ports: + - 6379 + volumes_from: + - mydata + +- name: Restart a container + docker_container: + name: myapplication + image: someuser/appimage + state: started + restart: yes + links: + - "myredis:aliasedredis" + devices: + - "/dev/sda:/dev/xvda:rwm" + ports: + - "8080:9000" + - "127.0.0.1:8081:9001/udp" + env: + SECRET_KEY: ssssh + +- name: Container present + docker_container: + name: mycontainer + state: present + image: ubuntu:14.04 + command: sleep infinity + +- name: Stop a container + docker_container: + name: mycontainer + state: stopped + +- name: Start 4 load-balanced containers + docker_container: + name: "container{{ item }}" + recreate: yes + image: someuser/anotherappimage + command: sleep 1d + with_sequence: count=4 + +- name: remove container + docker_container: + name: ohno + state: absent + +- name: Syslogging output + docker_container: + name: myservice + image: busybox + log_driver: syslog + log_options: + syslog-address: tcp://my-syslog-server:514 + syslog-facility: daemon + # NOTE: in Docker 1.13+ the "syslog-tag" option was renamed to "tag" for + # older docker installs, use "syslog-tag" instead + tag: myservice + +- name: Create db container and connect to network + docker_container: + name: db_test + image: "postgres:latest" + networks: + - name: "{{ docker_network_name }}" + +- name: Start container, connect to network and link + docker_container: + name: sleeper + image: ubuntu:14.04 + networks: + - name: TestingNet + ipv4_address: "172.1.1.100" + aliases: + - sleepyzz + links: + - db_test:db + - name: TestingNet2 + +- name: Start a container with a command + docker_container: + name: sleepy + image: ubuntu:14.04 + command: sleep infinity + +- name: Add container to networks + docker_container: + name: sleepy + networks: + - name: TestingNet + ipv4_address: 172.1.1.18 + links: + - sleeper + - name: TestingNet2 + ipv4_address: 172.1.10.20 + +- name: Update network with aliases + docker_container: + name: sleepy + networks: + - name: TestingNet + aliases: + - sleepyz + - zzzz + +- name: Remove container from one network + docker_container: + name: sleepy + networks: + - name: TestingNet2 + purge_networks: yes + +- name: Remove container from all networks + docker_container: + name: sleepy + purge_networks: yes + +''' + +RETURN = ''' +docker_container: + description: + - Before 2.3 this was 'ansible_docker_container' but was renamed due to conflicts with the connection plugin. + - Facts representing the current state of the container. Matches the docker inspection output. + - Note that facts are not part of registered vars but accessible directly. + - Empty if C(state) is I(absent) + - If detached is I(False), will include Output attribute containing any output from container run. + returned: always + type: dict + sample: '{ + "AppArmorProfile": "", + "Args": [], + "Config": { + "AttachStderr": false, + "AttachStdin": false, + "AttachStdout": false, + "Cmd": [ + "/usr/bin/supervisord" + ], + "Domainname": "", + "Entrypoint": null, + "Env": [ + "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" + ], + "ExposedPorts": { + "443/tcp": {}, + "80/tcp": {} + }, + "Hostname": "8e47bf643eb9", + "Image": "lnmp_nginx:v1", + "Labels": {}, + "OnBuild": null, + "OpenStdin": false, + "StdinOnce": false, + "Tty": false, + "User": "", + "Volumes": { + "/tmp/lnmp/nginx-sites/logs/": {} + }, + ... + }' +''' + +import re + +from ansible.module_utils.docker_common import * + +try: + from docker import utils + if HAS_DOCKER_PY_2: + from docker.types import Ulimit + else: + from docker.utils.types import Ulimit +except: + # missing docker-py handled in ansible.module_utils.docker + pass + + +REQUIRES_CONVERSION_TO_BYTES = [ + 'memory', + 'memory_reservation', + 'memory_swap', + 'shm_size' +] + +VOLUME_PERMISSIONS = ('rw', 'ro', 'z', 'Z') + +class TaskParameters(DockerBaseClass): + ''' + Access and parse module parameters + ''' + + def __init__(self, client): + super(TaskParameters, self).__init__() + self.client = client + + self.blkio_weight = None + self.capabilities = None + self.cleanup = None + self.command = None + self.cpu_period = None + self.cpu_quota = None + self.cpuset_cpus = None + self.cpuset_mems = None + self.cpu_shares = None + self.detach = None + self.debug = None + self.devices = None + self.dns_servers = None + self.dns_opts = None + self.dns_search_domains = None + self.env = None + self.env_file = None + self.entrypoint = None + self.etc_hosts = None + self.exposed_ports = None + self.force_kill = None + self.groups = None + self.hostname = None + self.ignore_image = None + self.image = None + self.interactive = None + self.ipc_mode = None + self.keep_volumes = None + self.kernel_memory = None + self.kill_signal = None + self.labels = None + self.links = None + self.log_driver = None + self.log_options = None + self.mac_address = None + self.memory = None + self.memory_reservation = None + self.memory_swap = None + self.memory_swappiness = None + self.name = None + self.network_mode = None + self.networks = None + self.oom_killer = None + self.oom_score_adj = None + self.paused = None + self.pid_mode = None + self.privileged = None + self.purge_networks = None + self.pull = None + self.read_only = None + self.recreate = None + self.restart = None + self.restart_retries = None + self.restart_policy = None + self.shm_size = None + self.security_opts = None + self.state = None + self.stop_signal = None + self.stop_timeout = None + self.trust_image_content = None + self.tty = None + self.user = None + self.uts = None + self.volumes = None + self.volume_binds = dict() + self.volumes_from = None + self.volume_driver = None + + for key, value in client.module.params.items(): + setattr(self, key, value) + + for param_name in REQUIRES_CONVERSION_TO_BYTES: + if client.module.params.get(param_name): + try: + setattr(self, param_name, human_to_bytes(client.module.params.get(param_name))) + except ValueError as exc: + self.fail("Failed to convert %s to bytes: %s" % (param_name, exc)) + + self.publish_all_ports = False + self.published_ports = self._parse_publish_ports() + if self.published_ports in ('all', 'ALL'): + self.publish_all_ports = True + self.published_ports = None + + self.ports = self._parse_exposed_ports(self.published_ports) + self.log("expose ports:") + self.log(self.ports, pretty_print=True) + + self.links = self._parse_links(self.links) + + if self.volumes: + self.volumes = self._expand_host_paths() + + self.env = self._get_environment() + self.ulimits = self._parse_ulimits() + self.log_config = self._parse_log_config() + self.exp_links = None + self.volume_binds = self._get_volume_binds(self.volumes) + + self.log("volumes:") + self.log(self.volumes, pretty_print=True) + self.log("volume binds:") + self.log(self.volume_binds, pretty_print=True) + + if self.networks: + for network in self.networks: + if not network.get('name'): + self.fail("Parameter error: network must have a name attribute.") + network['id'] = self._get_network_id(network['name']) + if not network['id']: + self.fail("Parameter error: network named %s could not be found. Does it exist?" % network['name']) + if network.get('links'): + network['links'] = self._parse_links(network['links']) + + def fail(self, msg): + self.client.module.fail_json(msg=msg) + + @property + def update_parameters(self): + ''' + Returns parameters used to update a container + ''' + + update_parameters = dict( + blkio_weight='blkio_weight', + cpu_period='cpu_period', + cpu_quota='cpu_quota', + cpu_shares='cpu_shares', + cpuset_cpus='cpuset_cpus', + mem_limit='memory', + mem_reservation='mem_reservation', + memswap_limit='memory_swap', + kernel_memory='kernel_memory' + ) + result = dict() + for key, value in update_parameters.items(): + if getattr(self, value, None) is not None: + result[key] = getattr(self, value) + return result + + @property + def create_parameters(self): + ''' + Returns parameters used to create a container + ''' + create_params = dict( + command='command', + hostname='hostname', + user='user', + detach='detach', + stdin_open='interactive', + tty='tty', + ports='ports', + environment='env', + name='name', + entrypoint='entrypoint', + cpu_shares='cpu_shares', + mac_address='mac_address', + labels='labels', + stop_signal='stop_signal', + volume_driver='volume_driver', + ) + + result = dict( + host_config=self._host_config(), + volumes=self._get_mounts(), + ) + + for key, value in create_params.items(): + if getattr(self, value, None) is not None: + result[key] = getattr(self, value) + return result + + def _expand_host_paths(self): + new_vols = [] + for vol in self.volumes: + if ':' in vol: + if len(vol.split(':')) == 3: + host, container, mode = vol.split(':') + if re.match(r'[\.~]', host): + host = os.path.abspath(host) + new_vols.append("%s:%s:%s" % (host, container, mode)) + continue + elif len(vol.split(':')) == 2: + parts = vol.split(':') + if parts[1] not in VOLUME_PERMISSIONS and re.match(r'[\.~]', parts[0]): + host = os.path.abspath(parts[0]) + new_vols.append("%s:%s:rw" % (host, parts[1])) + continue + new_vols.append(vol) + return new_vols + + def _get_mounts(self): + ''' + Return a list of container mounts. + :return: + ''' + result = [] + if self.volumes: + for vol in self.volumes: + if ':' in vol: + if len(vol.split(':')) == 3: + host, container, _ = vol.split(':') + result.append(container) + continue + if len(vol.split(':')) == 2: + parts = vol.split(':') + if parts[1] not in VOLUME_PERMISSIONS: + result.append(parts[1]) + continue + result.append(vol) + self.log("mounts:") + self.log(result, pretty_print=True) + return result + + def _host_config(self): + ''' + Returns parameters used to create a HostConfig object + ''' + + host_config_params=dict( + port_bindings='published_ports', + publish_all_ports='publish_all_ports', + links='links', + privileged='privileged', + dns='dns_servers', + dns_search='dns_search_domains', + binds='volume_binds', + volumes_from='volumes_from', + network_mode='network_mode', + cap_add='capabilities', + extra_hosts='etc_hosts', + read_only='read_only', + ipc_mode='ipc_mode', + security_opt='security_opts', + ulimits='ulimits', + log_config='log_config', + mem_limit='memory', + memswap_limit='memory_swap', + mem_swappiness='memory_swappiness', + oom_score_adj='oom_score_adj', + shm_size='shm_size', + group_add='groups', + devices='devices', + pid_mode='pid_mode' + ) + params = dict() + for key, value in host_config_params.items(): + if getattr(self, value, None) is not None: + params[key] = getattr(self, value) + + if self.restart_policy: + params['restart_policy'] = dict(Name=self.restart_policy, + MaximumRetryCount=self.restart_retries) + + return self.client.create_host_config(**params) + + @property + def default_host_ip(self): + ip = '0.0.0.0' + if not self.networks: + return ip + for net in self.networks: + if net.get('name'): + network = self.client.inspect_network(net['name']) + if network.get('Driver') == 'bridge' and \ + network.get('Options', {}).get('com.docker.network.bridge.host_binding_ipv4'): + ip = network['Options']['com.docker.network.bridge.host_binding_ipv4'] + break + return ip + + def _parse_publish_ports(self): + ''' + Parse ports from docker CLI syntax + ''' + if self.published_ports is None: + return None + + if 'all' in self.published_ports: + return 'all' + + default_ip = self.default_host_ip + + binds = {} + for port in self.published_ports: + parts = str(port).split(':') + container_port = parts[-1] + if '/' not in container_port: + container_port = int(parts[-1]) + + p_len = len(parts) + if p_len == 1: + bind = (default_ip,) + elif p_len == 2: + bind = (default_ip, int(parts[0])) + elif p_len == 3: + bind = (parts[0], int(parts[1])) if parts[1] else (parts[0],) + + if container_port in binds: + old_bind = binds[container_port] + if isinstance(old_bind, list): + old_bind.append(bind) + else: + binds[container_port] = [binds[container_port], bind] + else: + binds[container_port] = bind + return binds + + @staticmethod + def _get_volume_binds(volumes): + ''' + Extract host bindings, if any, from list of volume mapping strings. + + :return: dictionary of bind mappings + ''' + result = dict() + if volumes: + for vol in volumes: + host = None + if ':' in vol: + if len(vol.split(':')) == 3: + host, container, mode = vol.split(':') + if len(vol.split(':')) == 2: + parts = vol.split(':') + if parts[1] not in VOLUME_PERMISSIONS: + host, container, mode = (vol.split(':') + ['rw']) + if host is not None: + result[host] = dict( + bind=container, + mode=mode + ) + return result + + def _parse_exposed_ports(self, published_ports): + ''' + Parse exposed ports from docker CLI-style ports syntax. + ''' + exposed = [] + if self.exposed_ports: + for port in self.exposed_ports: + port = str(port).strip() + protocol = 'tcp' + match = re.search(r'(/.+$)', port) + if match: + protocol = match.group(1).replace('/', '') + port = re.sub(r'/.+$', '', port) + exposed.append((port, protocol)) + if published_ports: + # Any published port should also be exposed + for publish_port in published_ports: + match = False + if isinstance(publish_port, basestring) and '/' in publish_port: + port, protocol = publish_port.split('/') + port = int(port) + else: + protocol = 'tcp' + port = int(publish_port) + for exposed_port in exposed: + if isinstance(exposed_port[0], basestring) and '-' in exposed_port[0]: + start_port, end_port = exposed_port[0].split('-') + if int(start_port) <= port <= int(end_port): + match = True + elif exposed_port[0] == port: + match = True + if not match: + exposed.append((port, protocol)) + return exposed + + @staticmethod + def _parse_links(links): + ''' + Turn links into a dictionary + ''' + if links is None: + return None + + result = {} + for link in links: + parsed_link = link.split(':', 1) + if len(parsed_link) == 2: + result[parsed_link[0]] = parsed_link[1] + else: + result[parsed_link[0]] = parsed_link[0] + return result + + def _parse_ulimits(self): + ''' + Turn ulimits into an array of Ulimit objects + ''' + if self.ulimits is None: + return None + + results = [] + for limit in self.ulimits: + limits = dict() + pieces = limit.split(':') + if len(pieces) >= 2: + limits['name'] = pieces[0] + limits['soft'] = int(pieces[1]) + limits['hard'] = int(pieces[1]) + if len(pieces) == 3: + limits['hard'] = int(pieces[2]) + try: + results.append(Ulimit(**limits)) + except ValueError as exc: + self.fail("Error parsing ulimits value %s - %s" % (limit, exc)) + return results + + def _parse_log_config(self): + ''' + Create a LogConfig object + ''' + if self.log_driver is None: + return None + + options = dict( + Type=self.log_driver, + Config = dict() + ) + + if self.log_options is not None: + options['Config'] = self.log_options + + try: + return LogConfig(**options) + except ValueError as exc: + self.fail('Error parsing logging options - %s' % (exc)) + + def _get_environment(self): + """ + If environment file is combined with explicit environment variables, the explicit environment variables + take precedence. + """ + final_env = {} + if self.env_file: + parsed_env_file = utils.parse_env_file(self.env_file) + for name, value in parsed_env_file.items(): + final_env[name] = str(value) + if self.env: + for name, value in self.env.items(): + final_env[name] = str(value) + return final_env + + def _get_network_id(self, network_name): + network_id = None + try: + for network in self.client.networks(names=[network_name]): + if network['Name'] == network_name: + network_id = network['Id'] + break + except Exception as exc: + self.fail("Error getting network id for %s - %s" % (network_name, str(exc))) + return network_id + + + +class Container(DockerBaseClass): + + def __init__(self, container, parameters): + super(Container, self).__init__() + self.raw = container + self.Id = None + self.container = container + if container: + self.Id = container['Id'] + self.Image = container['Image'] + self.log(self.container, pretty_print=True) + self.parameters = parameters + self.parameters.expected_links = None + self.parameters.expected_ports = None + self.parameters.expected_exposed = None + self.parameters.expected_volumes = None + self.parameters.expected_ulimits = None + self.parameters.expected_etc_hosts = None + self.parameters.expected_env = None + + def fail(self, msg): + self.parameters.client.module.fail_json(msg=msg) + + @property + def exists(self): + return True if self.container else False + + @property + def running(self): + if self.container and self.container.get('State'): + if self.container['State'].get('Running') and not self.container['State'].get('Ghost', False): + return True + return False + + def has_different_configuration(self, image): + ''' + Diff parameters vs existing container config. Returns tuple: (True | False, List of differences) + ''' + self.log('Starting has_different_configuration') + self.parameters.expected_entrypoint = self._get_expected_entrypoint() + self.parameters.expected_links = self._get_expected_links() + self.parameters.expected_ports = self._get_expected_ports() + self.parameters.expected_exposed = self._get_expected_exposed(image) + self.parameters.expected_volumes = self._get_expected_volumes(image) + self.parameters.expected_binds = self._get_expected_binds(image) + self.parameters.expected_ulimits = self._get_expected_ulimits(self.parameters.ulimits) + self.parameters.expected_etc_hosts = self._convert_simple_dict_to_list('etc_hosts') + self.parameters.expected_env = self._get_expected_env(image) + self.parameters.expected_cmd = self._get_expected_cmd() + self.parameters.expected_devices = self._get_expected_devices() + + if not self.container.get('HostConfig'): + self.fail("has_config_diff: Error parsing container properties. HostConfig missing.") + if not self.container.get('Config'): + self.fail("has_config_diff: Error parsing container properties. Config missing.") + if not self.container.get('NetworkSettings'): + self.fail("has_config_diff: Error parsing container properties. NetworkSettings missing.") + + host_config = self.container['HostConfig'] + log_config = host_config.get('LogConfig', dict()) + restart_policy = host_config.get('RestartPolicy', dict()) + config = self.container['Config'] + network = self.container['NetworkSettings'] + + # The previous version of the docker module ignored the detach state by + # assuming if the container was running, it must have been detached. + detach = not (config.get('AttachStderr') and config.get('AttachStdout')) + + # "ExposedPorts": null returns None type & causes AttributeError - PR #5517 + if config.get('ExposedPorts') is not None: + expected_exposed = [re.sub(r'/.+$', '', p) for p in config.get('ExposedPorts', dict()).keys()] + else: + expected_exposed = [] + + # Map parameters to container inspect results + config_mapping = dict( + image=config.get('Image'), + expected_cmd=config.get('Cmd'), + hostname=config.get('Hostname'), + user=config.get('User'), + detach=detach, + interactive=config.get('OpenStdin'), + capabilities=host_config.get('CapAdd'), + expected_devices=host_config.get('Devices'), + dns_servers=host_config.get('Dns'), + dns_opts=host_config.get('DnsOptions'), + dns_search_domains=host_config.get('DnsSearch'), + expected_env=(config.get('Env') or []), + expected_entrypoint=config.get('Entrypoint'), + expected_etc_hosts=host_config['ExtraHosts'], + expected_exposed=expected_exposed, + groups=host_config.get('GroupAdd'), + ipc_mode=host_config.get("IpcMode"), + labels=config.get('Labels'), + expected_links=host_config.get('Links'), + log_driver=log_config.get('Type'), + log_options=log_config.get('Config'), + mac_address=network.get('MacAddress'), + memory_swappiness=host_config.get('MemorySwappiness'), + network_mode=host_config.get('NetworkMode'), + oom_killer=host_config.get('OomKillDisable'), + oom_score_adj=host_config.get('OomScoreAdj'), + pid_mode=host_config.get('PidMode'), + privileged=host_config.get('Privileged'), + expected_ports=host_config.get('PortBindings'), + read_only=host_config.get('ReadonlyRootfs'), + restart_policy=restart_policy.get('Name'), + restart_retries=restart_policy.get('MaximumRetryCount'), + # Cannot test shm_size, as shm_size is not included in container inspection results. + # shm_size=host_config.get('ShmSize'), + security_opts=host_config.get("SecuriytOpt"), + stop_signal=config.get("StopSignal"), + tty=config.get('Tty'), + expected_ulimits=host_config.get('Ulimits'), + uts=host_config.get('UTSMode'), + expected_volumes=config.get('Volumes'), + expected_binds=host_config.get('Binds'), + volumes_from=host_config.get('VolumesFrom'), + volume_driver=host_config.get('VolumeDriver') + ) + + differences = [] + for key, value in config_mapping.items(): + self.log('check differences %s %s vs %s' % (key, getattr(self.parameters, key), str(value))) + if getattr(self.parameters, key, None) is not None: + if isinstance(getattr(self.parameters, key), list) and isinstance(value, list): + if len(getattr(self.parameters, key)) > 0 and isinstance(getattr(self.parameters, key)[0], dict): + # compare list of dictionaries + self.log("comparing list of dict: %s" % key) + match = self._compare_dictionary_lists(getattr(self.parameters, key), value) + else: + # compare two lists. Is list_a in list_b? + self.log("comparing lists: %s" % key) + set_a = set(getattr(self.parameters, key)) + set_b = set(value) + match = (set_a <= set_b) + elif isinstance(getattr(self.parameters, key), dict) and isinstance(value, dict): + # compare two dicts + self.log("comparing two dicts: %s" % key) + match = self._compare_dicts(getattr(self.parameters, key), value) + else: + # primitive compare + self.log("primitive compare: %s" % key) + match = (getattr(self.parameters, key) == value) + + if not match: + # no match. record the differences + item = dict() + item[key] = dict( + parameter=getattr(self.parameters, key), + container=value + ) + differences.append(item) + + has_differences = True if len(differences) > 0 else False + return has_differences, differences + + def _compare_dictionary_lists(self, list_a, list_b): + ''' + If all of list_a exists in list_b, return True + ''' + if not isinstance(list_a, list) or not isinstance(list_b, list): + return False + matches = 0 + for dict_a in list_a: + for dict_b in list_b: + if self._compare_dicts(dict_a, dict_b): + matches += 1 + break + result = (matches == len(list_a)) + return result + + def _compare_dicts(self, dict_a, dict_b): + ''' + If dict_a in dict_b, return True + ''' + if not isinstance(dict_a, dict) or not isinstance(dict_b, dict): + return False + for key, value in dict_a.items(): + if isinstance(value, dict): + match = self._compare_dicts(value, dict_b.get(key)) + elif isinstance(value, list): + if len(value) > 0 and isinstance(value[0], dict): + match = self._compare_dictionary_lists(value, dict_b.get(key)) + else: + set_a = set(value) + set_b = set(dict_b.get(key)) + match = (set_a == set_b) + else: + match = (value == dict_b.get(key)) + if not match: + return False + return True + + def has_different_resource_limits(self): + ''' + Diff parameters and container resource limits + ''' + if not self.container.get('HostConfig'): + self.fail("limits_differ_from_container: Error parsing container properties. HostConfig missing.") + + host_config = self.container['HostConfig'] + + config_mapping = dict( + cpu_period=host_config.get('CpuPeriod'), + cpu_quota=host_config.get('CpuQuota'), + cpuset_cpus=host_config.get('CpusetCpus'), + cpuset_mems=host_config.get('CpusetMems'), + cpu_shares=host_config.get('CpuShares'), + kernel_memory=host_config.get("KernelMemory"), + memory=host_config.get('Memory'), + memory_reservation=host_config.get('MemoryReservation'), + memory_swap=host_config.get('MemorySwap'), + oom_score_adj=host_config.get('OomScoreAdj'), + ) + + differences = [] + for key, value in config_mapping.items(): + if getattr(self.parameters, key, None) and getattr(self.parameters, key) != value: + # no match. record the differences + item = dict() + item[key] = dict( + parameter=getattr(self.parameters, key), + container=value + ) + differences.append(item) + different = (len(differences) > 0) + return different, differences + + def has_network_differences(self): + ''' + Check if the container is connected to requested networks with expected options: links, aliases, ipv4, ipv6 + ''' + different = False + differences = [] + + if not self.parameters.networks: + return different, differences + + if not self.container.get('NetworkSettings'): + self.fail("has_missing_networks: Error parsing container properties. NetworkSettings missing.") + + connected_networks = self.container['NetworkSettings']['Networks'] + for network in self.parameters.networks: + if connected_networks.get(network['name'], None) is None: + different = True + differences.append(dict( + parameter=network, + container=None + )) + else: + diff = False + if network.get('ipv4_address') and network['ipv4_address'] != connected_networks[network['name']].get('IPAddress'): + diff = True + if network.get('ipv6_address') and network['ipv6_address'] != connected_networks[network['name']].get('GlobalIPv6Address'): + diff = True + if network.get('aliases') and not connected_networks[network['name']].get('Aliases'): + diff = True + if network.get('aliases') and connected_networks[network['name']].get('Aliases'): + for alias in network.get('aliases'): + if alias not in connected_networks[network['name']].get('Aliases', []): + diff = True + if network.get('links') and not connected_networks[network['name']].get('Links'): + diff = True + if network.get('links') and connected_networks[network['name']].get('Links'): + expected_links = [] + for link, alias in network['links'].items(): + expected_links.append("%s:%s" % (link, alias)) + for link in expected_links: + if link not in connected_networks[network['name']].get('Links', []): + diff = True + if diff: + different = True + differences.append(dict( + parameter=network, + container=dict( + name=network['name'], + ipv4_address=connected_networks[network['name']].get('IPAddress'), + ipv6_address=connected_networks[network['name']].get('GlobalIPv6Address'), + aliases=connected_networks[network['name']].get('Aliases'), + links=connected_networks[network['name']].get('Links') + ) + )) + return different, differences + + def has_extra_networks(self): + ''' + Check if the container is connected to non-requested networks + ''' + extra_networks = [] + extra = False + + if not self.container.get('NetworkSettings'): + self.fail("has_extra_networks: Error parsing container properties. NetworkSettings missing.") + + connected_networks = self.container['NetworkSettings'].get('Networks') + if connected_networks: + for network, network_config in connected_networks.items(): + keep = False + if self.parameters.networks: + for expected_network in self.parameters.networks: + if expected_network['name'] == network: + keep = True + if not keep: + extra = True + extra_networks.append(dict(name=network, id=network_config['NetworkID'])) + return extra, extra_networks + + def _get_expected_devices(self): + if not self.parameters.devices: + return None + expected_devices = [] + for device in self.parameters.devices: + parts = device.split(':') + if len(parts) == 1: + expected_devices.append( + dict( + CgroupPermissions='rwm', + PathInContainer=parts[0], + PathOnHost=parts[0] + )) + elif len(parts) == 2: + parts = device.split(':') + expected_devices.append( + dict( + CgroupPermissions='rwm', + PathInContainer=parts[1], + PathOnHost=parts[0] + ) + ) + else: + expected_devices.append( + dict( + CgroupPermissions=parts[2], + PathInContainer=parts[1], + PathOnHost=parts[0] + )) + return expected_devices + + def _get_expected_entrypoint(self): + self.log('_get_expected_entrypoint') + if not self.parameters.entrypoint: + return None + return shlex.split(self.parameters.entrypoint) + + def _get_expected_ports(self): + if not self.parameters.published_ports: + return None + expected_bound_ports = {} + for container_port, config in self.parameters.published_ports.items(): + if isinstance(container_port, int): + container_port = "%s/tcp" % container_port + if len(config) == 1: + expected_bound_ports[container_port] = [{'HostIp': "0.0.0.0", 'HostPort': ""}] + elif isinstance(config[0], tuple): + expected_bound_ports[container_port] = [] + for host_ip, host_port in config: + expected_bound_ports[container_port].append({'HostIp': host_ip, 'HostPort': str(host_port)}) + else: + expected_bound_ports[container_port] = [{'HostIp': config[0], 'HostPort': str(config[1])}] + return expected_bound_ports + + def _get_expected_links(self): + if self.parameters.links is None: + return None + self.log('parameter links:') + self.log(self.parameters.links, pretty_print=True) + exp_links = [] + for link, alias in self.parameters.links.items(): + exp_links.append("/%s:%s/%s" % (link, ('/' + self.parameters.name), alias)) + return exp_links + + def _get_expected_binds(self, image): + self.log('_get_expected_binds') + image_vols = [] + if image: + image_vols = self._get_image_binds(image['ContainerConfig'].get('Volumes')) + param_vols = [] + if self.parameters.volumes: + for vol in self.parameters.volumes: + host = None + if ':' in vol: + if len(vol.split(':')) == 3: + host, container, mode = vol.split(':') + if len(vol.split(':')) == 2: + parts = vol.split(':') + if parts[1] not in VOLUME_PERMISSIONS: + host, container, mode = vol.split(':') + ['rw'] + if host: + param_vols.append("%s:%s:%s" % (host, container, mode)) + result = list(set(image_vols + param_vols)) + self.log("expected_binds:") + self.log(result, pretty_print=True) + return result + + def _get_image_binds(self, volumes): + ''' + Convert array of binds to array of strings with format host_path:container_path:mode + + :param volumes: array of bind dicts + :return: array of strings + ''' + results = [] + if isinstance(volumes, dict): + results += self._get_bind_from_dict(volumes) + elif isinstance(volumes, list): + for vol in volumes: + results += self._get_bind_from_dict(vol) + return results + + @staticmethod + def _get_bind_from_dict(volume_dict): + results = [] + if volume_dict: + for host_path, config in volume_dict.items(): + if isinstance(config, dict) and config.get('bind'): + container_path = config.get('bind') + mode = config.get('mode', 'rw') + results.append("%s:%s:%s" % (host_path, container_path, mode)) + return results + + def _get_expected_volumes(self, image): + self.log('_get_expected_volumes') + expected_vols = dict() + if image and image['ContainerConfig'].get('Volumes'): + expected_vols.update(image['ContainerConfig'].get('Volumes')) + + if self.parameters.volumes: + for vol in self.parameters.volumes: + container = None + if ':' in vol: + if len(vol.split(':')) == 3: + host, container, mode = vol.split(':') + if len(vol.split(':')) == 2: + parts = vol.split(':') + if parts[1] not in VOLUME_PERMISSIONS: + host, container, mode = vol.split(':') + ['rw'] + new_vol = dict() + if container: + new_vol[container] = dict() + else: + new_vol[vol] = dict() + expected_vols.update(new_vol) + + if not expected_vols: + expected_vols = None + self.log("expected_volumes:") + self.log(expected_vols, pretty_print=True) + return expected_vols + + def _get_expected_env(self, image): + self.log('_get_expected_env') + expected_env = dict() + if image and image['ContainerConfig'].get('Env'): + for env_var in image['ContainerConfig']['Env']: + parts = env_var.split('=', 1) + expected_env[parts[0]] = parts[1] + if self.parameters.env: + expected_env.update(self.parameters.env) + param_env = [] + for key, value in expected_env.items(): + param_env.append("%s=%s" % (key, value)) + return param_env + + def _get_expected_exposed(self, image): + self.log('_get_expected_exposed') + image_ports = [] + if image: + image_ports = [re.sub(r'/.+$', '', p) for p in (image['ContainerConfig'].get('ExposedPorts') or {}).keys()] + param_ports = [] + if self.parameters.ports: + param_ports = [str(p[0]) for p in self.parameters.ports] + result = list(set(image_ports + param_ports)) + self.log(result, pretty_print=True) + return result + + def _get_expected_ulimits(self, config_ulimits): + self.log('_get_expected_ulimits') + if config_ulimits is None: + return None + results = [] + for limit in config_ulimits: + results.append(dict( + Name=limit.name, + Soft=limit.soft, + Hard=limit.hard + )) + return results + + def _get_expected_cmd(self): + self.log('_get_expected_cmd') + if not self.parameters.command: + return None + return shlex.split(self.parameters.command) + + def _convert_simple_dict_to_list(self, param_name, join_with=':'): + if getattr(self.parameters, param_name, None) is None: + return None + results = [] + for key, value in getattr(self.parameters, param_name).items(): + results.append("%s%s%s" % (key, join_with, value)) + return results + + +class ContainerManager(DockerBaseClass): + ''' + Perform container management tasks + ''' + + def __init__(self, client): + + super(ContainerManager, self).__init__() + + self.client = client + self.parameters = TaskParameters(client) + self.check_mode = self.client.check_mode + self.results = {'changed': False, 'actions': []} + self.diff = {} + self.facts = {} + + state = self.parameters.state + if state in ('stopped', 'started', 'present'): + self.present(state) + elif state == 'absent': + self.absent() + + if not self.check_mode and not self.parameters.debug: + self.results.pop('actions') + + if self.client.module._diff or self.parameters.debug: + self.results['diff'] = self.diff + + if self.facts: + self.results['ansible_facts'] = {'docker_container': self.facts} + + def present(self, state): + container = self._get_container(self.parameters.name) + image = self._get_image() + + if not container.exists: + # New container + self.log('No container found') + new_container = self.container_create(self.parameters.image, self.parameters.create_parameters) + if new_container: + container = new_container + else: + # Existing container + different, differences = container.has_different_configuration(image) + image_different = False + if not self.parameters.ignore_image: + image_different = self._image_is_different(image, container) + if image_different or different or self.parameters.recreate: + self.diff['differences'] = differences + if image_different: + self.diff['image_different'] = True + self.log("differences") + self.log(differences, pretty_print=True) + if container.running: + self.container_stop(container.Id) + self.container_remove(container.Id) + new_container = self.container_create(self.parameters.image, self.parameters.create_parameters) + if new_container: + container = new_container + + if container and container.exists: + container = self.update_limits(container) + container = self.update_networks(container) + + if state == 'started' and not container.running: + container = self.container_start(container.Id) + elif state == 'started' and self.parameters.restart: + self.container_stop(container.Id) + container = self.container_start(container.Id) + elif state == 'stopped' and container.running: + self.container_stop(container.Id) + container = self._get_container(container.Id) + + self.facts = container.raw + + def absent(self): + container = self._get_container(self.parameters.name) + if container.exists: + if container.running: + self.container_stop(container.Id) + self.container_remove(container.Id) + + def fail(self, msg, **kwargs): + self.client.module.fail_json(msg=msg, **kwargs) + + def _get_container(self, container): + ''' + Expects container ID or Name. Returns a container object + ''' + return Container(self.client.get_container(container), self.parameters) + + def _get_image(self): + if not self.parameters.image: + self.log('No image specified') + return None + repository, tag = utils.parse_repository_tag(self.parameters.image) + if not tag: + tag = "latest" + image = self.client.find_image(repository, tag) + if not self.check_mode: + if not image or self.parameters.pull: + self.log("Pull the image.") + image, alreadyToLatest = self.client.pull_image(repository, tag) + if alreadyToLatest: + self.results['changed'] = False + else: + self.results['changed'] = True + self.results['actions'].append(dict(pulled_image="%s:%s" % (repository, tag))) + self.log("image") + self.log(image, pretty_print=True) + return image + + def _image_is_different(self, image, container): + if image and image.get('Id'): + if container and container.Image: + if image.get('Id') != container.Image: + return True + return False + + def update_limits(self, container): + limits_differ, different_limits = container.has_different_resource_limits() + if limits_differ: + self.log("limit differences:") + self.log(different_limits, pretty_print=True) + if limits_differ and not self.check_mode: + self.container_update(container.Id, self.parameters.update_parameters) + return self._get_container(container.Id) + return container + + def update_networks(self, container): + has_network_differences, network_differences = container.has_network_differences() + updated_container = container + if has_network_differences: + if self.diff.get('differences'): + self.diff['differences'].append(dict(network_differences=network_differences)) + else: + self.diff['differences'] = [dict(network_differences=network_differences)] + self.results['changed'] = True + updated_container = self._add_networks(container, network_differences) + + if self.parameters.purge_networks: + has_extra_networks, extra_networks = container.has_extra_networks() + if has_extra_networks: + if self.diff.get('differences'): + self.diff['differences'].append(dict(purge_networks=extra_networks)) + else: + self.diff['differences'] = [dict(purge_networks=extra_networks)] + self.results['changed'] = True + updated_container = self._purge_networks(container, extra_networks) + return updated_container + + def _add_networks(self, container, differences): + for diff in differences: + # remove the container from the network, if connected + if diff.get('container'): + self.results['actions'].append(dict(removed_from_network=diff['parameter']['name'])) + if not self.check_mode: + try: + self.client.disconnect_container_from_network(container.Id, diff['parameter']['id']) + except Exception as exc: + self.fail("Error disconnecting container from network %s - %s" % (diff['parameter']['name'], + str(exc))) + # connect to the network + params = dict( + ipv4_address=diff['parameter'].get('ipv4_address', None), + ipv6_address=diff['parameter'].get('ipv6_address', None), + links=diff['parameter'].get('links', None), + aliases=diff['parameter'].get('aliases', None) + ) + self.results['actions'].append(dict(added_to_network=diff['parameter']['name'], network_parameters=params)) + if not self.check_mode: + try: + self.log("Connecting container to network %s" % diff['parameter']['id']) + self.log(params, pretty_print=True) + self.client.connect_container_to_network(container.Id, diff['parameter']['id'], **params) + except Exception as exc: + self.fail("Error connecting container to network %s - %s" % (diff['parameter']['name'], str(exc))) + return self._get_container(container.Id) + + def _purge_networks(self, container, networks): + for network in networks: + self.results['actions'].append(dict(removed_from_network=network['name'])) + if not self.check_mode: + try: + self.client.disconnect_container_from_network(container.Id, network['name']) + except Exception as exc: + self.fail("Error disconnecting container from network %s - %s" % (network['name'], + str(exc))) + return self._get_container(container.Id) + + def container_create(self, image, create_parameters): + self.log("create container") + self.log("image: %s parameters:" % image) + self.log(create_parameters, pretty_print=True) + self.results['actions'].append(dict(created="Created container", create_parameters=create_parameters)) + self.results['changed'] = True + new_container = None + if not self.check_mode: + try: + new_container = self.client.create_container(image, **create_parameters) + except Exception as exc: + self.fail("Error creating container: %s" % str(exc)) + return self._get_container(new_container['Id']) + return new_container + + def container_start(self, container_id): + self.log("start container %s" % (container_id)) + self.results['actions'].append(dict(started=container_id)) + self.results['changed'] = True + if not self.check_mode: + try: + self.client.start(container=container_id) + except Exception as exc: + self.fail("Error starting container %s: %s" % (container_id, str(exc))) + + if not self.parameters.detach: + status = self.client.wait(container_id) + output = self.client.logs(container_id, stdout=True, stderr=True, stream=False, timestamps=False) + if status != 0: + self.fail(output, status=status) + if self.parameters.cleanup: + self.container_remove(container_id, force=True) + insp = self._get_container(container_id) + if insp.raw: + insp.raw['Output'] = output + else: + insp.raw = dict(Output=output) + return insp + return self._get_container(container_id) + + def container_remove(self, container_id, link=False, force=False): + volume_state = (not self.parameters.keep_volumes) + self.log("remove container container:%s v:%s link:%s force%s" % (container_id, volume_state, link, force)) + self.results['actions'].append(dict(removed=container_id, volume_state=volume_state, link=link, force=force)) + self.results['changed'] = True + response = None + if not self.check_mode: + try: + response = self.client.remove_container(container_id, v=volume_state, link=link, force=force) + except Exception as exc: + self.fail("Error removing container %s: %s" % (container_id, str(exc))) + return response + + def container_update(self, container_id, update_parameters): + if update_parameters: + self.log("update container %s" % (container_id)) + self.log(update_parameters, pretty_print=True) + self.results['actions'].append(dict(updated=container_id, update_parameters=update_parameters)) + self.results['changed'] = True + if not self.check_mode and callable(getattr(self.client, 'update_container')): + try: + self.client.update_container(container_id, **update_parameters) + except Exception as exc: + self.fail("Error updating container %s: %s" % (container_id, str(exc))) + return self._get_container(container_id) + + def container_kill(self, container_id): + self.results['actions'].append(dict(killed=container_id, signal=self.parameters.kill_signal)) + self.results['changed'] = True + response = None + if not self.check_mode: + try: + if self.parameters.kill_signal: + response = self.client.kill(container_id, signal=self.parameters.kill_signal) + else: + response = self.client.kill(container_id) + except Exception as exc: + self.fail("Error killing container %s: %s" % (container_id, exc)) + return response + + def container_stop(self, container_id): + if self.parameters.force_kill: + self.container_kill(container_id) + return + self.results['actions'].append(dict(stopped=container_id, timeout=self.parameters.stop_timeout)) + self.results['changed'] = True + response = None + if not self.check_mode: + try: + if self.parameters.stop_timeout: + response = self.client.stop(container_id, timeout=self.parameters.stop_timeout) + else: + response = self.client.stop(container_id) + except Exception as exc: + self.fail("Error stopping container %s: %s" % (container_id, str(exc))) + return response + + +def main(): + argument_spec = dict( + blkio_weight=dict(type='int'), + capabilities=dict(type='list'), + cleanup=dict(type='bool', default=False), + command=dict(type='str'), + cpu_period=dict(type='int'), + cpu_quota=dict(type='int'), + cpuset_cpus=dict(type='str'), + cpuset_mems=dict(type='str'), + cpu_shares=dict(type='int'), + detach=dict(type='bool', default=True), + devices=dict(type='list'), + dns_servers=dict(type='list'), + dns_opts=dict(type='list'), + dns_search_domains=dict(type='list'), + env=dict(type='dict'), + env_file=dict(type='path'), + entrypoint=dict(type='str'), + etc_hosts=dict(type='dict'), + exposed_ports=dict(type='list', aliases=['exposed', 'expose']), + force_kill=dict(type='bool', default=False, aliases=['forcekill']), + groups=dict(type='list'), + hostname=dict(type='str'), + ignore_image=dict(type='bool', default=False), + image=dict(type='str'), + interactive=dict(type='bool', default=False), + ipc_mode=dict(type='str'), + keep_volumes=dict(type='bool', default=True), + kernel_memory=dict(type='str'), + kill_signal=dict(type='str'), + labels=dict(type='dict'), + links=dict(type='list'), + log_driver=dict(type='str', + choices=['none', 'json-file', 'syslog', 'journald', 'gelf', 'fluentd', 'awslogs', 'splunk'], + default=None), + log_options=dict(type='dict', aliases=['log_opt']), + mac_address=dict(type='str'), + memory=dict(type='str', default='0'), + memory_reservation=dict(type='str'), + memory_swap=dict(type='str'), + memory_swappiness=dict(type='int'), + name=dict(type='str', required=True), + network_mode=dict(type='str'), + networks=dict(type='list'), + oom_killer=dict(type='bool'), + oom_score_adj=dict(type='int'), + paused=dict(type='bool', default=False), + pid_mode=dict(type='str'), + privileged=dict(type='bool', default=False), + published_ports=dict(type='list', aliases=['ports']), + pull=dict(type='bool', default=False), + purge_networks=dict(type='bool', default=False), + read_only=dict(type='bool', default=False), + recreate=dict(type='bool', default=False), + restart=dict(type='bool', default=False), + restart_policy=dict(type='str', choices=['no', 'on-failure', 'always', 'unless-stopped']), + restart_retries=dict(type='int', default=None), + shm_size=dict(type='str'), + security_opts=dict(type='list'), + state=dict(type='str', choices=['absent', 'present', 'started', 'stopped'], default='started'), + stop_signal=dict(type='str'), + stop_timeout=dict(type='int'), + trust_image_content=dict(type='bool', default=False), + tty=dict(type='bool', default=False), + ulimits=dict(type='list'), + user=dict(type='str'), + uts=dict(type='str'), + volumes=dict(type='list'), + volumes_from=dict(type='list'), + volume_driver=dict(type='str'), + ) + + required_if = [ + ('state', 'present', ['image']) + ] + + client = AnsibleDockerClient( + argument_spec=argument_spec, + required_if=required_if, + supports_check_mode=True + ) + + cm = ContainerManager(client) + client.module.exit_json(**cm.results) + +# import module snippets +from ansible.module_utils.basic import * + +if __name__ == '__main__': + main()
\ No newline at end of file diff --git a/roles/openshift_health_checker/library/docker_info.py b/roles/openshift_health_checker/library/docker_info.py new file mode 100644 index 000000000..7f712bcff --- /dev/null +++ b/roles/openshift_health_checker/library/docker_info.py @@ -0,0 +1,24 @@ +# pylint: disable=missing-docstring +""" +Ansible module for determining information about the docker host. + +While there are several ansible modules that make use of the docker +api to expose container and image facts in a remote host, they +are unable to return specific information about the host machine +itself. This module exposes the same information obtained through +executing the `docker info` command on a docker host, in json format. +""" + +from ansible.module_utils.docker_common import AnsibleDockerClient + + +def main(): + client = AnsibleDockerClient() + + client.module.exit_json( + info=client.info(), + ) + + +if __name__ == '__main__': + main() diff --git a/roles/openshift_health_checker/openshift_checks/docker_image_availability.py b/roles/openshift_health_checker/openshift_checks/docker_image_availability.py new file mode 100644 index 000000000..7a7498cb7 --- /dev/null +++ b/roles/openshift_health_checker/openshift_checks/docker_image_availability.py @@ -0,0 +1,168 @@ +# pylint: disable=missing-docstring +from openshift_checks import OpenShiftCheck, get_var + + +class DockerImageAvailability(OpenShiftCheck): + """Check that required Docker images are available. + + This check attempts to ensure that required docker images are + either present locally, or able to be pulled down from available + registries defined in a host machine. + """ + + name = "docker_image_availability" + tags = ["preflight"] + + skopeo_image = "openshift/openshift-ansible" + + docker_image_base = { + "origin": { + "repo": "openshift", + "image": "origin", + }, + "openshift-enterprise": { + "repo": "openshift3", + "image": "ose", + }, + } + + def run(self, tmp, task_vars): + required_images = self.required_images(task_vars) + missing_images = set(required_images) - set(self.local_images(required_images, task_vars)) + + # exit early if all images were found locally + if not missing_images: + return {"changed": False} + + msg, failed, changed = self.update_skopeo_image(task_vars) + + # exit early if Skopeo update fails + if failed: + return { + "failed": True, + "changed": changed, + "msg": "Failed to update Skopeo image ({img_name}). {msg}".format(img_name=self.skopeo_image, msg=msg), + } + + registries = self.known_docker_registries(task_vars) + available_images = self.available_images(missing_images, registries, task_vars) + unavailable_images = set(missing_images) - set(available_images) + + if unavailable_images: + return { + "failed": True, + "msg": ( + "One or more required images are not available: {}.\n" + "Configured registries: {}" + ).format(", ".join(sorted(unavailable_images)), ", ".join(registries)), + "changed": changed, + } + + return {"changed": changed} + + def required_images(self, task_vars): + deployment_type = get_var(task_vars, "deployment_type") + image_base_name = self.docker_image_base[deployment_type] + + openshift_release = get_var(task_vars, "openshift_release") + openshift_image_tag = get_var(task_vars, "openshift_image_tag") + + is_containerized = get_var(task_vars, "openshift", "common", "is_containerized") + + if is_containerized: + images = set(self.containerized_docker_images(image_base_name, openshift_release)) + else: + images = set(self.rpm_docker_images(image_base_name, openshift_release)) + + # append images with qualified image tags to our list of required images. + # these are images with a (v0.0.0.0) tag, rather than a standard release + # format tag (v0.0). We want to check this set in both containerized and + # non-containerized installations. + images.update( + self.qualified_docker_images(self.image_from_base_name(image_base_name), "v" + openshift_image_tag) + ) + + return images + + def local_images(self, images, task_vars): + """Filter a list of images and return those available locally.""" + return [ + image for image in images + if self.is_image_local(image, task_vars) + ] + + def is_image_local(self, image, task_vars): + result = self.module_executor("docker_image_facts", {"name": image}, task_vars) + if result.get("failed", False): + return False + + return bool(result.get("images", [])) + + def known_docker_registries(self, task_vars): + result = self.module_executor("docker_info", {}, task_vars) + + if result.get("failed", False): + return [] + + docker_info = result.get("info", "") + return [registry.get("Name", "") for registry in docker_info.get("Registries", {})] + + def available_images(self, images, registries, task_vars): + """Inspect existing images using Skopeo and return all images successfully inspected.""" + return [ + image for image in images + if self.is_image_available(image, registries, task_vars) + ] + + def is_image_available(self, image, registries, task_vars): + for registry in registries: + if self.is_available_skopeo_image(image, registry, task_vars): + return True + + return False + + def is_available_skopeo_image(self, image, registry, task_vars): + """Uses Skopeo to determine if required image exists in a given registry.""" + + cmd_str = "skopeo inspect docker://{registry}/{image}".format( + registry=registry, + image=image, + ) + + args = { + "name": "skopeo_inspect", + "image": self.skopeo_image, + "command": cmd_str, + "detach": False, + "cleanup": True, + } + result = self.module_executor("docker_container", args, task_vars) + return result.get("failed", False) + + def containerized_docker_images(self, base_name, version): + return [ + "{image}:{version}".format(image=self.image_from_base_name(base_name), version=version) + ] + + @staticmethod + def rpm_docker_images(base, version): + return [ + "{image_repo}/registry-console:{version}".format(image_repo=base["repo"], version=version) + ] + + @staticmethod + def qualified_docker_images(image_name, version): + return [ + "{}-{}:{}".format(image_name, component, version) + for component in "haproxy-router docker-registry deployer pod".split() + ] + + @staticmethod + def image_from_base_name(base): + return "".join([base["repo"], "/", base["image"]]) + + # ensures that the skopeo docker image exists, and updates it + # with latest if image was already present locally. + def update_skopeo_image(self, task_vars): + result = self.module_executor("docker_image", {"name": self.skopeo_image}, task_vars) + return result.get("msg", ""), result.get("failed", False), result.get("changed", False) |