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Diffstat (limited to 'playbooks/adhoc/preflight')
| -rw-r--r-- | playbooks/adhoc/preflight/README.md | 51 | ||||
| -rw-r--r-- | playbooks/adhoc/preflight/check.yml | 159 | ||||
| l--------- | playbooks/adhoc/preflight/library | 1 |
3 files changed, 211 insertions, 0 deletions
diff --git a/playbooks/adhoc/preflight/README.md b/playbooks/adhoc/preflight/README.md new file mode 100644 index 000000000..871c6af01 --- /dev/null +++ b/playbooks/adhoc/preflight/README.md @@ -0,0 +1,51 @@ +# Preflight checks + +Here we provide an Ansible playbook for detecting potential roadblocks prior to +an install or upgrade. + +Ansible's default operation mode is to fail fast, on the first error. However, +when performing checks, it is useful to gather as much information about +problems as possible in a single run. + +The `check.yml` playbook runs a battery of checks against the inventory hosts +and tells Ansible to ignore intermediate errors, thus giving a more complete +diagnostic of the state of each host. Still, if any check failed, the playbook +run will be marked as having failed. + +To facilitate understanding the problems that were encountered, we provide a +custom callback plugin to summarize execution errors at the end of a playbook +run. + +--- + +*Note that currently the `check.yml` playbook is only useful for RPM-based +installations. Containerized installs are excluded from checks for now, but +might be included in the future if there is demand for that.* + +--- + +## Running + +With an installation of Ansible 2.2 or greater, run the playbook directly +against your inventory file. Here is the step-by-step: + +1. If you haven't done it yet, clone this repository: + + ```console + $ git clone https://github.com/openshift/openshift-ansible + $ cd openshift-ansible + ``` + +2. Configure a custom callback plugin to get a summary of problems at the end of +the playbook run: + + ```console + $ export ANSIBLE_CALLBACK_PLUGINS=callback_plugins \ + ANSIBLE_STDOUT_CALLBACK=default_plus_summary + ``` + +3. Run the playbook: + + ```console + $ ansible-playbook -i <inventory file> playbooks/adhoc/preflight/check.yml + ``` diff --git a/playbooks/adhoc/preflight/check.yml b/playbooks/adhoc/preflight/check.yml new file mode 100644 index 000000000..b66c1a824 --- /dev/null +++ b/playbooks/adhoc/preflight/check.yml @@ -0,0 +1,159 @@ +--- +- hosts: OSEv3 + gather_facts: no + tasks: + - set_fact: + deployment_type: "{{ deployment_type | default('openshift-enterprise') }}" + containerized: "{{ containerized | default('no') | bool }}" + openshift_release: "{{ openshift_release | default('3.3') }}" + oo_preflight_check_results: "{{ oo_preflight_check_results | default([]) }}" + +- hosts: OSEv3 + name: check content available on all hosts + gather_facts: no + ignore_errors: yes + tasks: + - when: + - not containerized + block: + + - name: determine if yum update will work + action: check_yum_update + register: r + + - set_fact: + oo_preflight_check_results: "{{ oo_preflight_check_results + [r|combine({'_task': 'check content available on all hosts'})] }}" + + - name: determine if expected version matches what is available + aos_version: + version: "{{ openshift_release }}" + when: + - deployment_type == "openshift-enterprise" + register: r + + - set_fact: + oo_preflight_check_results: "{{ oo_preflight_check_results + [r|combine({'_task': 'determine if expected version matches what is available'})] }}" + +- hosts: masters + name: determine if yum install of master pkgs will work + gather_facts: no + ignore_errors: yes + tasks: + - when: + - not containerized + block: + + - name: main packages for enterprise + when: + - deployment_type == "openshift-enterprise" + check_yum_update: + packages: + - atomic-openshift + - atomic-openshift-clients + - atomic-openshift-master + register: r + + - set_fact: + oo_preflight_check_results: "{{ oo_preflight_check_results + [r|combine({'_task': 'main packages for enterprise'})] }}" + + - name: main packages for origin + when: + - deployment_type == "origin" + check_yum_update: + packages: + - origin + - origin-clients + - origin-master + register: r + + - set_fact: + oo_preflight_check_results: "{{ oo_preflight_check_results + [r|combine({'_task': 'main packages for origin'})] }}" + + - name: other master packages + check_yum_update: + packages: + - etcd + - bash-completion + - cockpit-bridge + - cockpit-docker + - cockpit-kubernetes + - cockpit-shell + - cockpit-ws + - httpd-tools + register: r + + - set_fact: + oo_preflight_check_results: "{{ oo_preflight_check_results + [r|combine({'_task': 'other master packages'})] }}" + +- hosts: nodes + name: determine if yum install of node pkgs will work + gather_facts: no + ignore_errors: yes + tasks: + - when: + - not containerized + block: + + - name: main packages for enterprise + when: + - deployment_type == "openshift-enterprise" + check_yum_update: + packages: + - atomic-openshift + - atomic-openshift-node + - atomic-openshift-sdn-ovs + register: r + + - set_fact: + oo_preflight_check_results: "{{ oo_preflight_check_results + [r|combine({'_task': 'main packages for enterprise'})] }}" + + - name: main packages for origin + when: + - deployment_type == "origin" + check_yum_update: + packages: + - origin + - origin-node + - origin-sdn-ovs + register: r + + - set_fact: + oo_preflight_check_results: "{{ oo_preflight_check_results + [r|combine({'_task': 'main packages for origin'})] }}" + + - name: other node packages + check_yum_update: + packages: + - docker + - PyYAML + - firewalld + - iptables + - iptables-services + - nfs-utils + - ntp + - yum-utils + - dnsmasq + - libselinux-python + - ceph-common + - glusterfs-fuse + - iscsi-initiator-utils + - pyparted + - python-httplib2 + - openssl + - flannel + - bind + register: r + + - set_fact: + oo_preflight_check_results: "{{ oo_preflight_check_results + [r|combine({'_task': 'other node packages'})] }}" + +- hosts: OSEv3 + name: verify check results + gather_facts: no + tasks: + + - set_fact: + oo_preflight_check_failures: "{{ oo_preflight_check_results | select('failed', 'equalto', True) | list }}" + + - name: ensure all checks succeed + action: fail + when: oo_preflight_check_failures diff --git a/playbooks/adhoc/preflight/library b/playbooks/adhoc/preflight/library new file mode 120000 index 000000000..ba40d2f56 --- /dev/null +++ b/playbooks/adhoc/preflight/library @@ -0,0 +1 @@ +../../../library
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