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Diffstat (limited to 'roles')
10 files changed, 269 insertions, 0 deletions
diff --git a/roles/openshift_cluster_metrics/README.md b/roles/openshift_cluster_metrics/README.md new file mode 100644 index 000000000..9fdfab8e3 --- /dev/null +++ b/roles/openshift_cluster_metrics/README.md @@ -0,0 +1,36 @@ +#openshift_cluster_metrics + +This role configures Cluster wide metrics. It does setting up three services: +* Metrics are stored in InfluxDB for querying. +* Heapster reads all nodes and pods from the master, then connects to eachs node's kubelet to retrieve pod metrics. +* Grafan allows users to create dashboards of metrics from InfluxDB + +## Requirements + +Running OpenShift cluster + +## Role Variables + +``` +# Enable cluster metrics +use_cluster_metrics=true +``` + +## Dependencies + +None + +## Example Playbook + +TODO + +## Security Note +Opening up the read-only port exposes information about the running pods (such as namespace, pod name, labels, etc.) to unauthenticated clients. The requirement to open up this read-only port will be fixed in future versions. + +##License + +Apache License, Version 2.0 + +## Author Information + +Diego Castro (diego.castro@getupcloud.com) diff --git a/roles/openshift_cluster_metrics/files/cluster-metrics/grafana.yaml b/roles/openshift_cluster_metrics/files/cluster-metrics/grafana.yaml new file mode 100644 index 000000000..bff422efc --- /dev/null +++ b/roles/openshift_cluster_metrics/files/cluster-metrics/grafana.yaml @@ -0,0 +1,53 @@ +apiVersion: "v1" +kind: "List" +items: + - + apiVersion: "v1" + kind: "Service" + metadata: + labels: + provider: "fabric8" + component: "grafana" + name: "grafana" + spec: + ports: + - + port: 80 + targetPort: "http" + selector: + provider: "fabric8" + component: "grafana" + - + apiVersion: "v1" + kind: "ReplicationController" + metadata: + labels: + provider: "fabric8" + component: "grafana" + name: "grafana" + spec: + replicas: 1 + selector: + provider: "fabric8" + component: "grafana" + template: + metadata: + labels: + provider: "fabric8" + component: "grafana" + spec: + containers: + - + env: + - + name: "INFLUXDB_SERVICE_NAME" + value: "INFLUXDB_MONITORING" + - + name: "GRAFANA_DEFAULT_DASHBOARD" + value: "/dashboard/file/kubernetes.json" + image: "fabric8/grafana:1.9.1_2" + name: "grafana" + ports: + - + containerPort: 3000 + name: "http"
\ No newline at end of file diff --git a/roles/openshift_cluster_metrics/files/cluster-metrics/heapster-serviceaccount.yaml b/roles/openshift_cluster_metrics/files/cluster-metrics/heapster-serviceaccount.yaml new file mode 100644 index 000000000..1de2ad699 --- /dev/null +++ b/roles/openshift_cluster_metrics/files/cluster-metrics/heapster-serviceaccount.yaml @@ -0,0 +1,4 @@ +apiVersion: v1 +kind: ServiceAccount +metadata: + name: heapster
\ No newline at end of file diff --git a/roles/openshift_cluster_metrics/files/cluster-metrics/heapster.yaml b/roles/openshift_cluster_metrics/files/cluster-metrics/heapster.yaml new file mode 100644 index 000000000..83e314074 --- /dev/null +++ b/roles/openshift_cluster_metrics/files/cluster-metrics/heapster.yaml @@ -0,0 +1,30 @@ +apiVersion: "v1" +kind: "List" +items: + - + apiVersion: "v1" + kind: "ReplicationController" + metadata: + labels: + provider: "fabric8" + component: "heapster" + name: "heapster" + spec: + replicas: 1 + selector: + provider: "fabric8" + component: "heapster" + template: + metadata: + labels: + provider: "fabric8" + component: "heapster" + spec: + containers: + - + args: + - "-source=kubernetes:https://kubernetes.default.svc.cluster.local?auth=&insecure=true&useServiceAccount=true" + - "-sink=influxdb:http://influxdb-monitoring.default.svc.cluster.local:8086" + image: "kubernetes/heapster:V0.14.2" + name: "heapster" + serviceAccount: "heapster"
\ No newline at end of file diff --git a/roles/openshift_cluster_metrics/files/cluster-metrics/influxdb.yaml b/roles/openshift_cluster_metrics/files/cluster-metrics/influxdb.yaml new file mode 100644 index 000000000..6f67c3d7c --- /dev/null +++ b/roles/openshift_cluster_metrics/files/cluster-metrics/influxdb.yaml @@ -0,0 +1,67 @@ +apiVersion: "v1" +kind: "List" +items: + - + apiVersion: "v1" + kind: "Service" + metadata: + labels: + provider: "fabric8" + component: "influxdb-monitoring" + name: "influxdb-monitoring" + spec: + ports: + - + port: 8086 + targetPort: "http" + selector: + provider: "fabric8" + component: "influxdb-monitoring" + - + apiVersion: "v1" + kind: "ReplicationController" + metadata: + labels: + provider: "fabric8" + component: "influxdb-monitoring" + name: "influxdb-monitoring" + spec: + replicas: 1 + selector: + provider: "fabric8" + component: "influxdb-monitoring" + template: + metadata: + labels: + provider: "fabric8" + component: "influxdb-monitoring" + spec: + containers: + - + env: + - + name: "PRE_CREATE_DB" + value: "k8s;grafana" + image: "fabric8/influxdb:0.8.8" + name: "influxdb" + ports: + - + containerPort: 8090 + name: "raft" + - + containerPort: 8099 + name: "protobuf" + - + containerPort: 8083 + name: "admin" + - + containerPort: 8086 + name: "http" + volumeMounts: + - + mountPath: "/data" + name: "influxdb-data" + volumes: + - + emptyDir: + name: "influxdb-data"
\ No newline at end of file diff --git a/roles/openshift_cluster_metrics/tasks/main.yml b/roles/openshift_cluster_metrics/tasks/main.yml new file mode 100644 index 000000000..3938aba4c --- /dev/null +++ b/roles/openshift_cluster_metrics/tasks/main.yml @@ -0,0 +1,50 @@ +--- + +- name: Install cluster metrics templates + copy: + src: cluster-metrics + dest: /etc/openshift/ + +- name: Create InfluxDB Services + command: > + {{ openshift.common.client_binary }} create -f + /etc/openshift/cluster-metrics/influxdb.yaml + register: oex_influxdb_services + failed_when: "'already exists' not in oex_influxdb_services.stderr and oex_influxdb_services.rc != 0" + changed_when: false + +- name: Create Heapster Service Account + command: > + {{ openshift.common.client_binary }} create -f + /etc/openshift/cluster-metrics/heapster-serviceaccount.yaml + register: oex_heapster_serviceaccount + failed_when: "'already exists' not in oex_heapster_serviceaccount.stderr and oex_heapster_serviceaccount.rc != 0" + changed_when: false + +- name: Add cluster-reader role to Heapster + command: > + {{ openshift.common.admin_binary }} policy + add-cluster-role-to-user + cluster-reader + system:serviceaccount:default:heapster + register: oex_cluster_header_role + register: oex_cluster_header_role + failed_when: "'already exists' not in oex_cluster_header_role.stderr and oex_cluster_header_role.rc != 0" + changed_when: false + +- name: Create Heapster Services + command: > + {{ openshift.common.client_binary }} create -f + /etc/openshift/cluster-metrics/heapster.yaml + register: oex_heapster_services + failed_when: "'already exists' not in oex_heapster_services.stderr and oex_heapster_services.rc != 0" + changed_when: false + +- name: Create Grafana Services + command: > + {{ openshift.common.client_binary }} create -f + /etc/openshift/cluster-metrics/grafana.yaml + register: oex_grafana_services + failed_when: "'already exists' not in oex_grafana_services.stderr and oex_grafana_services.rc != 0" + changed_when: false + diff --git a/roles/openshift_facts/library/openshift_facts.py b/roles/openshift_facts/library/openshift_facts.py index 4e0989c5f..c1c4e1b5c 100755 --- a/roles/openshift_facts/library/openshift_facts.py +++ b/roles/openshift_facts/library/openshift_facts.py @@ -323,6 +323,24 @@ def set_fluentd_facts_if_unset(facts): facts['common']['use_fluentd'] = use_fluentd return facts +def set_cluster_metrics_facts_if_unset(facts): + """ Set cluster metrics facts if not already present in facts dict + dict: the facts dict updated with the generated cluster metrics facts if + missing + Args: + facts (dict): existing facts + Returns: + dict: the facts dict updated with the generated cluster metrics + facts if they were not already present + + """ + if 'common' in facts: + deployment_type = facts['common']['deployment_type'] + if 'use_cluster_metrics' not in facts['common']: + use_cluster_metrics = True if deployment_type == 'origin' else False + facts['common']['use_cluster_metrics'] = use_cluster_metrics + return facts + def set_identity_providers_if_unset(facts): """ Set identity_providers fact if not already present in facts dict @@ -700,6 +718,7 @@ class OpenShiftFacts(object): facts['current_config'] = get_current_config(facts) facts = set_url_facts_if_unset(facts) facts = set_fluentd_facts_if_unset(facts) + facts = set_cluster_metrics_facts_if_unset(facts) facts = set_identity_providers_if_unset(facts) facts = set_registry_url_if_unset(facts) facts = set_sdn_facts_if_unset(facts) diff --git a/roles/openshift_node/defaults/main.yml b/roles/openshift_node/defaults/main.yml index be51195f2..1dbcc4301 100644 --- a/roles/openshift_node/defaults/main.yml +++ b/roles/openshift_node/defaults/main.yml @@ -6,3 +6,7 @@ os_firewall_allow: port: 80/tcp - service: https port: 443/tcp +- service: Openshift kubelet ReadOnlyPort + port: 10255/tcp +- service: Openshift kubelet ReadOnlyPort udp + port: 10255/udp diff --git a/roles/openshift_node/templates/node.yaml.v1.j2 b/roles/openshift_node/templates/node.yaml.v1.j2 index 7b1c0f808..e176e7511 100644 --- a/roles/openshift_node/templates/node.yaml.v1.j2 +++ b/roles/openshift_node/templates/node.yaml.v1.j2 @@ -21,3 +21,4 @@ servingInfo: clientCA: ca.crt keyFile: server.key volumeDirectory: {{ openshift_data_dir }}/openshift.local.volumes +{% include 'partials/kubeletArguments.j2' %}
\ No newline at end of file diff --git a/roles/openshift_node/templates/partials/kubeletArguments.j2 b/roles/openshift_node/templates/partials/kubeletArguments.j2 new file mode 100644 index 000000000..6c3bd04c5 --- /dev/null +++ b/roles/openshift_node/templates/partials/kubeletArguments.j2 @@ -0,0 +1,5 @@ +{% if openshift.common.use_cluster_metrics | bool %} +kubeletArguments: + "read-only-port": + - "10255" +{% endif %}
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