roles/openstack_exporter/tasks/main.yml

# Copyright (c) 2022 VEXXHOST, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

- name: Deploy service
  kubernetes.core.k8s:
    state: present
    definition:
      - apiVersion: apps/v1
        kind: Deployment
        metadata:
          name: openstack-exporter
          namespace: openstack
          labels:
            application: openstack-exporter
        spec:
          replicas: 1
          selector:
            matchLabels:
              application: openstack-exporter
          template:
            metadata:
              labels:
                application: openstack-exporter
            spec:
              nodeSelector:
                openstack-control-plane: enabled
              initContainers:
                - name: build-config
                  image: "{{ atmosphere_images['bootstrap'] | vexxhost.kubernetes.docker_image('ref') }}"
                  command: ["bash", "-ec"]
                  args:
                    - |
                      cat <<EOF > /etc/openstack/clouds.yaml
                      ---
                      clouds:
                        default:
                          auth:
                            auth_url: "$(OS_AUTH_URL)"
                            project_domain_name: "$(OS_PROJECT_DOMAIN_NAME)"
                            project_name: "$(OS_PROJECT_NAME)"
                            user_domain_name: "$(OS_USER_DOMAIN_NAME)"
                            username: "$(OS_USERNAME)"
                            password: "$(OS_PASSWORD)"
                          region_name: "$(OS_REGION_NAME)"
                          interface: "$(OS_INTERFACE)"
                          identity_api_version: 3
                          identity_interface: "$(OS_INTERFACE)"
                      EOF
                  envFrom:
                    - secretRef:
                        name: keystone-keystone-admin
                  volumeMounts:
                    - name: openstack-config
                      mountPath: /etc/openstack
              containers:
                - name: openstack-exporter
                  image: "{{ atmosphere_images['prometheus_openstack_exporter'] | vexxhost.kubernetes.docker_image('ref') }}"
                  args:
                    - --endpoint-type
                    - internal
                    - default
                    - --collect-metric-time
                    - -d neutron-l3_agent_of_router
                    - -d loadbalancer-loadbalancer_status
                  ports:
                    - name: metrics
                      containerPort: 9180
                  env:
                    - name: OS_COMPUTE_API_VERSION
                      value: "2.87"
                  volumeMounts:
                    - name: openstack-config
                      mountPath: /etc/openstack
                  readinessProbe:
                    failureThreshold: 3
                    httpGet:
                      path: /
                      port: 9180
                      scheme: HTTP
                  livenessProbe:
                    failureThreshold: 3
                    httpGet:
                      path: /
                      port: 9180
                      scheme: HTTP
                    periodSeconds: 10
                    successThreshold: 1
                    timeoutSeconds: 1
              volumes:
                - name: openstack-config
                  emptyDir: {}

      - apiVersion: v1
        kind: Service
        metadata:
          name: openstack-exporter
          namespace: openstack
          labels:
            application: openstack-exporter
        spec:
          clusterIP: None
          ports:
            - name: metrics
              port: 9180
              targetPort: metrics
          selector:
            application: openstack-exporter

- name: Fetch Neutron DB secret
  run_once: true
  no_log: true
  kubernetes.core.k8s_info:
    kind: Secret
    namespace: openstack
    name: neutron-db-user
  register: _neutron_db_user

- name: Fetch Nova DB secret
  run_once: true
  no_log: true
  kubernetes.core.k8s_info:
    kind: Secret
    namespace: openstack
    name: nova-db-user
  register: _nova_db_user

- name: Fetch Octavia DB secret
  run_once: true
  no_log: true
  kubernetes.core.k8s_info:
    kind: Secret
    namespace: openstack
    name: octavia-db-user
  register: _octavia_db_user

- name: Create "openstack-database-exporter-dsn" secret
  run_once: true
  no_log: true
  kubernetes.core.k8s:
    state: present
    definition:
      apiVersion: v1
      kind: Secret
      type: Opaque
      metadata:
        name: openstack-database-exporter-dsn
        namespace: openstack
        labels:
          application: openstack-database-exporter
      stringData:
        NEUTRON_DSN: "{{ _neutron_db_user.resources.0.data.DB_CONNECTION | b64decode |  regex_replace('^.*//', '') | regex_replace('@(.*)/', '@tcp(\\1)/') }}"
        NOVA_DSN: "{{ _nova_db_user.resources.0.data.DB_CONNECTION | b64decode |  regex_replace('^.*//', '') | regex_replace('@(.*)/', '@tcp(\\1)/') }}"
        OCTAVIA_DSN: "{{ _octavia_db_user.resources.0.data.DB_CONNECTION | b64decode |  regex_replace('^.*//', '') | regex_replace('@(.*)/', '@tcp(\\1)/') }}"

- name: Deploy service
  run_once: true
  kubernetes.core.k8s:
    state: present
    definition:
      - apiVersion: apps/v1
        kind: Deployment
        metadata:
          name: openstack-database-exporter
          namespace: openstack
          labels:
            application: openstack-database-exporter
        spec:
          replicas: 1
          selector:
            matchLabels:
              application: openstack-database-exporter
          template:
            metadata:
              labels:
                application: openstack-database-exporter
            spec:
              nodeSelector:
                openstack-control-plane: enabled
              containers:
                - name: openstack-database-exporter
                  image: "{{ atmosphere_images['prometheus_openstack_database_exporter'] | vexxhost.kubernetes.docker_image('ref') }}"
                  envFrom:
                    - secretRef:
                        name: openstack-database-exporter-dsn
                  ports:
                    - name: metrics
                      containerPort: 9180
                  readinessProbe:
                    failureThreshold: 3
                    httpGet:
                      path: /
                      port: 9180
                      scheme: HTTP
                  livenessProbe:
                    failureThreshold: 3
                    httpGet:
                      path: /
                      port: 9180
                      scheme: HTTP
                    periodSeconds: 10
                    successThreshold: 1
                    timeoutSeconds: 1