deploy-gcs.yml

---
- name: Deploy GCS
  hosts: kube-master[0]
  become: true
  gather_facts: false
  vars:
    kubectl: /usr/local/bin/kubectl

  pre_tasks:
    - name: Create a temporary kube configs directory
      tempfile:
        state: directory
        prefix: gcs-configs
      register: tempdir

    - set_fact:
        cachable: true
        configs_dir: "{{ tempdir.path }}"

    - name: Copy GCS configs over
      synchronize:
        src: ./gcs-configs/
        dest: "{{ configs_dir }}"

  post_tasks:
    - name: Delete temporary configs directory
      file:
        path: "{{ configs_dir }}"
        state: absent

  tasks:
    - name: GCS | Namespace | Create GCS namespace
      kube:
        kubectl: "{{ kubectl }}"
        file: "{{ configs_dir }}/gcs-namespace.yml"

    - name: GCS | ETCD Operator | Deploy etcd-operator
      kube:
        kubectl: "{{ kubectl }}"
        file: "{{ configs_dir }}/gcs-etcd-operator.yml"

    - name: GCS | ETCD Operator | Wait for etcd-operator to be available
      command: "{{ kubectl }} -ngcs -ojsonpath='{.status.availableReplicas}' get deployment etcd-operator"
      register: result
      until: result.stdout|int == 1
      delay: 10
      retries: 50

    - name: GCS | ETCD Cluster | Deploy etcd-cluster
      kube:
        kubectl: "{{ kubectl }}"
        file: "{{ configs_dir }}/gcs-etcd-cluster.yml"
      register: result
      until: not result.failed
      delay: 5
      retries: 5

    - name: GCS | ETCD Cluster | Get etcd-client service
      command: "{{ kubectl }} -ngcs -ojson get service etcd-client"
      register: etcd_client_service
      until: etcd_client_service.rc == 0
      delay: 5
      retries: 5

    - name: GCS | ETCD Cluster | Set etcd_client_endpoint
      set_fact:
        etcd_client_endpoint: "http://{{ (etcd_client_service.stdout|from_json).spec.clusterIP }}:2379"
        cacheable: true

    - name: GCS | ETCD Cluster | Wait for etcd-cluster to become ready
      uri:
        url: "{{ etcd_client_endpoint }}/v2/members"
      register: result
      until: result.status is defined and (result.status == 200 and result.json.members|length == 3)
      delay: 10
      retries: 50

    - name: GCS | GD2 Cluster | Deploy glusterd2-cluster
      kube:
        kubectl: "{{ kubectl }}"
        file: "{{ configs_dir }}/gcs-gd2-cluster.yml"

    - name: GCS | GD2 Cluster | Get glusterd2-client service
      command: "{{ kubectl }} -ngcs -ojson get service glusterd2-client "
      register: gd2_client_service
      until: gd2_client_service.rc == 0
      delay: 5
      retries: 5

    - name: GCS | GD2 Cluster | Set gd2_client_endpoint
      set_fact:
        gd2_client_endpoint: "http://{{ (gd2_client_service.stdout|from_json).spec.clusterIP}}:24007"
        cacheable: true

    - name: GCS | GD2 Cluster | Wait for glusterd2-cluster to become ready
      uri:
        url: "{{ gd2_client_endpoint }}/v1/peers"
      register: result
      until: result.status is defined and (result.status == 200 and result.json|length == groups['kube-node']|length)
      delay: 10
      retries: 50

    - name: GCS | CSI Driver | Deploy csi driver
      kube:
        kubectl: "{{ kubectl }}"
        file: "{{ configs_dir }}/gcs-csi.yml"

    - name: GCS | CSI Driver | Wait for csi-provisioner to become available
      command: "{{ kubectl }} -ngcs -ojsonpath={.status.readyReplicas} get statefulset csi-provisioner-glusterfsplugin"
      register: result
      until: result.stdout|int == 1
      delay: 10
      retries: 50

    - name: GCS | CSI Driver | Wait for csi-attacher to become available
      command: "{{ kubectl }} -ngcs -ojsonpath={.status.readyReplicas} get statefulset csi-attacher-glusterfsplugin"
      register: result
      until: result.stdout|int == 1
      delay: 10
      retries: 50

    - name: GCS | CSI Driver | Wait for csi-nodeplugin to become available
      command: "{{ kubectl }} -ngcs -ojsonpath={.status.numberAvailable} get daemonset csi-nodeplugin-glusterfsplugin"
      register: result
      until: result.stdout|int == 3
      delay: 10
      retries: 50