---
# Deploys RHBK in a namespace with the Keycloak operator CSV.
- name: Check if there is a namespace.
  kubernetes.core.k8s_info:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: v1
    kind: namespace
    name: "{{ rhbk.namespace | default('keycloak') }}"
  register: prereq_ns

- name: Fail if not so.
  ansible.builtin.assert:
    that:
      - prereq_ns.resources is defined
      - prereq_ns.resources | length == 1
    success_msg: "OK, namespace found."
    fail_msg: "FATAL: namespace to deploy ({{ rhbk.namespace | default('keycloak') }}) not found. Ensure there is an operator already present."

- name: Check if there is a CSV in the namespace.
  kubernetes.core.k8s_info:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: operators.coreos.com/v1alpha1
    kind: clusterserviceversion
    namespace: "{{ rhbk.namespace | default('keycloak') }}"
    label_selectors:
      - operators.coreos.com/rhbk-operator.keycloak=
  register: prereq_csv

- name: Fail if not so.
  ansible.builtin.assert:
    that:
      - prereq_csv.resources is defined
      - prereq_csv.resources | length > 0
    success_msg: "OK, operator CSV found."
    fail_msg: "FATAL: Operator is not deployed in the namespace: {{ rhbk.namespace | default('keycloak') }}. Ensure there is an operator already present."

- name: Tech hack. Prevent anything from blowing up because rhbk is defined somewhere, but not its structured contents.
  ansible.builtin.set_fact:
    rhbk: "{{ rhbk | default({}) | combine({ 'db': {} }) }}"
  when:
    - rhbk.db is not defined

- name: Ensure there is a secret containing DB credentials in the project.
  kubernetes.core.k8s:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: v1
    kind: secret
    namespace: "{{ rhbk.namespace | default('keycloak') }}"
    name: "{{ rhbk.name | default('sso') }}-db-auth"
    resource_definition:
      data:
        username: "{{ rhbk.db.username | default('rhbk') | b64encode }}"
        password: "{{ rhbk.db.password | default('secret') | b64encode }}"

# TODO: ensure that there is no STS to begin with, or if there is, verify that
#       only the allowed fields would change, if anything. Otherwise:
#
#         Forbidden: updates to statefulset spec for fields other than
#         'replicas', 'ordinals', 'template', 'updateStrategy',
#         'persistentVolumeClaimRetentionPolicy' and 'minReadySeconds' are
#         forbidden
#
- name: Ensure there is a database sts in the project
  kubernetes.core.k8s:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: apps/v1
    kind: statefulset
    namespace: "{{ rhbk.namespace | default('keycloak') }}"
    name: "{{ rhbk.name | default('sso') }}-db"
    resource_definition:
      spec:
        # TODO: implement rhbk.db.replicas at some point?
        replicas: 1
        serviceName: "{{ rhbk.name | default('sso') }}-db"
        selector:
          matchLabels:
            app: "{{ rhbk.name | default('sso') }}-db"
        template:
          metadata:
            labels:
              app: "{{ rhbk.name | default('sso') }}-db"
          spec:
            containers:
              - name: "{{ rhbk.name | default('sso') }}-db"
                image: "{{ rhbk.db.image | default('registry.redhat.io/rhel9/postgresql-15:latest') }}"
                volumeMounts:
                  - mountPath: /var/lib/pgsql/data
                    name: "{{ rhbk.name | default('sso') }}-db-data"
                env:
                  - name: POSTGRESQL_USER
                    valueFrom:
                      secretKeyRef:
                        name: "{{ rhbk.name | default('sso') }}-db-auth"
                        key: username
                  - name: POSTGRESQL_PASSWORD
                    valueFrom:
                      secretKeyRef:
                        name: "{{ rhbk.name | default('sso') }}-db-auth"
                        key: password
                  - name: POSTGRESQL_DATABASE
                    value: "{{ rhbk.db.name | default('rhbk') }}"
        volumeClaimTemplates:
          - metadata:
              name: "{{ rhbk.name | default('sso') }}-db-data"
            spec:
              accessModes: "{{ rhbk.db.claim_modes | default(['ReadWriteOnce']) }}"
              storageClassName: "{{ rhbk.db.storage_class | default(omit) }}"
              resources:
                requests:
                  storage: "{{ rhbk.db.size | default('1Gi') }}"

- name: Ensure there is a service for the database as well
  kubernetes.core.k8s:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: v1
    kind: service
    namespace: "{{ rhbk.namespace | default('keycloak') }}"
    name: "{{ rhbk.name | default('sso') }}-db"
    resource_definition:
      spec:
        selector:
          app: "{{ rhbk.name | default('sso') }}-db"
        type: LoadBalancer
        ports:
          - port: 5432
            targetPort: 5432
            protocol: TCP

- name: Ensure there is a secret containing Keycloak bootstrap credentials
  kubernetes.core.k8s:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: v1
    kind: secret
    namespace: "{{ rhbk.namespace | default('keycloak') }}"
    name: "{{ rhbk.name | default('sso') }}-auth"
    resource_definition:
      data:
        username: "{{ rhbk.admin.username | default('rhbk') | b64encode }}"
        password: "{{ rhbk.admin.password | default('secret') | b64encode }}"

- name: If there is no FQDN, check what the default domain is.
  kubernetes.core.k8s_info:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: operator.openshift.io/v1
    kind: ingresscontroller
    namespace: openshift-ingress-operator
    name: default
  register: default_ingress
  when: rhbk.fqdn is not defined

- name: Set a fact that reflects either the FQDN as set, or a composition of vars and default ingress info.
  ansible.builtin.set_fact:
    rhbk_fqdn: "{{ rhbk.fqdn | default((rhbk.name | default('sso')) + '-' + (rhbk.namespace | default('keycloak')) + '.' + default_ingress.resources[0].status.domain) }}"

- name: Announce what hostname would be used.
  ansible.builtin.debug:
    msg: Using "https://{{ rhbk_fqdn }}" as the hostname.

# TODO: remember if there were changes, and force delete any non-ready pod?
- name: Lastly, make sure there is a Keycloak
  kubernetes.core.k8s:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: k8s.keycloak.org/v2alpha1
    kind: keycloak
    namespace: "{{ rhbk.namespace | default('keycloak') }}"
    name: "{{ rhbk.name | default('sso') }}"
    resource_definition:
      spec:
        instances: "{{ rhbk.replicas | default(1) }}"
        db:
          vendor: postgres
          host: "{{ rhbk.name | default('sso') }}-db"
          database: "{{ rhbk.db.name | default('rhbk') }}"
          usernameSecret:
            name: "{{ rhbk.name | default('sso') }}-db-auth"
            key: username
          passwordSecret:
            name: "{{ rhbk.name | default('sso') }}-db-auth"
            key: password
        hostname:
          hostname: "https://{{ rhbk_fqdn }}"
          strict: false
          backchannelDynamic: true
        http:
          httpEnabled: true
          httpPort: 8080
          httpsPort: 8443
          tlsSecret: "{{ rhbk.name | default('sso') }}-tls"
        bootstrapAdmin:
          user:
            secret: "{{ rhbk.name | default('sso') }}-auth"
        ingress:
          enabled: false

- name: Wait for the service to show up.
  kubernetes.core.k8s_info:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: v1
    kind: service
    namespace: "{{ rhbk.namespace | default('keycloak') }}"
    name: "{{ rhbk.name | default('sso') }}-service"
  register: rhbk_svc
  until:
    - rhbk_svc.resources is defined
    - (rhbk_svc.resources | length) > 0
  retries: 24
  delay: 5

- name: Ensure the service is correctly annotated.
  kubernetes.core.k8s:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: v1
    kind: service
    namespace: "{{ rhbk.namespace | default('keycloak') }}"
    name: "{{ rhbk.name | default('sso') }}-service"
    state: patched
    resource_definition:
      metadata:
        annotations:
          service.beta.openshift.io/serving-cert-secret-name: "{{ rhbk.name | default('sso') }}-tls"

- name: Make sure there is a re-encrypt route.
  kubernetes.core.k8s:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: route.openshift.io/v1
    kind: route
    namespace: "{{ rhbk.namespace | default('keycloak') }}"
    name: "{{ rhbk.name | default('sso') }}"
    resource_definition:
      spec:
        to:
          kind: Service
          name: "{{ rhbk.name | default('sso') }}-service"
        port:
          targetPort: 8443
        tls:
          termination: reencrypt
          insecureEdgeTerminationPolicy: Redirect

- name: Wait for the Keycloak resource to report ready.
  kubernetes.core.k8s_info:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: k8s.keycloak.org/v2alpha1
    kind: keycloak
    namespace: "{{ rhbk.namespace | default('keycloak') }}"
    name: "{{ rhbk.name | default('sso') }}"
  register: rhbk_ready
  until:
    - rhbk_ready.resources is defined
    - rhbk_ready.resources | length == 1
    - rhbk_ready.resources[0].status is defined
    - (rhbk_ready.resources[0].status | community.general.json_query('conditions[?type==`Ready`].status'))[0]
  retries: 24
  delay: 5

- name: Wait for the Keycloak pod to become ready.
  ansible.builtin.uri:
    return_content: yes
    validate_certs: no
    url: "https://{{ rhbk_fqdn }}/realms/master"
  register: rhbk_is_ready
  until: rhbk_is_ready.status == 200
  retries: 24
  delay: 5

- name: Add another 10 seconds because Keycloak flaps.
  ansible.builtin.pause:
    prompt: Waiting 10 seconds for Keycloak to settle.
    seconds: 10

- name: Get a fresh bearer token.
  ansible.builtin.include_tasks:
    file: tasks/token.yml

- name: Get a list of existing realms.
  ansible.builtin.uri:
    method: GET
    return_content: true
    validate_certs: false
    url: "https://{{ rhbk_fqdn }}/admin/realms"
    headers:
      Authorization: Bearer {{ admin_token }}
      Accept: application/json
  register: rhbk_realms

- name: Store the list of realm names/ids as a fact
  ansible.builtin.set_fact:
    realms: "{{ rhbk_realms.json | items2dict(key_name='realm', value_name='id') }}"

- name: Import the realm if not present yet
  block:

    - name: Check whether there is already a realm import CR
      kubernetes.core.k8s_info:
        kubeconfig: tmp/kubeconfig-ocp4
        validate_certs: no
        api_version: k8s.keycloak.org/v2alpha1
        kind: keycloakrealmimport
        namespace: "{{ rhbk.namespace | default('keycloak') }}"
      register: realm_imports

    - name: Remove a previous realm import if it happens to be there.
      kubernetes.core.k8s:
        kubeconfig: tmp/kubeconfig-ocp4
        validate_certs: no
        api_version: k8s.keycloak.org/v2alpha1
        kind: keycloakrealmimport
        namespace: "{{ rhbk.namespace | default('keycloak') }}"
        name: "{{ rhbk.name | default('sso') }}-{{ rhbk.realm | default('sample-realm') }}-import"
        state: absent
      when:
        - realm_imports.resources is defined
        - (realm_imports.resources | length) > 0
        - (realm_imports | community.general.json_query('resources[*].metadata.name')) is contains((rhbk.name | default('sso')) + '-' + (rhbk.realm | default('sample-realm')) + '-import')

    # TODO: finish templating this one, introduce more settings as needed
    - name: Apply a template realm import.
      kubernetes.core.k8s:
        kubeconfig: tmp/kubeconfig-ocp4
        validate_certs: no
        api_version: k8s.keycloak.org/v2alpha1
        kind: keycloakrealmimport
        namespace: "{{ rhbk.namespace | default('keycloak') }}"
        name: "{{ rhbk.name | default('sso') }}-{{ rhbk.realm | default('sample-realm') }}-import"
        template: templates/realm-import-template.yaml.j2
      register: created_import

    - name: Wait for the import to rollout.
      kubernetes.core.k8s_info:
        kubeconfig: tmp/kubeconfig-ocp4
        validate_certs: no
        api_version: v1
        kind: pod
        namespace: "{{ rhbk.namespace | default('keycloak') }}"
        label_selectors:
          - app=keycloak-realm-import
      register: import_running
      until:
        - import_running.resources is defined
        - import_running.resources | length > 0
        - import_running.resources[0].status.phase == "Succeeded"
      retries: 12
      delay: 5
      when: created_import.changed

    - name: Wait for the Keycloak pod to become ready.
      ansible.builtin.uri:
        return_content: yes
        validate_certs: no
        url: "https://{{ rhbk_fqdn }}/realms/{{ rhbk.realm | default('sample-realm') }}"
      register: rhbk_is_back
      until: rhbk_is_back.status == 200
      retries: 24
      delay: 5
      when: created_import.changed

    - name: Add another 10 seconds because Keycloak flaps.
      ansible.builtin.pause:
        prompt: Waiting 10 seconds for Keycloak to settle.
        seconds: 10

  when:
    - realms[rhbk.realm | default('sample-realm')] is not defined

- name: Get a fresh bearer token.
  ansible.builtin.include_tasks:
    file: tasks/token.yml

- name: Get a list of existing groups in the realm.
  ansible.builtin.uri:
    method: GET
    return_content: true
    validate_certs: false
    url: "https://{{ rhbk_fqdn }}/admin/realms/{{ rhbk.realm | default('sample-realm') }}/groups"
    headers:
      Authorization: Bearer {{ admin_token }}
      Accept: application/json
  register: rhbk_realm_groups

- name: Show what groups were found at verbosity 2+.
  ansible.builtin.debug:
    var: rhbk_realm_groups
    verbosity: 2

- name: Create the groups if necessary.
  ansible.builtin.uri:
    method: POST
    return_content: true
    validate_certs: false
    url: "https://{{ rhbk_fqdn }}/admin/realms/{{ rhbk.realm | default('sample-realm') }}/groups"
    headers:
      Authorization: Bearer {{ admin_token }}
      Accept: application/json
      Content-Type: application/json
    body_format: json
    body: |
      {
        "name": "{{ item }}"
      }
    status_code:
      - 200
      - 201
  register: created_groups
  loop: "{{ rhbk.groups }}"
  when:
    - (rhbk_realm_groups.json | items2dict(key_name='name', value_name='id')).keys() is not contains(item)

- name: Show what groups were created at verbosity 2+.
  ansible.builtin.debug:
    var: created_groups
    verbosity: 2

- name: Get a fresh bearer token.
  ansible.builtin.include_tasks:
    file: tasks/token.yml

- name: Get a list of existing users in the realm.
  ansible.builtin.uri:
    method: GET
    return_content: true
    validate_certs: false
    url: "https://{{ rhbk_fqdn }}/admin/realms/{{ rhbk.realm | default('sample-realm') }}/users"
    headers:
      Authorization: Bearer {{ admin_token }}
      Accept: application/json
  register: rhbk_realm_users

- name: Show what users were found at verbosity 2+.
  ansible.builtin.debug:
    var: rhbk_realm_users
    verbosity: 2

- name: Create the users if necessary.
  ansible.builtin.uri:
    method: POST
    return_content: true
    validate_certs: false
    url: "https://{{ rhbk_fqdn }}/admin/realms/{{ rhbk.realm | default('sample-realm') }}/users"
    headers:
      Authorization: Bearer {{ admin_token }}
      Accept: application/json
      Content-Type: application/json
    body_format: json
    body: |
      {
        "username": "{{ item.username }}",
        "email": "{{ item.email | default(item.username + '@example.com') }}",
        "firstName": "{{ item.firstname | default('') }}",
        "lastName": "{{ item.lastname | default('') }}",
        "credentials": [
          {
            "type": "password",
            "temporary": false,
            "value": "{{ item.password | default('secret') }}"
          }
        ],
        "enabled": true,
        "emailVerified": true,
        {% if item.groups is defined and (item.groups | length) > 0 %}
        "groups": [ "{{ item.groups | join('", "') }}" ]
        {% endif %}
      }
    status_code:
      - 200
      - 201
  register: created_users
  loop: "{{ rhbk.users }}"
  when:
    - (rhbk_realm_users.json | items2dict(key_name='username', value_name='id')).keys() is not contains(item.username)

- name: Show what users were created at verbosity 2+.
  ansible.builtin.debug:
    var: created_users
    verbosity: 2
...