From ea333c4052ceb3e7a5c03cc83004890cffe9c972 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicolas=20Mass=C3=A9?= <nicolas.masse@itix.fr>
Date: Mon, 29 May 2017 16:51:22 +0200
Subject: [PATCH] 3scale rollout playbook

---
 roles/3scale/tasks/main.yml     | 126 +++++++++++++++++++++++++++++++-
 roles/3scale/tasks/status.yml   |  22 ++++++
 roles/3scale/tasks/wait_for.yml |   9 +++
 roles/3scale/vars/main.yml      |   2 +
 4 files changed, 158 insertions(+), 1 deletion(-)
 create mode 100644 roles/3scale/tasks/status.yml
 create mode 100644 roles/3scale/tasks/wait_for.yml

diff --git a/roles/3scale/tasks/main.yml b/roles/3scale/tasks/main.yml
index b2a50ad..ca7811d 100644
--- a/roles/3scale/tasks/main.yml
+++ b/roles/3scale/tasks/main.yml
@@ -23,15 +23,139 @@
   - name: Process the OpenShift Template and create the OpenShift objects for the 3scale API Management Platform
     shell: oc process -f "{{ threescale_options.template }}" -p "TENANT_NAME={{ threescale_options.tenant_name }}" -p "WILDCARD_DOMAIN={{ threescale_options.wildcard_domain }}" | oc create -f - -n "{{ threescale_options.project }}"
 
-    # TODO
+  - include: status.yml
+    tags: status
+
+  - name: Deploy the storage tier (MySQL, Redis and Memcache) without any replicas
+    command: oc rollout latest "{{ item }}" -n "{{ threescale_options.project }}"
+    with_items:
+      - backend-redis
+      - system-memcache
+      - system-mysql
+      - system-redis
+    when: item not in deployment_configs
+    tags: rollout
+
+  - name: Scale the storage tier (MySQL, Redis and Memcache)
+    command: oc scale dc "{{ item }}" --replicas=1 -n "{{ threescale_options.project }}"
+    with_items:
+      - backend-redis
+      - system-memcache
+      - system-mysql
+      - system-redis
+    when: item not in replication_controllers
+    tags: rollout
+
+  - include: wait_for.yml
+    static: no
+    vars:
+      pod_to_wait:
+        - backend-redis
+        - system-memcache
+        - system-mysql
+        - system-redis
+    tags: status
+
+  - name: Deploy the backend-listener without any replicas
+    command: oc rollout latest "{{ item }}" -n "{{ threescale_options.project }}"
+    with_items:
+      - backend-listener
+    when: item not in deployment_configs
+    tags: rollout
+
+  - name: Scale backend-listener
+    command: oc scale dc "{{ item }}" --replicas=1 -n "{{ threescale_options.project }}"
+    with_items:
+      - backend-listener
+    when: item not in replication_controllers
+    tags: rollout
+
+  - include: wait_for.yml
+    static: no
+    vars:
+      pod_to_wait:
+        - backend-listener
+    tags: status
+
+  - name: Deploy everything else without any replicas
+    command: oc rollout latest "{{ item }}" -n "{{ threescale_options.project }}"
+    with_items:
+      - backend-listener
+      - backend-worker
+      - system-app
+      - system-resque
+      - system-sidekiq
+      - backend-cron
+      - system-sphinx
+      - apicast-staging
+      - apicast-production
+    when: item not in deployment_configs
+    tags: rollout
+
+  - name: Scale system-app, system-resque and system-sidekiq
+    command: oc scale dc "{{ item }}" --replicas=1 -n "{{ threescale_options.project }}"
+    with_items:
+      - system-app
+      - system-resque
+      - system-sidekiq
+    when: item not in replication_controllers
+    tags: rollout
+
+  - include: wait_for.yml
+    static: no
+    vars:
+      pod_to_wait:
+        - system-app
+        - system-resque
+        - system-sidekiq
+    tags: status
+
+  - name: Scale backend-cron, backend-worker and system-sphinx
+    command: oc scale dc "{{ item }}" --replicas=1 -n "{{ threescale_options.project }}"
+    with_items:
+      - backend-worker
+      - backend-cron
+      - system-sphinx
+    when: item not in replication_controllers
+    tags: rollout
+
+  - include: wait_for.yml
+    static: no
+    vars:
+      pod_to_wait:
+        - backend-worker
+        - backend-cron
+        - system-sphinx
+    tags: status
+
+  - name: Deploy apicast-staging, apicast-production
+    command: oc scale dc "{{ item }}" --replicas=1 -n "{{ threescale_options.project }}"
+    with_items:
+      - apicast-staging
+      #- apicast-production
+    when: item not in replication_controllers
+    tags: rollout
+
+  - include: wait_for.yml
+    static: no
+    vars:
+      pod_to_wait:
+        - apicast-staging
+        #- apicast-production
+    tags: status
 
   - name: Get Admin Username
     command: oc get dc system-app -n "{{ threescale_options.project }}" -o 'jsonpath={.spec.template.spec.containers[0].env[?(@.name=="USER_LOGIN")].value}'
     register: username
+    changed_when: false
+    tags: status
 
   - name: Get Admin Password
     command: oc get dc system-app -n "{{ threescale_options.project }}" -o 'jsonpath={.spec.template.spec.containers[0].env[?(@.name=="USER_PASSWORD")].value}'
     register: password
+    changed_when: false
+    tags: status
 
   - name: 3scale is ready !
     debug: msg="Login on https://{{ threescale_options.tenant_name }}-admin.{{ threescale_options.wildcard_domain }} with username = '{{ username.stdout }}' and password = '{{ password.stdout }}'"
+    tags: status
diff --git a/roles/3scale/tasks/status.yml b/roles/3scale/tasks/status.yml
new file mode 100644
index 0000000..18b7cfe
--- /dev/null
+++ b/roles/3scale/tasks/status.yml
@@ -0,0 +1,22 @@
+---
+
+  - name: Retrieve current ReplicationController status
+    command: 'oc get rc -o json -n "{{ threescale_options.project }}"'
+    register: rc_state
+    changed_when: false
+
+  - name: Parse the list of deployed ReplicationController
+    set_fact:
+      replication_controllers: '{{ rc_state.stdout |from_json |json_query(''items[? @.status.replicas && @.status.replicas != `0`].metadata.annotations."openshift.io/deployment-config.name"'') }}'
+      replication_controllers_status: '{{ rc_state.stdout |from_json |json_query(''items[? @.status.replicas && @.status.replicas != `0`].{"name": metadata.annotations."openshift.io/deployment-config.name", "status": status.readyReplicas}'') }}'
+
+
+  - name: Retrieve current DeploymentConfig status
+    command: 'oc get dc -o json -n "{{ threescale_options.project }}"'
+    register: dc_state
+    changed_when: false
+
+  - name: Parse the list of DeploymentConfig
+    set_fact:
+      deployment_configs: '{{ dc_state.stdout |from_json |json_query(''items[? metadata.generation > `1`].metadata.name'') }}'
+      deployment_configs_status: '{{ dc_state.stdout |from_json |json_query(''items[? metadata.generation > `1` ].{"name": metadata.name, "status": status.replicas}'') }}'
diff --git a/roles/3scale/tasks/wait_for.yml b/roles/3scale/tasks/wait_for.yml
new file mode 100644
index 0000000..3c8f2b6
--- /dev/null
+++ b/roles/3scale/tasks/wait_for.yml
@@ -0,0 +1,9 @@
+---
+
+  - name: Wait for all pending deployments to become ready
+    command: 'oc get rc -o json -n "{{ threescale_options.project }}"'
+    register: rc_state
+    changed_when: false
+    retries: "{{ threescale_options.retries }}"
+    delay: "{{ threescale_options.delay }}"
+    until: 'rc_state.stdout |from_json |json_query(''items[?  status.replicas != `0` && (status.readyReplicas == ""|| status.readyReplicas == `0`) ].metadata.annotations."openshift.io/deployment-config.name"'') |intersect(pod_to_wait) |length == 0'
diff --git a/roles/3scale/vars/main.yml b/roles/3scale/vars/main.yml
index 41824dc..2ce12bd 100644
--- a/roles/3scale/vars/main.yml
+++ b/roles/3scale/vars/main.yml
@@ -5,3 +5,5 @@
     project: 3scale
     tenant_name: 3scale
     wildcard_domain: "{{ openshift_master_default_subdomain }}"
+    delay: 5
+    retries: 30