✨(playbook) introduce static services

Add support  for static services, with  fixed name, in addition  to the services
deployed with  a deployment stamp in  their name. It allows  applications inside
the cluster to use the services exposed by other applications, with a consistent
fqdn.

BREAKING  CHANGE :  blue/green related  tasks are  now updating  static services
instead of routes

CHANGELOG.md

@@ -20,6 +20,7 @@ Versioning](http://semver.org/spec/v2.0.0.html).
   - `marsha`
   - `edxec`
   - `edxapp`
+- Introduce static services to expose services to other apps with a fixed name
 
 ### Changed
 

apps/edxapp/templates/services/nginx/route_cms.yml.j2

@@ -8,7 +8,6 @@ metadata:
     customer: "{{ customer }}"
     app: "edxapp"
     service: "nginx"
-    version: "{{ edxapp_nginx_image_tag }}"
     route_prefix: "{{ prefix }}"
     route_target_service: "cms"
   annotations:
@@ -25,4 +24,4 @@ spec:
     targetPort: "{{ edxapp_nginx_cms_port }}-tcp"
   to:
     kind: Service
-    name: "edxapp-nginx-{{ deployment_stamp }}"
+    name: "edxapp-nginx-{{ prefix }}"

apps/edxapp/templates/services/nginx/route_lms.yml.j2

@@ -8,7 +8,6 @@ metadata:
     customer: "{{ customer }}"
     app: "edxapp"
     service: "nginx"
-    version: "{{ edxapp_nginx_image_tag }}"
     route_prefix: "{{ prefix }}"
     route_target_service: "lms"
   annotations:
@@ -25,4 +24,4 @@ spec:
     targetPort: "{{ edxapp_nginx_lms_port }}-tcp"
   to:
     kind: Service
-    name: "edxapp-nginx-{{ deployment_stamp }}"
+    name: "edxapp-nginx-{{ prefix }}"

apps/edxapp/templates/services/nginx/route_preview.yml.j2

@@ -8,7 +8,6 @@ metadata:
     customer: "{{ customer }}"
     app: "edxapp"
     service: "nginx"
-    version: "{{ edxapp_nginx_image_tag }}"
     route_prefix: "{{ prefix }}"
     route_target_service: "lms"
   annotations:
@@ -25,4 +24,4 @@ spec:
     targetPort: "{{ edxapp_nginx_lms_port }}-tcp"
   to:
     kind: Service
-    name: "edxapp-nginx-{{ deployment_stamp }}"
+    name: "edxapp-nginx-{{ prefix }}"

apps/edxapp/templates/services/nginx/static-svc.yml.j2

@@ -0,0 +1,30 @@
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: edxapp
+    service: nginx
+    deployment_stamp: "{{ deployment_stamp }}"
+    service_prefix: "{{ prefix }}"
+    type: static-service
+    removable: "no"
+  name: "edxapp-nginx-{{ prefix }}"
+  namespace: "{{ project_name }}"
+spec:
+  ports:
+    - name: "{{ edxapp_nginx_cms_port }}-tcp"
+      port: {{ edxapp_nginx_cms_port }}
+      protocol: TCP
+      targetPort: {{ edxapp_nginx_cms_port }}
+    - name: "{{ edxapp_nginx_lms_port }}-tcp"
+      port: {{ edxapp_nginx_lms_port }}
+      protocol: TCP
+      targetPort: {{ edxapp_nginx_lms_port }}
+    - name: "{{ edxapp_nginx_healthcheck_port }}-tcp"
+      port: {{ edxapp_nginx_healthcheck_port }}
+      protocol: TCP
+      targetPort: {{ edxapp_nginx_healthcheck_port }}
+  selector:
+    app: edxapp
+    deploymentconfig: "edxapp-nginx-{{ deployment_stamp | default('undefined', true) }}"
+  type: ClusterIP

apps/edxec/templates/services/nginx/route.yml.j2

@@ -8,7 +8,6 @@ metadata:
     customer: "{{ customer }}"
     app: "edxec"
     service: "nginx"
-    version: "{{ edxec_nginx_image_tag }}"
     route_prefix: "{{ prefix }}"
     route_target_service: "app"
   annotations:
@@ -24,4 +23,4 @@ spec:
     targetPort: "{{ edxec_nginx_port }}-tcp"
   to:
     kind: Service
-    name: "edxec-nginx-{{ deployment_stamp }}"
+    name: "edxec-nginx-{{ prefix }}"

apps/edxec/templates/services/nginx/static-svc.yml.j2

@@ -0,0 +1,26 @@
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: edxec
+    service: nginx
+    deployment_stamp: "{{ deployment_stamp }}"
+    service_prefix: "{{ prefix }}"
+    type: static-service
+    removable: "no"
+  name: "edxec-nginx-{{ prefix }}"
+  namespace: "{{ project_name }}"
+spec:
+  ports:
+    - name: {{ edxec_nginx_port }}-tcp
+      port: {{ edxec_nginx_port }}
+      protocol: TCP
+      targetPort: {{ edxec_nginx_port }}
+    - name: "{{ edxec_nginx_healthcheck_port }}-tcp"
+      port: {{ edxec_nginx_healthcheck_port }}
+      protocol: TCP
+      targetPort: {{ edxec_nginx_healthcheck_port }}
+  selector:
+    app: edxec
+    deploymentconfig: "edxec-nginx-{{ deployment_stamp | default('undefined', true) }}"
+  type: ClusterIP

apps/forum/templates/services/app/route.yml.j2

@@ -8,7 +8,6 @@ metadata:
     customer: "{{ customer }}"
     app: "forum"
     service: "app"
-    version: "{{ forum_image_tag }}"
     route_prefix: "{{ prefix }}"
     route_target_service: "app"
   annotations:
@@ -24,4 +23,4 @@ spec:
     targetPort: "{{ forum_port }}-tcp"
   to:
     kind: Service
-    name: "forum-app-{{ deployment_stamp }}"
+    name: "forum-app-{{ prefix }}"

apps/forum/templates/services/app/static-svc.yml.j2

@@ -0,0 +1,22 @@
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: forum
+    service: forum
+    deployment_stamp: "{{ deployment_stamp }}"
+    service_prefix: "{{ prefix }}"
+    type: static-service
+    removable: "no"
+  name: "forum-app-{{ prefix }}"
+  namespace: "{{ project_name }}"
+spec:
+  ports:
+    - name: "{{ forum_port }}-tcp"
+      port: {{ forum_port }}
+      protocol: TCP
+      targetPort: {{ forum_port }}
+  selector:
+    app: forum
+    deploymentconfig: "forum-app-{{ deployment_stamp | default('undefined', true) }}"
+  type: ClusterIP

apps/hello/templates/services/app/route.yml.j2

@@ -21,4 +21,4 @@ spec:
     targetPort: "{{ hello_app_port }}-tcp"
   to:
     kind: Service
-    name: "hello-app-{{ deployment_stamp }}"
+    name: "hello-app-{{ prefix }}"

apps/hello/templates/services/app/static-svc.yml.j2

@@ -0,0 +1,20 @@
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: hello
+    deployment_stamp: "{{ deployment_stamp }}"
+    service_prefix: "{{ prefix }}"
+    type: static-service
+    removable: "no"
+  name: "hello-app-{{ prefix }}"
+  namespace: "{{ project_name }}"
+spec:
+  ports:
+  - name: {{ hello_app_port }}-tcp
+    port: {{ hello_app_port }}
+    protocol: TCP
+    targetPort: {{ hello_app_port }}
+  type: ClusterIP
+  selector:
+    deploymentconfig: "hello-app-{{ deployment_stamp | default('undefined', true) }}"

apps/learninglocker/templates/services/nginx/route.yml.j2

@@ -8,7 +8,6 @@ metadata:
     customer: "{{ customer }}"
     app: "learninglocker"
     service: "nginx"
-    version: "{{ learninglocker_nginx_image_tag }}"
     route_prefix: "{{ prefix }}"
   annotations:
     kubernetes.io/tls-acme: "true"
@@ -23,4 +22,4 @@ spec:
     targetPort: "{{ learninglocker_nginx_port }}-tcp"
   to:
     kind: Service
-    name: "learninglocker-nginx-{{ deployment_stamp }}"
+    name: "learninglocker-nginx-{{ prefix }}"

apps/learninglocker/templates/services/nginx/static-svc.yml.j2

@@ -0,0 +1,26 @@
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: learninglocker
+    service: nginx
+    deployment_stamp: "{{ deployment_stamp }}"
+    service_prefix: "{{ prefix }}"
+    type: static-service
+    removable: "no"
+  name: "learninglocker-nginx-{{ prefix }}"
+  namespace: "{{ project_name }}"
+spec:
+  ports:
+    - name: "{{ learninglocker_nginx_port }}-tcp"
+      port: {{ learninglocker_nginx_port }}
+      protocol: TCP
+      targetPort: {{ learninglocker_nginx_port }}
+    - name: "{{ learninglocker_nginx_healthcheck_port }}-tcp"
+      port: {{ learninglocker_nginx_healthcheck_port }}
+      protocol: TCP
+      targetPort: {{ learninglocker_nginx_healthcheck_port }}
+  selector:
+    app: learninglocker
+    deploymentconfig: "learninglocker-nginx-{{ deployment_stamp | default('undefined', true) }}"
+  type: ClusterIP

apps/marsha/templates/services/nginx/route.yml.j2

@@ -8,7 +8,6 @@ metadata:
     customer: "{{ customer }}"
     app: "marsha"
     service: "nginx"
-    version: "{{ marsha_nginx_image_tag }}"
     route_prefix: "{{ prefix }}"
     route_target_service: "app"
   annotations:
@@ -24,4 +23,4 @@ spec:
     targetPort: "{{ marsha_nginx_port }}-tcp"
   to:
     kind: Service
-    name: "marsha-nginx-{{ deployment_stamp }}"
+    name: "marsha-nginx-{{ prefix }}"

apps/marsha/templates/services/nginx/static-svc.yml.j2

@@ -0,0 +1,26 @@
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: marsha
+    service: nginx
+    deployment_stamp: "{{ deployment_stamp }}"
+    service_prefix: "{{ prefix }}"
+    type: static-service
+    removable: "no"
+  name: "marsha-nginx-{{ prefix }}"
+  namespace: "{{ project_name }}"
+spec:
+  ports:
+    - name: {{ marsha_nginx_port }}-tcp
+      port: {{ marsha_nginx_port }}
+      protocol: TCP
+      targetPort: {{ marsha_nginx_port }}
+    - name: "{{ marsha_nginx_healthcheck_port }}-tcp"
+      port: {{ marsha_nginx_healthcheck_port }}
+      protocol: TCP
+      targetPort: {{ marsha_nginx_healthcheck_port }}
+  selector:
+    app: marsha
+    deploymentconfig: "marsha-nginx-{{ deployment_stamp | default('undefined', true) }}"
+  type: ClusterIP

apps/richie/templates/services/nginx/route.yml.j2

@@ -8,7 +8,6 @@ metadata:
     customer: "{{ customer }}"
     app: "richie"
     service: "nginx"
-    version: "{{ richie_nginx_image_tag }}"
     route_prefix: "{{ prefix }}"
     route_target_service: "app"
   annotations:
@@ -24,4 +23,4 @@ spec:
     targetPort: "{{ richie_nginx_port }}-tcp"
   to:
     kind: Service
-    name: "richie-nginx-{{ deployment_stamp }}"
+    name: "richie-nginx-{{ prefix }}"

apps/richie/templates/services/nginx/static-svc.yml.j2

@@ -0,0 +1,26 @@
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: richie
+    service: nginx
+    service_prefix: "{{ prefix }}"
+    deployment_stamp: "{{ deployment_stamp }}"
+    type: static-service
+    removable: "no"
+  name: "richie-nginx-{{ prefix }}"
+  namespace: "{{ project_name }}"
+spec:
+  ports:
+    - name: {{ richie_nginx_port }}-tcp
+      port: {{ richie_nginx_port }}
+      protocol: TCP
+      targetPort: {{ richie_nginx_port }}
+    - name: "{{ richie_nginx_healthcheck_port }}-tcp"
+      port: {{ richie_nginx_healthcheck_port }}
+      protocol: TCP
+      targetPort: {{ richie_nginx_healthcheck_port }}
+  type: ClusterIP
+  selector:
+    app: richie
+    deploymentconfig: "richie-nginx-{{ deployment_stamp | default('undefined', true) }}"

create_services.yml

@@ -0,0 +1,20 @@
+- hosts: local
+  gather_facts: False
+
+  pre_tasks:
+    - import_tasks: tasks/check_configuration.yml
+
+  tasks:
+    - name: Display playbook name
+      debug: msg="==== Starting create_services playbook ===="
+      tags: deploy
+
+    - import_tasks: tasks/set_vars.yml
+
+    - include_tasks: tasks/run_tasks_for_apps.yml
+      vars:
+        tasks:
+          - get_objects_for_app
+          - create_static_services
+      tags:
+        - static_service

delete_previous.yml

@@ -21,9 +21,9 @@
       vars:
         tasks:
           - get_objects_for_app
-          - deploy_get_stamp_from_route
+          - deploy_get_stamp_from_static_service
           - delete_app
         prefix: previous
       tags:
-        - route
+        - static_service
         - switch

deploy.yml

@@ -46,15 +46,15 @@
         - config
         - deploy
 
-    # Patch all next routes of all apps after deploy
+    # Patch all next static services of all apps after deploy
     - include_tasks: tasks/run_tasks_for_apps.yml
       vars:
         prefix: "next"
         tasks:
           - get_objects_for_app
-          - deploy_get_stamp_from_route
-          - deploy_patch_route
+          - deploy_get_stamp_from_static_service
+          - deploy_patch_static_service
           - delete_app
       tags:
-        - route
+        - static_service
         - deploy