Implement ensure mechanism for containers

Added workaround to stop containers which should
not be on the node, accouding to a file with list
of services which is filled in by ansible's tasks.

It allows to implement scale-down and resource
migration.

examples/check_deployment.sh

@@ -1,4 +1,4 @@
 #!/bin/bash
 
-docker exec -it keystone-test keystone --debug --os-username admin --os-password password --os-tenant-name admin --os-auth-url http://10.0.0.3:8080/v2.0 role-list
+docker exec -it solar.keystone-test keystone --debug --os-username admin --os-password password --os-tenant-name admin --os-auth-url http://10.0.0.3:8080/v2.0 role-list
 

examples/resources/containers.yml

@@ -0,0 +1,13 @@
+id: containers
+class: containers
+type: resource
+handler: ansible
+version: v1
+
+actions:
+    ensure: simple/containers/ensure.yml
+    clean_list: simple/containers/clean_list.yml
+
+input: {}
+
+tags: [service/containers]

examples/resources/haproxy.yml

@@ -9,7 +9,7 @@ actions:
   remove: simple/haproxy/remove.yml
 
 input:
-  name: haproxy-test
+  name: solar.haproxy-test
   image: 'haproxy:1.5'
 
   services:

examples/resources/keystone.yml

@@ -17,7 +17,7 @@ input:
     item: '{{ item.node.ip }}'
   admin_port: 35357
   public_port: 5000
-  name: keystone-test
+  name: solar.keystone-test
   image: kollaglue/centos-rdo-keystone
 
 tags: [service/keystone]

examples/resources/mariadb.yml

@@ -12,7 +12,7 @@ actions:
 
 input:
   bind_ip: "{{ this.node.ip }}"
-  name: mariadb-test
+  name: solar.mariadb-test
   image: kollaglue/fedora-rdo-mariadb-app
   root_password: test1
   users:

examples/resources/simple/containers/clean_list.yml

@@ -0,0 +1,6 @@
+
+- hosts: [service/containers]
+  sudo: yes
+  tasks:
+    - file: state=directory path=/var/lib/solar/
+    - shell: echo -n "" > /var/lib/solar/containers_list

examples/resources/simple/containers/ensure.yml

@@ -0,0 +1,9 @@
+
+- hosts: [service/containers]
+  sudo: yes
+  tasks:
+    - shell: docker ps -a | egrep -v "CONTAINER ID|$(cat /var/lib/solar/containers_list | tr '\n' '|' | sed 's/|$//')"  | egrep 'solar\.' | awk '{print $1}'
+      register: containers
+
+    - shell: docker rm -f {{item}}
+      with_items: containers.stdout_lines

examples/resources/simple/haproxy/run.yml

@@ -2,6 +2,8 @@
 - hosts: [service/haproxy]
   sudo: yes
   tasks:
+    - shell: echo {{name}} >> /var/lib/solar/containers_list
+
     - shell: docker ps | grep -q {{name}}
       ignore_errors: true
       register: is_running

examples/resources/simple/keystone/run.yml

@@ -2,6 +2,8 @@
 - hosts: [service/keystone]
   sudo: yes
   tasks:
+    - shell: echo {{name}} >> /var/lib/solar/containers_list
+
     - shell: docker ps | grep -q {{name}}
       ignore_errors: true
       register: is_running

examples/resources/simple/mariadb/run.yml

@@ -2,6 +2,7 @@
 - hosts: [service/mariadb]
   sudo: yes
   tasks:
+    - shell: echo {{name}} >> /var/lib/solar/containers_list
     - shell: docker ps | grep -q {{name}}
       ignore_errors: true
       register: is_running