add ansible playbook example

README.md

@@ -1,4 +1,18 @@
 # ansible-target-practice
+This repository is an example that accomplishes the following:
+
+- stop/start based on a variable (`targetpractice`)
+- If instances need to be started they are registered in a targetgroup when they become
+  reachable
+- If instances need to be stopped the are first removed from the targetgroup
+
+
+## Dependencies
+```
+ansible-galaxy collection install amazon.aws
+ansible-galaxy collection install community.aws
+```
+
 
 ## EC2 credentials
 Make sure you have a profile that can access the necessary AWS resources.
@@ -84,13 +98,17 @@ You can use the options defined in the AWS CLI `--filter` section.
 [](https://docs.aws.amazon.com/cli/latest/reference/ec2/describe-instances.html#options)
 
 
-
-## Run Ansible
+## Test the inventory
 Testing the inventory can be done using `ansible-inventory`
 
 ```
 ansible-inventory -i aws_ec2.yml --list
 ```
 
+## Testing
+
+```
+ansible-playbook -i aws_ec2.yml site.yml --extra-vars '{"targetpractice": "false"}'
+```
 
 

ansible.cfg

@@ -0,0 +1,2 @@
+[defaults]
+deprecation_warnings=False

aws_ec2.yml

@@ -3,12 +3,14 @@ regions:
   - eu-west-1
 filters:
   tag:env:
-    - dev
     - prod
 hostnames:
+  - network-interface.association.public-ip
+  - network-interface.addresses.private-ip-address
   - ip-address
   - network-interface.addresses.private-ip-address
   - private-dns-name
+  - instance-id
 keyed_groups:
   - key: tags.env
     separator: ""

site.yml

@@ -0,0 +1,49 @@
+- hosts: tag_env_prod
+  remote_user: ec2-user
+  gather_facts: false  # of no use
+  connection: local # prevent from trying to ssh into instance
+
+  vars:
+    target_group_arn: "arn:aws:elasticloadbalancing:eu-west-1:440357826049:targetgroup/TestAnsible/c2afd83500139d9a"
+
+  tasks:
+    - name: DEBUG
+      debug:
+        msg: "{{ hostvars[inventory_hostname].instance_id }}"
+
+    - name: Start instances
+      amazon.aws.ec2:
+        instance_ids: "{{ hostvars[inventory_hostname].instance_id }}"
+        state: running
+      when: targetpractice == "true"
+
+    - name: Wait for instances to be reachable
+      wait_for:
+        host: "{{ inventory_hostname }}"
+        port: 22
+      when: targetpractice == "true"
+
+    - name: Register targets in TargetGroup
+      community.aws.elb_target:
+        target_group_arn: "{{ target_group_arn }}"
+        state: present
+        target_id: "{{ hostvars[inventory_hostname].instance_id }}"
+        target_status: "unused"
+      when: targetpractice == "true"
+    
+    - name: Deregister targets in TargetGroup
+      community.aws.elb_target:
+        target_group_arn: "{{ target_group_arn }}"
+        state: absent
+        target_id: "i-0c6411e58bbaccfad"
+        target_status: "unused"
+        deregister_unused: yes
+      when: targetpractice == "false"
+    
+    - name: Stop instances
+      amazon.aws.ec2:
+        instance_ids: "{{ hostvars[inventory_hostname].instance_id }}"
+        #instance_ids: "{{ play_hosts }}"
+        state: running
+      when: targetpractice == "false"
+