[PR #876/a1c35a14 backport][stable-5] aws_ssm connection: add support…

… for SSM document (#1659)

[PR #876/a1c35a14 backport][stable-5] aws_ssm connection: add support for SSM document

This is a backport of PR #876 as merged into main (a1c35a1).
SUMMARY


This PR adds support for SSM document to the SSM connection plugin.
ISSUE TYPE


Feature Pull Request

COMPONENT NAME

community.aws.aws_ssm
ADDITIONAL INFORMATION


The new document parameters is directly forwarded to the SSM start_session method.

Usage:
- name: Install a Nginx Package
  vars:
    ansible_connection: aws_ssm
    ansible_aws_ssm_bucket_name: nameofthebucket
    ansible_aws_ssm_region: us-west-2
    ansible_aws_ssm_document: nameofthecustomdocument
  tasks:
    - name: Install a Nginx Package
      yum:
        name: nginx
        state: present

Reviewed-by: Mark Chappell <None>

changelogs/fragments/876-aws_ssm_connection_ssm_document.yml

@@ -0,0 +1,2 @@
+minor_changes:
+- aws_ssm_connection - add support for custom SSM document (https://github.com/ansible-collections/community.aws/pull/876)

plugins/connection/aws_ssm.py

@@ -82,6 +82,11 @@
     version_added: 2.2.0
     vars:
     - name: ansible_aws_ssm_bucket_sse_kms_key_id
+  ssm_document:
+    description: SSM document to use when connecting.
+    vars:
+    - name: ansible_aws_ssm_document
+    version_added: 5.2.0
 '''
 
 EXAMPLES = r'''
@@ -188,6 +193,19 @@
       yum:
         name: nginx
         state: present
+
+# Install a Nginx Package on Linux Instance; with dedicated SSM document
+- name: Install a Nginx Package
+  vars:
+    ansible_connection: aws_ssm
+    ansible_aws_ssm_bucket_name: nameofthebucket
+    ansible_aws_ssm_region: us-west-2
+    ansible_aws_ssm_document: nameofthecustomdocument
+  tasks:
+    - name: Install a Nginx Package
+      yum:
+        name: nginx
+        state: present
 '''
 
 import os
@@ -342,7 +360,11 @@ def start_session(self):
         ssm_parameters = dict()
         client = self._get_boto_client('ssm', region_name=region_name, profile_name=profile_name)
         self._client = client
-        response = client.start_session(Target=self.instance_id, Parameters=ssm_parameters)
+        start_session_args = dict(Target=self.instance_id, Parameters=ssm_parameters)
+        document_name = self.get_option('ssm_document')
+        if document_name is not None:
+            start_session_args['DocumentName'] = document_name
+        response = client.start_session(**start_session_args)
         self._session_id = response['SessionId']
 
         cmd = [

tests/integration/targets/connection_aws_ssm_ssm_document/aliases

@@ -0,0 +1,4 @@
+time=20m
+
+cloud/aws
+connection_aws_ssm

tests/integration/targets/connection_aws_ssm_ssm_document/aws_ssm_integration_test_setup.yml

@@ -0,0 +1,6 @@
+- hosts: localhost
+  roles:
+    - role: ../setup_connection_aws_ssm
+      vars:
+        target_os: fedora
+        use_ssm_document: True

tests/integration/targets/connection_aws_ssm_ssm_document/aws_ssm_integration_test_teardown.yml

@@ -0,0 +1,5 @@
+- hosts: localhost
+  tasks:
+    - include_role:
+        name: ../setup_connection_aws_ssm
+        tasks_from: cleanup.yml

tests/integration/targets/connection_aws_ssm_ssm_document/meta/main.yml

@@ -0,0 +1,3 @@
+dependencies:
+  - connection
+  - setup_connection_aws_ssm

tests/integration/targets/connection_aws_ssm_ssm_document/runme.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+
+PLAYBOOK_DIR=$(pwd)
+set -eux
+
+CMD_ARGS=("$@")
+
+# Destroy Environment
+cleanup() {
+
+    cd "${PLAYBOOK_DIR}"
+    ansible-playbook -c local aws_ssm_integration_test_teardown.yml "${CMD_ARGS[@]}"
+
+}
+
+trap "cleanup" EXIT
+
+# Setup Environment
+ansible-playbook -c local aws_ssm_integration_test_setup.yml "$@"
+
+# Export the AWS Keys
+set +x
+. ./aws-env-vars.sh
+set -x
+
+cd ../connection
+
+# Execute Integration tests
+INVENTORY="${PLAYBOOK_DIR}/ssm_inventory" ./test.sh \
+    -e target_hosts=aws_ssm \
+    "$@"

tests/integration/targets/setup_connection_aws_ssm/defaults/main.yml

@@ -47,3 +47,4 @@ encrypted_s3_bucket_name: ssm-encrypted-test-bucket
 
 s3_bucket_name: "{{ resource_prefix }}-connection-ssm"
 kms_key_name: "{{ resource_prefix }}-connection-ssm"
+ssm_document_name: "{{ resource_prefix }}-connection-ssm"

tests/integration/targets/setup_connection_aws_ssm/files/ssm-document.json

@@ -0,0 +1,15 @@
+{
+  "schemaVersion": "1.0",
+  "description": "Custom SSM document",
+  "sessionType": "Standard_Stream",
+  "inputs": {
+    "s3EncryptionEnabled": false,
+    "cloudWatchLogGroupName": "",
+    "cloudWatchEncryptionEnabled": false,
+    "idleSessionTimeout": "20",
+    "cloudWatchStreamingEnabled": false,
+    "kmsKeyId": "",
+    "runAsEnabled": false,
+    "runAsDefaultUser": ""
+  }
+}

tests/integration/targets/setup_connection_aws_ssm/tasks/cleanup.yml

@@ -10,6 +10,9 @@
       region: '{{ aws_region }}'
   block:
 
+    - name: setup connection argments fact
+      include_tasks: 'connection_args.yml'
+
     - name: Check if instance_vars_to_delete.yml is present
       stat:
         path: "{{ playbook_dir }}/instance_vars_to_delete.yml"
@@ -37,6 +40,15 @@
       include_vars: "{{ playbook_dir }}/iam_role_vars_to_delete.yml"
       when: iam_role_vars_file.stat.exists == true
 
+    - name: Check if ssm_vars_to_delete.yml is present
+      stat:
+        path: "{{ playbook_dir }}/ssm_vars_to_delete.yml"
+      register: ssm_vars_file
+
+    - name: Include variable file to delete SSM infra
+      include_vars: "{{ playbook_dir }}/ssm_vars_to_delete.yml"
+      when: ssm_vars_file.stat.exists == true
+
     - name: Terminate EC2 instances that were previously launched
       ec2_instance:
         instance_ids: "{{ created_instance_ids }}"
@@ -64,6 +76,11 @@
         state: absent
         alias: '{{ kms_key_name }}'
 
+    - name: Delete SSM document
+      command: "aws ssm delete-document --name {{ ssm_document_name }}"
+      environment: "{{ connection_env }}"
+      ignore_errors: yes
+
     - name: Delete AWS keys environement
       file:
         path: "{{ playbook_dir }}/aws-env-vars.sh"

tests/integration/targets/setup_connection_aws_ssm/tasks/connection_args.yml

@@ -0,0 +1,14 @@
+---
+- set_fact:
+    # As a lookup plugin we don't have access to module_defaults
+    connection_args:
+      region: "{{ aws_region }}"
+      aws_access_key: "{{ aws_access_key }}"
+      aws_secret_key: "{{ aws_secret_key }}"
+      aws_security_token: "{{ security_token | default(omit) }}"
+    connection_env:
+      AWS_DEFAULT_REGION: "{{ aws_region }}"
+      AWS_ACCESS_KEY_ID: "{{ aws_access_key }}"
+      AWS_SECRET_ACCESS_KEY: "{{ aws_secret_key }}"
+      AWS_SESSION_TOKEN: "{{ security_token | default(omit) }}"
+  no_log: True

tests/integration/targets/setup_connection_aws_ssm/tasks/main.yml

@@ -15,6 +15,9 @@
       aws_caller_info:
       register: aws_caller_info
 
+    - name: setup connection argments fact
+      include_tasks: 'connection_args.yml'
+
     - name: Ensure IAM instance role exists
       iam_role:
         name: "ansible-test-{{tiny_prefix}}-aws-ssm-role"
@@ -43,14 +46,6 @@
       when:
         - ami_configuration.ssm_parameter | default(False)
       block:
-        - set_fact:
-            # As a lookup plugin we don't have access to module_defaults
-            connection_args:
-              region: "{{ aws_region }}"
-              aws_access_key: "{{ aws_access_key }}"
-              aws_secret_key: "{{ aws_secret_key }}"
-              aws_security_token: "{{ security_token | default(omit) }}"
-          no_log: True
         - set_fact:
             ssm_amis: "{{ lookup('aws_ssm', ami_configuration.ssm_parameter, **connection_args) }}"
 
@@ -101,6 +96,11 @@
       when:
         - encrypted_bucket | default(False)
 
+    - name: setup SSM document
+      include_tasks: 'ssm_document.yml'
+      when:
+        - use_ssm_document | default(False)
+
     - name: Create S3 bucket
       s3_bucket:
         name: "{{ s3_bucket_name }}"
@@ -141,3 +141,9 @@
       when:
         - s3_output is successful
       ignore_errors: yes
+
+    - name: Create SSM vars_to_delete.yml
+      template:
+        dest: "{{ playbook_dir }}/ssm_vars_to_delete.yml"
+        src: ssm_vars_to_delete.yml.j2
+      ignore_errors: yes

tests/integration/targets/setup_connection_aws_ssm/tasks/ssm_document.yml

@@ -0,0 +1,11 @@
+---
+- block:
+    - name: Create custom SSM document
+      command: "aws ssm create-document --content file://{{ role_path }}/files/ssm-document.json --name {{ ssm_document_name }} --document-type Session"
+      environment: "{{ connection_env }}"
+  always:
+    - name: Create SSM vars_to_delete.yml
+      template:
+        dest: "{{ playbook_dir }}/ssm_vars_to_delete.yml"
+        src: ssm_vars_to_delete.yml.j2
+      ignore_errors: yes

tests/integration/targets/setup_connection_aws_ssm/templates/inventory-combined.aws_ssm.j2

@@ -38,6 +38,9 @@ ansible_aws_ssm_bucket_name={{ encrypted_s3_bucket_name }}
 {% else %}
 ansible_aws_ssm_bucket_name={{ s3_bucket_name }}
 {% endif %}
+{% if use_ssm_document | default(False) %}
+ansible_aws_ssm_document={{ ssm_document_name }}
+{% endif %}
 
 # support tests that target testhost
 [testhost:children]

tests/integration/targets/setup_connection_aws_ssm/templates/ssm_vars_to_delete.yml.j2

@@ -0,0 +1,2 @@
+---
+ssm_document_name: {{ ssm_document_name }}