Leverage inventory plugins for actions

[quietjoy]

• ansible-rulebook version: 0.10.1
• Python version: 3.11.0
• Operating System: fedora:37

Description

I am trying to leverage the aws inventory plugin for an action. I would like my action to run against ec2 instances deployed in aws. The aws inventory plugin allows me to dynamically look up the instances I want to run against using the aws API.

I would also like to leverage the aws ssm connection plugin.

What I Did

I am running ansible-rulebook pointed to my aws inventory. This is the same inventory I want my action to use.

ansible-rulebook --rulebook rulebook.yml -i inventory/aws_ec2.yml --verbose

My rulebook...

---
- name: Listen for events on a webhook
  hosts: all
  sources:
    - ansible.eda.webhook:
        host: 0.0.0.0
        port: 5000
  rules:
    - name: Prepare build server
      condition: event.payload.message == "Prep Build Server"
      action:
        run_playbook:
          name: tasks/build_server.yml

The file tasks/build_server.yml

- hosts: build_server
  vars:
    ansible_connection: aws_ssm
    ansible_aws_ssm_bucket_name: ansible-eda-demo
    ansible_aws_ssm_region: us-east-1
  tasks:
  - name: Install all packages for bender
    dnf:
      name:
      - python3-pip
      - buildah
      - podman
      - ansible
      - docker
  - name: Start dockerd
    systemd:
      name: docker
      state: started
  - name: install bender
    pip:
      name:
      - ansible-bender

My inventory leveraging the aws inventory plugin

plugin: aws_ec2
regions:
  - us-east-1
filters:
  instance-state-name: running
compose:
  ansible_host: instance_id
keyed_groups:
  - key: tags.Name
    separator: ''

Here is the output when ansible-rulebook attempts to run the action build_server.

2/3/2023, 2:16:41 PM | PLAY RECAP *************** | eda-demo
2/3/2023, 2:16:41 PM | skipping: no hosts matched | eda-demo
2/3/2023, 2:16:41 PM | [WARNING]: * Failed to parse /tmp/run_playbookmfk3b58g/inventory/hosts with | eda-demo
2/3/2023, 2:16:41 PM | yaml plugin: Plugin configuration YAML file, not YAML inventory | eda-demo
2/3/2023, 2:16:41 PM | [WARNING]: * Failed to parse /tmp/run_playbookmfk3b58g/inventory/hosts with | eda-demo
2/3/2023, 2:16:41 PM | ini plugin: Invalid host pattern 'compose:' supplied, ending in ':' is not | eda-demo
2/3/2023, 2:16:41 PM | allowed, this character is reserved to provide a port. | eda-demo
2/3/2023, 2:16:41 PM | [WARNING]: Unable to parse /tmp/run_playbookmfk3b58g/inventory/hosts as an | eda-demo
2/3/2023, 2:16:41 PM | inventory source | eda-demo
2/3/2023, 2:16:41 PM | [WARNING]: Unable to parse /tmp/run_playbookmfk3b58g/inventory as an inventory | eda-demo
2/3/2023, 2:16:41 PM | source | eda-demo
2/3/2023, 2:16:41 PM | [WARNING]: No inventory was parsed, only implicit localhost is available | eda-demo
2/3/2023, 2:16:41 PM | [WARNING]: provided hosts list is empty, only localhost is available. Note that | eda-demo
2/3/2023, 2:16:41 PM | the implicit localhost does not match 'all' | eda-demo
2/3/2023, 2:16:41 PM | [WARNING]: Could not match supplied host pattern, ignoring: build_server | eda-demo

From the output, it appears the action run is looking for a default host file and not the inventory that ansible-rulebook was passed. What inventory do the actions use? Is it possible to get an action to use a custom inventory?

[Alex-Izquierdo]

Hello @quietjoy Ansible-rulebook doesn't process inventories through ansible plugins. Currently only static inventories in yaml format are supported. We have plan to extend the support in the future.