Tag Archives: AWX

CLI, OS

Upgrading AWX

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AWX is the open source version of Ansible Tower. It’s a powerful tool, but unfortunately AWX has no in place upgrade capability. If you want to upgrade your AWX to the latest version it takes a bit of trickery (the easy way out being just to pay for Ansible Tower.)

Essentially to upgrade AWX you need to spin up a completely new instance and then migrate your data over to it. Fortunately there is a script out there that makes doing this a bit easier.

Below are my notes for how I upgraded my instance of AWX from version 1.0.6 to 2.1.0.

Create temporary AWX migration server

Spin up new server with ansible installed, then clone AWX

git clone https://github.com/ansible/awx.git 
cd awx 
git clone https://github.com/ansible/awx-logos.git

Modify AWX install to expose 5432 externally:

edit installer/roles/local_docker/tasks/standalone.yml and add

    ports:
      - "5432:5432"

right above the when: pg_hostname is not defined or pg_hostname == '' line. Complete stanza looks like this:

- name: Activate postgres container
  docker_container:
    name: postgres
    state: started
    restart_policy: unless-stopped
    image: "{{ postgresql_image }}"
    volumes:
      - "{{ postgres_data_dir }}:/var/lib/postgresql/data:Z"
    env:
      POSTGRES_USER: "{{ pg_username }}"
      POSTGRES_PASSWORD: "{{ pg_password }}"
      POSTGRES_DB: "{{ pg_database }}"
      PGDATA: "/var/lib/postgresql/data/pgdata"
    ports:
      - "5432:5432"
  when: pg_hostname is not defined or pg_hostname == ''
  register: postgres_container_activate

Make sure you have port 5432 open on your host-based firewall.

Install AWX on the new host. Verify you can log into the empty instance and that it’s the version you want to upgrade to.

Prepare original AWX server to send

Kill the AWX postgres container on the source machine, and re-run awx installer after modifying it to expose its postgres port as described above.

Install tower-cli (this can be on either source or destination servers)

sudo pip install ansible-tower-cli

Configure tower-cli

tower-cli config username SRC_AWX_USERNAME
towercli config password SRC_AWX_PASSWORD
towercli config host SRC_AWX_HOST

Make sure to use full ansible URL as accessed from a browser for both source and destination

Install awx-migrate:

git clone https://github.com/autops/awx-migrate.git

Update awx-migrate/awx-migrate-wrapper with correct source and destination info

Run awx-migrate-wrapper. It will generate json files with your configuration.

Migrate database to temporary server

Modify tower-cli config, set host, username and password to that of the destination AWX instance

tower-cli config username DEST_AWX_USERNAME
towercli config password DEST_AWX_PASSWORD
towercli config host: DEST_AWX_HOST

Send JSON info to destination:

tower-cli send awx-data.json

You will now have a fresh new, updated AWX instance working, with imported database, on the destination host. Confirm you can log into it with the admin account you set it up with.

Prepare original AWX server to receive

Now, on the source, remove  the old AWX docker containers:

sudo docker rm -f postgres awx_task awx_web memcached rabbitmq

Move / delete the database folder the postgres docker container was using (as defined in awx installer inventory) in my case:

/var/lib/awx
/var/db/pgsqldocker

Remove and re-install AWX folder with a fresh git checkout

rm -rf awx
git clone https://github.com/ansible/awx.git
cd awx
git clone https://github.com/ansible/awx-logos.git

Re-run the AWX installer to re-create a blank database on the source host, modify the new awx/installer/inventory as needed. Also modify installer/roles/local_docker/tasks/standalone.yml as outlined above.

cd awx/installer
sudo ansible-playbook -i inventory install.yml

Migrate from temporary AWX server back to source AWX server

Once a new, empty version of awx is running on the source host,  start the awx-migrate process in reverse to migrate the database on the destination instance back to the source. Modify awx-migrate-wrapper and tower-cli to switch src and destination (the destination has become the source and the source has become the destination)

Use awx-migrate-wrapper to generate  new ansible version json files (don’t confuse them with the old json files – best to delete / move all json files before running awx-migrate-wrapper)

Modify tower-cli to point to original AWX URL

Run tower-cli send awx-data.json

Once completed, log in as the admin account. Input LDAP BIND password under settings, then delete any imported LDAP users.

Cleanup

You may want to remove the exposed postgres database ports. Simply undo the changes you made in awx/installer/roles/local_docker/tasks/standalone.yml to remove the Ports part of the first play, then remove your postgres container and re-install AWX with install.yml

Also remember to delete the JSON files generated with awx-migrate as they contain all your credentials in plaintext.

Success.