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koji-ansible

https://img.shields.io/badge/dynamic/json?style=flat&label=galaxy&prefix=v&url=https://galaxy.ansible.com/api/v2/collections/ktdreyer/koji_ansible/&query=latest_version.version

Ansible modules to manage Koji resources.

This is not about installing Koji. Instead, it is a way to declaratively define things within Koji, where you might normally use the koji CLI.

koji_tag

The koji_tag module can create, update, and delete tags within Koji. It can also manage the tag inheritance, packages list and groups list for a tag.

- name: Create a koji tag for the ceph product
  koji_tag:
    name: ceph-3.1-rhel-7
    arches: x86_64
    state: present
    packages:
      kdreyer:
        - ansible
        - ceph
        - ceph-ansible
    groups:
      srpm-build:
        - rpm-build
        - fedpkg

koji_target

The koji_target module can create, update, and delete targets within Koji.

- name: Create a koji build target for Fedora 34
  koji_target:
    name: f34-candidate
    build_tag: f34-build
    dest_tag: f34-updates-candidate
    state: present

koji_external_repo

The koji_external_repo module can create, update, and delete external repositories within Koji.

- name: Create an external repo for CentOS "CR"
  koji_external_repo:
    name: centos7-cr
    url: http://mirror.centos.org/centos/7/cr/$arch/
    state: present

You can then configure these repositories (and their priorities) on each of your Koji tags with the external_repos parameter to the koji_tag module.

koji_cg

The koji_cg module can grant or revoke access to a content generator for a user account.

This user account must already exist in Koji's database. For example, you may run an authenticated koji hello command to create the account database entry.

- name: Grant access to the rcm/debbuild account
  koji_cg:
    koji: mykoji
    name: debian
    user: rcm/debbuild
    state: present

Your Koji Hub must be version 1.19 or newer in order to use the new listCGs RPC.

koji_btype

The koji_btype module can add new build types. These are typically in support of content generators.

(Koji only supports adding new build types, not deleting them.)

- name: Add debian build type to Koji
  koji_btype:
    koji: mykoji
    name: debian
    state: present

koji_archivetype

The koji_archivetype module can add new archive types. This allows Koji to recognize new build archive files, for example .dsc files. These are typically in support of content generators.

(Koji only supports adding new archive types, not deleting them.)

Your Koji Hub must be version 1.20 or newer in order to use the new addArchiveType RPC.

- name: Add dsc archive type
  koji_archivetype:
    name: dsc
    description: Debian source control file
    extensions: dsc
    state: present

koji_host

The koji_host module can add new hosts and manage existing hosts.

Koji only supports adding new hosts, not deleting them. Once they're defined, you can enable or disable the hosts with state: enabled or state: disabled.

- name: Add new builder1 host
  koji_host:
    name: builder1.example.com
    arches: [x86_64]
    state: enabled
    channels:
      - default
      - createrepo

If you specify channels that do not yet exist, Ansible will create them. For example, if you are setting up a new builder host for OSBS, you can specify container in the list of channels, and Ansible will automatically create that new "container" channel when it configures the host.

koji_user

The koji_user module can add new users and manage existing users and permissions.

Koji only supports adding new users, not deleting them. Once they're defined, you can enable or disable the users with state: enabled or state: disabled.

- name: Add new kdreyer user
  koji_user:
    name: kdreyer
    state: enabled
    permissions: [admin]

koji_tag_inheritance

The koji_tag module (above) is all-or-nothing when it comes to managing tag inheritance. When you set inheritance with koji_tag, the module will delete any inheritance relationships that are not defined there.

In some cases you may want to declare some inheritance relationships within Ansible without clobbering other existing inheritance relationships. For example, MBS will dynamically manage some inheritance relationships of tags, and you do not want Ansible to fight MBS.

To declare inheritance relationships with finer granularity, you may use the koji_tag_inheritance module.

- name: set devtoolset-7 as a parent of ceph nautilus
  koji_tag_inheritance:
    parent_tag: sclo7-devtoolset-7-rh-release
    child_tag: storage7-ceph-nautilus-el7-build
    priority: 25

This will only mange that single parent-child relationship between the two tags, and it will not delete any other inheritance relationships.

Another approach is to have MBS operate on a dedicated "-modules" tag and then inherit from that, so that you do not have to use this Ansible module.

koji_tag_packages

The koji_tag module (above) is all-or-nothing when it comes to managing packages. When you set packages with koji_tag, the module will delete any packages that are not defined there.

In some cases you may want to declare some packages within Ansible without clobbering existing packages. For example, if you have a separate tool that might add or remove packages from tags dynamically, you do not want Ansible to fight that other tooling.

To declare packages with finer granularity, you may use the koji_tag_packages module.

- name: ensure ceph packages are present and ownership set
  koji_tag_packages:
    tag: ceph-3.1-rhel-7
    packages:
      kdreyer:
        - ceph
      aschoen:
        - ansible
    state: present

- name: ensure koji packages are absent
  koji_tag_packages:
    tag: ceph-3.1-rhel-7
    packages:
      kdreyer:
        - koji
    state: absent

This will only mange the packages defined and will not change any other packages on the tag.

koji_call

The koji_call module allows you to send raw RPCs to the Koji hub. This exposes the entire Koji API to you directly.

Why would you use this module instead of the higher level modules like koji_tag, koji_target, etc? This koji_call module has two main uses-cases:

  1. You may want to do something that the higher level modules do not yet support. It can be easier to use this module to quickly prototype out your ideas for what actions you need, and then write the Python code to do it in a better way later. If you find that you need to use koji_call to achieve functionality that is not yet present in the other koji-ansible modules, please file a Feature Request issue in GitHub with your use case.
  2. You want to write some tests that verify Koji's data at a very low level. For example, you may want to write an integration test to verify that you've set up your Koji configuration in the way you expect.

Note that this module will always report "changed: true" every time, because it simply sends the RPC to the Koji Hub on every ansible run. This module cannot understand if your chosen RPC actually "changes" anything.

- name: make a raw API call:
  koji_call:
    name: getTag
    args: [f34-build]
  register: call_result

- debug:
    var: call_result.data

This will print the tag information for the Fedora 34 -build tag. It is similar to running koji taginfo f34-build on the command-line.

Koji profiles

You must tell koji-ansible which Koji client profile to use.

Here is an example of setting a profile explicitly on the task:

- name: Create a koji tag for the ceph product
  koji_tag:
    koji: kojidev
    name: ceph-3.1-rhel-7
    arches: x86_64
    state: present

The koji: kojidev setting means Ansible will search ~/.koji/config.d/*.conf and /etc/koji.conf.d/*.conf for the [kojidev] config section and perform the tag management on that Koji hub listed there.

To avoid specifying this koji: argument on every task, you can set the KOJI_PROFILE environment variable when running ansible-playbook. koji-ansible will fall back to using KOJI_PROFILE for the tasks that have no explicit koji: argument:

KOJI_PROFILE=kojidev ansible-playbook -v my-koji-playbook.yaml

Installing from Ansible Galaxy

We distribute koji-ansible through the Ansible Galaxy.

If you are using Ansible 2.9 or greater, you can install koji-ansible like so:

ansible-galaxy collection install ktdreyer.koji_ansible

This will install the latest Git snapshot automatically. Use --force upgrade your installed version to the latest version.

Using this Ansible Galaxy Collection inside a role

Here is an example of a simple playbook and role that uses this collection. playbook.yml calls one role named my-koji-project:

top
├── playbook.yml
└── roles
    └── my-koji-project
        ├── collections
        │   └── requirements.yml
        ├── meta
        │   └── main.yml
        └── tasks
            └── main.yml

The playbook.yml file is a small playbook that simply loads our role:

- name: Test a role that uses koji-ansible
  hosts: localhost
  gather_facts: false
  roles:
   - my-koji-project

The roles/my-koji-project/collections/requirements.yml file should require this collection (and a specific version, as described above):

collections:
- name: ktdreyer.koji_ansible

The roles/my-koji-project/meta/main.yml file tells Ansible to load any custom modules in this role from the ktdreyer.koji_ansible collection namespace:

collections:
- ktdreyer.koji_ansible

Lastly you can add your role's tasks as usual to roles/my-koji-project/tasks/main.yml:

- name: create the "my-product-1.0" tag
  koji_tag:
    name: my-product-1.0

Role and collection dependencies must be installed separately. This is true even if the dependencies are defined in the same requirements.yml.

For role dependencies:

ansible-galaxy install -r requirements.yml

For collection dependencies:

ansible-galaxy collection install -r requirements.yml

Running from a Git clone

Instead of using the Ansible Collection tarball, you can use this project directly from a Git clone. This is useful when hacking on the code.

These modules import common_koji from the module_utils directory.

One easy way to arrange your Ansible files is to symlink the library and module_utils directories into the directory with your playbook.

For example, if you have a koji.yml playbook that you run with ansible-playbook, it should live alongside these library and module_utils directories:

top
├── koji.yml
├── module_utils
└── library

and you should run the playbook like so:

ansible-playbook koji.yml

Investigating changes that happened outside Ansible

Koji tracks a history of everything in its database. You can view this history with the koji list-history and koji list-tag-history sub-commands.

For example, let's say that you wake up one morning to find that your Ansible playbook for your tags no longer matches up with what is configured live in Koji. Did someone else on your team make a change with the CLI without editing the playbook or notifying you? Who did it, and when? Use koji list-history --tag=my-tag to see the entire list of changes for your tag in the database. After a friendly chat with the person who made the change, you can work together to record the change within your Ansible playbook so your sources of truth remain consistent.

Generating a playbook from a live Koji instance

Do you have a Koji hub that has many tags, targets, and other settings that were crafted by hand over the years? You can use the ./utils/generate-playbook script to query your Koji hub and write an Ansible playbook that describes some or all of the tags. You can then store this YAML in Git. Other things beyond tags and targets (like content generators or users) are not yet supported.

This generate-playbook utility's output may not be the most elegant way to manage your Koji tags. There will be lots of repetition, because it will not use any Ansible variables, etc. The purpose of this utility is simply to help you get up and running quickly with koji-ansible.

TODO

  • Unit tests

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