Tasks management engine for Foreman. Gives you an overview of what's happening/happened in your Foreman instance. A framework for asynchronous tasks in Foreman.
- Website: TheForeman.org
- ServerFault tag: Foreman
- Issues: foreman-tasks Redmine
- Wiki: Foreman wiki
- Community and support: #theforeman for general support, #theforeman-dev for development chat in Freenode
- Mailing lists:
| Foreman Version | Plugin Version |
|---|---|
| >= 1.15 | ~> 0.9.0 |
| >= 1.16 | ~> 0.10.0 |
| >= 1.17 | ~> 0.11.0 |
| >= 1.18 | ~> 0.13.0 |
| >= 1.20 | ~> 0.14.0 |
| >= 1.22 | ~> 0.15.0 |
Please see the Foreman manual for appropriate instructions:
Set up the repo as explained in the link above, then run
# yum install tfm-rubygem-foreman-tasks
Add the following to bundler.d/Gemfile.local.rb in your Foreman installation directory (/usr/share/foreman by default)
$ gem 'foreman-tasks'
Then run bundle install and foreman-rake db:migrate from the same directory. Note that you must start the
dynflow executor (background processor) manually. You can find example service script in
extra/dynflow-executor.example in this repository.
To verify that the installation was successful, go to Foreman, top bar Administer > About and check 'foreman-tasks' shows up in the System Status menu under the Plugins tab. You should also see a 'Tasks' button under the Monitor menu in the top bar.
In the UI, go to /foreman_tasks/tasks. This should give a list of
tasks that were run in the system. It's possible to filter that using
scoped search. Possible searches:
# search all tasks by user
owner.login = admin
# search all tasks on architecture with id 9
resource_type = Architecture and resource_id = 9
Clicking on the action, it should provide more details.
Via API:
curl -k -u admin:changeme\
https://foreman.example.com/foreman_tasks/api/tasks/b346db45-76fd-4217-9247-aac51b5cde4e -H 'Accept: application/json'- Current tasks progress
- Audit: tasks history for resources and users
- Possibility to generate CLI examples
- Locking: connection between task and resource: allows listing tasks for a resource but also allows preventing to run two conflicting tasks on one resource.
- Dynflow integration allowing async processing, workflows definitions etc.
This engine is agnostic on background processing tool and can be used with anything that allows supports some kind of execution hooks.
On the other side, since we started this as part of Katello integration with Dynflow, the dynflow adapters are already there.
Also, since dynflow has no additional dependencies in terms of another database (tested mainly on Postgres), this gem ships the Dynflow setting so that Dynflow can be used directly.
It's turned off by default, but you can turn that on with putting this code somewhere in Rails initialization process. In case of an engine, it would be:
initializer "your_engine.require_dynflow", :before => "foreman_tasks.initialize_dynflow" do |app|
ForemanTasks.dynflow.require!
ForemanTasks.dynflow.config.eager_load_paths << File.join(YourEngine::Engine.root, 'app/lib/actions')
endAdditionally, there are also examples of using Dynflow for async tasks
and auditing included in this repository. To enable them you just need
to set FOREMAN_TASKS_MONKEYS env variable to true
FOREMAN_TASKS_MONKEYS=true bundle exec rails sThe example for async tasks handling is the puppet facts import. Next time puppet imports the facts to Foreman, the task should appear in the tasks list.
The example for auditing features is the architecture model. On every modification, there is a corresponding Dynflow action triggered. This leads to it appearing in the tasks list as well, even there was no async processing involved, but still using the same interface to show the task.
The Dynflow console is accessible on /foreman_tasks/dynflow path.
In development mode, the Dynflow executor is part of the web server
process. However, in production, it's more than suitable to have the
web server process separated from the async executor. Therefore,
Dynflow is set to use external process in production mode by default
(can be changed with ForemanTasks.dynflow.config.remote = false).
The executor process needs to be executed before the web server. You can run it by:
foreman-rake dynflow:executor
Also, there is a possibility to run the executor in daemonized mode
using the dynflow-executor. It expects to be executed from Foreman
rails root directory. See -h for more details and options
Although, the history of tasks has an auditing value, some kinds of tasks can grow up in number quite soon. Therefore there is a mechanism how to clean the tasks, using a rake command. When running without any arguments, the tasks are deleted based on the default parameters defined in the code.
foreman-rake foreman_tasks:cleanup
To see what tasks would be deleted, without actually deleting the records, you can run
foreman-rake foreman_tasks:cleanup NOOP=true
By default, only the actions explicitly defined with expiration time
in the code, will get cleaned. One can configure new actions, or
override the default configuration inside the configuration
config/settings.plugins.d/foreman_tasks.yaml, such as:
:foreman-tasks:
:cleanup:
# the period after witch to delete all the tasks (by default all tasks are not being deleted after some period)
:after: 365d
# per action settings to override the default defined in the actions (cleanup_after method)
:actions:
- :name: Actions::Foreman::Host::ImportFacts
:after: 10d
The foreman_tasks:cleanup script also accepts additional parameters
to specify the search criteria for the cleanup manually:
TASK_SEARCH: scoped search filter (example: 'label = "Actions::Foreman::Host::ImportFacts"')AFTER: delete tasks created afterAFTERperiod. Expected format is a number followed by the time unit (s,h,m,y), such as10dfor 10 days (applicable only when theTASK_SEARCHoption is specified)STATES: comma separated list of task states to touch with the cleanup, by default only stopped tasks are affected (applicable only when theTASK_SEARCHoption is specified)NOOP: set to "true" if the task should not actuall perform the deletion, only report the actions the script would performVERBOSE: set to "true" for more verbose outputBATCH_SIZE: the size of batches the tasks get processed in (1000 by default)
To see the current configuration (what actions get cleaned
automatically and what is their after period), this script can be
used:
foreman-rake foreman_tasks:cleanup:config
The issues are tracked here
TBD - dig into the code for now (happy hacking:)
TBD
GPLv3
Ivan Nečas