When a bundle update is available, an alert is displayed in the Manage Jenkins screen.
You can also check for updates on the CloudBees Configuration as Code export and update screen on the Bundle update tab.
To check for bundle updates:
Ensure you are signed in as a user with the Overall/Manage permission.
This option is available to users with the Overall/Manage permission and it lets users with the Administrator role delegate this task. For more information, refer to Delegating Administration.
Navigate to the controller.
Select Manage Jenkins in the left pane.
Select CloudBees Configuration as Code export and update.
Select the Bundle update tab. A blue bell appears next to the tab if an update is detected.
Select Check for Updates.
If a controller is configured with a bundle using the
-Dcore.casc.config.bundle=/path/to/casc-bundleJava system property, a bundle update is detected only when the
versionattribute in the
bundle.yamlfile has been incremented. If the
versionattribute is not incremented, the bundle update is not detected and cannot be applied.Figure 2. Check for updates
If bundle updates are available, you can select See the differences with the current version to view the differences between the current bundle and the new bundle.Figure 3. Bundle update file differences
Select Back to Bundle update to return to the Bundle update tab.
Select one of the following options to apply the new bundle:
Safe Restart: Performs a restart and applies the new bundle. CloudBees recommends this option because you can determine an appropriate time to restart and apply the updated bundle.
Reload Configuration: Applies the new bundle without a restart. This only reloads the bundle sections with changes (with new, updated, or deleted files). If there are changes to the
variables.yamlfile, a full reload is performed.
The Reload Configuration: option is called a "hot reload". For more information on when a hot reload is appropriate, refer to Using hot reload on a configuration bundle.Figure 4. New bundle version
You can optionally select Force Reload to reapply a bundle that is already installed. This option can be used to reset changes in the configurations managed by CasC. The new configuration is not going to be removed.
If you want to view the update log, refer to Viewing the controller update log.
After the initial configuration on startup, a background process automatically checks for bundle updates every twenty minutes.
Optionally, you can customize this by setting the Java system property
com.cloudbees.opscenter.client.casc.ConfigurationUpdaterTask.recurrencePeriod to the desired interval, in minutes.
For example, to check for updates every five minutes, use the following startup command:
java -Dcore.casc.config.bundle=$JENKINS_HOME/casc-bundle-link.yml \ -Dcom.cloudbees.opscenter.client.casc.ConfigurationUpdaterTask.recurrencePeriod=5 \ -jar jenkins.war
Using CasC gives you great power and flexibility, which introduces the possibility for errors that could impact your installation. Please review the information below to help guide you as you evolve your CasC bundle.
If a controller is configured with a bundle using the
-Dcore.casc.config.bundle=/path/to/casc-bundle Java system property, a bundle update is detected only when the
version attribute in the
bundle.yaml file has been incremented.
version attribute is not incremented, the bundle update is not detected, and cannot be applied.
You can install CloudBees Assurance Program (CAP) Tier 1 and Tier 2 plugins by adding the plugins to the
You can also install non-CAP or Tier 3 plugins to the controller by adding the plugins to the
To get the list of CloudBees Tier 1 and Tier 2 plugins:
Navigate to CloudBees CI Plugins.
To verify that your plugin is a CAP Tier 1 or Tier 2 plugin, you can either:
Search for a specific plugin and filter based on Verified or Proprietary (Tier 1) or Compatible (Tier 2).
Scroll to the bottom of the page and select All Tier 1 plugins to browse all Tier 1 plugins and then filter by Tier.
For more information on the CAP and how CloudBees classifies plugins, refer to CloudBees plugin support policies.
There are no "delete/uninstall” operations when using CasC, and you cannot uninstall plugins by removing the plugins from the
To uninstall a plugin:
Uninstall the plugin in the UI.
Before restarting, remove the plugin IDs from the
plugins.yamlfile. Otherwise, the plugins will be reinstalled.
You can install non-CAP or Tier 3 plugins to the controller by adding the plugin to the
plugins.yaml file and to the
The plugins in this file must be compatible with the set of CAP Tier 1 or Tier 2 plugins in the
plugins.yaml file. A validation of the
plugin-catalog.yaml file runs at startup. If this validation fails, the plugin in the
plugin-catalog.yaml file is not installed and the controller continues with its normal startup, which may lead to other problems. For example, specific configurations in the
jenkins.yaml cannot be applied.
For more information on plugin catalogs, refer to Installing non-CAP plugins with plugin catalogs.
This file can be edited to change or add Jenkins configurations. There are a wide variety of possible combinations, depending on the plugins that are configured as code. This file is managed by the Jenkins LTS - Configuration as Code (JCasC) plugin. Therefore, all Jenkins LTS documentation, reported bugs, community blogs, Gitter chats, etc., apply to this file.
The bulk of the content in this file is defined by the various plugins you have installed with only a small portion of it defined by the Jenkins core itself. However, there are a few general items to consider when editing the file:
Removing a configuration from this file does not remove the configuration from an existing controller or operations center instance.
Adding configurations requires the underlying plugin that the configuration references to be installed. Jenkins startup will fail otherwise.
Backward compatibility depends on the specific plugins that are being configured. If a plugin changes its configuration in an incompatible way, then the controller or the operations center will fail to start until the
jenkins.yamlfile is adapted, or the section in the file that is related to the plugin is removed.
This file may contain data which is tied to a specific CloudBees instance, such as encoded secrets, the operations center connection details, and others, so a
jenkins.yamlis, in general, suitable for a single CloudBees controller instance. This might lead to indecipherable secrets, controller to operations center connection failing, and many more things depending on the specific configuration.
CasC allows you to reload a configuration file without restarting the instance. Since the CasC API plugin manages plugin updates and the plugin catalog, validating a hot reload is a more complex process. A bundle reload is not always possible.
|If plugin upgrades are in the updated bundle, Jenkins must be restarted.|
If a hot reload is possible, the following operations are automatically performed:
Update the plugin catalog.
Install any new plugins.
Call the API on configuration as code to reload the Jenkins configuration.
Configuration bundles that do not include plugin updates can be reloaded without an instance restart. This feature allows you to update Jenkins configurations, install new plugin catalogs, or install new plugins dynamically.