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Chapter 13. Reference
13.1. Artifact Repository Mirrors
A repository in Maven holds build artifacts and dependencies of various types (all the project jars, library jar, plugins or any other project specific artifacts). It also specifies locations from where to download artifacts from, while performing the S2I build. Besides using central repositories, it is a common practice for organizations to deploy a local custom repository (mirror).
Benefits of using a mirror are:
- Availability of a synchronized mirror, which is geographically closer and faster.
- Ability to have greater control over the repository content.
- Possibility to share artifacts across different teams (developers, CI), without the need to rely on public servers and repositories.
- Improved build times.
Often, a repository manager can serve as local cache to a mirror. Assuming that the repository manager is already deployed and reachable externally at http://10.0.0.1:8080/repository/internal/, the S2I build can then use this manager by supplying the MAVEN_MIRROR_URL environment variable to the build configuration of the application as follows:
Identify the name of the build configuration to apply
MAVEN_MIRROR_URLvariable against:oc get bc -o name buildconfig/jdg
oc get bc -o name buildconfig/jdgCopy to Clipboard Copied! Toggle word wrap Toggle overflow Update build configuration of
jdgwith aMAVEN_MIRROR_URLenvironment variableoc env bc/jdg MAVEN_MIRROR_URL="http://10.0.0.1:8080/repository/internal/" buildconfig "jdg" updated
oc env bc/jdg MAVEN_MIRROR_URL="http://10.0.0.1:8080/repository/internal/" buildconfig "jdg" updatedCopy to Clipboard Copied! Toggle word wrap Toggle overflow Verify the setting
oc env bc/jdg --list # buildconfigs jdg MAVEN_MIRROR_URL=http://10.0.0.1:8080/repository/internal/
oc env bc/jdg --list # buildconfigs jdg MAVEN_MIRROR_URL=http://10.0.0.1:8080/repository/internal/Copy to Clipboard Copied! Toggle word wrap Toggle overflow - Schedule new build of the application
During application build, you will notice that Maven dependencies are pulled from the repository manager, instead of the default public repositories. Also, after the build is finished, you will see that the mirror is filled with all the dependencies that were retrieved and used during the build.
13.2. JBoss Data Grid for OpenShift Logs
In addition to viewing the OpenShift logs, you can troubleshoot a running JBoss Data Grid for OpenShift Image container by viewing its logs. These are outputted to the container’s standard out, and are accessible with the following command:
oc logs -f <pod_name> <container_name>
$ oc logs -f <pod_name> <container_name>By default, the OpenShift JBoss Data Grid for OpenShift Image does not have a file log handler configured. Logs are only sent to the container’s standard out.
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