OpenShift Image and ImageStream Operations

From NovaOrdis Knowledge Base
Jump to navigation Jump to search

Internal

Overview

Image Operations

Image Stream Operations

Get Image Streams Available to a Project

oc project <project-name>
oc get imagestreams
oc get is
oc get is -n openshift

Get Information about an Image Stream

oc describe is jboss-eap64-openshift

Create an Image Stream

Create an Individual Image Stream

This command fetches the latest version of an image from a remote repository and updates the image stream tag if it does not match the previous value. It is idempotent, running the command multiple times will not create duplicate entries. When importing an image, only the image metadata is copied, not the image contents. If the image stream does not exist, the image stream is created if --confirm is provided.

oc import-image <imagestream-name>[:tag] \
   --from <registry/image> [--confirm]
oc import-image local-redhat-openjdk-18/openjdk18-openshift \
   --from=registry.access.redhat.com/redhat-openjdk-18/openjdk18-openshift --confirm

Import Image Streams in Bulk

The following procedure will create a set of image streams in the "openshift" project. An example of image stream definition file is available at https://raw.githubusercontent.com/jboss-openshift/application-templates/master/jboss-image-streams.json. A version is also available here: OpenShift JBoss ImageStream Definition Example.

oc login -u system:admin
oc create -f ./jboss-image-streams.json -n openshift

The output is similar to:

imagestream "jboss-webserver31-tomcat7-openshift" created
imagestream "jboss-webserver31-tomcat8-openshift" created
imagestream "jboss-eap71-openshift" created
imagestream "jboss-decisionserver64-openshift" created
imagestream "jboss-processserver64-openshift" created
imagestream "jboss-datagrid71-openshift" created
imagestream "jboss-datagrid65-client-openshift" created
imagestream "jboss-datagrid71-client-openshift" created
imagestream "jboss-datavirt63-driver-openshift" created
imagestream "jboss-amq-63" created
imagestream "redhat-sso71-openshift" created
Error from server (AlreadyExists): imagestreams "jboss-webserver30-tomcat7-openshift" already exists
Error from server (AlreadyExists): imagestreams "jboss-webserver30-tomcat8-openshift" already exists
Error from server (AlreadyExists): imagestreams "jboss-eap64-openshift" already exists
Error from server (AlreadyExists): imagestreams "jboss-eap70-openshift" already exists 
Error from server (AlreadyExists): imagestreams "jboss-decisionserver62-openshift" already exists
Error from server (AlreadyExists): imagestreams "jboss-decisionserver63-openshift" already exists
Error from server (AlreadyExists): imagestreams "jboss-processserver63-openshift" already exists
Error from server (AlreadyExists): imagestreams "jboss-datagrid65-openshift" already exists
Error from server (AlreadyExists): imagestreams "jboss-datavirt63-openshift" already exists
Error from server (AlreadyExists): imagestreams "jboss-amq-62" already exists
Error from server (AlreadyExists): imagestreams "redhat-sso70-openshift" already exists
Error from server (AlreadyExists): imagestreams "redhat-openjdk18-openshift" already exists