Chapter 9. Updating a cluster in a disconnected environment

Procedure

1. Navigate to the OpenShift Container Platform downloads page on the Red Hat Customer Portal.
2. Select the appropriate version in the Version drop-down menu.
3. Click Download Now next to the OpenShift v4.8 Linux Client entry and save the file.

4. Unpack the archive:

   $ tar xvzf <file>

5. Place the oc binary in a directory that is on your PATH.

   To check your PATH, execute the following command:

   $ echo $PATH

Procedure

1. Navigate to the OpenShift Container Platform downloads page on the Red Hat Customer Portal.
2. Select the appropriate version in the Version drop-down menu.
3. Click Download Now next to the OpenShift v4.8 Windows Client entry and save the file.
4. Unzip the archive with a ZIP program.

5. Move the oc binary to a directory that is on your PATH.

   To check your PATH, open the command prompt and execute the following command:

   C:\> path

Procedure

1. Navigate to the OpenShift Container Platform downloads page on the Red Hat Customer Portal.
2. Select the appropriate version in the Version drop-down menu.
3. Click Download Now next to the OpenShift v4.8 MacOSX Client entry and save the file.
4. Unpack and unzip the archive.

5. Move the oc binary to a directory on your PATH.

   To check your PATH, open a terminal and execute the following command:

   $ echo $PATH

1. Download your registry.redhat.io pull secret from the Red Hat OpenShift Cluster Manager and save it to a .json file.

2. Generate the base64-encoded user name and password or token for your mirror registry:

   $ echo -n '<user_name>:<password>' | base64 -w0 1
   BGVtbYk3ZHAtqXs=

   1

   For <user_name> and <password>, specify the user name and password that you configured for your registry.

3. Make a copy of your pull secret in JSON format:

   $ cat ./pull-secret.text | jq .  > <path>/<pull_secret_file_in_json>1

   1

   Specify the path to the folder to store the pull secret in and a name for the JSON file that you create.

4. Save the file either as ~/.docker/config.json or $XDG_RUNTIME_DIR/containers/auth.json.

   The contents of the file resemble the following example:

   {
     "auths": {
       "cloud.openshift.com": {
         "auth": "b3BlbnNo...",
         "email": "you@example.com"
       },
       "quay.io": {
         "auth": "b3BlbnNo...",
         "email": "you@example.com"
       },
       "registry.connect.redhat.com": {
         "auth": "NTE3Njg5Nj...",
         "email": "you@example.com"
       },
       "registry.redhat.io": {
         "auth": "NTE3Njg5Nj...",
         "email": "you@example.com"
       }
     }
   }

5. Edit the new file and add a section that describes your registry to it:

     "auths": {
       "<mirror_registry>": { 1
         "auth": "<credentials>", 2
         "email": "you@example.com"
       }
     },

   1

   For <mirror_registry>, specify the registry domain name, and optionally the port, that your mirror registry uses to serve content. For example, registry.example.com or registry.example.com:8443

   2

   For <credentials>, specify the base64-encoded user name and password for the mirror registry.

   The file resembles the following example:

   {
     "auths": {
       "registry.example.com": {
         "auth": "BGVtbYk3ZHAtqXs=",
         "email": "you@example.com"
       },
       "cloud.openshift.com": {
         "auth": "b3BlbnNo...",
         "email": "you@example.com"
       },
       "quay.io": {
         "auth": "b3BlbnNo...",
         "email": "you@example.com"
       },
       "registry.connect.redhat.com": {
         "auth": "NTE3Njg5Nj...",
         "email": "you@example.com"
       },
       "registry.redhat.io": {
         "auth": "NTE3Njg5Nj...",
         "email": "you@example.com"
       }
     }
   }

Procedure

1. In the web console, click Operators OperatorHub.

   Note

   Enter Update Service into the Filter by keyword…​ field to find the Operator faster.

2. Choose OpenShift Update Service from the list of available Operators, and click Install.

   1. Channel v1 is selected as the Update Channel since it is the only channel available in this release.
   2. Select A specific namespace on the cluster under Installation Mode.
   3. Select a namespace for Installed Namespace or accept the recommended namespace openshift-update-service.

   4. Select an Approval Strategy:

      • The Automatic strategy allows Operator Lifecycle Manager (OLM) to automatically update the Operator when a new version is available.
      • The Manual strategy requires a cluster administrator to approve the Operator update.
   5. Click Install.
3. Verify that the OpenShift Update Service Operator is installed by switching to the Operators Installed Operators page.
4. Ensure that OpenShift Update Service is listed in the selected namespace with a Status of Succeeded.

Procedure

1. Create a namespace for the OpenShift Update Service Operator:

   1. Create a Namespace object YAML file, for example, update-service-namespace.yaml, for the OpenShift Update Service Operator:

      apiVersion: v1
      kind: Namespace
      metadata:
        name: openshift-update-service
        annotations:
          openshift.io/node-selector: ""
        labels:
          openshift.io/cluster-monitoring: "true" 1

      1

      Set the openshift.io/cluster-monitoring label to enable Operator-recommended cluster monitoring on this namespace.

   2. Create the namespace:

      $ oc create -f <filename>.yaml

      For example:

      $ oc create -f update-service-namespace.yaml

2. Install the OpenShift Update Service Operator by creating the following objects:

   1. Create an OperatorGroup object YAML file, for example, update-service-operator-group.yaml:

      apiVersion: operators.coreos.com/v1
      kind: OperatorGroup
      metadata:
        name: update-service-operator-group
      spec:
        targetNamespaces:
        - openshift-update-service

   2. Create an OperatorGroup object:

      $ oc -n openshift-update-service create -f <filename>.yaml

      For example:

      $ oc -n openshift-update-service create -f update-service-operator-group.yaml

   3. Create a Subscription object YAML file, for example, update-service-subscription.yaml:

      Example Subscription

      apiVersion: operators.coreos.com/v1alpha1
      kind: Subscription
      metadata:
        name: update-service-subscription
      spec:
        channel: v1
        installPlanApproval: "Automatic"
        source: "redhat-operators" 1
        sourceNamespace: "openshift-marketplace"
        name: "cincinnati-operator"

      1

      Specify the name of the catalog source that provides the Operator. For clusters that do not use a custom Operator Lifecycle Manager (OLM), specify redhat-operators. If your OpenShift Container Platform cluster is installed in a disconnected environment, specify the name of the CatalogSource object created when you configured Operator Lifecycle Manager (OLM).

   4. Create the Subscription object:

      $ oc create -f <filename>.yaml

      For example:

      $ oc -n openshift-update-service create -f update-service-subscription.yaml

      The OpenShift Update Service Operator is installed to the openshift-update-service namespace and targets the openshift-update-service namespace.

3. Verify the Operator installation:

   $ oc -n openshift-update-service get clusterserviceversions

   Example output

   NAME                             DISPLAY                    VERSION   REPLACES   PHASE
   update-service-operator.v4.6.0   OpenShift Update Service   4.6.0                Succeeded
   ...

   If the OpenShift Update Service Operator is listed, the installation was successful. The version number might be different than shown.

Procedure

1. In the web console, click Operators Installed Operators.
2. Choose OpenShift Update Service from the list of installed Operators.
3. Click the Update Service tab.
4. Click Create UpdateService.
5. Enter a name in the Name field, for example, service.
6. Enter the local pullspec in the Graph Data Image field to the graph-data container image created in "Creating the OpenShift Update Service graph data container image", for example, registry.example.com/openshift/graph-data:latest.
7. In the Releases field, enter the local registry and repository created to contain the release images in "Mirroring the OpenShift Container Platform image repository", for example, registry.example.com/ocp4/openshift4-release-images.
8. Enter 2 in the Replicas field.
9. Click Create to create the OpenShift Update Service application.

10. Verify the OpenShift Update Service application:

    • From the UpdateServices list in the Update Service tab, click the Update Service application just created.
    • Click the Resources tab.
    • Verify each application resource has a status of Created.

Procedure

1. Configure the OpenShift Update Service target namespace, for example, openshift-update-service:

   $ NAMESPACE=openshift-update-service

   The namespace must match the targetNamespaces value from the operator group.

2. Configure the name of the OpenShift Update Service application, for example, service:

   $ NAME=service

3. Configure the local registry and repository for the release images as configured in "Mirroring the OpenShift Container Platform image repository", for example, registry.example.com/ocp4/openshift4-release-images:

   $ RELEASE_IMAGES=registry.example.com/ocp4/openshift4-release-images

4. Set the local pullspec for the graph-data image to the graph-data container image created in "Creating the OpenShift Update Service graph data container image", for example, registry.example.com/openshift/graph-data:latest:

   $ GRAPH_DATA_IMAGE=registry.example.com/openshift/graph-data:latest

5. Create an OpenShift Update Service application object:

   $ oc -n "${NAMESPACE}" create -f - <<EOF
   apiVersion: updateservice.operator.openshift.io/v1
   kind: UpdateService
   metadata:
     name: ${NAME}
   spec:
     replicas: 2
     releases: ${RELEASE_IMAGES}
     graphDataImage: ${GRAPH_DATA_IMAGE}
   EOF

6. Verify the OpenShift Update Service application:

   1. Use the following command to obtain a policy engine route:

      $ while sleep 1; do POLICY_ENGINE_GRAPH_URI="$(oc -n "${NAMESPACE}" get -o jsonpath='{.status.policyEngineURI}/api/upgrades_info/v1/graph{"\n"}' updateservice "${NAME}")"; SCHEME="${POLICY_ENGINE_GRAPH_URI%%:*}"; if test "${SCHEME}" = http -o "${SCHEME}" = https; then break; fi; done

      You might need to poll until the command succeeds.

   2. Retrieve a graph from the policy engine. Be sure to specify a valid version for channel. For example, if running in OpenShift Container Platform 4.8, use stable-4.8:

      $ while sleep 10; do HTTP_CODE="$(curl --header Accept:application/json --output /dev/stderr --write-out "%{http_code}" "${POLICY_ENGINE_GRAPH_URI}?channel=stable-4.6")"; if test "${HTTP_CODE}" -eq 200; then break; fi; echo "${HTTP_CODE}"; done

      This polls until the graph request succeeds; however, the resulting graph might be empty depending on which release images you have mirrored.

Procedure

1. In the web console, click Operators Installed Operators.
2. Choose OpenShift Update Service from the list of installed Operators.
3. Click the Update Service tab.
4. From the list of installed OpenShift Update Service applications, select the application to be deleted and then click Delete UpdateService.
5. From the Delete UpdateService? confirmation dialog, click Delete to confirm the deletion.

Procedure

1. Get the OpenShift Update Service application name using the namespace the OpenShift Update Service application was created in, for example, openshift-update-service:

   $ oc get updateservice -n openshift-update-service

   Example output

   NAME      AGE
   service   6s

2. Delete the OpenShift Update Service application using the NAME value from the previous step and the namespace the OpenShift Update Service application was created in, for example, openshift-update-service:

   $ oc delete updateservice service -n openshift-update-service

   Example output

   updateservice.updateservice.operator.openshift.io "service" deleted

Procedure

1. In the web console, click Operators Installed Operators.
2. Select OpenShift Update Service from the list of installed Operators and click Uninstall Operator.
3. From the Uninstall Operator? confirmation dialog, click Uninstall to confirm the uninstallation.

Procedure

1. Change to the project containing the OpenShift Update Service Operator, for example, openshift-update-service:

   $ oc project openshift-update-service

   Example output

   Now using project "openshift-update-service" on server "https://example.com:6443".

2. Get the name of the OpenShift Update Service Operator operator group:

   $ oc get operatorgroup

   Example output

   NAME                             AGE
   openshift-update-service-fprx2   4m41s

3. Delete the operator group, for example, openshift-update-service-fprx2:

   $ oc delete operatorgroup openshift-update-service-fprx2

   Example output

   operatorgroup.operators.coreos.com "openshift-update-service-fprx2" deleted

4. Get the name of the OpenShift Update Service Operator subscription:

   $ oc get subscription

   Example output

   NAME                      PACKAGE                   SOURCE                        CHANNEL
   update-service-operator   update-service-operator   updateservice-index-catalog   v1

5. Using the Name value from the previous step, check the current version of the subscribed OpenShift Update Service Operator in the currentCSV field:

   $ oc get subscription update-service-operator -o yaml | grep " currentCSV"

   Example output

     currentCSV: update-service-operator.v0.0.1

6. Delete the subscription, for example, update-service-operator:

   $ oc delete subscription update-service-operator

   Example output

   subscription.operators.coreos.com "update-service-operator" deleted

7. Delete the CSV for the OpenShift Update Service Operator using the currentCSV value from the previous step:

   $ oc delete clusterserviceversion update-service-operator.v0.0.1

   Example output

   clusterserviceversion.operators.coreos.com "update-service-operator.v0.0.1" deleted