Chapter 2. Using Argo Rollouts for progressive deployment delivery

Procedure

1. Log in to the OpenShift Container Platform web console as a cluster administrator.
2. In the Administrator perspective, click Operators Installed Operators.
3. Create or select the project where you want to create and configure a RolloutManager custom resource (CR) from the Project drop-down menu.
4. Select Red Hat OpenShift GitOps from the installed operators.
5. In the Details tab, under the Provided APIs section, click Create instance in the RolloutManager pane.

6. On the Create RolloutManager page, select the YAML view and use the default YAML or edit it according to your requirements:

   Example: RolloutManager CR

   apiVersion: argoproj.io/v1alpha1
   kind: RolloutManager
   metadata:
     name: argo-rollout
     namespace: openshift-gitops
   spec: {}

7. Click Create.
8. In the RolloutManager tab, under the RolloutManagers section, verify that the Status field of the RolloutManager instance shows as Phase: Available.

9. In the left navigation pane, verify the creation of the namespace-scoped supporting resources:

   • Click Workloads Deployments to verify that the argo-rollouts deployment is available with the Status showing as 1 of 1 pods running.
   • Click Workloads Secrets to verify that the argo-rollouts-notification-secret secret is available.
   • Click Networking Services to verify that the argo-rollouts-metrics service is available.
   • Click User Management Roles to verify that the argo-rollouts role and argo-rollouts-aggregate-to-admin, argo-rollouts-aggregate-to-edit, and argo-rollouts-aggregate-to-view cluster roles are available.
   • Click User Management RoleBindings to verify that the argo-rollouts role binding is available.

Procedure

1. Log in to the OpenShift Container Platform web console as a cluster administrator.
2. In the Administrator perspective, click Operators Installed Operators.
3. Click the Project drop-down menu and select the project that contains the RolloutManager CR.
4. Select Red Hat OpenShift GitOps from the installed operators.
5. Click the RolloutManager tab to find RolloutManager instances under the RolloutManagers section.
6. Click the instance.
7. Click Actions Delete RolloutManager from the drop-down menu, and click Delete to confirm in the dialog box.
8. In the RolloutManager tab, under the RolloutManagers section, verify that the RolloutManager instance is not available anymore.

9. In the left navigation pane, verify the deletion of the namespace-scoped supporting resources:

   • Click Workloads Deployments to verify that the argo-rollouts deployment is deleted.
   • Click Workloads Secrets to verify that the argo-rollouts-notification-secret secret is deleted.
   • Click Networking Services to verify that the argo-rollouts-metrics service is deleted.
   • Click User Management Roles to verify that the argo-rollouts role and argo-rollouts-aggregate-to-admin, argo-rollouts-aggregate-to-edit, and argo-rollouts-aggregate-to-view cluster roles are deleted.
   • Click User Management RoleBindings to verify that the argo-rollouts role binding is deleted.

Procedure

1. Download the latest version of the Argo Rollouts CLI binary, kubectl-argo-rollouts, by running the following command:

   $ curl -LO https://github.com/argoproj/argo-rollouts/releases/latest/download/kubectl-argo-rollouts-linux-amd64

2. Ensure that the kubectl-argo-rollouts binary is executable by running the following command:

   $ chmod +x ./kubectl-argo-rollouts-linux-amd64

3. Move the kubectl-argo-rollouts binary to the system path by running the following command:

   # mv ./kubectl-argo-rollouts-linux-amd64 /usr/local/bin/kubectl-argo-rollouts

   Important

   Ensure that you have superuser privileges to run this command.

4. Verify that the plugin is installed correctly by running the following command and receiving the similar output:

   $ oc argo rollouts version

   Example output

   kubectl-argo-rollouts: v1.6.6+737ca89
     BuildDate: 2024-02-13T15:39:31Z 1
     GitCommit: 737ca89b42e4791e96e05b438c2b8540737a2a1a
     GitTreeState: clean
     GoVersion: go1.20.14 2
     Compiler: gc
     Platform: linux/amd64 3

   1

   The build date information of the Argo Rollouts binary.

   2

   The version of the Go language used for building the Argo Rollouts binary.

   3

   The platform used for building the Argo Rollouts binary.

Procedure

1. Log in to the OpenShift Container Platform web console.
2. In the Administrator perspective of the web console, click Operators Installed Operators.
3. Select Red Hat OpenShift GitOps from the installed Operators list and click the Argo CD tab.
4. Select the Argo CD instance in the Argo CD tab under the openshift-gitops namespace.

5. Click YAML and add the following configuration to configure the Argo Rollouts UI:

   Example enabling Argo Rollouts UI in the Argo CD CR

   apiVersion: argoproj.io/v1beta1
   kind: ArgoCD
   metadata:
     name: argocd
   spec:
     server:
       enableRolloutsUI: true 1

   1

   Set this value to true to configure the enableRolloutsUI field.

6. Click Save.
7. In the Administrator perspective of the web console, navigate to the menu OpenShift GitOps Cluster Argo CD. The login page of the Argo CD Web UI is displayed in a new window.

8. To access the Argo Rollouts UI in the Argo CD Web UI, configure a sample application that includes the Argo Rollouts resources.

   Note

   The enableRolloutsUI field restarts the Argo CD server deployment pod, so it takes a few seconds for the Argo Rollouts extension to enable in the Argo CD Web UI.