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Chapter 1. Installing optional RPM packages
When you install MicroShift, you can add optional RPM packages to help manage your deployments. Examples of optional RPMs include those designed to expand your network, add and manage Operators, and manage applications. Use the following procedures to add the packages that you need.
1.1. Installing the GitOps Argo CD manifests from an RPM package
You can use a lightweight version of Red Hat OpenShift GitOps with MicroShift to help manage your applications by installing the microshift-gitops RPM package.
The microshift-gitops RPM package includes the necessary manifests to run core Argo CD.
The Argo CD web console is not available on MicroShift. This process installs basic GitOps functions.
Prerequisites
- You installed MicroShift version 4.16 or later.
- You configured 250MB RAM of additional storage.
Procedure
Enable the GitOps repository with the subscription manager by running the following command:
sudo subscription-manager repos --enable=gitops-1.16-for-rhel-9-$(uname -m)-rpms
$ sudo subscription-manager repos --enable=gitops-1.16-for-rhel-9-$(uname -m)-rpmsCopy to Clipboard Copied! Toggle word wrap Toggle overflow Install the MicroShift GitOps package by running the following command:
sudo dnf install -y microshift-gitops
$ sudo dnf install -y microshift-gitopsCopy to Clipboard Copied! Toggle word wrap Toggle overflow To deploy Argo CD pods, restart MicroShift by running the following command:
sudo systemctl restart microshift
$ sudo systemctl restart microshiftCopy to Clipboard Copied! Toggle word wrap Toggle overflow
Verification
Verify that your pods are running by entering the following command:
oc get pods -n openshift-gitops
$ oc get pods -n openshift-gitopsCopy to Clipboard Copied! Toggle word wrap Toggle overflow Example output
NAME READY STATUS RESTARTS AGE argocd-application-controller-0 1/1 Running 0 4m11s argocd-redis-56844446bc-dzmhf 1/1 Running 0 4m12s argocd-repo-server-57b4f896cf-7qk8l 1/1 Running 0 4m12s
NAME READY STATUS RESTARTS AGE argocd-application-controller-0 1/1 Running 0 4m11s argocd-redis-56844446bc-dzmhf 1/1 Running 0 4m12s argocd-repo-server-57b4f896cf-7qk8l 1/1 Running 0 4m12sCopy to Clipboard Copied! Toggle word wrap Toggle overflow
1.2. Installing the multiple networks plugin
You can install the MicroShift Multus Container Network Interface (CNI) plugin alongside a new MicroShift installation. If you want to attach additional networks to a pod for high-performance network configurations, install the microshift-multus RPM package.
Uninstalling the MicroShift Multus CNI is not supported.
Procedure
Install the Multus RPM package by running the following command:
sudo dnf install microshift-multus
$ sudo dnf install microshift-multusCopy to Clipboard Copied! Toggle word wrap Toggle overflow TipIf you create your custom resources (CRs) while you are completing your installation of MicroShift, you can avoid restarting the service to apply them.
Next steps
- Continue with your new MicroShift installation, including any add-ons.
- Create the custom resources (CRs) needed for your MicroShift Multus CNI plugin.
- Configure other networking CNIs as needed.
- After you have finished installing all of the RPMs that you want to include, start the MicroShift service. The MicroShift Multus CNI plugin is automatically deployed.
1.3. Installing the Operator Lifecycle Manager (OLM) from an RPM package
When you install MicroShift, the Operator Lifecycle Manager (OLM) package is not installed by default. You can install the OLM on your MicroShift instance by using an RPM package. OLM helps you install, update, and manage the lifecycle of Kubernetes native applications (Operators) and their associated services running in each MicroShift node.
Procedure
Install the OLM package by running the following command:
sudo dnf install microshift-olm
$ sudo dnf install microshift-olmCopy to Clipboard Copied! Toggle word wrap Toggle overflow To apply the manifest from the package to an active node, run the following command:
sudo systemctl restart microshift
$ sudo systemctl restart microshiftCopy to Clipboard Copied! Toggle word wrap Toggle overflow
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