Install SUSE Storage Using Argo CD

Prerequisites

SUSE Storage installation requires authenticated access to SUSE Application Collection. For more details, check authentication guide.

Your workstation: Install the Argo CD CLI.
Kubernetes cluster:
- Ensure that each node fulfills the installation requirements.
- Install Argo CD.
  kubectl create namespace argocd kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/core-install.yaml
  Allow some time for the deployment of Argo CD components in the argocd namespace.

The Longhorn Command Line Tool can be used to check the SUSE Storage environment for potential issues.

Installation

Set the current namespace to argocd.

 kubectl config set-context --current --namespace=argocd

Create the SUSE Storage Application custom resource.

cat > longhorn-application.yaml <<EOF
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: longhorn
  namespace: argocd
spec:
  syncPolicy:
    syncOptions:
      - CreateNamespace=true
  project: default
  sources:
    - chart: longhorn
      repoURL: https://charts.longhorn.io/
      targetRevision: v{{< current-version >}} # Replace with the Longhorn version you'd like to install or upgrade to
      helm:
        values: |
          preUpgradeChecker:
            jobEnabled: false
  destination:
    server: https://kubernetes.default.svc
    namespace: longhorn-system
  # add ignoreDifferences to prevent preserveUnknownFields field from make causing the application to be out of sync
  ignoreDifferences:
    - group: apiextensions.k8s.io
      kind: CustomResourceDefinition
      name: engineimages.longhorn.io
      jsonPointers: ["/spec/preserveUnknownFields"]
    - group: apiextensions.k8s.io
      kind: CustomResourceDefinition
      name: engines.longhorn.io
      jsonPointers: ["/spec/preserveUnknownFields"]
    - group: apiextensions.k8s.io
      kind: CustomResourceDefinition
      name: instancemanagers.longhorn.io
      jsonPointers: ["/spec/preserveUnknownFields"]
    - group: apiextensions.k8s.io
      kind: CustomResourceDefinition
      name: nodes.longhorn.io
      jsonPointers: ["/spec/preserveUnknownFields"]
    - group: apiextensions.k8s.io
      kind: CustomResourceDefinition
      name: replicas.longhorn.io
      jsonPointers: ["/spec/preserveUnknownFields"]
    - group: apiextensions.k8s.io
      kind: CustomResourceDefinition
      name: settings.longhorn.io
      jsonPointers: ["/spec/preserveUnknownFields"]
    - group: apiextensions.k8s.io
      kind: CustomResourceDefinition
      name: volumes.longhorn.io
      jsonPointers: ["/spec/preserveUnknownFields"]
EOF
kubectl apply -f longhorn-application.yaml

Deploy SUSE Storage with the configured settings.
```
 argocd app sync longhorn
```

Verify that SUSE Storage was installed successfully.

 kubectl -n longhorn-system get pod

Example of a successful installation:

 NAME                                                READY   STATUS    RESTARTS   AGE
 longhorn-ui-b7c844b49-w25g5                         1/1     Running   0          2m41s
 longhorn-manager-pzgsp                              1/1     Running   0          2m41s
 longhorn-driver-deployer-6bd59c9f76-lqczw           1/1     Running   0          2m41s
 longhorn-csi-plugin-mbwqz                           2/2     Running   0          100s
 csi-snapshotter-588457fcdf-22bqp                    1/1     Running   0          100s
 csi-snapshotter-588457fcdf-2wd6g                    1/1     Running   0          100s
 csi-provisioner-869bdc4b79-mzrwf                    1/1     Running   0          101s
 csi-provisioner-869bdc4b79-klgfm                    1/1     Running   0          101s
 csi-resizer-6d8cf5f99f-fd2ck                        1/1     Running   0          101s
 csi-provisioner-869bdc4b79-j46rx                    1/1     Running   0          101s
 csi-snapshotter-588457fcdf-bvjdt                    1/1     Running   0          100s
 csi-resizer-6d8cf5f99f-68cw7                        1/1     Running   0          101s
 csi-attacher-7bf4b7f996-df8v6                       1/1     Running   0          101s
 csi-attacher-7bf4b7f996-g9cwc                       1/1     Running   0          101s
 csi-attacher-7bf4b7f996-8l9sw                       1/1     Running   0          101s
 csi-resizer-6d8cf5f99f-smdjw                        1/1     Running   0          101s
 instance-manager-b34d5db1fe1e2d52bcfb308be3166cfc   1/1     Running   0          114s
 engine-image-ei-df38d2e5-cv6nc                      1/1     Running   0          114s

Create an NGINX Ingress controller with basic authentication to access the UI. Authentication to the UI is not enabled by default.
Access the UI.