Automated install of NetApp Trident using kubectl

Who wasn‘t yet faced the challenge to install NetApp Trident on multiple kubernetes clusters? NetApp provides very good documentation on ReadTheDocs. But you must execute the instruction step by step.

In addition to this documentation, I would like to introduce a way to install trident automatically in any k8s cluster via kubectl.

The following yaml file can be used for this:

---
apiVersion: v1
kind: Pod
metadata:
  name: k8s-trident-installer
  labels:
    app: trident-installer
spec:
  containers:
    - name: installer
      image: fabianborn/k8s-trident-installer:latest
      ports:
        - containerPort: 19811
      volumeMounts:
      - name: kconfig
        mountPath: "/config"
        subPath: kubeconfig
      env:
        - name: DEBUG
          value: "0"
  volumes:
  - name: kconfig
    configMap:
      name: trident-install-kubeconfig

In preparation, the yaml file subPath: kubeconfig must be adapted to the original kubeconfig name.

Example:

ls -la ~/.kube  
total 48
drwxr-xr-x    8 fabian  staff   256  9 Sep 20:41 .
drwxr-xr-x+  74 fabian  staff  2368  9 Sep 22:16 ..
-rw-------    1 fabian  staff  5453  9 Sep 20:41 epicshit-io-kubeconfig

also:

subPath: epicshit-io-kubeconfig

Now the ConfigMap can be created and the yaml file can be applied to the kubernetes cluster.

kubectl create configmap trident-install-kubeconfig --from-file=$KUBECONFIG

kubectl apply -f k8s-trident-installer.yaml

During the installation you tail the log of the container with

kubectl logs --follow k8s-trident-installer installer 

The successfull installation will looks like:

[2020-09-09 19:53:04] Moving tridentctl to /usr/local/bin
'tridentctl' -> '/usr/local/bin/tridentctl'
[2020-09-09 19:53:05] Installation finished!
[2020-09-09 19:53:05] Clean up all folder....

Feedback

Try this method and give me a feedback. If you encounter any problems, please open a github issue.