POC a GitOps process with a QA environment
Install the following tools
- Docker
- k3d
- kubectl
cd into the ./cluster folder and run k3d cluster create. K3d will magically pick up the config file :)
Once the cluster has been created, your kube-config file should be automatically update. You can then run kubectl cluster-info if you see the that the control plane is running on https://0.0.0.0 you know you have a running cluster, locally!
For GitOps we need to depoy an application called ArgoCD. This is going to be our main way of deploying applications to the cluster from a git repo.
Create the ArgoCD namespace kubectl create namespace argocd
Navigate to the ./argocd folder and apply the deployment manifest (install.yaml) into the argocd namespace.
kubectl apply -f install.yaml -n argocd
That should do it. Lets get connected by getting the ArgoCD service name and port forwarding to it.
List services: kubectl get service -n argocd
The one we are looking for should be argocd-server.
Using kubectl, port forward to the server port with kubectl port-forward svc/argocd-server -n argocd 8080:443
Open your favorite browser and navigate to https://localhost:8080, accept the self-signed certificate error and you should be presented with the ArgoCD page.
Lets get the credentials to log into the ArgoCD dashboard. ArgoCD stores this in a Kubernetes secret that was created when we installed ArgoCD.
Retrieve secret value: echo $(kubectl get secret argocd-initial-admin-secret -n argocd -o jsonpath="{.data.password}") | base64 -d
Using the secret, log into ArgoCD
Username: admin Password: