Step 3.1: Setting up cert manager.

Prerequisites:

You should have a stable Kubernetes cluster. All the pods should be in running state.

kubectl get all -A

1. Login to the cluster master node.

Refer: link

2. Install cert-manager.

kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.8.0/cert-manager.yaml

3. Check if the installation is successful or not.

curl -sSL -o cmctl.tar.gz https://github.com/cert-manager/cert-manager/releases/download/v1.7.2/cmctl-linux-amd64.tar.gz    
tar xzf cmctl.tar.gz
sudo mv cmctl /usr/local/bin
cmctl check api

You should get a response: The cert-manager API is ready

4. Create ClusterIssuer. Copy the file letsencrypt-prod-cluster-issuer.yaml from this repo-directory. Change the email address where mentioned in the yaml file.

kubectl apply -f letsencrypt-prod-cluster-issuer.yaml

5. Check the pods using the below command.

kubectl get all -n cert-manager