name: Setup K8S Environment
description: Prepare the environment for A13labs CI/CD pipelines
inputs:
  k8s-target:
    description: "The target host to deploy the K8S applications"
    default: "microk8s"

runs:
  using: "composite"
  steps:
    - name: Copy Kube Config from remote host
      env:
        VAULT_MASTER_PASSWORD: ${{ secrets.VAULT_MASTER_PASSWORD }}
        ANSIBLE_USER: ${{ secrets.ANSIBLE_USER }}
        SSH_AUTH_SOCK: /tmp/ssh_agent.sock
      run: |
        mkdir -p ~/.kube
        ansible -i ansible/inventory/hosts -u $ANSIBLE_USER -m fetch -a "src=/home/$ANSIBLE_USER/.kube/config dest=~/.kube/config flat=yes" {{ inputs.k8s-target }}

    - name: Terraform Init
      env:
        VAULT_MASTER_PASSWORD: ${{ secrets.VAULT_MASTER_PASSWORD }}
      run: |
        cd terraform/k8sapps
        sectool exec terraform init

    - name: Terraform Apply
      env:
        VAULT_MASTER_PASSWORD: ${{ secrets.VAULT_MASTER_PASSWORD }}
        ANSIBLE_USER: ${{ secrets.ANSIBLE_USER }}
        SSH_AUTH_SOCK: /tmp/ssh_agent.sock
      run: |
        # Get Hostname and IP address of the target
        ANSIBLE_HOST=$(ansible -i ansible/inventory/hosts -u $ANSIBLE_USER -m shell -a "hostname" {{ inputs.k8s-target }} | grep -oP '(\w+\.){2}\w+' | head -1)
        IP_ADDR=$(ansible -i ansible/inventory/hosts -u $ANSIBLE_USER -m shell -a "curl -s ifconfig.me" {{ inputs.k8s-target }} | grep -oP '(\d+\.){3}\d+')

        # Forward the k8s API server port to localhost
        ssh -f -N -L 16443:localhost:16443 $ANSIBLE_USER@$ANSIBLE_HOST

        # Override the kube config file to use localhost
        sed -i "s/server: https:\/\/$IP_ADDR:16443/server: https:\/\/localhost:16443/g" ~/.kube/config