name: Deploy

on:
  push:
    branches:
      - main
  workflow_dispatch:

jobs:
  check-changes:
    runs-on: ubuntu-latest
    outputs:
      node-labels: ${{ steps.filter.outputs.node-labels }}
      coredns: ${{ steps.filter.outputs.coredns }}
      traefik: ${{ steps.filter.outputs.traefik }}
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          fetch-depth: 0
      - uses: dorny/paths-filter@fbd0ab8f3e69293af611ebaee6363fc25e6d187d # v4.0.1
        id: filter
        with:
          filters: |
            node-labels:
              - 'node-labels/**'
            coredns:
              - 'coredns/**'
            traefik:
              - 'traefik/**'

  deploy-node-labels:
    runs-on: ubuntu-latest
    needs: check-changes
    if: ${{ needs.check-changes.outputs.node-labels == 'true' || github.event_name == 'workflow_dispatch' }}
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - uses: azure/setup-kubectl@15650b3ad78fff148532a140b8a4c821796b2d7b # v5.0.0
      - uses: azure/k8s-set-context@89b837d75b40a7bd2ddafde837473c212db8b313 # v5.0.0
        with:
          method: kubeconfig
          kubeconfig: ${{ secrets.KUBECONFIG }}
      - name: Deploy
        run: |
          kubectl apply --server-side --field-manager=t000-n -f node-labels

  deploy-coredns:
    runs-on: ubuntu-latest
    needs: check-changes
    if: ${{ needs.check-changes.outputs.coredns == 'true' || github.event_name == 'workflow_dispatch' }}
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - uses: azure/setup-kubectl@15650b3ad78fff148532a140b8a4c821796b2d7b # v5.0.0
      - uses: azure/k8s-set-context@89b837d75b40a7bd2ddafde837473c212db8b313 # v5.0.0
        with:
          method: kubeconfig
          kubeconfig: ${{ secrets.KUBECONFIG }}
      - name: Deploy
        run: |
          kubectl apply -n kube-system -f coredns
      - name: Restart coredns
        run: |
          kubectl -n kube-system rollout restart deployment coredns

  deploy-traefik:
    runs-on: ubuntu-latest
    needs: check-changes
    if: ${{ needs.check-changes.outputs.traefik == 'true' || github.event_name == 'workflow_dispatch' }}
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - uses: azure/setup-kubectl@15650b3ad78fff148532a140b8a4c821796b2d7b # v5.0.0
      - uses: azure/k8s-set-context@89b837d75b40a7bd2ddafde837473c212db8b313 # v5.0.0
        with:
          method: kubeconfig
          kubeconfig: ${{ secrets.KUBECONFIG }}
      - name: Set ionos api credentials
        uses: azure/k8s-create-secret@6e0ba8047235646753f2a3a3b359b4d0006ff218 # v5.0.1
        with:
          namespace: kube-system
          secret-name: ionos-api-credentials
          secret-type: generic
          data: |
            {
              "apiKey": "${{ secrets.IONOS_API_KEY }}"
            }
      - name: Set admin basic auth credentials
        uses: azure/k8s-create-secret@6e0ba8047235646753f2a3a3b359b4d0006ff218 # v5.0.1
        with:
          namespace: kube-system
          secret-name: admin-basic-auth-credentials
          secret-type: Opaque
          data: |
            {
              "auth": "${{ secrets.ADMIN_BASIC_AUTH_CREDENTIALS }}"
            }
      - name: Deploy
        uses: azure/k8s-deploy@c8cfec839dc09896b3b8cc40cd13d04792680771 # v5.1.0
        with:
          action: deploy
          manifests: "traefik/"
          strategy: basic
          namespace: kube-system

  deploy-docker-registry-secret:
    runs-on: ubuntu-latest
    needs: check-changes
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - uses: azure/setup-kubectl@15650b3ad78fff148532a140b8a4c821796b2d7b # v5.0.0
      - uses: azure/k8s-set-context@89b837d75b40a7bd2ddafde837473c212db8b313 # v5.0.0
        with:
          method: kubeconfig
          kubeconfig: ${{ secrets.KUBECONFIG }}
      - name: Set docker registry credentials
        run: |
          kubectl create secret docker-registry regcred-dockerhub \
            --docker-server=https://index.docker.io/v1/ \
            --docker-username="${{ secrets.DOCKER_USERNAME }}" \
            --docker-password="${{ secrets.DOCKER_PASSWORD }}" \
            --docker-email="${{ secrets.DOCKER_EMAIL }}" \
            --namespace=default \
            --dry-run=client -o yaml | kubectl apply -f -
      - name: Configure image pull secret globally
        run: |
          kubectl patch serviceaccount default -p '{"imagePullSecrets": [{"name": "regcred-dockerhub"}]}'