Add Docker CI/CD.

.github/dependabot.yml

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+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "docker" # See documentation for possible values
+    directory: "/docker" # Location of package manifests
+    schedule:
+      interval: "daily"

.github/workflows/docker-publish.yml

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+name: Build and Publish Docker Image
+
+on:
+  push:
+    branches: [main]
+  schedule:
+      # * is a special character in YAML so you have to quote this string
+      - cron:  '0 9 * * 6'
+
+  workflow_dispatch:
+
+jobs:
+  build-and-push-docker-image:
+    name: Build Docker image and push to repositories
+    runs-on: ubuntu-latest
+    steps:
+
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Force permissions fix.
+        run: sudo apt-get update && sudo apt-get install dos2unix -y && cd docker && bash dos2unix.sh
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Login to Github Packages
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Get current date
+        id: date
+        run: echo "DATE=$(date +'%Y-%m-%d')" >> $GITHUB_ENV
+
+      - name: Build image and push to Docker Hub and GitHub Container Registry
+        uses: docker/build-push-action@v5
+        with:
+          context: ./docker
+          push: true
+          tags: |
+            aterfax/pbs-client:latest 
+            ghcr.io/aterfax/pbs-client:latest
+            aterfax/pbs-client:${{ env.DATE }}
+            ghcr.io/aterfax/pbs-client:${{ env.DATE }}
+
+      - name: Image digest
+        run: echo ${{ steps.docker_build.outputs.digest }}

.github/workflows/docker-test.yml

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+name: Build Docker Image
+
+on:
+  # run it during pull request
+  pull_request:
+      
+  workflow_dispatch:
+
+jobs:
+  # define job to build and publish docker image
+  build-docker-image:
+    name: Build Docker image only
+    # run only when code is compiling and tests are passing
+    runs-on: ubuntu-latest
+
+    # steps to perform in job
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Force permissions fix.
+        run: sudo apt-get update && sudo apt-get install dos2unix -y && cd docker && bash dos2unix.sh
+
+      # setup Docker build action
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+      
+      - name: Build image only
+        uses: docker/build-push-action@v5
+        with:
+          context: ./docker
+          push: false
+
+      - name: Image digest
+        run: echo ${{ steps.docker_build.outputs.digest }}