feat: publish docker image on dockerhub

.github/workflows/publish-docker-image.yml

@@ -0,0 +1,59 @@
+name: Publish docker image
+
+on:
+  push:
+    branches:
+      # todo: Replace with `main` in the final version
+      - "docker"
+      - "releases/v*"
+    tags:
+      - "v*"
+  pull_request:
+    branches:
+      # todo: Replace with `main` in the final version
+      - "docker"
+      - "releases/v*"
+
+env:
+  # todo: Replace with `torrust/torrust-tracker` in the final version
+  DOCKER_IMAGE: josecelano/torrust-tracker
+
+jobs:
+  dockerhub:
+    runs-on: ubuntu-latest
+    environment: dockerhub-josecelano
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            ${{ env.DOCKER_IMAGE }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Build and push
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: ./Dockerfile
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

cSpell.json

@@ -9,12 +9,14 @@
         "Bitflu",
         "bools",
         "bufs",
+        "Buildx",
         "byteorder",
         "canonicalize",
         "canonicalized",
         "chrono",
         "clippy",
         "completei",
+        "dockerhub",
         "downloadedi",
         "filesd",
         "Freebox",