Add docker build and push github action

.github/workflows/publish.yml

@@ -1,13 +1,19 @@
-name: Publish to PyPI/github
+name: Publish
 
 on:
   push:
     tags:
       - '[0-9]+.[0-9]+.[0-9]+[ab]?[0-9]?'
+    branches:
+      - master
+  pull_request:
+    branches:
+      - 'master'
 
 jobs:
-  build-n-publish:
+  build-n-publish-package:
     name: Build and publish to PyPI
+    if: startsWith(github.ref, 'refs/tags/')
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
@@ -38,3 +44,34 @@ jobs:
       uses: pypa/gh-action-pypi-publish@release/v1
       with:
         password: ${{ secrets.PYPI_API_TOKEN }}
+
+  build-n-publish-docker:
+    name: Build and publish to Docker
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v5
+      -
+        name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: eclecticiq/opentaxii
+          tags: |
+            type=ref,event=branch
+            type=semver,pattern={{version}}
+      -
+        name: Login to Docker Hub
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

examples/docker-compose-taxii2.yml

@@ -1,6 +1,6 @@
 services:
   opentaxii:
-    image: eclecticiq/opentaxii:latest
+    image: eclecticiq/opentaxii:${IMAGE_TAG-latest}
     environment:
       # Required for the CLI commands to use the correct config
       OPENTAXII_CONFIG: /opentaxii.yml

examples/docker-compose.yml

@@ -13,7 +13,7 @@ authdb:
     POSTGRES_DB: opentaxii1
 
 opentaxii:
-  image: eclecticiq/opentaxii
+  image: eclecticiq/opentaxii:${IMAGE_TAG-latest}
   environment:
     DOCKER_OPENTAXII_AUTH_SECRET: secret
     OPENTAXII_DOMAIN: 192.168.59.103:9000
@@ -34,7 +34,7 @@ opentaxii:
     - authdb:authdb
 
 opentaxii2:
-  image: eclecticiq/opentaxii
+  image: eclecticiq/opentaxii:${IMAGE_TAG-latest}
   environment:
     DOCKER_OPENTAXII_AUTH_SECRET: secrettwo
     OPENTAXII_DOMAIN: 192.168.59.103