feat(snowplow): move snowplow-micro docker image into this repo (#381)

- pocket decommission
- HNT-1769

Author: jpetto

.github/workflows/docker-images.yml

@@ -0,0 +1,42 @@
+name: Docker Images
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+  schedule: # Rebuild images nightly
+    - cron: '0 0 * * *'
+
+jobs:
+  snowplow:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Build (dev)
+        uses: docker/build-push-action@v6
+        with:
+          push: ${{ github.ref == 'refs/heads/main' && true || false}}
+          platforms: linux/amd64,linux/arm64
+          tags: pocket/snowplow-micro:latest,pocket/snowplow-micro:dev
+          context: '{{defaultContext}}:docker-images/snowplow-micro'
+          build-args: |
+            API_KEY=${{secrets.SNOWPLOW_DEV_API_KEY}}
+            COLLECTOR=https://com-getpocket-dev.iglu.snplow.net/api
+      - name: Build (prod)
+        uses: docker/build-push-action@v6
+        with:
+          push: ${{ github.ref == 'refs/heads/main' && true || false}}
+          platforms: linux/amd64,linux/arm64
+          tags: pocket/snowplow-micro:prod
+          context: '{{defaultContext}}:docker-images/snowplow-micro'
+          build-args: |
+            API_KEY=${{secrets.SNOWPLOW_PROD_API_KEY}}
+            COLLECTOR=https://com-getpocket-prod.iglu.snplow.net/api

docker-images/snowplow-micro/Dockerfile

@@ -0,0 +1,7 @@
+FROM snowplow/snowplow-micro:4.0.0
+
+ARG API_KEY
+ARG COLLECTOR
+
+ENV MICRO_IGLU_REGISTRY_URL=${COLLECTOR}
+ENV MICRO_IGLU_API_KEY=${API_KEY}