Add container workflow

.github/workflows/build-containers.yml

@@ -0,0 +1,42 @@
+---
+name: "Build Tag"
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  build-tag:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: |
+            **/package-lock.json
+
+      - name: Login to ghcr
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.CONTAINER_TOKEN }}
+
+      - name: docker build
+        run: npm run docker-build
+
+      - name: docker tag
+        run: |
+          docker tag localhost/postiz ghcr.io/githubhq/postiz-app:${{ GITHUB_REF_NAME }}
+          docker push ghcr.io/githubhq/postiz-app:${{ GITHUB_REF_NAME }}
+
+          docker tag localhost/postiz-devcontainer ghcr.io/githubhq/postiz-app:${{ GITHUB_REF_NAME }}
+          docker push ghcr.io/githubhq/postiz-devcontainer:${{ GITHUB_REF_NAME }}