Update workflow

.github/workflows/ci.yml

@@ -177,3 +177,38 @@ jobs:
         name: Dump context
         if: always()
         uses: crazy-max/ghaction-dump-context@v1
+
+  bake:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Docker meta
+        id: docker_meta
+        uses: ./
+        with:
+          images: |
+            ${{ env.DOCKER_IMAGE }}
+            ghcr.io/name/app
+          tag-sha: true
+          tag-semver: |
+            {{version}}
+            {{major}}.{{minor}}
+            {{major}}
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Build
+        uses: crazy-max/ghaction-docker-buildx-bake@v1
+        with:
+          files: |
+            ./test/docker-bake.hcl
+            ${{ steps.docker_meta.outputs.bake-file }}
+          targets: |
+            release

README.md

@@ -171,15 +171,11 @@ target named `ghaction-docker-meta`.
 
 ```hcl
 // docker-bake.hcl
-target "ghaction-docker-meta" {
-  tags = ["crazymax/diun:local"]
-  labels = {
-    "maintainer" = "CrazyMax"
-  }
-}
+
+target "ghaction-docker-meta" {}
 
 target "build" {
-  inherits = ["docker-meta"]
+  inherits = ["ghaction-docker-meta"]
   context = "./"
   dockerfile = "Dockerfile"
   platforms = ["linux/amd64", "linux/arm/v6", "linux/arm/v7", "linux/arm64", "linux/386", "linux/ppc64le"]

test/docker-bake.hcl

@@ -0,0 +1,39 @@
+group "default" {
+  targets = ["db", "app"]
+}
+
+group "release" {
+  targets = ["db", "app-plus"]
+}
+
+target "db" {
+  context = "./test"
+  tags = ["docker.io/tonistiigi/db"]
+}
+
+target "app" {
+  context = "./test"
+  dockerfile = "Dockerfile"
+  args = {
+    name = "foo"
+  }
+  tags = [
+    "localhost:5000/name/app:latest",
+    "localhost:5000/name/app:1.0.0"
+  ]
+}
+
+target "cross" {
+  platforms = [
+    "linux/amd64",
+    "linux/arm64",
+    "linux/386"
+  ]
+}
+
+target "app-plus" {
+  inherits = ["app", "cross"]
+  args = {
+    IAMPLUS = "true"
+  }
+}