Build and publish helper images with Flowzone

Rather than build helper images on demand, we will
publish them to ghcr.io with every revision of this project.

Change-type: minor
Signed-off-by: Kyle Harding <[email protected]>

.github/workflows/flowzone.yml

@@ -26,3 +26,7 @@ jobs:
         github.event_name == 'pull_request_target'
       )
     secrets: inherit
+    with:
+      docker_images: |
+        ghcr.io/balena-os/balena-yocto-scripts
+      bake_targets: yocto-build-env,block-build-env,balena-push-env,generate-ami-env,balena-img-s3

automation/Dockerfile_balena-img-s3

@@ -0,0 +1 @@
+FROM balena/balena-img:6.20.26

docker-bake.hcl

@@ -0,0 +1,44 @@
+target "yocto-build-env" {
+  context = "automation"
+  dockerfile = "Dockerfile_yocto-build-env"
+  platforms = [
+    "linux/amd64",
+    // "linux/arm64"
+  ]
+}
+
+target "block-build-env" {
+  context = "automation"
+  dockerfile = "Dockerfile_yocto-block-build-env"
+  platforms = [
+    "linux/amd64",
+    // "linux/arm64"
+  ]
+}
+
+target "balena-push-env" {
+  context = "automation"
+  dockerfile = "Dockerfile_balena-push-env"
+  platforms = [
+    "linux/amd64",
+    // "linux/arm64"
+  ]
+}
+
+target "generate-ami-env" {
+  context = "automation"
+  dockerfile = "Dockerfile_balena-generate-ami-env"
+  platforms = [
+    "linux/amd64",
+    // "linux/arm64"
+  ]
+}
+
+target "balena-img-s3" {
+  context = "automation"
+  dockerfile = "Dockerfile_balena-img-s3"
+  platforms = [
+    "linux/amd64",
+    "linux/arm64"
+  ]
+}