ci: add dockerfile check

Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>

.github/workflows/build.yml

@@ -56,6 +56,7 @@ jobs:
           - test
           - unused-media
           - test-go-redirects
+          - dockerfile-lint
     steps:
       -
         name: Checkout

Dockerfile

@@ -1,4 +1,5 @@
 # syntax=docker/dockerfile-upstream:master
+# check=skip=InvalidBaseImagePlatform
 
 # ALPINE_VERSION sets the Alpine Linux version for all Alpine stages
 ARG ALPINE_VERSION=3.20

docker-bake.hcl

@@ -32,7 +32,7 @@ target "release" {
 }
 
 group "validate" {
-  targets = ["lint", "test", "unused-media", "test-go-redirects"]
+  targets = ["lint", "test", "unused-media", "test-go-redirects", "dockerfile-lint"]
 }
 
 target "test" {
@@ -59,6 +59,10 @@ target "test-go-redirects" {
   provenance = false
 }
 
+target "dockerfile-lint" {
+  call = "check"
+}
+
 #
 # releaser targets are defined in _releaser/Dockerfile
 # and are used for AWS S3 deployment