hof/test: make arch configurable in dagger code

test/dagger/hof.go

@@ -21,11 +21,11 @@ func (R *Runtime) GolangImage(platform string) (*dagger.Container) {
 		From(goVer)
 
 	// setup mod cache
-	modCache := R.Client.CacheVolume("gomod-" + platform)
+	modCache := R.Client.CacheVolume(fmt.Sprintf("gomod-%s-%s", goVer, platform))
 	c = c.WithMountedCache("/go/pkg/mod", modCache)
 
 	// setup build cache
-	buildCache := R.Client.CacheVolume("go-build-" + platform)
+	buildCache := R.Client.CacheVolume(fmt.Sprintf("go-build-%s-%s", goVer, platform))
 	c = c.WithMountedCache("/root/.cache/go-build", buildCache)
 
 	// setup workdir

test/dagger/main/hof.go

@@ -21,10 +21,12 @@ func check(err error) {
 }
 
 var RUNTIME string
+var ARCH string
 var TESTS string
 
 func init() {
 	pflag.StringVarP(&RUNTIME, "runtime", "r", "docker", "container runtime to use [docker, nerdctl, podman, none]")
+	pflag.StringVarP(&ARCH, "arch", "a", "amd64", "arch identifier, like golang uses")
 	pflag.StringVarP(&TESTS, "tests", "t", "", "tests to run, comma separated")
 }
 
@@ -54,10 +56,10 @@ func main() {
 	//
 	// Building
 	//
-	base := R.GolangImage("linux/amd64")
+	base := R.GolangImage("linux/"+ARCH)
 	deps := R.FetchDeps(base, source)
 	builder := R.BuildHof(deps, source)
-	runner := R.RuntimeContainer(builder, "linux/amd64")
+	runner := R.RuntimeContainer(builder, "linux/"+ARCH)
 
 	//
 	// TESTS