Fix filepath setup

With the new mountPath spec, you can assume users specify a full/correct path in harness

dockerfiles/harness/base.Dockerfile

@@ -49,4 +49,6 @@ COPY --chown=nonroot --from=environment /bin/sh /bin/sh
 COPY --chown=nonroot --from=environment /bin/sleep /bin/sleep
 COPY --from=builder /plural/harness /harness
 
-ENTRYPOINT ["/harness", "--working-dir=plural"]
+WORKDIR /plural
+
+ENTRYPOINT ["/harness", "--working-dir=/plural"]

pkg/harness/controller/controller.go

@@ -185,7 +185,7 @@ func (in *stackRunController) prepare() error {
 	env := environment.New(
 		environment.WithStackRun(in.stackRun),
 		environment.WithWorkingDir(in.dir),
-		environment.WithFilesDir(in.execWorkDir()),
+		environment.WithFilesDir(in.dir),
 		environment.WithFetchClient(in.fetchClient),
 	)
 

pkg/harness/environment/environment.go

@@ -1,8 +1,6 @@
 package environment
 
 import (
-	"path"
-
 	"k8s.io/klog/v2"
 
 	"github.com/pluralsh/deployment-operator/internal/helpers"
@@ -38,7 +36,8 @@ func (in *environment) prepareFiles() error {
 	}
 
 	for _, fragment := range in.stackRun.Files {
-		destination := path.Join(in.filesDir, fragment.Path)
+		// destination := path.Join(in.filesDir, fragment.Path)
+		destination := fragment.Path
 		if err := helpers.File().Create(destination, fragment.Content); err != nil {
 			klog.ErrorS(err, "failed preparing files", "path", destination)
 			return err