stages/ostree.deploy: add remote option

Add an optional `remote` to the deployment of the ostree so that
the it is tied to the specified remote. This is needed later for
updating the commit from that remote.

stages/org.osbuild.ostree.deploy

@@ -54,6 +54,10 @@ SCHEMA = """
     "description": "OStree ref to use for the deployment",
     "type": "string"
   },
+  "remote": {
+    "description": "optional OStree remote to use for the deployment",
+    "type": "string"
+  },
   "rootfs": {
     "description": "Identifier to locate the root file system",
     "type": "object",
@@ -136,6 +140,10 @@ def main(tree, options):
     mounts = options.get("mounts", [])
     kopts = options.get("kernel_opts", [])
     ref = options["ref"]
+    remote = options.get("remote")
+
+    if remote:
+        ref = f"{remote}:{ref}"
 
     kargs = []
 

test/data/manifests/fedora-ostree-image.json

@@ -861,6 +861,7 @@
           "options": {
             "osname": "fedora",
             "ref": "fedora/x86_64/osbuild",
+            "remote": "osbuild",
             "mounts": [
               "/boot",
               "/boot/efi"

test/data/manifests/fedora-ostree-image.mpp.json

@@ -301,6 +301,7 @@
           "options": {
             "osname": "fedora",
             "ref": "fedora/x86_64/osbuild",
+            "remote": "osbuild",
             "mounts": [
               "/boot",
               "/boot/efi"