test: backend test with prebuilt arm images

Ticket: None
Changelog: None

Signed-off-by: Roberto Giovanardi <[email protected]>

extra/release_tool.py

@@ -1925,7 +1925,7 @@ def tag_or_followed_branch(repo_git):
     print("Output is captured in generated-license-text.txt.")
 
 
-def set_component_version_to(dir, component, tag):
+def set_component_version_to(dir, component, tag, image_repository=None):
     """Modifies yml files in the given directory so that the image label points to
     the given tag. It uses the component type to decide which file to put the
     tag in."""
@@ -1946,12 +1946,30 @@ def _replace_version_in_file(filename, image, version):
         old.close()
         os.rename(filename + ".tmp", filename)
 
+    def _replace_repository_in_file(filename, image, repository):
+        old = open(filename)
+        new = open(filename + ".tmp", "w")
+        for line in old:
+            # Replace :version with a new one.
+            line = re.sub(
+                r"^(\s*image:\s*)((.*(?:mendersoftware|mender\.io.*))(/%s))(:\S+(\s*))$"
+                % re.escape(image),
+                r"\g<1>%s\4\5" % repository,
+                line,
+            )
+            new.write(line)
+        new.close()
+        old.close()
+        os.rename(filename + ".tmp", filename)
+
     compose_files_docker = docker_compose_files_list(dir, "docker")
     git_files = docker_compose_files_list(dir, "git")
 
     if component.type == "docker_image":
         for filename in compose_files_docker:
             _replace_version_in_file(filename, component.docker_image(), tag)
+            if image_repository:
+                _replace_repository_in_file(filename, component.docker_image(), image_repository)
     elif component.type == "git":
         for filename in git_files:
             _replace_version_in_file(filename, component.git(), tag)
@@ -2924,25 +2942,28 @@ def do_set_version_to(args):
 
     elif version_type == "docker":
         component = Component.get_component_of_type("docker_image", args.set_version_of)
-        set_component_version_to(integration_dir(), component, args.version)
+        set_component_version_to(integration_dir(), component, args.version, args.image_repository)
         # Update extra files used in integration tests
         set_component_version_to(
             os.path.join(integration_dir(), "backend-tests", "docker"),
             component,
             args.version,
+            args.image_repository
         )
         set_component_version_to(
-            os.path.join(integration_dir(), "extra", "mtls"), component, args.version,
+            os.path.join(integration_dir(), "extra", "mtls"), component, args.version, args.image_repository
         )
         set_component_version_to(
             os.path.join(integration_dir(), "extra", "failover-testing"),
             component,
             args.version,
+            args.image_repository
         )
         set_component_version_to(
             os.path.join(integration_dir(), "extra", "mender-gateway"),
             component,
             args.version,
+            args.image_repository
         )
 
 
@@ -3390,6 +3411,11 @@ def main():
         dest="version",
         help="Version which is used in above two arguments",
     )
+    parser.add_argument(
+        "--repository",
+        dest="image_repository",
+        help="Optional external repository, for example registry.gitlab.com/northern.tech/mender",
+    )
     parser.add_argument(
         "-b",
         "--build",