1 files changed, 48 insertions, 0 deletions
diff --git a/taskcluster/taskgraph/transforms/scriptworker_canary.py b/taskcluster/taskgraph/transforms/scriptworker_canary.py
new file mode 100644
index 0000000000..76734a3fa6
--- /dev/null
+++ b/taskcluster/taskgraph/transforms/scriptworker_canary.py
@@ -0,0 +1,48 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+"""
+Build a command to run `mach release push-scriptworker-canaries`.
+"""
+
+from __future__ import absolute_import, print_function, unicode_literals
+
+from pipes import quote as shell_quote
+
+from mozrelease.scriptworker_canary import TASK_TYPES
+
+from taskgraph.transforms.base import TransformSequence
+
+transforms = TransformSequence()
+
+
+@transforms.add
+def build_command(config, jobs):
+    scriptworkers = config.params["try_task_config"].get(
+        "scriptworker-canary-workers", []
+    )
+    # Filter the list of workers to those we have configured a set of canary
+    # tasks for.
+    scriptworkers = [
+        scriptworker for scriptworker in scriptworkers if scriptworker in TASK_TYPES
+    ]
+
+    if not scriptworkers:
+        return
+
+    for job in jobs:
+
+        command = ["release", "push-scriptworker-canary"]
+        for scriptworker in scriptworkers:
+            command.extend(["--scriptworker", scriptworker])
+        for address in job.pop("addresses"):
+            command.extend(["--address", address])
+        if "ssh-key-secret" in job:
+            ssh_key_secret = job.pop("ssh-key-secret")
+            command.extend(["--ssh-key-secret", ssh_key_secret])
+            job.setdefault("scopes", []).append("secrets:get:{}".format(ssh_key_secret))
+
+        job.setdefault("run", {}).update(
+            {"using": "mach", "mach": " ".join(map(shell_quote, command))}
+        )
+        yield job