Add Terraform config for docker-worker on Packet.net

etc/taskcluster/packet.net/tc.py

@@ -0,0 +1,35 @@
+# 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/.
+
+import os
+import sys
+import json
+import subprocess
+
+
+def check():
+    try:
+        subprocess.check_output(["taskcluster", "version"])
+    except FileNotFoundError:  # noqa: F821
+        sys.exit("taskcluster CLI tool not available. Install it from "
+                 "https://github.com/taskcluster/taskcluster-cli#installation")
+
+    if "TASKCLUSTER_CLIENT_ID" not in os.environ or "TASKCLUSTER_ACCESS_TOKEN" not in os.environ:
+        sys.exit("Taskcluster API credentials not available. Run this command and try again:\n\n"
+                 "eval `taskcluster signin`\n")
+
+
+def packet_auth_token():
+    return secret("project/servo/packet.net-api-key")["key"]
+
+
+def secret(name):
+    return api("secrets", "get", name)["secret"]
+
+
+def api(*args):
+    args = ["taskcluster", "api"] + list(args)
+    output = subprocess.check_output(args)
+    if output:
+        return json.loads(output)