TUN-4055: Skeleton for component tests

component-tests/util.py

@@ -0,0 +1,27 @@
+import logging
+import os
+import subprocess
+import yaml
+
+LOGGER = logging.getLogger(__name__)
+
+def get_cloudflared():
+    cfd_binary = os.getenv('CFD_BINARY')
+    return "cloudflared" if cfd_binary is None else cfd_binary
+
+
+def write_config(path, config):
+    config_path = path / "config.yaml"
+    with open(config_path, 'w') as outfile:
+        yaml.dump(config, outfile)
+    return config_path
+
+
+def start_cloudflared(path, config, args, pre_args=[]):
+    config_path = write_config(path, config)
+    cmd = [get_cloudflared()]
+    cmd += pre_args
+    cmd += ["--config", config_path]
+    cmd += args
+    LOGGER.info(f"Run cmd {cmd} with config {config}")
+    return subprocess.run(cmd, capture_output=True)