Report user agent

camtiler.py

@@ -29,6 +29,9 @@ print("Running with following targets:")
 for name, url in targets:
     print(url)
 
+GIT_COMMIT = os.getenv("GIT_COMMIT", "null")
+GIT_COMMIT_TIMESTAMP = os.getenv("GIT_COMMIT_TIMESTAMP", "null")
+
 counter_dropped_bytes = Counter(
     "camtiler_client_dropped_bytes",
     "Bytes that were not not handled or part of actual JPEG frames")
@@ -54,6 +57,13 @@ counter_errors =  Counter(
     "camtiler_errors",
     "Upstream connection errors",
     ["exception"])
+gauge_build_info = Gauge(
+    "docker_build_info",
+    "Build info",
+    ["git_commit", "git_commit_timestamp"])
+gauge_build_info.labels(
+    GIT_COMMIT,
+    GIT_COMMIT_TIMESTAMP).set(1)
 
 app = Sanic("camtiler")
 
@@ -143,9 +153,15 @@ async def client_connect(name, resp):
 
 async def client(name, url):
     print("Opening upstream connection to %s" % url)
+    kwargs = dict(
+        headers = {
+            "User-Agent": "camtiler/%s" % GIT_COMMIT_TIMESTAMP
+        },
+        skip_auto_headers = True,
+        timeout = aiohttp.ClientTimeout(connect=5, sock_read=2))
     while True:
         app.ctx.frames[name] = None
-        async with aiohttp.ClientSession(timeout=aiohttp.ClientTimeout(connect=5, sock_read=2)) as session:
+        async with aiohttp.ClientSession(**kwargs) as session:
             try:
                 async with session.get(url) as resp:
                     await client_connect(name, resp)