first commit

gunicorn_conf.py

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+# cat /gunicorn_conf.py inside container
+# Copied to project so we can tune max_content_length
+from __future__ import print_function
+
+import json
+import multiprocessing
+import os
+
+workers_per_core_str = os.getenv("WORKERS_PER_CORE", "2")
+web_concurrency_str = os.getenv("WEB_CONCURRENCY", None)
+host = os.getenv("HOST", "0.0.0.0")
+port = os.getenv("PORT", "80")
+bind_env = os.getenv("BIND", None)
+use_loglevel = os.getenv("LOG_LEVEL", "info")
+if bind_env:
+    use_bind = bind_env
+else:
+    use_bind = "{host}:{port}".format(host=host, port=port)
+
+cores = multiprocessing.cpu_count()
+workers_per_core = float(workers_per_core_str)
+default_web_concurrency = workers_per_core * cores
+if web_concurrency_str:
+    web_concurrency = int(web_concurrency_str)
+    assert web_concurrency > 0
+else:
+    web_concurrency = int(default_web_concurrency)
+
+# Gunicorn config variables
+loglevel = use_loglevel
+workers = web_concurrency
+bind = use_bind
+keepalive = 120
+errorlog = "-"
+
+# For debugging and testing
+log_data = {
+    "loglevel": loglevel,
+    "workers": workers,
+    "bind": bind,
+    # Additional, non-gunicorn variables
+    "workers_per_core": workers_per_core,
+    "host": host,
+    "port": port,
+}
+print(json.dumps(log_data))