anti
8335c5dc4c
Every service's _log() called print() then write_syslog_file() which also calls print(), causing every log line to appear twice in Docker logs. The collector streamed both copies, doubling ingested events. Removed the redundant print() from all 22 service server.py files.
117 lines
2.9 KiB
Python
117 lines
2.9 KiB
Python
#!/usr/bin/env python3
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"""
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Docker APIserver.
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Serves a fake Docker REST API on port 2375. Responds to common recon
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endpoints (/version, /info, /containers/json, /images/json) with plausible
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but fake data. Logs all requests as JSON.
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"""
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import json
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import os
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from flask import Flask, request
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from decnet_logging import syslog_line, write_syslog_file, forward_syslog
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NODE_NAME = os.environ.get("NODE_NAME", "docker-host")
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SERVICE_NAME = "docker_api"
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LOG_TARGET = os.environ.get("LOG_TARGET", "")
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app = Flask(__name__)
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_VERSION = {
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"Version": "24.0.5",
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"ApiVersion": "1.43",
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"MinAPIVersion": "1.12",
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"GitCommit": "ced0996",
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"GoVersion": "go1.20.6",
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"Os": "linux",
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"Arch": "amd64",
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"KernelVersion": "5.15.0-76-generic",
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}
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_INFO = {
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"ID": "FAKE:FAKE:FAKE:FAKE",
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"Containers": 3,
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"ContainersRunning": 3,
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"Images": 7,
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"Driver": "overlay2",
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"MemoryLimit": True,
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"SwapLimit": True,
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"KernelMemory": False,
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"Name": NODE_NAME,
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"DockerRootDir": "/var/lib/docker",
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"HttpProxy": "",
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"HttpsProxy": "",
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"NoProxy": "",
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"ServerVersion": "24.0.5",
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}
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_CONTAINERS = [
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{
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"Id": "a1b2c3d4e5f6",
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"Names": ["/webapp"],
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"Image": "nginx:latest",
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"State": "running",
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"Status": "Up 3 days",
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"Ports": [{"IP": "0.0.0.0", "PrivatePort": 80, "PublicPort": 8080, "Type": "tcp"}], # nosec B104
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}
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]
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def _log(event_type: str, severity: int = 6, **kwargs) -> None:
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line = syslog_line(SERVICE_NAME, NODE_NAME, event_type, severity, **kwargs)
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write_syslog_file(line)
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forward_syslog(line, LOG_TARGET)
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@app.before_request
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def log_request():
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_log(
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"request",
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method=request.method,
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path=request.path,
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remote_addr=request.remote_addr,
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body=request.get_data(as_text=True)[:512],
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)
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@app.route("/version")
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@app.route("/<ver>/version")
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def version(ver=None):
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return app.response_class(json.dumps(_VERSION), mimetype="application/json")
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@app.route("/info")
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@app.route("/<ver>/info")
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def info(ver=None):
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return app.response_class(json.dumps(_INFO), mimetype="application/json")
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@app.route("/containers/json")
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@app.route("/<ver>/containers/json")
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def containers(ver=None):
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return app.response_class(json.dumps(_CONTAINERS), mimetype="application/json")
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@app.route("/images/json")
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@app.route("/<ver>/images/json")
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def images(ver=None):
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return app.response_class(json.dumps([]), mimetype="application/json")
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@app.route("/", defaults={"path": ""})
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@app.route("/<path:path>", methods=["GET", "POST", "PUT", "DELETE"])
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def catch_all(path):
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return app.response_class(
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json.dumps({"message": "page not found", "response": 404}),
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status=404,
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mimetype="application/json",
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)
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if __name__ == "__main__":
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_log("startup", msg=f"Docker API server starting as {NODE_NAME}")
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app.run(host="0.0.0.0", port=2375, debug=False) # nosec B104
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