根据 cadvisor 文档(https://github.com/google/cadvisor/blob/master/docs/runtime_options.md#metrics),使用选项 collector_cert 和 collector_key 应该在 Prometheus 端点上启用 TLS。
我使用以下命令启动了 cadvisor 容器:
docker run --rm -d --volume=/:/rootfs:ro --volume=/tmp/cadvisor.crt:/etc/ssl/cadvisor.crt --volume=/tmp/cadvisor.key:/etc/ssl/cadvisor.key --volume=/var/run:/var/run:rw --volume=/sys:/sys:ro --volume=/var/lib/docker/:/var/lib/docker:ro --publish=8080:8080 --name=cadvisor gcr.io/cadvisor/cadvisor:latest --collector_cert=/etc/ssl/cadvisor.crt --collector_key=/etc/ssl/cadvisor.key
但是当我尝试使用访问指标时curl https://127.0.0.1:8080/metrics -v
,出现以下错误:
* Trying 127.0.0.1:8080...
* TCP_NODELAY set
* Connected to 127.0.0.1 (127.0.0.1) port 8080 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/ssl/certs/ca-certificates.crt
CApath: /etc/ssl/certs
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* error:1408F10B:SSL routines:ssl3_get_record:wrong version number
* Closing connection 0
curl: (35) error:1408F10B:SSL routines:ssl3_get_record:wrong version number
另一方面,使用curl http://127.0.0.1:8080/metrics -v
返回 docker 主机指标
* Trying 127.0.0.1:8080...
* TCP_NODELAY set
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0* Connected to 127.0.0.1 (127.0.0.1) port 8080 (#0)
> GET /metrics HTTP/1.1
> Host: 127.0.0.1:8080
> User-Agent: curl/7.68.0
> Accept: */*
>
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Content-Type: text/plain; version=0.0.4; charset=utf-8
< Date: Mon, 01 Feb 2021 11:03:33 GMT
< Transfer-Encoding: chunked
<
{ [12148 bytes data]
100 300k 0 300k 0 0 4421k 0 --:--:-- --:--:-- --:--:-- 4357k
* Connection #0 to host 127.0.0.1 left intact
任何指针将不胜感激。