The server run by the Docker image does not respond to requests

[exarkun]

If I start a Prometheus server like this:

jean-paul@dilaton:~$ mkdir /tmp/prometheus                                                                                                                                                     
jean-paul@dilaton:~$ cat /tmp/prometheus.yml 
# vi: set ft=yaml sw=2 :
# Global settings and defaults.
global:
  # By default, scrape targets every 60 seconds.
  scrape_interval: "60s"
  # By default, evaluate alerting and recording rules every 60 seconds.
  evaluation_interval: "60s"

scrape_configs:
- job_name: "prometheus"
  target_groups:
  - targets:
    - "localhost:9090"
jean-paul@dilaton:~$ docker run --rm -v /tmp/prometheus.yml:/prometheus.yml:ro -v /tmp/prometheus:/data -p 9090:9090 prom/prometheus -storage.local.path=/data -config.file=/prometheus.yml -lo
g.level debug                                                                                                                                                                                  
prometheus, version 0.16.1 (branch: stable, revision: 968ee35)
  build user:       @afbbf75ae75d
  build date:       20151016-11:46:24
  go version:       1.5.1
time="2015-10-27T13:21:09Z" level=info msg="Loading configuration file /prometheus.yml" source="main.go:196" 
time="2015-10-27T13:21:09Z" level=info msg="Loading series map and head chunks..." source="storage.go:262" 
time="2015-10-27T13:21:09Z" level=info msg="0 series loaded." source="storage.go:267" 
time="2015-10-27T13:21:09Z" level=info msg="Listening on :9090" source="web.go:223" 
time="2015-10-27T13:21:09Z" level=info msg="Starting target manager..." source="targetmanager.go:114" 
time="2015-10-27T13:21:09Z" level=debug msg="Received potential update for target group \"prometheus:static:0:0\"" source="targetmanager.go:179" 
time="2015-10-27T13:21:09Z" level=debug msg="Starting scraper for target localhost:9090..." source="target.go:313" 

And then submit a request to it like this:

$ curl http://localhost:9090/
curl: (56) Recv failure: Connection reset by peer

Something seems to be wrong. I expected Prometheus to answer my request (even if only with a 404 or a 500 or something). Instead, the connection is closed with no response after a couple seconds.

The exact image on my system is ecf5b3caa2818084751cc936248f9de4237ef00963f7f2c4b601bdcb1ab4fdd0

$ docker version
Client:
 Version:      1.8.3
 API version:  1.20
 Go version:   go1.4.2
 Git commit:   f4bf5c7
 Built:        Mon Oct 12 05:37:18 UTC 2015
 OS/Arch:      linux/amd64

Server:
 Version:      1.8.3
 API version:  1.20
 Go version:   go1.4.2
 Git commit:   f4bf5c7
 Built:        Mon Oct 12 05:37:18 UTC 2015
 OS/Arch:      linux/amd64

[fabxc]

This seems to be an issue with your Docker networking setup rather than Prometheus.

Try setting up a port binding when starting the container (-p 9090:9090) and make sure you are using the correct host. localhost might not be right when using docker-machine (use docker-machine ip to find out the VM IP).

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.