Yeah I have tried most of these combinations.
So let me explain it more in detail.
Running docker on a server with linux fedora 30.
docker daemon.json file
{
"metrics-addr" : "127.0.0.1:9323",
"experimental" : true}
Both are set.
So in this file I tried couple of different values for metrics-addr like
the server IP x.x.x.x:9323 or 127.0.01:9323 or 0.0.0.0:9323.
In prometheus.yml
- job_name: 'docker'
# metrics_path defaults to '/metrics'
# scheme defaults to 'http'.
static_configs:
- targets: ['localhost:9323']
In targets:[x.x.x.x:9323]
Note if x.x.x.x:9323 id present in daemon.json then same target IP is in
prometheus.yml.
This is done for 127.0.0.1:9323 and 0.0.0.0:9323.
And I try to reach the x.x.x.x:9323 from another VM.
I have configured 3 targets on prometheus and are scraping metrics.
Only docker is down.
Thank you
On Wednesday, April 15, 2020 at 6:44:09 PM UTC+5:30, Julius Volz wrote:
>
> Oh, and since you mentioned that Prometheus is running in a container:
> each container will have its own network namespace (at least by default),
> so that it will have its own idea of "localhost" / "127.0.0.1", so it will
> not be able to connect to the host machine's 9323 under that address.
> You'll need to provide the host machine's host name or IP and ensure that
> is reachable.
>
> On Wed, Apr 15, 2020 at 3:11 PM Julius Volz <[email protected]
> <javascript:>> wrote:
>
>> According to https://docs.docker.com/config/daemon/prometheus/ you also
>> need the '"experimental": true' setting in your daemon.json, do you have
>> that as well?
>>
>> If yes, could you provide more information on the problem? Can you reach
>> http://127.0.0.1:9323/metrics manually from that host? Note that if you
>> specify 127.0.0.1 as the IP to listen on, you will not be able to scrape
>> the endpoint from another host. If you want to make the metrics endpoint
>> reachable from other hosts, you'll likely want just ":9323" or
>> "<machine-ip>:9323".
>>
>> On Wed, Apr 15, 2020 at 12:41 PM Isabel Noronha <[email protected]
>> <javascript:>> wrote:
>>
>>> Hi,
>>> I am unable to scrape docker metrics using Prometheus.
>>> I tried metric addr: "127.0.0.1:9323" in daemon.json file
>>>
>>> Note Prometheus is running in a container.
>>>
>>> Any help would be appreciated.
>>>
>>> Thank you,
>>> Isabel
>>>
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