├── .gitignore
├── Dockerfile
├── LICENSE
└── README.md


/.gitignore:
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 1 | # Binaries for programs and plugins
 2 | *.exe
 3 | *.dll
 4 | *.so
 5 | *.dylib
 6 | 
 7 | # Test binary, build with `go test -c`
 8 | *.test
 9 | 
10 | # Output of the go coverage tool, specifically when used with LiteIDE
11 | *.out
12 | 
13 | # Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
14 | .glide/
15 | 


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/Dockerfile:
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1 | FROM alpine:latest
2 | 
3 | RUN apk add --no-cache socat 
4 | 
5 | ENV IN="172.18.0.1:9323" \
6 |     OUT="9323"
7 | 
8 | ENTRYPOINT socat -d -d TCP-L:$OUT,fork TCP:$IN
9 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | MIT License
 2 | 
 3 | Copyright (c) 2017 Stefan Prodan
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


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/README.md:
--------------------------------------------------------------------------------
 1 | # dockerd-exporter
 2 | 
 3 | [![Docker Image](https://images.microbadger.com/badges/image/stefanprodan/dockerd-exporter.svg)](https://hub.docker.com/r/stefanprodan/dockerd-exporter/)
 4 | 
 5 | Prometheus Docker daemon metrics exporter
 6 | 
 7 | ### Docker Engine 
 8 | 
 9 | Create or edit /etc/systemd/system/docker.service.d/docker.conf, 
10 | enable the experimental feature and set the metrics address to 0.0.0.0:
11 | 
12 | ```
13 | [Service]
14 | ExecStart=
15 | ExecStart=/usr/bin/dockerd -H fd:// \
16 |   --storage-driver=overlay2 \
17 |   --dns 8.8.4.4 --dns 8.8.8.8 \
18 |   --log-driver json-file \
19 |   --log-opt max-size=50m --log-opt max-file=10 \
20 |   --experimental=true \
21 |   --metrics-addr 0.0.0.0:9323
22 | ```
23 | 
24 | Check if the docker_gwbridge ip address is `172.18.0.1`:
25 | 
26 | ```bash
27 |  docker run --rm --net host alpine ip -o addr show docker_gwbridge
28 | ```
29 | 
30 | ### Docker Swarm 
31 | 
32 | Create an overlay network:
33 | 
34 | ```sh
35 | docker network create \
36 |   --driver overlay \
37 |   netmon
38 | ```
39 | 
40 | Create dockerd-exporter global service (replace 172.18.0.1 with your docker_gwbridge address):
41 | 
42 | ```sh
43 | docker service create -d \
44 |   --mode global \
45 |   --name dockerd-exporter \
46 |   --network netmon \
47 |   -e IN="172.18.0.1:9323" \
48 |   -e OUT="9323" \
49 |   stefanprodan/dockerd-exporter:latest
50 | ```
51 | 
52 | Configure Prometheus to scrape the dockerd-exporter instances:
53 | 
54 | ```
55 | scrape_configs:
56 | - job_name: 'dockerd-exporter'
57 |   dns_sd_configs:
58 |   - names:
59 |     - 'tasks.dockerd-exporter'
60 |     type: 'A'
61 |     port: 9323
62 | ```
63 | 
64 | Run Prometheus on the same overlay network as dockerd-exporter.
65 | 


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