This image serves as a host or container monitor using Netdata. Usually coupled with my alpine-influxdb image which has the OpenTSDB listener enabled to collect the metrics, and alpine-grafana to visualize the metrics.
Based on Alpine Linux from my alpine-s6 image with the s6 init system overlayed in it.
Auto updated according to the github releases.
The image is tagged respectively for the following architectures,
- armhf
- armv7l
- aarch64
- x86_64 (retagged as the
latest)
non-x86_64 builds have embedded binfmt_misc support and contain the qemu-user-static binary that allows for running it also inside an x86_64 environment that has it.
Pull the image for your architecture it's already available from Docker Hub.
# make pull
docker pull woahbase/alpine-netdata:x86_64
If you want to run images for other architectures, you will need to have binfmt support configured for your machine. multiarch, has made it easy for us containing that into a docker container.
# make regbinfmt
docker run --rm --privileged multiarch/qemu-user-static:register --reset
Without the above, you can still run the image that is made for your architecture, e.g for an x86_64 machine..
This image already has a user netdata configured to drop
privileges to the passed PUID/PGID which is ideal if its used
to run in non-root mode. That way you only need to specify the
values at runtime and pass the -u netdata if need be. (run id
in your terminal to see your own PUID/PGID values.)
Running make starts the host monitor service.
Configs are read from /etc/netdata/netdata.conf. Use the default or mount
your own here. The example below has the /proc and /sys mount and privilege
to monitor the host.
# make
docker run --rm -it \
--cap-add SYS_PTRACE \
--name docker_netdata --hostname netdata \
-e PGID=100 -e PUID=1000 \
-p 19999:19999
-v /etc/hosts:/etc/hosts:ro \
-v /etc/localtime:/etc/localtime:ro \
-v /proc:/host/proc:ro \
-v /sys:/host/sys:ro \
-v netdata.conf:/etc/netdata/netdata.conf \
woahbase/alpine-netdata:x86_64
Stop the container with a timeout, (defaults to 2 seconds)
# make stop
docker stop -t 2 docker_netdata
Removes the container, (always better to stop it first and -f
only when needed most)
# make rm
docker rm -f docker_netdata
Restart the container with
# make restart
docker restart docker_netdata
Get a shell inside a already running container,
# make debug
docker exec -it docker_netdata /bin/bash
set user or login as root,
# make rdebug
docker exec -u root -it docker_netdata /bin/bash
To check logs of a running container in real time
# make logs
docker logs -f docker_netdata
If you have the repository access, you can clone and build the image yourself for your own system, and can push after.
Before you clone the repo, you must have Git, GNU make, and Docker setup on the machine.
git clone https://github.com/woahbase/alpine-netdata
cd alpine-netdata
You can always skip installing make but you will have to type the whole docker commands then instead of using the sweet make targets.
You need to have binfmt_misc configured in your system to be able to build images for other architectures.
Otherwise to locally build the image for your system.
[ARCH defaults to x86_64, need to be explicit when building
for other architectures.]
# make ARCH=x86_64 build
# sets up binfmt if not x86_64
docker build --rm --compress --force-rm \
--no-cache=true --pull \
-f ./Dockerfile_x86_64 \
--build-arg DOCKERSRC=woahbase/alpine-s6:x86_64 \
--build-arg PGID=1000 \
--build-arg PUID=1000 \
-t woahbase/alpine-netdata:x86_64 \
.
It may take a bit of time to start it. To check if its working..
# make ARCH=x86_64 test
docker run --rm -it \
--name docker_netdata --hostname netdata \
-e PGID=1000 -e PUID=1000 \
woahbase/alpine-netdata:x86_64 \
sh -ec 'netdata -V'
And finally, if you have push access,
# make ARCH=x86_64 push
docker push woahbase/alpine-netdata:x86_64
Sources at Github. Built at Travis-CI.org (armhf / x64 builds). Images at Docker hub. Metadata at Microbadger.
Maintained by WOAHBase.