This project permit to use dnsmasq under a docker container. The dnsmasq configuration could be update after container. The container is base on docker-base container.
To install this container clone the repository run dnsmasq.sh build to build container.
You can customize image's name with FFERRIERE_DNSMASQ_IMAGE variable.
Example :
$ FFERRIERE_DNSMASQ_IMAGE='prefix/dnsmasq' ./dnsmasqh.sh build
You can edit dnsmasq config after run container. You do run dnsmasq.sh reload or touch path_dnsmasq/reload file. By default path_dnsmasq is dnsmasq folder of this project. You can change it with -s|--src option of dnsmasq.sh
For systemd user it's possible to run sudo dnsmasq.sh install. Run sudo systemctl enable docker-dnsmasq for run container at boot.
The dnsmask.sh script permit to run,stop,... container or reload configuration.
You can customize container's name with FFERRIERE_DNSMASQ_NAME variable.
Example:
$ FFERRIERE_DNSMASQ_NAME='prefix-dnsmasq' ./dnsmasq.sh run
Read the ./dnsmasq.sh help content to use the script :
$ ./dnsmasq.sh help
run.sh [CMD] [OPTIONS]
use FFERRIERE_DNSMASQ_IMAGE to customize container image's name
use FFERRIERE_DNSMASQ_NAME to customize container's name
use FFERRIERE_DNSMASQ_CNF to customize dnsmasq configuration directory
CMD:
build to build container (you can use docker build options after --)
stop to stop container
rm to remove container
stop-rm to stop and remove contaier
resolv to modify resolv.conf file with ip address of dnsmasq container
help to show this message
install to install container at boot with systemd, you must to run this command with root or with sudo
uninstall to uninstall container at boot, you must to run this command with root or sudo
run to start the container
[OPTIONS]:
-f | --fg to run container on foreground (default is deamon run)
-s | --src to give the dnsmasq folder link with /etc/dnsmasq on container (this option override FFERRIERE_DNSMASQ_CNF)
dry-run generate the docker run command and show it
reload to reload the dnsmasq configuration
you can use -s | --src option with this command as with run command
Thanks to creator of dnsmasq and to Pascal Martin (@pmartin (on github) and @pascal_martin (on twitter)) with his presentation
$ export FFERRIERE_DNSMASQ_IMAGE='my-company/dnsmasq-for-containers'
$ ./dnsmasq.sh build # not run each time, only first time
$ export FFERRIERE_DNSMASQ_NAME='my-company-dnsmasq-for-containers'
$ export FFERRIERE_DNSMASQ_CNF='/path/of/config/for/containers'
$ ./dnsmasq.sh run
$ docker run --rm -ti --dns=$(docker inspect -f "{{.NetworkSettings.IPAddress}}" $FFERRIERE_DNSMASQ_NAME) fferriere/base /bin/bash
This example run a dnsmasq container with particular informations. Run a second container with dnsmasq IP on dns for the new container.
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