Update a /etc/hosts-style file to add docker containers to resolve locally on the host. The application will run until an error occurs and will watch for events from the docker daemon, keeping the file up to date.
It will not remove existing host definitions from a file, so it can be safely used with /etc/hosts directly.
Usage: docker-hosts [/etc/hosts [docker]]
The first argument specifies the target file, the second argument specifies the TLD (docker by default, you might want to use an actual domain because someone registering the docker TLD might lead to some trouble).
Each docker container will be added as <container-name>.docker, <container-short-id>.docker.
Which network will be used for containers with multiple networks is undefined behaviour.
Tip: if you want to use this on a dedicated DNS server instead of using the hosts file directly, I suggest using CoreDNS with the hosts plugin.
If Go, is installed, Docker Hosts can be installed simply by running git clone https://github.com/moqmar/docker-hosts && cd docker-hosts && go install ..
If you want to install the binary version (for 64-bit systems), use the following instead:
wget -qO- https://github.com/moqmar/docker-hosts/releases/latest | grep -Eo '/moqmar/docker-hosts/releases/download/[^/]+/docker-hosts' | sudo wget --base=http://github.com/ -i - -O /usr/local/bin/docker-hosts
sudo chmod +x /usr/local/bin/docker-hosts
sudo wget -O /etc/systemd/system/docker-hosts.service https://raw.githubusercontent.com/moqmar/docker-hosts/master/docker-hosts.service
sudo systemctl enable docker-hosts.service
sudo systemctl start docker-hosts.service