BIND 9 running on Alpine Linux

What is BIND?

BIND (also called "named") is the first, oldest, and most widely deployed DNS solution. It's the de facto standard on Unix-like operating systems. It is currently developed by the Internet Software Consortium.

What is Alpine Linux?

Alpine Linux is built around musl libc and busybox. This makes it smaller and more resource efficient, the base image only being 5MiB in size. It's a perfect fit for the Docker ecosystem.

Supported architectures

Architecture	Tag
amd64/x86_64	latest-amd64
arm32v7/armhf	latest-arm
aarch64/arm64	latest-arm64

How to use this image:

docker run -d \
  --name bind9 \
  -p 53:53 \
  -p 53:53/udp \
  -v /path/to/named.conf:/etc/bind/named.conf \
  -v /path/to/example.com.zone:/var/bind/pri/example.com.zone \
  mjkaye/bind9-alpine

Parameters

Container images are configured using parameters passed at run-time (such as those above). These parameters are separated by a colon and indicate <host>:<container> respectively. For example, -p 8053:53 would expose TCP port 53 from inside the container to be accessible from the host's IP on port 8053. Similarly, when mapping volumes with the -v option, host paths to left of the colon are mapped to the container paths to the right of the colon.

Parameter	Function
`-p 53:53`	container's BIND will listen on host's TCP port 53
`-p 53:53/udp`	container's BIND will listen on host's UDP port 53
`-v :/etc/bind/named.conf`	maps BIND configuration file to specified path on the host
`-v :/var/bind/pri/example.com.zone`	maps zone file between container and host (optional)

named.conf

The following directives should be set in your named.conf.

Directive and value	Notes
`directory "/var/bind";`
`pid-file "/var/run/named/named.pid";`
`listen-on { 172.17/16; };`	if you're running in normal mode
`listen-on { 10/8; };`	if you're running in swarm mode

Zone files should be included in the normal manner.

Support

Changelog

9.14.12-r0: - Alpine release 3.12.0; bump BIND version to 9.14.12-r0.
9.14.8-r5: - Alpine release 3.11.6; bump BIND version to 9.14.8-r5; support architectures arm32v7, aarch64, and amd64; use --no-cache with apk add.

Thank you

Thank you for using bind9-alpine.

Do you like this Docker image? Donations help me to devote more time to improving these images. My current focus is testing this in Swarm Mode and improving the documentation. Even the smallest donation is a big help.