sausix/bind-sql-base-alpine repository overview

⁠bind-sql-base-alpine

Base Docker image containing BIND 9 project of Internet Systems Consortium (https://www.isc.org/bind/⁠)

⁠Goals

• Enabled SQL backend support (with compiled mysql.so)
• Simple base image for widely usable DNS server configurations
• Small Alpine Linux footprint
• Preinstalled Python and pip for extended scripting/templating (or use tag nopython-latest)

⁠Configuration

⁠/container/init.d

The default entrypoint of this image runs /container/init which will invoke all files mounted into /container/init.d/.

That directory may/should be mounted read only. Files don't need to be executable (chmod +x). They need at least have an file extension like file.sh or script.py and start with a correct shebang like: #!/bin/sh.

Contained files are always copied into a temporary directory before being executed. This if for compensating non executable files mounted read only. File attributes can't be fixed on them directly.

This mountpoint is not required if you mount /etc/bind/ with your own config directly.

⁠/container/default-zones

This directory contains some default zone data files.

It may be mounted with custom files.

If mounted, the directory should be mounted read only.

Init scripts contained in /container/init.d/ may copy zone files to an appropriate directory like /var/named/.

This mountpoint is not required.

⁠Volumes

/var/named and /etc/bind are exposed as volumes by the Dockerfile.

Heavily depending on your application of this image you should mount static config and data (read only), persistent (and named) volumes or at least a tmpfs mount.

⁠CMD

This container starts with /bin/sh after a successful run of all init scripts by default if no explicit command has been specified. The actual command to start BIND 9's daemon named should be specified on calling docker run or configured in a docker-compose.yml.

⁠Sample applications

Some basic sample applications and their documentation can be found at:
https://github.com/sausix/docker-bind-applications⁠

⁠License

Sourcecode contained in this respository is licensed under:

GNU GENERAL PUBLIC LICENSE, version 3

BIND 9 (Internet Systems Consortium, Inc., https://www.isc.org⁠) and its components contained in the resulting Docker image are licensed under:

Mozilla Public License, version 2.0