通过dns更新用docker主机更新bind nameserver区域。
docker-hostdns的Python项目详细描述
用法
docker hostdns 可以通过 docker hostdns包装脚本运行，也可以直接使用 python -m docker hostdns
usage: docker-entrypoint [-h] [--zone ZONE] [--dns-server DNS_SERVER]
[--dns-key-secret DNS_KEY_SECRET]
[--dns-key-name DNS_KEY_NAME]
[--dns-key-alg {...}]
[--name NAME] [--network NETWORK] [--verbose]
[--syslog [SYSLOG]] [--clear-on-exit]
Update BIND nameserver zone with Docker hosts via DNS Updates.
optional arguments:
-h, --help show this help message and exit
--zone ZONE dns zone to update, defaults to "docker"
--dns-server DNS_SERVER
address of DNS server which will be updated, defaults
to 127.0.0.1
--dns-key-secret DNS_KEY_SECRET
DNS Server key secret for use when updating zone, use
'-' to read from stdin
--dns-key-name DNS_KEY_NAME
DNS Server key name for use when updating zone
--dns-key-alg {...}
DNS Server key algorithm for use when updating zone
--name NAME name to differentiate between multiple instances
inside same dns zone, defaults to current hostname
--network NETWORK network to fetch container names from, defaults to
docker default bridge, can be used multiple times
--verbose, -v give more output - option is additive, and can be used
up to 3 times
--syslog [SYSLOG] enable logging to syslog, defaults to "/dev/log", you
can provide path to unix socket or uri:
<tcp|udp|unix>://<path_or_host>[:<port>]
--clear-on-exit clear zone on exit
只有在安装了python-daemon3包之后， --daemonize选项才可用。
示例 named.conf 带密钥验证的区域配置：
include "/etc/bind/docker.key";
zone "docker" in {
type master;
file "/var/bind/dyn/docker.zone";
allow-update {
key "docker-key";
};
};
docker.key 可由以下项生成：
rndc-confgen -a -c docker.key -k docker-key
然后：
echo'my base64 key secret'| docker-hostdns --dns-key-name docker-key --dns-key-secret -
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