Managing Domains
The following topics are discussed:
Configuring the domain search paths
If you don’t supply a domain search path (with --dns-search=
), Weave
Net (via the proxy or via weave attach
)
tells a container to look for “bare” hostnames, like pingme
, in its
own domain (or in weave.local
if it has no domain).
If you want to supply other entries for the domain search path,
e.g. if you want containers in different sub-domains to resolve
hostnames across all sub-domains plus some external domains, you need
also to supply the weave.local
domain to retain the above
behaviour.
docker run -ti \
--dns-search=zone1.weave.local --dns-search=zone2.weave.local \
--dns-search=corp1.com --dns-search=corp2.com \
--dns-search=weave.local alpine:latest
Using a different local domain
By default, weaveDNS uses weave.local.
as the domain for names on the
Weave network. In general users do not need to change this domain, but
you can force weaveDNS to use a different domain by launching it with
the --dns-domain
argument. For example,
$ weave launch --dns-domain="mycompany.local."
The local domain should end with local.
, since these names are
link-local as per RFC6762,
(though this is not strictly necessary).