diff --git a/site/plugin.md b/site/plugin.md index a153c821..decaca47 100644 --- a/site/plugin.md +++ b/site/plugin.md @@ -57,6 +57,30 @@ then run your containers using the Docker command-line: 64 bytes from 10.32.0.2: icmp_seq=2 ttl=64 time=0.052 ms +###Creating multiple Docker Networks + +Docker enables you to create multiple independent networks and attach +different sets of containers to each network. However, coordinating +this between hosts, Docker requires that you configure a +["key-value store"](https://docs.docker.com/engine/userguide/networking/get-started-overlay/#step-1-set-up-a-key-value-store). + +If your Docker installation has a key-value store, create a network +based on Weave Net as follows: + + $ docker network create --driver=weave mynetwork + +then use it to connect a container: + + $ docker run --net=mynetwork ... + +or + + $ docker network connect mynetwork somecontainer + +Containers attached to different Docker Networks are +[isolated through subnets](https://www.weave.works/docs/net/latest/using-weave/application-isolation/). + + ###Restarting the Plugin The plugin, like all Weave Net components, is started with a policy of `--restart=always`, so that it is always there after a restart or reboot. If you remove this container (for example, when using `weave reset`) before removing all endpoints created using `--net=weave`, Docker may hang for a long time when it subsequently tries to re-establish communications to the plugin. diff --git a/site/weave-docker-api/using-proxy.md b/site/weave-docker-api/using-proxy.md index cbccc57e..264ceb6a 100644 --- a/site/weave-docker-api/using-proxy.md +++ b/site/weave-docker-api/using-proxy.md @@ -20,9 +20,8 @@ To create and start a container via the Weave Net proxy run: or, equivalently run: - host1$ docker create -ti ubuntu - 5ef831df61d50a1a49272357155a976595e7268e590f0a2c75693337b14e1382 - host1$ docker start 5ef831df61d50a1a49272357155a976595e7268e590f0a2c75693337b14e1382 + host1$ docker create -ti --name=foo ubuntu + host1$ docker start foo Specific IP addresses and networks can be supplied in the `WEAVE_CIDR` environment variable, for example: diff --git a/site/weavedns/managing-domains-weavedns.md b/site/weavedns/managing-domains-weavedns.md index 758a2415..85fa895b 100644 --- a/site/weavedns/managing-domains-weavedns.md +++ b/site/weavedns/managing-domains-weavedns.md @@ -10,12 +10,10 @@ The following topics are discussed: ## Configuring the domain search paths -If you don't supply a domain search path (with `--dns-search=`), -`weave run ...` tells a container to look for "bare" hostnames, like -`pingme`, in its own domain (or in `weave.local` if it has no domain). -That's why you can just invoke `ping pingme` above -- since the -hostname is `ubuntu.weave.local`, it will look for -`pingme.weave.local`. +If you don't supply a domain search path (with `--dns-search=`), Weave +Net (via the [proxy](/site/weave-docker-api.md) or via `weave run`) +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