Merge branch 'latest_release_doc_updates' into 1.0
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@@ -9,7 +9,7 @@ Weave has a few more features beyond those illustrated by the [basic
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example](https://github.com/weaveworks/weave#example):
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* [Virtual ethernet switch](#virtual-ethernet-switch)
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* [Manual addressing](#manual-addressing)
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* [Address allocation](#addressing)
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* [Application isolation](#application-isolation)
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* [Dynamic network attachment](#dynamic-network-attachment)
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* [Security](#security)
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@@ -54,13 +54,25 @@ now re-use the same tools and techniques when deploying applications
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as containers as we would have done when deploying them 'on metal' in
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our data centre.
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### <a name="manual-addressing"></a>Manual addressing
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### <a name="addressing"></a>Address allocation
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The examples so far have leveraged weave's [address allocation](ipam.html)
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and [discovery](#dns) features, meaning that we've not had to concern
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ourselves with IP addresses at all. It is, however, possible to
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specify address and network explicitly using [CIDR
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notation](http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing#CIDR_notation)
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Containers are automatically allocated an IP address that is unique
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across the weave network. You can see which address was allocated with
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[`weave ps`](troubleshooting.html#list-attached-containers):
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host1$ weave ps a1
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a7aee7233393 7a:44:d3:11:10:70 10.128.0.2/10
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Weave detects when a container has exited and releases its
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automatically allocated addresses so they can be re-used.
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See the [Automatic IP Address Management](#ipam) documentation for
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further details.
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Instead of getting weave to allocate IP addresses automatically, it is
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also possible to specify an address and network explicitly, expressed
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in
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[CIDR notation](http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing#CIDR_notation)
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- let's see how the first example would have looked:
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On $HOST1:
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+6
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@@ -5,10 +5,13 @@ layout: default
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# Automatic IP Address Management
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Weave can automatically assign containers an IP address that is unique
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across the network.
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Weave automatically assigns containers an IP address that is unique
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across the network, and releases that address when a container
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exits. This happens for all invocations of the `run`, `start`,
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`attach`, `detach`, `expose`, `hide` and `launch-dns` commands, unless
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the user explictly specified an address. Weave can also assign
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addresses in multiple subnets.
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* [Usage](#usage)
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* [Initialisation](#initialisation)
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* [Choosing an allocation range](#range)
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* [Automatic allocation across multiple subnets](#subnets)
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@@ -16,27 +19,6 @@ across the network.
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* [Stopping and removing peers](#stop)
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* [Troubleshooting](#troubleshooting)
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## <a name="usage"></a>Usage
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Containers are automatically allocated an IP address when none is
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specified when the container is started, e.g.
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host1$ weave launch && weave launch-proxy
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host1$ eval $(weave proxy-env)
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host1$ C=$(docker run -ti ubuntu)
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You can see which address was allocated with
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[`weave ps`](troubleshooting.html#list-attached-containers):
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host1$ weave ps $C
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a7aff7249393 7a:51:d1:09:21:78 10.128.0.1/10
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Weave detects when a container has exited and releases its
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automatically allocated addresses so they can be re-used.
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Automatic IP address assignment is available for the `run`, `start`,
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`attach`, `detach`, `expose`, `hide` and `launch-dns` commands.
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## <a name="initialisation"></a>Initialisation
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Just once, when the first automatic IP address allocation is requested
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