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@@ -1,4 +1,4 @@
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-## Running
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+# Running flannel
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Once you have pushed configuration JSON to `etcd`, you can start `flanneld`. If you published your config at the default location, you can start `flanneld` with no arguments.
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@@ -8,16 +8,18 @@ It will also monitor `etcd` for new members of the network and adjust the routes
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After flannel has acquired the subnet and configured backend, it will write out an environment variable file (`/run/flannel/subnet.env` by default) with subnet address and MTU that it supports.
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+For more information on checking the IP range for a specific host, see [Leases and Reservations][leases].
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+
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## Multiple networks
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-Flanneld does not support multiple from a single daemon (it did previously as an experimental feature).
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-However, it does support running multiple daemons on the same host with different configuration. The `-subnet-file` and `-etcd-prefix` options should be used to "namespace" the different daemons.
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+Flanneld does not support running multiple networks from a single daemon (it did previously as an experimental feature).
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+However, it does support running multiple daemons on the same host with different configurations. The `-subnet-file` and `-etcd-prefix` options should be used to "namespace" the different daemons.
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For example
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```
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flanneld -subnet-file /vxlan.env -etcd-prefix=/vxlan/network
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```
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-### Running manually
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+## Running manually
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1. Download a `flannel` binary.
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```bash
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@@ -45,7 +47,7 @@ FLANNEL_MTU=1450
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FLANNEL_IPMASQ=false
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```
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-### Interface selection
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+## Interface selection
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Flannel uses the interface selected to register itself in the datastore.
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@@ -58,7 +60,7 @@ The combination of the defaults, the autodetection and these two flags ultimatel
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* An IP address for that interface.
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* A public IP that can be used for reaching this node. In `host-gw` it should match the interface address.
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-### Making changes at runtime
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+## Making changes at runtime
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Please be aware of the following flannel runtime limitations.
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* The datastore type cannot be changed.
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@@ -107,3 +109,4 @@ Also, to avoid interruptions during restart, the configuration must not be chang
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[coreos-etcd]: https://github.com/coreos/etcd/blob/master/Documentation/dev-guide/local_cluster.md
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[configuring-flannel]: https://coreos.com/docs/cluster-management/setup/flannel-config/
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+[leases]: reservations.md
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Beth Wright