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improve documentation regarding docker cluster 

instead of trying to highlight stuff within markdown code blocks, this commits adds a descriptive sentence explaining the differences.
release-3.2
tobilarscheid 2017-01-13 09:20:37 +01:00
parent c624caabb1
commit 3d97da0672
1 changed files with 18 additions and 16 deletions
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34
Documentation/v2/docker_guide.md
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@ -42,53 +42,55 @@ etcdctl -C http://192.168.12.50:4001 member list
Using Docker to setup a multi-node cluster is very similar to the standalone mode configuration.
The main difference being the value used for the `-initial-cluster` flag, which must contain the peer urls for each etcd member in the cluster.
**Although the following commands look the same, please note that _-name_, _-advertise-client-urls_ and _-initial-advertise-peer-urls_ differ between the cluster members!**
### etcd0
<pre>
```
docker run -d -v /usr/share/ca-certificates/:/etc/ssl/certs -p 4001:4001 -p 2380:2380 -p 2379:2379 \
--name etcd quay.io/coreos/etcd \
<b>-name etcd0</b> \
<b>-advertise-client-urls http://192.168.12.50:2379,http://192.168.12.50:4001</b> \
-name etcd0 \
-advertise-client-urls http://192.168.12.50:2379,http://192.168.12.50:4001 \
-listen-client-urls http://0.0.0.0:2379,http://0.0.0.0:4001 \
<b>-initial-advertise-peer-urls http://192.168.12.50:2380</b> \
-initial-advertise-peer-urls http://192.168.12.50:2380 \
-listen-peer-urls http://0.0.0.0:2380 \
-initial-cluster-token etcd-cluster-1 \
-initial-cluster etcd0=http://192.168.12.50:2380,etcd1=http://192.168.12.51:2380,etcd2=http://192.168.12.52:2380 \
-initial-cluster-state new
</pre>
```
### etcd1
<pre>
```
docker run -d -v /usr/share/ca-certificates/:/etc/ssl/certs -p 4001:4001 -p 2380:2380 -p 2379:2379 \
--name etcd quay.io/coreos/etcd \
<b>-name etcd1</b> \
<b>-advertise-client-urls http://192.168.12.51:2379,http://192.168.12.51:4001</b> \
-name etcd1 \
-advertise-client-urls http://192.168.12.51:2379,http://192.168.12.51:4001 \
-listen-client-urls http://0.0.0.0:2379,http://0.0.0.0:4001 \
<b>-initial-advertise-peer-urls http://192.168.12.51:2380</b> \
-initial-advertise-peer-urls http://192.168.12.51:2380 \
-listen-peer-urls http://0.0.0.0:2380 \
-initial-cluster-token etcd-cluster-1 \
-initial-cluster etcd0=http://192.168.12.50:2380,etcd1=http://192.168.12.51:2380,etcd2=http://192.168.12.52:2380 \
-initial-cluster-state new
</pre>
```
### etcd2
<pre>
```
docker run -d -v /usr/share/ca-certificates/:/etc/ssl/certs -p 4001:4001 -p 2380:2380 -p 2379:2379 \
--name etcd quay.io/coreos/etcd \
<b>-name etcd2</b> \
<b>-advertise-client-urls http://192.168.12.52:2379,http://192.168.12.52:4001</b> \
-name etcd2 \
-advertise-client-urls http://192.168.12.52:2379,http://192.168.12.52:4001 \
-listen-client-urls http://0.0.0.0:2379,http://0.0.0.0:4001 \
<b>-initial-advertise-peer-urls http://192.168.12.52:2380</b> \
-initial-advertise-peer-urls http://192.168.12.52:2380 \
-listen-peer-urls http://0.0.0.0:2380 \
-initial-cluster-token etcd-cluster-1 \
-initial-cluster etcd0=http://192.168.12.50:2380,etcd1=http://192.168.12.51:2380,etcd2=http://192.168.12.52:2380 \
-initial-cluster-state new
</pre>
```
Once the cluster has been bootstrapped etcd clients can be configured with a list of etcd members:
```
etcdctl -C http://192.168.12.50:2379,http://192.168.12.51:2379,http://192.168.12.52:2379 member list
```
```