unistack-org/cloudinit
4
0
Fork 0
Code Issues 1 Pull Requests Packages Projects Releases Wiki Activity

Merge pull request #333 from coreos/robszumski-patch-1

Browse Source 
docs: add info about discovery size parameter
This commit is contained in:
Rob Szumski 2015-04-16 12:04:49 -07:00
commit 40429204ba
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
Documentation/cloud-config.md
View File

@ -76,14 +76,16 @@ _Note: The `$private_ipv4` and `$public_ipv4` substitution variables referenced
#### etcd2
The `coreos.etcd2.*` parameters will be translated to a partial systemd unit acting as an etcd configuration file.
If the platform environment supports the templating feature of coreos-cloudinit it is possible to automate etcd configuration with the `$private_ipv4` and `$public_ipv4` fields. For example, the following cloud-config document...
If the platform environment supports the templating feature of coreos-cloudinit it is possible to automate etcd configuration with the `$private_ipv4` and `$public_ipv4` fields. When generating a [discovery token](https://discovery.etcd.io/new?size=3), set the `size` parameter, since etcd uses this to determine if all members have joined the cluster. After the cluster is bootstrapped, it can grow or shrink from this configured size.
For example, the following cloud-config document...
```yaml
#cloud-config
coreos:
etcd2:
# generate a new token for each unique cluster from https://discovery.etcd.io/new
# generate a new token for each unique cluster from https://discovery.etcd.io/new?size=3
discovery: https://discovery.etcd.io/<token>
# multi-region and multi-cloud deployments need to use $public_ipv4
advertise-client-urls: http://$public_ipv4:2379