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Add firewall configuration section to README #460

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18 changes: 18 additions & 0 deletions cluster-api/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,24 @@ To learn more, see the full [Cluster API proposal][proposal].
### Prerequisites
* `kubectl` is required, see [here](http://kubernetes.io/docs/user-guide/prereqs/).

### Enabling network access to your cluster

The cluster-api binary communicates over TCP port 443 with the master and
nodes. Prior to creating your cluster, you will need to create a firewall
rule in your GCP environment to enable this access:

1. Log into the [GCP console](https://console.cloud.google.com)
2. Click on the menu icon in the top left hand corner and select
"VPC Network" and then "Firewall rules".
3. Click on the "Create a firewall rule" button.
4. Provide a name for the firewall rule.
5. Under Targets, select "Specified Target Tags"
6. For enhanced security, enter "https-server" in the "Target tags" field.
7. Complete the "Source IP Ranges" field.
8. For enhanced security, select "Specified protocols and ports" and enter
"tcp:443" in the text entry field.
9. Click on the create button.

### Prototype implementations
* [gcp machine controller](https://github.com/kubernetes/kube-deploy/blob/master/cluster-api-gcp/README.md)

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