Merge pull request #548 from coreos/multi-controller

examples/terraform: Add tfvars showing multi-controller case

examples/terraform/bootkube-install/README.md

@@ -57,8 +57,12 @@ k8s_domain_name = "cluster.example.com"
 asset_dir = "assets"
 ```
 
+### Options
+
 You may set `experimental_self_hosted_etcd = "true"` to deploy "self-hosted" etcd atop Kubernetes instead of running etcd on hosts directly. Warning, this is experimental and potentially dangerous.
 
+The example above defines a Kubernetes cluster with 1 controller and 2 workers. Check the `multi-controller.tfvars.example` for an example which defines 3 controllers and one worker.
+
 ## Apply
 
 Fetch the [bootkube](../README.md#modules) Terraform [module](https://www.terraform.io/docs/modules/index.html) for bare-metal, which is maintained in the in the matchbox repo.

examples/terraform/bootkube-install/multi-controller.tfvars.example

@@ -0,0 +1,23 @@
+matchbox_http_endpoint = "http://matchbox.example.com:8080"
+matchbox_rpc_endpoint = "matchbox.example.com:8081"
+# ssh_authorized_key = "ADD ME"
+
+cluster_name = "example"
+container_linux_version = "1353.7.0"
+container_linux_channel = "stable"
+
+# Machines
+controller_names = ["node1", "node2", "node3"]
+controller_macs = ["52:54:00:a1:9c:ae", "52:54:00:b2:2f:86", "52:54:00:c3:61:77"]
+controller_domains = ["node1.example.com", "node2.example.com", "node3.example.com"]
+worker_names = ["node4"]
+worker_macs = ["52:54:00:d7:99:c7"]
+worker_domains = ["node4.example.com"]
+
+# Bootkube
+k8s_domain_name = "cluster.example.com"
+asset_dir = "assets"
+
+# Optional
+# container_linux_oem = ""
+# experimental_self_hosted_etcd = "true"