Move environment specific variables into examples

Allow easy configuration to local environments

.gitignore

@@ -0,0 +1,3 @@
+# Local environment specific variables
+vars/local_config.yml
+vars/secrets.yml

README.md

@@ -9,9 +9,15 @@ If I have time I will modify the plays to run on AWS as well.
 Create a Kubernetes cluster
 ---------------------------
 
+Copy `vars/local_config.yml.example` to `vars/local_config.yml` and
+update to your needs. These will be ignored by git so you can update
+as you need. Similarly, copy `vars/secrets.yml.example` to `vars/secrets.yml`
+and then use the `ansible-vault` tool to encrypt it, if you need to protect
+it (you'll need to pass `--ask-vault-pass` when running the playbook if you
+do this).
+
     $ ansible-playbook k8s.yml
 
-Some variables can be edited in the `k8s.yml` file.
 This will start a Kubernetes master node and a number of compute nodes.
 
 Check the tasks and templates in `roles/k8s`.

k8s.yml

@@ -1,18 +1,10 @@
 ---
 - hosts: localhost
   connection: local
-  vars:
-    ssh_key: k8s
-    k8s_version: 1.4.0
-    k8s_num_nodes: 2
-    k8s_security_group_name: k8s
-    k8s_node_prefix: kube
-    k8s_username: foobar
-    k8s_password: FdKPSuwQ
-# This template name is specific to http://exoscale.ch, replace it
-    k8s_template: Linux CentOS 7.1 64-bit 50G Disk (2015-03-31-2230b6) 
-    k8s_instance_type: Tiny
+  vars_files:
+  - vars/local_config.yml
+  - vars/secrets.yml
 
   roles:
-    - common
-    - k8s
+  - common
+  - k8s

vars/local_config.yml.example

@@ -0,0 +1,10 @@
+# Update/replace this file with something appropriate to your environment
+ssh_key: k8s
+k8s_version: 1.4.0
+k8s_num_nodes: 2
+k8s_security_group_name: k8s
+k8s_node_prefix: kube
+k8s_username: foobar
+# This template name is specific to http://exoscale.ch, replace it
+k8s_template: Linux CentOS 7.1 64-bit 50G Disk (2015-03-31-2230b6) 
+k8s_instance_type: Tiny

vars/secrets.yml.example

@@ -0,0 +1,2 @@
+# ansible-vault encrypt this file
+k8s_password: FdKPSuwQ