Merge pull request #2842 from edx/bbeggs/go-server

Adding go-server auto register key.

playbooks/roles/go-server/defaults/main.yml

@@ -42,3 +42,6 @@ GO_SERVER_OAUTH_LOGIN_JAR_DESTINATION: "{{ GO_SERVER_HOME }}/plugins/external/"
 GO_SERVER_PASSWORD_FILE_NAME: "password.txt"
 GO_SERVER_ADMIN_USERS: ["admin"]
 GO_SERVER_CRUISE_CONTROL_DB_DESTIONATION: "/var/lib/go-server/db/h2db/cruise.h2.db"
+
+# key for go-agents to autoregister with the go-server
+GO_SERVER_AUTO_REGISTER_KEY: "dev-only-override-this-key"
\ No newline at end of file

playbooks/roles/go-server/templates/edx/app/go-server/cruise-config.xml.j2

 <cruise xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="cruise-config.xsd" schemaVersion="77">
-  <server artifactsdir="artifacts" siteUrl="http://{{ ansible_fqdn }}:8153" secureSiteUrl="https://{{ ansible_fqdn }}:8154" commandRepositoryLocation="default" serverId="d3a0287d-7698-4afe-a687-c165e8295918">
+  <server artifactsdir="artifacts" siteUrl="http://{{ ansible_fqdn }}:8153" secureSiteUrl="https://{{ ansible_fqdn }}:8154" commandRepositoryLocation="default" serverId="d3a0287d-7698-4afe-a687-c165e8295918" agentAutoRegisterKey="{{ GO_SERVER_AUTO_REGISTER_KEY }}">
     <security>
       <passwordFile path="{{ GO_SERVER_CONF_HOME }}/{{ GO_SERVER_PASSWORD_FILE_NAME }}" />
       <admins>