Convert AllNodesExtraConfig to support composable roles

This adjusts the interface to OS::TripleO::AllNodesExtraConfig so
it supports custom/composable/optional roles.

Note this does break backwards compatibility, and I can't see any way
to avoid that.  I've converted the in-tree templates, and we'll have
to document carefully and or provide a script (or automated conversion
via mistral perhaps?) to allow folks to easily adjust any out of tree
templates to the new format.

Basically you just have to:

1. Remove all the *_servers parameters, replace with one "servers"
   json parameter

2. Replace references to e.g "controller_servers" with "servers, Controller"
   which does a path-based lookup into the json map provided by overcloud.yaml

Change-Id: I5eebf853646b2f6300d6b542fcd4f43e82d3b413
Partially-Implements: blueprint custom-roles

1 files changed, 51 insertions, 0 deletions

diff --git a/extraconfig/all_nodes/random_string.j2.yaml b/extraconfig/all_nodes/random_string.j2.yaml
new file mode 100644
index 00000000..1c42cb85
--- /dev/null
+++ b/extraconfig/all_nodes/random_string.j2.yaml
@@ -0,0 +1,51 @@
+heat_template_version: 2014-10-16
+
+description: >
+  Example extra config for cluster config
+  this example deploys a random string to all controller and compute
+  nodes, showing how data may be shared amongst nodes, vs the
+  other ExtraConfig interfaces which act only on individual nodes.
+
+# Parameters passed from the parent template - note if you maintain
+# out-of-tree templates they may require additional parameters if the
+# in-tree templates add a new role.
+parameters:
+  servers:
+    type: json
+# Note extra parameters can be defined, then passed data via the
+# environment parameter_defaults, without modifying the parent template
+
+resources:
+
+  Random:
+    type: OS::Heat::RandomString
+
+  RandomConfig:
+    type: OS::Heat::SoftwareConfig
+    properties:
+      group: script
+      inputs:
+      - name: random_value
+      config: |
+        #!/bin/sh
+        echo $random_value > /root/random_value
+
+  RandomDeploymentsController:
+    type: OS::Heat::SoftwareDeployments
+    properties:
+      name: RandomDeploymentsController
+      servers:  {get_param: servers, Controller}
+      config: {get_resource: RandomConfig}
+      actions: ['CREATE'] # Only do this on CREATE
+      input_values:
+        random_value: {get_attr: [Random, value]}
+
+  RandomDeploymentsCompute:
+    type: OS::Heat::SoftwareDeployments
+    properties:
+      name: RandomDeploymentsCompute
+      servers:  {get_param: servers, Compute}
+      config: {get_resource: RandomConfig}
+      actions: ['CREATE'] # Only do this on CREATE
+      input_values:
+        random_value: {get_attr: [Random, value]}