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, 44 insertions, 0 deletions

diff --git a/extraconfig/all_nodes/swap-partition.j2.yaml b/extraconfig/all_nodes/swap-partition.j2.yaml
new file mode 100644
index 00000000..014a96a1
--- /dev/null
+++ b/extraconfig/all_nodes/swap-partition.j2.yaml
@@ -0,0 +1,44 @@
+heat_template_version: 2014-10-16
+
+description: >
+  Extra config to add swap space to 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
+  swap_partition_label:
+    type: string
+    description: Swap partition label
+    default: 'swap1'
+
+
+resources:
+
+  SwapConfig:
+    type: OS::Heat::SoftwareConfig
+    properties:
+      group: script
+      config: |
+        #!/bin/bash
+        set -eux
+        swap_partition=$(realpath /dev/disk/by-label/$swap_partition_label)
+        swapon $swap_partition
+        echo "$swap_partition swap swap defaults 0 0" >> /etc/fstab
+      inputs:
+        - name: swap_partition_label
+          description: Swap partition label
+          default: 'swap1'
+
+{% for role in roles %}
+  {{role.name}}SwapDeployment:
+    type: OS::Heat::SoftwareDeploymentGroup
+    properties:
+      config: {get_resource: SwapConfig}
+      servers: {get_param: servers, {{role.name}}}
+      input_values:
+        swap_partition_label: {get_param: swap_partition_label}
+      actions: ["CREATE"]
+{% endfor %}