Add rax_meta module

Also update rax to mirror meta value normalization from rax_meta

cloud/rax

@@ -386,15 +386,21 @@ def cloudservers(module, state, name, flavor, image, meta, key_name, files,
 
     servers = []
 
-    for key, value in meta.items():
-        meta[key] = repr(value)
-
     # Add the group meta key
     if group and 'group' not in meta:
         meta['group'] = group
     elif 'group' in meta and group is None:
         group = meta['group']
 
+    # Normalize and ensure all metadata values are strings
+    for k, v in meta.items():
+        if isinstance(v, list):
+            meta[k] = ','.join(['%s' % i for i in v])
+        elif isinstance(v, dict):
+            meta[k] = json.dumps(v)
+        elif not isinstance(v, basestring):
+            meta[k] = '%s' % v
+
     # When using state=absent with group, the absent block won't match the
     # names properly. Use the exact_count functionality to decrease the count
     # to the desired level

cloud/rax_meta

@@ -0,0 +1,178 @@
+#!/usr/bin/python
+# This file is part of Ansible
+#
+# Ansible is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Ansible is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
+
+# This is a DOCUMENTATION stub specific to this module, it extends
+# a documentation fragment located in ansible.utils.module_docs_fragments
+DOCUMENTATION = '''
+---
+module: rax_meta
+short_description: Manipulate metadata for Rackspace Cloud Servers
+description:
+     - Manipulate metadata for Rackspace Cloud Servers
+version_added: 1.7
+options:
+  address:
+    description:
+      - Server IP address to modify metadata for, will match any IP assigned to
+        the server
+  id:
+    description:
+      - Server ID to modify metadata for
+  name:
+    description:
+      - Server name to modify metadata for
+    default: null
+  meta:
+    description:
+      - A hash of metadata to associate with the instance
+    default: null
+author: Matt Martz
+extends_documentation_fragment: rackspace.openstack
+'''
+
+EXAMPLES = '''
+- name: Set metadata for a server
+  hosts: all
+  gather_facts: False
+  tasks:
+    - name: Set metadata
+      local_action:
+        module: rax_meta
+        credentials: ~/.raxpub
+        name: "{{ inventory_hostname }}"
+        region: DFW
+        meta:
+          group: primary_group
+          groups:
+            - group_two
+            - group_three
+          app: my_app
+
+    - name: Clear metadata
+      local_action:
+        module: rax_meta
+        credentials: ~/.raxpub
+        name: "{{ inventory_hostname }}"
+        region: DFW
+'''
+
+try:
+    import pyrax
+    HAS_PYRAX = True
+except ImportError:
+    HAS_PYRAX = False
+
+
+def rax_meta(module, address, name, server_id, meta):
+    changed = False
+
+    cs = pyrax.cloudservers
+
+    if cs is None:
+        module.fail_json(msg='Failed to instantiate client. This '
+                             'typically indicates an invalid region or an '
+                             'incorrectly capitalized region name.')
+
+    search_opts = {}
+    if name:
+        search_opts = dict(name='^%s$' % name)
+        try:
+            servers = cs.servers.list(search_opts=search_opts)
+        except Exception, e:
+            module.fail_json(msg='%s' % e.message)
+    elif address:
+        servers = []
+        try:
+            for server in cs.servers.list():
+                for addresses in server.networks.values():
+                    if address in addresses:
+                        servers.append(server)
+                        break
+        except Exception, e:
+            module.fail_json(msg='%s' % e.message)
+    elif server_id:
+        servers = []
+        try:
+            servers.append(cs.servers.get(server_id))
+        except Exception, e:
+            pass
+
+    if len(servers) > 1:
+        module.fail_json(msg='Multiple servers found matching provided '
+                             'search parameters')
+    elif not servers:
+        module.fail_json(msg='Failed to find a server matching provided '
+                             'search parameters')
+
+    # Normalize and ensure all metadata values are strings
+    for k, v in meta.items():
+        if isinstance(v, list):
+            meta[k] = ','.join(['%s' % i for i in v])
+        elif isinstance(v, dict):
+            meta[k] = json.dumps(v)
+        elif not isinstance(v, basestring):
+            meta[k] = '%s' % v
+
+    server = servers[0]
+    if server.metadata == meta:
+        changed = False
+    else:
+        changed = True
+        removed = set(server.metadata.keys()).difference(meta.keys())
+        cs.servers.delete_meta(server, list(removed))
+        cs.servers.set_meta(server, meta)
+        server.get()
+
+    module.exit_json(changed=changed, meta=server.metadata)
+
+
+def main():
+    argument_spec = rax_argument_spec()
+    argument_spec.update(
+        dict(
+            address=dict(),
+            id=dict(),
+            name=dict(),
+            meta=dict(type='dict', default=dict()),
+        )
+    )
+
+    module = AnsibleModule(
+        argument_spec=argument_spec,
+        required_together=rax_required_together(),
+        mutually_exclusive=[['address', 'id', 'name']],
+        required_one_of=[['address', 'id', 'name']],
+    )
+
+    if not HAS_PYRAX:
+        module.fail_json(msg='pyrax is required for this module')
+
+    address = module.params.get('address')
+    server_id = module.params.get('id')
+    name = module.params.get('name')
+    meta = module.params.get('meta')
+
+    setup_rax_module(module, pyrax)
+
+    rax_meta(module, address, name, server_id, meta)
+
+
+# import module snippets
+from ansible.module_utils.basic import *
+from ansible.module_utils.rax import *
+
+### invoke the module
+main()