Permit cloud-init to be configured for its metadata sources using debconf.

manifests/ec2-ebs-debian-official-amd64-hvm.manifest.json

@@ -44,7 +44,8 @@
 			]
 		},
 		"cloud_init": {
-			"username": "admin"
+			"username": "admin",
+			"metadata_sources": "Ec2"
 		}
 	}
 }

manifests/ec2-ebs-debian-official-amd64-pvm.manifest.json

@@ -44,7 +44,8 @@
 			]
 		},
 		"cloud_init": {
-			"username": "admin"
+			"username": "admin",
+			"metadata_sources": "Ec2"
 		}
 	}
 }

manifests/ec2-ebs-debian-official-i386-pvm.manifest.json

@@ -44,7 +44,8 @@
 			]
 		},
 		"cloud_init": {
-			"username": "admin"
+			"username": "admin",
+                        "metadata_sources": "Ec2"
 		}
 	}
 }

plugins/cloud_init/__init__.py

@@ -22,9 +22,10 @@ def validate_manifest(data, schema_validate):
 
 def resolve_tasks(tasklist, manifest):
 	from tasks import SetUsername
+	from tasks import SetMetadataSource
 	from providers.ec2.tasks.initd import AddEC2InitScripts
 	from common.tasks import initd
-	tasklist.add(SetUsername)
+	tasklist.add(SetUsername, SetMetadataSource)
 	tasklist.remove(AddEC2InitScripts,
 	                initd.AddExpandRoot,
 	                initd.AdjustExpandRootScript,

plugins/cloud_init/manifest-schema.json

@@ -11,6 +11,9 @@
 					"properties": {
 						"username": {
 							"type": "string"
+						},
+						"metadata_sources": {
+							"type": "string"
 						}
 					},
 					"required": ["username"]

plugins/cloud_init/tasks.py

@@ -1,6 +1,8 @@
 from base import Task
 from common import phases
 from plugins.packages.tasks import InstallRemotePackages
+from common.tasks import apt
+from common.tools import log_check_call
 
 
 class SetUsername(Task):
@@ -18,3 +20,14 @@ class SetUsername(Task):
 		           '     sudo: ALL=(ALL) NOPASSWD:ALL\n'
 		           '     shell: /bin/bash').format(username=username)
 		sed_i(cloud_cfg, search, replace)
+
+class SetMetadataSource(Task):
+        description = 'Setting metadata source'
+        phase = phases.system_modification
+	predecessors = [apt.AptSources]
+        successors = [apt.AptUpdate]
+
+        def run(self, info):
+		sources = "cloud-init      cloud-init/datasources  multiselect     " + info.manifest.plugins['cloud_init']['metadata_sources']
+		log_check_call(['/usr/sbin/chroot', info.root, '/usr/bin/debconf-set-selections' ], sources)
+