The image name is now the repo + tag. Also:Improve labeling

bootstrapvz/providers/docker/README.rst

@@ -14,15 +14,17 @@ With optimal settings a 64-bit jessie image can be whittled down to 81.95 MB
 Manifest settings
 -----------------
 
+Name
+~~~~
+
+-  ``name``: The image name is the repository and tag to where an
+   image should be imported.
+   ``required``
+
+
 Provider
 ~~~~~~~~
 
--  ``repository``: Repository to which the image should be imported.
-   ``required``
-
--  ``tag``: Name with which the image should be tagged.
-   ``required``
-
 -  ``dockerfile``: Inline dockerfile that should be appended to
    the one created by the bootstrapper.
    ``optional``
@@ -43,11 +45,11 @@ Example:
 .. code:: yaml
 
     ---
+    name: bootstrap-vz:latest
     provider:
       name: docker
-      repository: bootstrap-vz
-      tag: latest
       dockerfile: >
         CMD /bin/bash
       labels:
+        name: debian-{system.release}-{system.architecture}-{%y}{%m}{%d}
         description: Debian {system.release} {system.architecture}

bootstrapvz/providers/docker/__init__.py

@@ -25,10 +25,13 @@ def resolve_tasks(taskset, manifest):
 	taskset.update(task_groups.cleanup_group)
 
 	taskset.update([tasks.commands.AddRequiredCommands,
-	                tasks.image.PopulateDockerfileLabels,
-	                tasks.image.CreateDockerfile,
+	                tasks.image.CreateDockerfileEntry,
 	                tasks.image.CreateImage,
 	                ])
+	if 'labels' in manifest.provider:
+		taskset.add(tasks.image.PopulateLabels)
+	if 'dockerfile' in manifest.provider:
+		taskset.add(tasks.image.AppendManifestDockerfile)
 
 
 def resolve_rollback_tasks(taskset, manifest, completed, counter_task):

bootstrapvz/providers/docker/manifest-schema.yml

@@ -6,10 +6,6 @@ properties:
   provider:
     type: object
     properties:
-      repository:
-        type: string
-      tag:
-        type: string
       labels:
         type: object
         properties:
@@ -25,7 +21,6 @@ properties:
             ^.+$: {type: string}
       dockerfile:
         type: string
-    required: [repository, tag]
   system:
     type: object
     properties:

bootstrapvz/providers/docker/tasks/image.py

@@ -3,10 +3,35 @@ from bootstrapvz.common import phases
 from bootstrapvz.common.tools import log_check_call
 
 
-class PopulateDockerfileLabels(Task):
-	description = 'Populating dockerfile labels'
+class CreateDockerfileEntry(Task):
+	description = 'Creating the Dockerfile entry'
+	phase = phases.preparation
+
+	@classmethod
+	def run(cls, info):
+		info._docker['dockerfile'] = ''
+
+
+class CreateImage(Task):
+	description = 'Creating docker image'
 	phase = phases.image_registration
 
+	@classmethod
+	def run(cls, info):
+		from pipes import quote
+		tar_cmd = ['tar', '--create', '--numeric-owner',
+		           '--directory', info.volume.path, '.']
+		docker_cmd = ['docker', 'import', '--change', info._docker['dockerfile'], '-',
+		              info.manifest.name]
+		cmd = ' '.join(map(quote, tar_cmd)) + ' | ' + ' '.join(map(quote, docker_cmd))
+		[info._docker['container_id']] = log_check_call([cmd], shell=True)
+
+
+class PopulateLabels(Task):
+	description = 'Populating docker labels'
+	phase = phases.image_registration
+	successors = [CreateImage]
+
 	@classmethod
 	def run(cls, info):
 		import pyrfc3339
@@ -22,16 +47,7 @@ class PopulateDockerfileLabels(Task):
 		if 'labels' in info.manifest.provider:
 			for label, value in info.manifest.provider['labels'].items():
 				labels[label] = value.format(**info.manifest_vars)
-		info._docker['dockerfile_labels'] = labels
 
-
-class CreateDockerfile(Task):
-	description = 'Creating dockerfile'
-	phase = phases.image_registration
-	predecessors = [PopulateDockerfileLabels]
-
-	@classmethod
-	def run(cls, info):
 		# pipes.quote converts newlines into \n rather than just prefixing
 		# it with a backslash, so we need to escape manually
 		def escape(value):
@@ -39,26 +55,17 @@ class CreateDockerfile(Task):
 			value = value.replace('\n', '\\\n')
 			value = '"' + value + '"'
 			return value
-		labels = []
-		for label, value in info._docker['dockerfile_labels'].items():
-			labels.append(label + '=' + escape(value))
+		kv_pairs = [label + '=' + escape(value) for label, value in labels.items()]
 		# Add some nice newlines and indentation
-		info._docker['dockerfile'] = 'LABEL ' + ' \\\n      '.join(labels) + '\n'
-		if 'dockerfile' in info.manifest.provider:
-			info._docker['dockerfile'] += info.manifest.provider['dockerfile'] + '\n'
+		info._docker['dockerfile'] += 'LABEL ' + ' \\\n      '.join(kv_pairs) + '\n'
 
 
-class CreateImage(Task):
-	description = 'Creating docker image'
+class AppendManifestDockerfile(Task):
+	description = 'Appending Dockerfile instructions from the manifest'
 	phase = phases.image_registration
-	predecessors = [CreateDockerfile]
+	predecessors = [PopulateLabels]
+	successors = [CreateImage]
 
 	@classmethod
 	def run(cls, info):
-		from pipes import quote
-		tar_cmd = ['tar', '--create', '--numeric-owner',
-		           '--directory', info.volume.path, '.']
-		docker_cmd = ['docker', 'import', '--change', info._docker['dockerfile'], '-',
-		              info.manifest.provider['repository'] + ':' + info.manifest.provider['tag']]
-		cmd = ' '.join(map(quote, tar_cmd)) + ' | ' + ' '.join(map(quote, docker_cmd))
-		[info._docker['container_id']] = log_check_call(cmd, shell=True)
+		info._docker['dockerfile'] += info.manifest.provider['dockerfile'] + '\n'

manifests/examples/docker/minimized-jessie.yml

@@ -2,8 +2,6 @@
 name: debian-{system.release}-{system.architecture}-{%y}{%m}{%d}
 provider:
   name: docker
-  repository: bootstrap-vz
-  tag: latest
   labels:
     description: Debian {system.release} {system.architecture}
   dockerfile: >