[libvirt] [sandbox PATCH 07/11] Image: Add get_command function to Source

Provide a way to know how a template can be started depending on the used source DockerSource will need to parse the topmost config file in order to find the igniter command --- virt-sandbox-image/sources/DockerSource.py | 14 ++++++++++++++ virt-sandbox-image/sources/Source.py | 4 ++++ 2 files changed, 18 insertions(+) diff --git a/virt-sandbox-image/sources/DockerSource.py b/virt-sandbox-image/sources/DockerSource.py index 180d3f2..4326624 100644 --- a/virt-sandbox-image/sources/DockerSource.py +++ b/virt-sandbox-image/sources/DockerSource.py @@ -9,6 +9,15 @@ import os import subprocess import shutil +class DockerConfParser(): + + def __init__(self,jsonfile): + with open(jsonfile) as json_file: + self.json_data = json.load(json_file) + def getRunCommand(self): + cmd = self.json_data['container_config']['Cmd'][2] + return cmd[cmd.index('"') + 1:cmd.rindex('"')] + class DockerSource(Source): default_index_server = "index.docker.io" default_template_dir = "/var/lib/libvirt/templates" @@ -333,6 +342,11 @@ class DockerSource(Source): parent = None imagetagid = parent + def get_command(self,configfile): + configParser = DockerConfParser(configfile) + commandToRun = configParser.getRunCommand() + return commandToRun + def debug(msg): sys.stderr.write(msg) diff --git a/virt-sandbox-image/sources/Source.py b/virt-sandbox-image/sources/Source.py index 36c4343..c4087ca 100644 --- a/virt-sandbox-image/sources/Source.py +++ b/virt-sandbox-image/sources/Source.py @@ -19,3 +19,7 @@ class Source(): def delete_template(self,**args): pass + @abstractmethod + def get_command(self,**args): + pass + -- 2.1.0