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Pull images if they do not exist

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Ben Firshman 2013-12-18 11:37:51 +00:00
parent 785cb12833
commit 24a98b0552
1 changed files with 13 additions and 1 deletions
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14
plum/service.py
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@ -1,3 +1,4 @@
from docker.client import APIError
import logging import logging
import re import re
@ -34,8 +35,19 @@ class Service(object):
self.stop_container() self.stop_container()
def create_container(self, **override_options): def create_container(self, **override_options):
"""
Create a container for this service. If the image doesn't exist, attempt to pull
it.
"""
container_options = self._get_container_options(override_options) container_options = self._get_container_options(override_options)
return self.client.create_container(**container_options) try:
return self.client.create_container(**container_options)
except APIError, e:
if e.response.status_code == 404 and e.explanation and 'No such image' in e.explanation:
log.info('Pulling image %s...' % container_options['image'])
self.client.pull(container_options['image'])
return self.client.create_container(**container_options)
raise
def start_container(self, container=None, **override_options): def start_container(self, container=None, **override_options):
container_options = self._get_container_options(override_options) container_options = self._get_container_options(override_options)