def world_of_docker():
"""Pulls and starts a container from a random Docker image in the top 100."""
with open('repos.json') as data_file:
repos = json.load(data_file)
client = Client(**kwargs_from_env())
random_repo = random.choice(repos)['name']
click.echo('Hmmmmmm.... how about %s? Everybody likes %s!' %
(random_repo, random_repo))
for line in client.pull(random_repo, stream=True):
click.echo(json.loads(line)['status'])
click.echo('Now let\'s just start up a container here...')
container = client.create_container(image=random_repo)
client.start(container=container.get('Id'))
container_name = client.inspect_container(
container['Id'])['Name'].strip('/')
click.echo('Up and running! Enjoy your new %s container, %s' %
(random_repo, container_name))
class DockerPyClient(DockerClient):
def __init__(self, remote, username=None, password=None, email=None):
super(DockerPyClient,self).__init__()
self.client = Client(base_url=remote, version='1.15')
self.log = logging.getLogger(__name__)
self.log.debug('password %s, remote = %s, username=%s', password, remote, username)
if username:
self.client.login(username=username, password=password, email=email)
def docker_images(self, filters=None):
return self.client.images(filters=filters)
def __id(self, ioc):
if ioc and 'Id' in ioc:
return ioc['Id']
return None
def docker_containers(self):
return [{
'Id': cont['Id'],
'Tag': cont['Image'],
'Image': self.__id(self.image(cont['Image'])),
'Names': cont['Names'],
'Ports': cont['Ports'],
'Created': cont['Created'],
'Command': cont['Command'],
'Status': cont['Status'],
'Running': cont['Status'].startswith('Up ') or cont['Status'].startswith('Restarting ')
} for cont in self.client.containers(all=True)]
def docker_pull(self, image):
(repository, tag) = self.tag(image)
existing = self.image(image)
for line in self.client.pull(repository=repository, stream=True, insecure_registry=True):
parsed = json.loads(line)
self.log.debug('parsed %s' % parsed)
if 'error' in parsed:
raise Exception(parsed['error'])
# Check if image updated
self.flush_images()
newer = self.image(image)
if not existing or (newer['Id'] != existing['Id']):
return True
return False
def docker_run(self, entry):
volumes = ['/var/log/ext']
kwargs = {
'image': entry['image'],
'volumes': volumes,
'detach': True,
'environment': {
'DOCKER_IMAGE': entry['image']
}
}
if 'name' in entry:
kwargs['name'] = entry['name']
if 'env' in entry:
kwargs['environment'].update(entry['env'])
if 'cpu' in entry:
kwargs['cpu_shares'] = entry['cpu']
if 'memory' in entry:
kwargs['mem_limit'] = entry['memory']
if 'entrypoint' in entry:
kwargs['entrypoint'] = entry['entrypoint']
if 'command' in entry:
kwargs['command'] = entry['command']
if 'volumes' in entry:
volumes.extend([vol['containerPath'] for vol in entry['volumes'] if 'containerPath' in vol])
volsFrom = [vol['from'] for vol in entry['volumes'] if 'from' in vol]
if len(volsFrom):
kwargs['volumes_from'] = volsFrom
if 'portMappings' in entry:
kwargs['ports'] = [p['containerPort'] for p in entry['portMappings']]
container = self.client.create_container(**kwargs)
self.docker_start(container['Id'], entry)
return container['Id']
def docker_start(self, container, entry=None):
logsBound = False
binds = {}
restart_policy = 'on-failure'
kwargs = {
'container': container,
'binds': binds
}
if entry is not None:
if 'network' in entry:
kwargs['network_mode'] = entry['network']
if 'privileged' in entry:
kwargs['privileged'] = entry['privileged']
if 'volumes' in entry:
volsFrom = []
for vol in entry['volumes']:
if 'from' in vol:
volsFrom.append(vol['from'])
continue
if not 'containerPath' in vol:
self.log.warn('No container mount point specified, skipping volume')
continue
if not 'hostPath' in vol:
# Just a local volume, no bindings
continue
binds[vol['hostPath']] = {
'bind': vol['containerPath'],
'ro': 'mode' in vol and vol['mode'].lower() == 'ro'
}
if vol['containerPath'] == '/var/log/ext':
logsBound = True
if len(volsFrom):
kwargs['volumes_from'] = volsFrom
if 'portMappings' in entry:
portBinds = {}
for pm in entry['portMappings']:
portBinds[pm['containerPort']] = pm['hostPort'] if 'hostPort' in pm else None
kwargs['port_bindings'] = portBinds
if 'links' in entry:
kwargs['links'] = entry['links']
if 'restart' in entry:
restart_policy = entry['restart']
kwargs['restart_policy'] = { 'MaximumRetryCount': 0, 'Name': restart_policy }
if not logsBound:
binds['/var/log/ext/%s' % container] = { 'bind': '/var/log/ext', 'ro': False }
self.client.start(**kwargs);
def docker_signal(self, container, sig='HUP'):
self.client.kill(container, sig)
def docker_restart(self, container):
self.client.restart(container)
def docker_stop(self, container):
self.client.stop(container)
def docker_rm(self, container):
self.client.remove_container(container)
def docker_rmi(self, image):
# Force removal, sometimes conflicts result from truncated pulls when
# dockerup container upgrades/dies
self.client.remove_image(image, force=True)
class DockerPyClient(DockerClient):
def __init__(self, remote, username=None, password=None, email=None):
super(DockerPyClient,self).__init__()
self.client = Client(base_url=remote, version='1.15')
if username:
self.client.login(username=username, password=password, email=email)
def docker_images(self, filters=None):
return self.client.images(filters=filters)
def __id(self, ioc):
if ioc and 'Id' in ioc:
return ioc['Id']
return None
def docker_containers(self):
return [{
'Id': cont['Id'],
'Tag': cont['Image'],
'Image': self.__id(self.image(cont['Image'])),
'Names': cont['Names'],
'Ports': cont['Ports'],
'Created': cont['Created'],
'Command': cont['Command'],
'Status': cont['Status'],
'Running': cont['Status'].startswith('Up ') or cont['Status'].startswith('Restarting ')
} for cont in self.client.containers(all=True)]
def docker_pull(self, image):
(repository, tag) = self.tag(image)
existing = self.image(image)
for line in self.client.pull(repository=repository, stream=True, insecure_registry=True):
parsed = json.loads(line)
if 'error' in parsed:
raise Exception(parsed['error'])
# Check if image updated
self.flush_images()
newer = self.image(image)
if not existing or (newer['Id'] != existing['Id']):
return True
return False
def docker_run(self, entry):
volumes = ['/var/log/ext']
kwargs = {
'image': entry['image'],
'volumes': volumes,
'detach': True,
'environment': {
'DOCKER_IMAGE': entry['image']
}
}
if 'name' in entry:
kwargs['name'] = entry['name']
if 'env' in entry:
kwargs['environment'].update(entry['env'])
if 'cpu' in entry:
kwargs['cpu_shares'] = entry['cpu']
if 'memory' in entry:
kwargs['mem_limit'] = entry['memory']
if 'entrypoint' in entry:
kwargs['entrypoint'] = entry['entrypoint']
if 'command' in entry:
kwargs['command'] = entry['command']
if 'volumes' in entry:
volumes.extend([vol['containerPath'] for vol in entry['volumes'] if 'containerPath' in vol])
volsFrom = [vol['from'] for vol in entry['volumes'] if 'from' in vol]
if len(volsFrom):
kwargs['volumes_from'] = volsFrom
if 'portMappings' in entry:
kwargs['ports'] = [p['containerPort'] for p in entry['portMappings']]
container = self.client.create_container(**kwargs)
self.docker_start(container['Id'], entry)
return container['Id']
def docker_start(self, container, entry=None):
logsBound = False
binds = {}
restart_policy = 'on-failure'
kwargs = {
'container': container,
'binds': binds
}
if entry is not None:
if 'network' in entry:
kwargs['network_mode'] = entry['network']
if 'privileged' in entry:
kwargs['privileged'] = entry['privileged']
if 'volumes' in entry:
volsFrom = []
for vol in entry['volumes']:
if 'from' in vol:
volsFrom.append(vol['from'])
continue
if not 'containerPath' in vol:
self.log.warn('No container mount point specified, skipping volume')
continue
if not 'hostPath' in vol:
# Just a local volume, no bindings
continue
binds[vol['hostPath']] = {
'bind': vol['containerPath'],
'ro': 'mode' in vol and vol['mode'].lower() == 'ro'
}
if vol['containerPath'] == '/var/log/ext':
logsBound = True
if len(volsFrom):
kwargs['volumes_from'] = volsFrom
if 'portMappings' in entry:
portBinds = {}
for pm in entry['portMappings']:
portBinds[pm['containerPort']] = pm['hostPort'] if 'hostPort' in pm else None
kwargs['port_bindings'] = portBinds
if 'links' in entry:
kwargs['links'] = entry['links']
if 'restart' in entry:
restart_policy = entry['restart']
kwargs['restart_policy'] = { 'MaximumRetryCount': 0, 'Name': restart_policy }
if not logsBound:
binds['/var/log/ext/%s' % container] = { 'bind': '/var/log/ext', 'ro': False }
self.client.start(**kwargs);
def docker_signal(self, container, sig='HUP'):
self.client.kill(container, sig)
def docker_restart(self, container):
self.client.restart(container)
def docker_stop(self, container):
self.client.stop(container)
def docker_rm(self, container):
self.client.remove_container(container)
def docker_rmi(self, image):
# Force removal, sometimes conflicts result from truncated pulls when
# dockerup container upgrades/dies
self.client.remove_image(image, force=True)