def logs_command(args):
"""Gets (or streams) the logs for an application."""
args.app = args.app.lower()
k8s = Kubernetes(args.kubernetes_url, namespace='noelapp')
pods = k8s.pods(params={'labelSelector': 'noel-app={}'.format(args.app)})
if not pods['items']:
logger.error('No running pods found for app {}'.format(args.app))
return False
pod = pods['items'].pop()
logger.info('Using pod {}'.format(pod['metadata']['name']))
if args.follow:
logger.warning('Streaming logs. Press ctrl+c to quit.')
try:
it = k8s.logs(pod['metadata']['name'],
container='noel-app',
lines=args.lines,
follow=args.follow)
for log in it:
print(log)
except KeyboardInterrupt:
pass
def run(args):
k8s = Kubernetes(args.kubernetes_url, namespace='noel')
wait_for_kubernetes(k8s)
keys = get_host_keys(k8s)
if keys:
logger.info('Existing ssh host keys found.')
write_ssh_host_keys(args.destination, keys)
return
logger.warning('No existing ssh host keys. Generating keys.')
keys = generate_ssh_host_keys(args.destination)
try:
put_host_keys(k8s, keys)
logger.info('Host keys saved to Kubernetes.')
except KubernetesError as e:
if e.httperror.response.status_code == 409:
logger.error(
'Conflict while writing ssh keys to Kubernetes, retrying...')
return run(args)
else:
logger.exception('Unexpected error while writing ssh host keys.')
raise
def logs_command(args):
"""Gets (or streams) the logs for an application."""
args.app = args.app.lower()
k8s = Kubernetes(args.kubernetes_url, namespace='noelapp')
pods = k8s.pods(params={
'labelSelector': 'noel-app={}'.format(args.app)})
if not pods['items']:
logger.error('No running pods found for app {}'.format(args.app))
return False
pod = pods['items'].pop()
logger.info('Using pod {}'.format(pod['metadata']['name']))
if args.follow:
logger.warning('Streaming logs. Press ctrl+c to quit.')
try:
it = k8s.logs(
pod['metadata']['name'],
container='noel-app',
lines=args.lines,
follow=args.follow)
for log in it:
print(log)
except KeyboardInterrupt:
pass
def get_config_command(args):
"""Gets the current configuration values for an application."""
args.app = args.app.lower()
k8s = Kubernetes(args.kubernetes_url, namespace='noelapp')
config = deployer.get_config(k8s, args.app)
if not config:
logger.error('No config for app {}'.format(args.app))
return False
for k, v in config['data'].iteritems():
print('{}: {}'.format(k, v))
def get_config_command(args):
"""Gets the current configuration values for an application."""
args.app = args.app.lower()
k8s = Kubernetes(args.kubernetes_url, namespace='noelapp')
config = deployer.get_config(k8s, args.app)
if not config:
logger.error('No config for app {}'.format(args.app))
return False
for k, v in config['data'].iteritems():
print('{}: {}'.format(k, v))
def scale_command(args):
"""Scales the number of replicas for an application."""
args.app = args.app.lower()
k8s = Kubernetes(args.kubernetes_url, namespace='noelapp')
rc = deployer.get_replication_controller(k8s, args.app)
if not rc:
logger.error('No replication controller found for app {}.'.format(
args.app))
return False
k8s.scale(rc['metadata']['name'], replicas=args.replicas)
logger.info('Scaled app {} to {} replicas.'.format(args.app,
args.replicas))
def scale_command(args):
"""Scales the number of replicas for an application."""
args.app = args.app.lower()
k8s = Kubernetes(args.kubernetes_url, namespace='noelapp')
rc = deployer.get_replication_controller(k8s, args.app)
if not rc:
logger.error(
'No replication controller found for app {}.'.format(args.app))
return False
k8s.scale(rc['metadata']['name'], replicas=args.replicas)
logger.info(
'Scaled app {} to {} replicas.'.format(args.app, args.replicas))
def post_receive_hook_command():
repo_name = os.path.basename(os.getcwd())
_, sha, ref = read_push_info_from_stdin()
if ref != 'refs/heads/master':
logger.error('Received ref {}, not deploying. \n'
'Please push master to deploy.'.format(ref))
return False
logger.info('Got request to build project {}.'.format(repo_name))
staging_dir = os.path.join(STAGING_ROOT, repo_name)
logger.info('Staging code at {}'.format(staging_dir))
checkout_repo(staging_dir)
args = argparse.Namespace(
dir=staging_dir,
app=repo_name,
version=sha[:6],
kubernetes_url='http://localhost:8001')
return build_and_deploy_command(args)