container-cloud-config

Module for helping to create cloud config for running containers

Example

Python code

from container_cloud_config import CloudConfigContext
from jinja2 import FileSystemLoader, Environment, StrictUndefined

jinja_env = Environment(loader=FileSystemLoader('templates'), undefined=StrictUndefined)

config_context = CloudConfigContext()
config_context.populate_jinja_environment(jinja_env)

Jinja template code

# To retrieve an etcd discovery token:
token={{ new_etcd_discovery_token() }}

# To create systemd units for downloading and running a Docker image:
{{ dockersystemd('myserver',
                 'quay.io/mynamespace/myservice',
                 'mynamespace+deploy',
                 'robottokenorpassword',
                 'latest',
                 extra_args='--privileged -p 443:443 -p 80:80',
                 after_units=[],
                 flattened=True
                ) }}

Flattened/Squashed Images

Flattened (Squashed) images are currently only supported for repositories hosted on Quay.io.

Precaching flattened images

If flattened=True is used on the dockersystemd call, images can be precached by invoking the prime_flattened_image_cache method after the template has been invoked.