containerd #0

Supports: bionic xenial
Add to new model

Description

containerd manages the complete container lifecycle of its host system, from image transfer and storage to container execution and supervision to low-level storage to network attachments and beyond.


Charm for Containerd

This subordinate charm deploys the Containerd engine within a running Juju model. Containerd is an open platform for developers and sysadmins to build, ship, and run distributed applications in containers.

Containerd focuses on distributing applications as containers that can be quickly assembled from components that are run the same on different servers without environmental dependencies. This eliminates the friction between development, QA, and production environments.

States

The following states are set by this subordinate:

  • endpoint.{relation name}.available

This state is set when containerd is available for use.

Using the Containerd subordinate charm

The Containerd subordinate charm is to be used with principal charms that need a container runtime. To use, we deploy the Containerd subordinate charm and then relate it to the principal charm.

juju deploy cs:~containers/containerd
juju add-relation containerd [principal charm]

Scale out Usage

This charm will automatically scale out with the principal charm.

Configuration

See config.yaml for list of configuration options.

Note: Setting HTTP proxy values will override juju-http-proxy or juju-https-proxy on the model

Contact Information

This charm is available at https://jujucharms.com/containerd and contains the open source operations code to deploy on all public clouds in the Juju ecosystem.

Containerd links


Configuration

custom_registries
(string) Registry credentials. Setting this config allows Kubelet to pull images from registries where auth is required. The value for this config must be a JSON array of credential objects, like this: [{"url": "https://my.registry:port", "username": "user", "password": "pass"}]
[]
disable-juju-proxy
(boolean) Ignore juju-http(s) proxy settings on this charm. If set to true, all juju https proxy settings will be ignored
enable-cgroups
(boolean) Enable GRUB cgroup overrides cgroup_enable=memory swapaccount=1. WARNING changing this option will reboot the host - use with caution on production services.
gpu_driver
(string) Override GPU driver installation. Options are "auto", "nvidia", "none".
auto
http_proxy
(string) URL to use for HTTP_PROXY to be used by Containerd. Useful in egress-filtered environments where a proxy is the only option for accessing the registry to pull images.
https_proxy
(string) URL to use for HTTPS_PROXY to be used by Containerd. Useful in egress-filtered environments where a proxy is the only option for accessing the registry to pull images.
no_proxy
(string) Comma-separated list of destinations (either domain names or IP addresses) which should be accessed directly, rather than through the proxy defined in http_proxy or https_proxy. Must be less than 2023 characters long.
runtime
(string) Set a custom containerd runtime. Set "auto" to select based on hardware.
auto
shim
(string) Set a custom containerd shim.
containerd-shim