Kubernetes Core

Learn about configurations >

• config_version | string

  Default: v2

  Containerd config version. Can be "v1" or "v2". DEPRECATED: config_version will be removed in a future release.

• custom-registry-ca | string

  Base64 encoded Certificate Authority (CA) bundle. Setting this config allows container runtimes to pull images from registries with TLS certificates signed by an external CA.

• custom_registries | string

  Default: []

  Registry endpoints and 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: e.g.: [{"host": "my.registry:port", "username": "user", "password": "pass"}] Credential Object Parameters: `url: REQUIRED str` the URL to the registry, include the port if not it isn't implied from the schema. e.g: "url": "https://my.registry:8443" e.g: "url": "http://my.registry" host: OPTIONAL str - defaults to auto-generated from the url could be registry host address or a name e.g.: myregistry.io:9000, 10.10.10.10:5432 e.g.: myregistry.io, myregistry Note: It will be derived from `url` if not provided. e.g.: "url": "http://10.10.10.10:8000" --> "host": "10.10.10.10:8000" username: OPTIONAL str - default '' password: OPTIONAL str|dict - default '' Used by containerd for basic authentication to the registry. If a string, will be rendered wrapped as a double-quoted str (password = "my-strong-password") If a dictionary, will be rendered as a single-quoted json (password = '{"my": "json"}') e.g.: "password": '"$(jq -c . gce.json)"' ca_file: OPTIONAL str - default '' cert_file: OPTIONAL str - default '' key_file: OPTIONAL str - default '' For ssl/tls communication these should be a base64 encoded file e.g.: "ca_file": "'"$(base64 -w 0 < my.custom.registry.pem)"'" insecure_skip_verify: OPTIONAL bool - default false For situatations where the registry has self-signed or expired certs and a quick work-around is necessary. e.g.: "insecure_skip_verify": true example config) juju config containerd custom_registries='[{ "url": "https://registry.example.com", "ca_file": "'"$(base64 -w 0 < ~/my.custom.ca.pem)"'", "cert_file": "'"$(base64 -w 0 < ~/my.custom.cert.pem)"'", "key_file": "'"$(base64 -w 0 < ~/my.custom.key.pem)"'", }]'

• 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

  Default: auto

  Override GPU driver installation. Options are "auto", "nvidia", "none". Caution: setting this to nvidia will cause nvidia drivers to be installed on kubernetes-control-plane, even if a GPU is not present.

• 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.

• kill_signal | string

  Default: SIGTERM

  Set containerd systemd KillSignal. Options are standard signals from https://man7.org/linux/man-pages/man7/signal.7.html

• 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.

• nvidia_apt_key_urls | string

  Default: https://nvidia.github.io/nvidia-container-runtime/gpgkey https://developer.download.nvidia.com/compute/cuda/repos/{id}{version_id_no_dot}/x86_64/3bf863cc.pub

  Space-separated list of APT GPG key URLs to add when using Nvidia GPUs. Supported template options: {id}: OS release ID, e.g. "ubuntu" {version_id}: OS release version ID, e.g. "20.04" {version_id_no_dot}: OS release version ID with no dot, e.g. "2004"

• nvidia_apt_packages | string

  Default: cuda-drivers nvidia-container-runtime

  Space-separated list of APT packages to install when using Nvidia GPUs.

• nvidia_apt_sources | string

  Default: deb https://nvidia.github.io/libnvidia-container/stable/deb/$(ARCH) / deb https://nvidia.github.io/nvidia-container-runtime/{id}{version_id}/$(ARCH) / deb https://developer.download.nvidia.com/compute/cuda/repos/{id}{version_id_no_dot}/x86_64 /

  Newline-separated list of APT sources to add when using Nvidia GPUs. Supported template options: {id}: OS release ID, e.g. "ubuntu" {version_id}: OS release version ID, e.g. "20.04" {version_id_no_dot}: OS release version ID with no dot, e.g. "2004"

• runtime | string

  Default: auto

  Set a custom containerd runtime. Set "auto" to select based on hardware.

• shim | string

  Default: containerd-shim

  Set a custom containerd shim.