kumactl

The kumactl executable is a very important component in your journey with Kuma. It allows to:

  • Retrieve the state of Kuma and the configured policies in every environment.
  • On Universal environments, it allows to change the state of Kuma by applying new policies with the kumactl apply [..] command.
  • On Kubernetes it is read-only, because you are supposed to change the state of Kuma by leveraging Kuma’s CRDs.
  • It provides helpers to install Kuma on Kubernetes, and to configure the PostgreSQL schema on Universal (kumactl install [..]).

The kumactl application is a CLI client for the underlying HTTP API of Kuma. Therefore, you can access the state of Kuma by leveraging with the API directly. On Universal you will be able to also make changes via the HTTP API, while on Kubernetes the HTTP API is read-only.

Available commands on kumactl are:

  • kumactl install [..]: provides helpers to install Kuma components in Kubernetes.
    • kumactl install control-plane: Installs Kuma in Kubernetes in a kuma-system namespace.
    • kumactl install metrics: Installs Prometheus + Grafana in Kubernetes in a kuma-metrics namespace.
    • kumactl install tracing: Installs Jaeger with Zipkin compatibility in Kubernetes in a kuma-tracing namespace.
  • kumactl config [..]: configures the local or remote control-planes that kumactl should talk to. You can have more than one enabled, and the configuration will be stored in ~/.kumactl/config.
  • kumactl apply [..]: used to change the state of Kuma. Only available on Universal.
  • kumactl get [..]: used to retrieve the raw state of entities Kuma.
  • kumactl inspect [..]: used to retrieve an augmented state of entities in Kuma.
  • kumactl generate dataplane-token: used to generate Dataplane Token.
  • kumactl generate tls-certificate: used to generate a TLS certificate for client or server.
  • kumactl manage ca [..]: used to manage certificate authorities.
  • kumactl help [..]: help dialog that explains the commands available.
  • kumactl version [--detailed]: shows the version of the program.