Use 'command -v' instead of 'which' for required command check. Makes the plugin more distribution independent, as which is not always installed by default - depending on the Linux distribution.

This release adds a new check type to the plugin.

The "local-certs" check type allows to check for valid certificates deployed by Rancher in the "local" cluster, under the "System" project. These certificates are deployed as Kubernetes secrets in the "cattle-system" namespace.

These certificates are by default created with a one year validity (Rancher, whyyyy?!). When these local certificates expire, this can create some issues in the background of Rancher, e.g. when RBAC actions are used. It's therefore important to verify these certificates have not expired.

Enhancement:

• Allow ignore specific workloads (#40 ) with the -i parameter. Previously only states of nodes and workloads could be ignored.

Fixes:

• Do not treat a cluster in provisioning state as critical, do a warning instead (#39 and #41 )

Allow using ignore status in workload checks #29
Fixing problems with ComponentStatus health checks which were removed in Kubernetes 1.23: #35
Show Kubernetes version in single cluster check output

Improvements in plugin output: See #32
Show namespace of workload in output: See #33

Version 1.8.0 adds a lot of additional performance data to the plugin. The cluster and node performance data now show more information, including percentages of resources used (for example CPU used in percent).
The plugin now also supports long parameters (-H and --apihost).
Additional parameters were added to specifically trigger alerts when certain performance thresholds are reached on a node or cluster level: CPU Usage, Memory Usage or Pod Usage.
Kudos and credits to @steffeneichler for this large PR!

Fix cluster status check (#26)

Version 1.7.0 adds additional internal checks to the -t node check. Prior to 1.7.0, only the node status was checked. This could either be Active, Unavailable, Drained or Cordoned (if I remember correctly). Release 1.7.0 adds additional checks on pressure conditions, such as Disk Pressure.

Fix cluster and project not found error (#24)

This release adds performance data on a single cluster check and fixes the "project" check.
Inlcudes PR #20 and #22 .