shownodes

Enhanced kubectl get nodes.

Uses information from kubectl get nodes and kubectl get pods commands to provide higher-value, more correlated output for better operational and situational awareness.

• Describes the CPU architecture (e.g. 'amd64')
• Describes the resources available to each node (e.g. CPU, RAM)
• Knows the price of AWS instances and uses to provide cost info
• Dynamically looks up spot pricing for spot nodes, or estimates if not currently available.

Estimates the price of each node and of the cluster as a whole, using static on-demand pricing. Gives a reasonable sense of how spendy a cluster configuration could be.

Options

--sort-by=cpu,-mem Can sort columns ascending (default) or descending (use - prefix)

--name=id,name Shows name as instance id and standard nodename. Can also show raw ip address. dns is a synonym for name (aka standard "node name").

--az=name,id Shows Availability Zone by both name and id (useful for physical data center correlation).

--age=edt,age Shows node ages in US/Eastern timezone and age. Options are humanized age, k8s version of humanized age, standard US timezones (e.g. EDT, EST, PDT, ...), UTC/GMT/zulu standard time zone, Unix or Epoch (seconds since the Unix epoch), and iso (RFC 3339/ISO 8601 standard timestamp in UTC). Each of these is convenient for correlating with various other data sources.

--pods=app Shows where all the app pods live. By default shows abbreviated pod names. End the query with an = to see the full pod names. Query expression allows selecting pods and namespaces, e.g. --pods=:*= for all namespaces, or --pods=coredns:* for all coredns pods. The app namespace is a default, same as in Geodesic with set-clus.

--status=Ready Shows only Ready nodes.

--status=-NoSched Shows nodes omitting NoSchedule nodes.

--stranded Show special summary of "stranded" (waiting to terminate) nodes.

--summary Shows extended summary of pods in the cluster.

--export Exports CSV of currnet configuration

--top Add top information (CPU and MEM percent used)

--highlight=<phrase> Highlights given phrase in the table like a highlighter pen. Commas in <phrase> signal alternation, so --highlight=12xlarge,16xlarge applies the same highlight color to either 12xlarge or 16xlarge nodes. Multiple --highlight options may be given. Note this is simple string search in each table row; beware linguistic coincidence (e.g. 64 will match amd64 and 64 GiB RAM and nodes with 64 in their node names). By default highlights in yellow. If you wish a specific highlight color, you can name it like such: shownodes --highlight=orange:NG --highlight=yellow:16xlarge. The available colors are yellow, pink, green, blue, orange, and purple.

License

MIT. See LICENSE.