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kubetool

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kubetool is the tool that supports utility tasks which kubectl doesn't have.

Install

You have to install kubectl on your machine since kubetool uses kubectl command to execute tasks.

go get github.com/abema/kubetool

Features

kubetool help to see all commands.

List replication controllers

kubetool rc

Output example

  NAME    REPLICAS  IMAGE       VERSION
  nginx   2/2       abema/nginx 1.9.1
  mysql   2/2       abema/mysql latest

List pods

kubetool pods

Output example

     NAME      STATUS   R   POD IP     NODE IP    IMAGE       VERSION
  nginx-6k8hq  Running  0  10.8.0.4   10.78.0.2   abema/nginx 1.9.1
  nginx-s3vj6  Running  0  10.8.1.3   10.78.0.5   abema/nginx 1.9.1
  mysql-zm3iu  Running  0  10.8.2.7   10.78.0.9   abema/mysql latest
  mysql-gdmvb  Running  0  10.8.1.4   10.78.0.5   abema/mysql latest

Reload pods

Reload all pods in RC. This is done by destroying all pods one by one.

kubetool reload nginx

Just reload 1 pod. This is useful when testing new image before reloading all pods.

kubetool reload nginx --1

Update image version of RC

Patch image version of RC container definition. ex) image: nginx:1.9.1 -> image: nginx:1.9.2

kubetool update nginx 1.9.2

with reload

kubetool update nginx 1.9.2 --reload

with reload only 1 pod

kubetool update nginx 1.9.2 --reload --1

You can also select/input version in console,

kubetool update

Fix version

Fix container images which has different from RC they depends. This commands is similar to reload, but only destroy old pods.

kubetool fix-version nginx