Install

You can use krew to install the plugin.

$ kubectl krew install history

You also can download the binary from release page, and put it in your PATH. You may need to allow it to be executed from the settings->Security & Privacy dialog.

Usages

List and diff versions of deployment/daemonset/statefulset

Usage:
  kubectl-history [command]

Available Commands:
  diff        Show a diff for different revisions of the resource
  help        Help about any command
  list        List all the revisions of the resource

Flags:
  -c, --context string      the context scope for the request
  -h, --help                help for kubectl-history
  -f, --kubeconfig string   path to the kubeconfig file to be used for the requests
  -n, --namespace string    the namespace scope for the request
  -v, --v Level             number for the log level verbosity
      --version             version for kubectl-history

Use "kubectl-history [command] --help" for more information about a command.

list command

Use list command to list all the exit revisions: k history list -n sandbox deploy dong-web

 # | CREATE TIME                   | NAME                | DESIRED | AVAILIABE | READY
---+-------------------------------+---------------------+---------+-----------+-------
 2 | 2022-07-13 17:25:14 +0800 CST | dong-web-68dc7787b7 |       2 |         2 |     2
 1 | 2022-07-13 17:24:15 +0800 CST | dong-web-78b7f7cbb  |       0 |         0 |     0

Add -d to show more details: k history list -n sandbox deploy dong-web -d

 # | CREATE TIME                   | NAME                        | DESIRED | AVAILIABE | READY
---+-------------------------------+-----------------------------+---------+-----------+-------
 2 | 2022-07-13 17:25:14 +0800 CST | dong-web-68dc7787b7         |       2 |         2 |     2
   |                               | └─dong-web-68dc7787b7-6ggpd |         |           |
   |                               | └─dong-web-68dc7787b7-z9dbl |         |           |
 1 | 2022-07-13 17:24:15 +0800 CST | dong-web-78b7f7cbb          |       0 |         0 |     0

diff command

The command below will get the same result

• k history diff -n sandbox deploy dong-web show difference between the latest two versions
• k history diff -n sandbox deploy dong-web 1 show difference between version 1 and the latest version
• k history diff -n sandbox deploy dong-web 1 2 show different between version 1 and 2

--- OLD
+++ NEW
@@ -4,13 +4,13 @@
   annotations:
     deployment.kubernetes.io/desired-replicas: "2"
     deployment.kubernetes.io/max-replicas: "3"
-    deployment.kubernetes.io/revision: "1"
-  generation: 3
+    deployment.kubernetes.io/revision: "2"
+  generation: 2