├── README.md
└── kubectl-select.go


/README.md:
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 1 | ## kubectl-select
 2 | This is a simple plugin to add the ability to interactively select kubernetes resources
 3 | and print that resource to `stdout`.
 4 | 
 5 | ### Examples
 6 | 
 7 | ```sh
 8 | # This allows interactive selection of a pod, and then creates a terminal session
 9 | kubectl exec `kubectl select pods` -it sh
10 | ```
11 | 
12 | ### Building
13 | ```
14 | go get github.com/brendandburns/kubectl-select
15 | ```
16 | 
17 | ### Installing
18 | ```
19 | sudo cp $GOPATH/bin/kubectl-select /usr/local/bin/kubectl-select
20 | ```
21 | 


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/kubectl-select.go:
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 1 | package main
 2 | 
 3 | import (
 4 | 	"bufio"
 5 | 	"encoding/json"
 6 | 	"fmt"
 7 | 	"io/ioutil"
 8 | 	"os"
 9 | 	"os/exec"
10 | 	"strconv"
11 | 	"strings"
12 | )
13 | 
14 | func main() {
15 | 	args := append([]string{"get"}, os.Args[1:]...)
16 | 	args = append(args, "-o=json")
17 | 	cmd := exec.Command("kubectl", args...)
18 | 	stdout, _ := cmd.StdoutPipe()
19 | 	if err := cmd.Start(); err != nil {
20 | 		fmt.Printf("%v %v\n", cmd.Stderr, cmd.Stdout)
21 | 		panic(err)
22 | 	}
23 | 	data, _ := ioutil.ReadAll(stdout)
24 | 	cmd.Wait()
25 | 
26 | 	var obj interface{}
27 | 	json.Unmarshal(data, &obj)
28 | 	items := obj.(map[string]interface{})["items"].([]interface{})
29 | 	names := make([]string, len(items))
30 | 	for ix := range items {
31 | 		item := items[ix]
32 | 		name := item.(map[string]interface{})["metadata"].(map[string]interface{})["name"]
33 | 		names[ix] = name.(string)
34 | 		os.Stderr.Write([]byte(fmt.Sprintf("%d] %s\n", (ix + 1), name)))
35 | 	}
36 | 
37 | 	input := bufio.NewReader(os.Stdin)
38 | 	os.Stderr.Write([]byte("Select an item: "))
39 | 	selection, _ := input.ReadString('\n')
40 | 	ix, _ := strconv.Atoi(strings.TrimSpace(selection))
41 | 	ix = ix - 1
42 | 	if ix < 0 || ix >= len(items) {
43 | 		panic("invalid index")
44 | 	}
45 | 	fmt.Printf("%s\n", names[ix])	
46 | }
47 | 


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