forked from docker/compose-on-kubernetes
-
Notifications
You must be signed in to change notification settings - Fork 0
/
main.go
134 lines (127 loc) · 3.78 KB
/
main.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
package main
import (
"encoding/json"
"io/ioutil"
"os"
"path/filepath"
"github.com/docker/compose-on-kubernetes/api/client/clientset"
"github.com/docker/compose-on-kubernetes/api/labels"
"github.com/docker/compose-on-kubernetes/internal/controller"
"github.com/docker/compose-on-kubernetes/internal/stackresources"
"github.com/spf13/cobra"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
k8sclientset "k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/clientcmd"
)
type options struct {
kubeconfig string
namespace string
outdir string
}
func main() {
opts := &options{}
cmd := &cobra.Command{
Use: "reconciliation-recorder [OPTIONS] [stack name [stack name...]]",
RunE: func(c *cobra.Command, args []string) error {
return run(args, opts)
},
}
cmd.Flags().StringVar(&opts.kubeconfig, "kubeconfig", "", "kubeconfig path")
cmd.Flags().StringVarP(&opts.namespace, "namespace", "n", "default", "namespace of the stack to capture")
cmd.Flags().StringVarP(&opts.outdir, "out", "o", "./out", "output directory where to put assets")
if err := cmd.Execute(); err != nil {
panic(err)
}
}
func run(stacksToProceed []string, opts *options) error {
if err := os.MkdirAll(opts.outdir, 0755); err != nil {
return err
}
loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
loadingRules.ExplicitPath = opts.kubeconfig
cmdConfig, err := loadingRules.Load()
if err != nil {
return err
}
clientCfg := clientcmd.NewDefaultClientConfig(*cmdConfig, &clientcmd.ConfigOverrides{})
restCfg, err := clientCfg.ClientConfig()
if err != nil {
return err
}
stacks, err := clientset.NewForConfig(restCfg)
if err != nil {
return err
}
k8sclient, err := k8sclientset.NewForConfig(restCfg)
if err != nil {
return err
}
if len(stacksToProceed) == 0 {
allStacks, err := stacks.ComposeLatest().Stacks(opts.namespace).List(metav1.ListOptions{})
if err != nil {
return err
}
for _, s := range allStacks.Items {
stacksToProceed = append(stacksToProceed, s.Name)
}
}
for _, name := range stacksToProceed {
if err = processStack(stacks, k8sclient, name, opts.namespace, opts.outdir); err != nil {
return err
}
}
return nil
}
func processStack(stacks clientset.Interface, k8sclient k8sclientset.Interface, name, namespace, outdir string) error {
stack, err := stacks.ComposeLatest().Stacks(namespace).Get(name, metav1.GetOptions{})
if err != nil {
return err
}
services, err := k8sclient.CoreV1().Services(namespace).List(metav1.ListOptions{LabelSelector: labels.SelectorForStack(name)})
if err != nil {
return err
}
deployments, err := k8sclient.AppsV1().Deployments(namespace).List(metav1.ListOptions{LabelSelector: labels.SelectorForStack(name)})
if err != nil {
return err
}
daemonsets, err := k8sclient.AppsV1().DaemonSets(namespace).List(metav1.ListOptions{LabelSelector: labels.SelectorForStack(name)})
if err != nil {
return err
}
statefulsets, err := k8sclient.AppsV1().StatefulSets(namespace).List(metav1.ListOptions{LabelSelector: labels.SelectorForStack(name)})
if err != nil {
return err
}
var allResources []interface{}
for _, r := range services.Items {
local := r
allResources = append(allResources, &local)
}
for _, r := range deployments.Items {
local := r
allResources = append(allResources, &local)
}
for _, r := range daemonsets.Items {
local := r
allResources = append(allResources, &local)
}
for _, r := range statefulsets.Items {
local := r
allResources = append(allResources, &local)
}
childrenState, err := stackresources.NewStackState(allResources...)
if err != nil {
return err
}
tc := &controller.TestCase{
Stack: stack,
Children: childrenState,
}
payload, err := json.Marshal(tc)
if err != nil {
return err
}
path := filepath.Join(outdir, name+".json")
return ioutil.WriteFile(path, payload, 0644)
}