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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,67 +1,65 @@ | ||
| package k8s | ||
|
|
||
| import ( | ||
| "context" | ||
| "os" | ||
| "path/filepath" | ||
| "bytes" | ||
| "fmt" | ||
| "io" | ||
| "time" | ||
|
|
||
| "github.com/flanksource/commons/files" | ||
| "github.com/flanksource/commons/logger" | ||
| "github.com/flanksource/kommons" | ||
| "github.com/pkg/errors" | ||
| "gopkg.in/yaml.v2" | ||
| "github.com/flanksource/incident-commander/api" | ||
| v1 "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/client-go/kubernetes" | ||
| "k8s.io/client-go/kubernetes/fake" | ||
| "k8s.io/client-go/rest" | ||
| "k8s.io/client-go/tools/clientcmd" | ||
| "k8s.io/client-go/util/homedir" | ||
| ) | ||
|
|
||
| func NewKommonsClient() (*kommons.Client, kubernetes.Interface, error) { | ||
| kubeConfig := GetKubeconfig() | ||
| config, err := clientcmd.BuildConfigFromFlags("", kubeConfig) | ||
| if err != nil { | ||
| return nil, fake.NewSimpleClientset(), errors.Wrap(err, "Failed to generate rest config") | ||
| } | ||
| Client := kommons.NewClient(config, logger.StandardLogger()) | ||
| if Client == nil { | ||
| return nil, fake.NewSimpleClientset(), errors.New("could not create kommons client") | ||
| } | ||
| // WaitForPod waits for a pod to be in the specified phase, or returns an | ||
| // error if the timeout is exceeded | ||
| func WaitForPod(ctx api.Context, name string, timeout time.Duration, phases ...v1.PodPhase) error { | ||
| pods := ctx.Kubernetes().CoreV1().Pods(ctx.Namespace()) | ||
| start := time.Now() | ||
| for { | ||
| pod, err := pods.Get(ctx, name, metav1.GetOptions{}) | ||
| if start.Add(timeout).Before(time.Now()) { | ||
| return fmt.Errorf("timeout exceeded waiting for %s is %s, error: %v", name, pod.Status.Phase, err) | ||
| } | ||
|
|
||
| if pod == nil || pod.Status.Phase == v1.PodPending { | ||
| time.Sleep(5 * time.Second) | ||
| continue | ||
| } | ||
| if pod.Status.Phase == v1.PodFailed { | ||
| return nil | ||
| } | ||
|
|
||
| k8s, err := Client.GetClientset() | ||
| if err == nil { | ||
| return Client, k8s, nil | ||
| for _, phase := range phases { | ||
| if pod.Status.Phase == phase { | ||
| return nil | ||
| } | ||
| } | ||
| } | ||
| return nil, fake.NewSimpleClientset(), errors.Wrap(err, "failed to create k8s client") | ||
| } | ||
|
|
||
| func GetClusterName(config *rest.Config) string { | ||
| clientset, err := kubernetes.NewForConfig(config) | ||
| if err != nil { | ||
| return "" | ||
| func GetPodLogs(ctx api.Context, podName, container string) (string, error) { | ||
| podLogOptions := v1.PodLogOptions{} | ||
| if container != "" { | ||
| podLogOptions.Container = container | ||
| } | ||
| kubeadmConfig, err := clientset.CoreV1().ConfigMaps("kube-system").Get(context.TODO(), "kubeadm-config", metav1.GetOptions{}) | ||
|
|
||
| req := ctx.Kubernetes().CoreV1().Pods(ctx.Namespace()).GetLogs(podName, &podLogOptions) | ||
| podLogs, err := req.Stream(ctx) | ||
| if err != nil { | ||
| return "" | ||
| return "", err | ||
| } | ||
| clusterConfiguration := make(map[string]interface{}) | ||
| defer podLogs.Close() | ||
|
|
||
| if err := yaml.Unmarshal([]byte(kubeadmConfig.Data["ClusterConfiguration"]), &clusterConfiguration); err != nil { | ||
| return "" | ||
| buf := new(bytes.Buffer) | ||
| _, err = io.Copy(buf, podLogs) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| return clusterConfiguration["clusterName"].(string) | ||
|
|
||
| return buf.String(), nil | ||
| } | ||
|
|
||
| func GetKubeconfig() string { | ||
| var kubeConfig string | ||
| if os.Getenv("KUBECONFIG") != "" { | ||
| kubeConfig = os.Getenv("KUBECONFIG") | ||
| } else if home := homedir.HomeDir(); home != "" { | ||
| kubeConfig = filepath.Join(home, ".kube", "config") | ||
| if !files.Exists(kubeConfig) { | ||
| kubeConfig = "" | ||
| } | ||
| } | ||
| return kubeConfig | ||
| func DeletePod(ctx api.Context, name string) error { | ||
| return ctx.Kubernetes().CoreV1().Pods(ctx.Namespace()).Delete(ctx, name, metav1.DeleteOptions{}) | ||
| } |
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