appmanager: fix tar support, auto-create namespace
diff --git a/appmanager/cmd/main.go b/appmanager/cmd/main.go
index 5fa297f..dd42825 100644
--- a/appmanager/cmd/main.go
+++ b/appmanager/cmd/main.go
@@ -1,18 +1,28 @@
package main
import (
+ "context"
"flag"
"fmt"
"io"
"log"
"net/http"
"os"
+ "syscall"
"github.com/golang/glog"
+ "github.com/google/uuid"
+ apiv1 "k8s.io/api/core/v1"
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ "k8s.io/client-go/kubernetes"
+ corev1 "k8s.io/client-go/kubernetes/typed/core/v1"
+ "k8s.io/client-go/rest"
+ "k8s.io/client-go/tools/clientcmd"
app "github.com/giolekva/pcloud/appmanager"
)
+var kubeconfig = flag.String("kubeconfig", "", "Absolute path to the kubeconfig file.")
var port = flag.Int("port", 1234, "Port to listen on.")
var apiAddr = flag.String("api_addr", "", "PCloud API service address.")
@@ -30,7 +40,11 @@
</html>
`
-func helmHandler(w http.ResponseWriter, r *http.Request) {
+type handler struct {
+ nsClient corev1.NamespaceInterface
+}
+
+func (hn *handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
if r.Method == "GET" {
_, err := io.WriteString(w, helmUploadPage)
if err != nil {
@@ -44,7 +58,18 @@
return
}
defer file.Close()
- p := "/tmp/" + handler.Filename
+ tmp := uuid.New().String()
+ if tmp == "" {
+ http.Error(w, "Could not generate temp dir", http.StatusInternalServerError)
+ return
+ }
+ p := "/tmp/" + tmp
+ // TODO(giolekva): defer rmdir
+ if err := syscall.Mkdir(p, 0777); err != nil {
+ http.Error(w, "Could not create temp dir", http.StatusInternalServerError)
+ return
+ }
+ p += "/" + handler.Filename
f, err := os.OpenFile(p, os.O_WRONLY|os.O_CREATE, 0666)
if err != nil {
fmt.Println(err)
@@ -56,7 +81,7 @@
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
- if err = installHelmChart(p); err != nil {
+ if err = installHelmChart(p, hn.nsClient); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
@@ -64,25 +89,59 @@
}
}
-func installHelmChart(path string) error {
- h, err := app.HelmChartFromDir("/Users/lekva/dev/go/src/github.com/giolekva/pcloud/apps/rpuppy/chart")
+func installHelmChart(path string, nsClient corev1.NamespaceInterface) error {
+ h, err := app.HelmChartFromTar(path)
if err != nil {
return err
}
- err = app.InstallSchema(h.Schema, *apiAddr)
- if err != nil {
+ if err = app.InstallSchema(h.Schema, *apiAddr); err != nil {
return err
}
glog.Infof("Installed schema: %s", h.Schema)
- err = h.Install(
+ namespace := fmt.Sprintf("app-%s", h.Name)
+ if err = createNamespace(nsClient, namespace); err != nil {
+ return err
+ }
+ glog.Infof("Created namespaces: %s", namespace)
+ if err = h.Install(
"/usr/local/bin/helm",
- map[string]string{})
+ map[string]string{}); err != nil {
+ return err
+ }
+ glog.Info("Installed")
+ return nil
+}
+
+func createNamespace(nsClient corev1.NamespaceInterface, name string) error {
+ _, err := nsClient.Create(
+ context.TODO(),
+ &apiv1.Namespace{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: name}},
+ metav1.CreateOptions{})
return err
}
+func getKubeConfig() (*rest.Config, error) {
+ if *kubeconfig != "" {
+ return clientcmd.BuildConfigFromFlags("", *kubeconfig)
+ } else {
+ return rest.InClusterConfig()
+ }
+}
+
func main() {
flag.Parse()
- http.HandleFunc("/", helmHandler)
+ config, err := getKubeConfig()
+ if err != nil {
+ glog.Fatalf("Could not initialize Kubeconfig: %v", err)
+ }
+ clientset, err := kubernetes.NewForConfig(config)
+ if err != nil {
+ glog.Fatalf("Could not create Kubernetes API client: %v", err)
+ }
+ namespaces := clientset.CoreV1().Namespaces()
+ http.Handle("/", &handler{namespaces})
log.Fatal(http.ListenAndServe(fmt.Sprintf(":%d", *port), nil))
}
diff --git a/appmanager/go.mod b/appmanager/go.mod
index 6e4e2e5..c0c0e4c 100644
--- a/appmanager/go.mod
+++ b/appmanager/go.mod
@@ -4,6 +4,17 @@
require (
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
+ github.com/golang/protobuf v1.4.1 // indirect
+ github.com/googleapis/gnostic v0.4.1 // indirect
+ github.com/imdario/mergo v0.3.9 // indirect
+ golang.org/x/crypto v0.0.0-20200510223506-06a226fb4e37 // indirect
+ golang.org/x/net v0.0.0-20200506145744-7e3656a0809f // indirect
+ golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d // indirect
+ golang.org/x/time v0.0.0-20200416051211-89c76fbcd5d1 // indirect
gopkg.in/yaml.v2 v2.2.8
gopkg.in/yaml.v3 v3.0.0-20200506231410-2ff61e1afc86 // indirect
+ k8s.io/api v0.18.2
+ k8s.io/apimachinery v0.18.2
+ k8s.io/client-go v0.18.2
+
)
diff --git a/appmanager/go.sum b/appmanager/go.sum
index 20097b2..285f078 100644
--- a/appmanager/go.sum
+++ b/appmanager/go.sum
@@ -1,7 +1,219 @@
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+sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
+sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
+sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
diff --git a/appmanager/helm.go b/appmanager/helm.go
index 5fd7e8e..7882822 100644
--- a/appmanager/helm.go
+++ b/appmanager/helm.go
@@ -9,6 +9,7 @@
"path"
"path/filepath"
"strings"
+ "syscall"
"github.com/golang/glog"
"gopkg.in/yaml.v2"
@@ -47,12 +48,21 @@
}
dir := filepath.Dir(chartTar)
archive := filepath.Base(chartTar)
- extractDir := strings.TrimSuffix(archive, ".tar.gz")
- cmd := exec.Command(fmt.Sprintf("cd %s && rm -rf %s && tar -ztvf %s -C %s", dir, extractDir, archive, extractDir))
- if err := cmd.Run(); err != nil {
+ if err := syscall.Chdir(dir); err != nil {
return nil, err
}
- return HelmChartFromDir(dir + "/" + extractDir)
+ cmd := exec.Command("tar", "-xvf", archive)
+ var stdout strings.Builder
+ var stderr strings.Builder
+ cmd.Stdout = &stdout
+ cmd.Stderr = &stderr
+ if err := cmd.Run(); err != nil {
+ glog.Info("-----")
+ return nil, errors.New(stderr.String())
+ }
+ glog.Info(stdout.String())
+ glog.Info(dir)
+ return HelmChartFromDir(dir)
}
func (h *HelmChart) Install(