mirror of https://github.com/helm/helm
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
293 lines
8.9 KiB
293 lines
8.9 KiB
/*
|
|
Copyright 2015 The Kubernetes Authors All rights reserved.
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package main
|
|
|
|
import (
|
|
"github.com/kubernetes/deployment-manager/resourcifier/configurator"
|
|
"github.com/kubernetes/deployment-manager/util"
|
|
|
|
"encoding/json"
|
|
"errors"
|
|
"flag"
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
"log"
|
|
"net"
|
|
"net/http"
|
|
"net/url"
|
|
"os"
|
|
|
|
"github.com/ghodss/yaml"
|
|
"github.com/gorilla/mux"
|
|
)
|
|
|
|
var configurations = []Route{
|
|
{"ListConfigurations", "/configurations/{type}", "GET", listConfigurationsHandlerFunc, ""},
|
|
{"GetConfiguration", "/configurations/{type}/{name}", "GET", getConfigurationHandlerFunc, ""},
|
|
{"CreateConfiguration", "/configurations", "POST", createConfigurationHandlerFunc, "JSON"},
|
|
{"DeleteConfiguration", "/configurations", "DELETE", deleteConfigurationHandlerFunc, "JSON"},
|
|
{"PutConfiguration", "/configurations", "PUT", putConfigurationHandlerFunc, "JSON"},
|
|
}
|
|
|
|
var (
|
|
maxLength = flag.Int64("maxLength", 1024*8, "The maximum length (KB) of a configuration.")
|
|
kubePath = flag.String("kubectl", "./kubectl", "The path to the kubectl binary.")
|
|
kubeService = flag.String("service", "", "The DNS name of the kubernetes service.")
|
|
kubeServer = flag.String("server", "", "The IP address and optional port of the kubernetes master.")
|
|
kubeInsecure = flag.Bool("insecure-skip-tls-verify", false, "Do not check the server's certificate for validity.")
|
|
kubeConfig = flag.String("config", "", "Path to a kubeconfig file.")
|
|
kubeCertAuth = flag.String("certificate-authority", "", "Path to a file for the certificate authority.")
|
|
kubeClientCert = flag.String("client-certificate", "", "Path to a client certificate file.")
|
|
kubeClientKey = flag.String("client-key", "", "Path to a client key file.")
|
|
kubeToken = flag.String("token", "", "A service account token.")
|
|
kubeUsername = flag.String("username", "", "The username to use for basic auth.")
|
|
kubePassword = flag.String("password", "", "The password to use for basic auth.")
|
|
)
|
|
|
|
var backend *configurator.Configurator
|
|
|
|
func init() {
|
|
if !flag.Parsed() {
|
|
flag.Parse()
|
|
}
|
|
|
|
routes = append(routes, configurations...)
|
|
backend = getConfigurator()
|
|
}
|
|
|
|
func listConfigurationsHandlerFunc(w http.ResponseWriter, r *http.Request) {
|
|
handler := "resourcifier: list configurations"
|
|
util.LogHandlerEntry(handler, r)
|
|
rtype, err := getPathVariable(w, r, "type", handler)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
c := &configurator.Configuration{
|
|
[]configurator.Resource{
|
|
{Type: rtype},
|
|
},
|
|
}
|
|
|
|
output, err := backend.Configure(c, configurator.GetOperation)
|
|
if err != nil {
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
|
|
return
|
|
}
|
|
|
|
util.LogHandlerExit(handler, http.StatusOK, output, w)
|
|
util.WriteYAML(handler, w, []byte(output), http.StatusOK)
|
|
}
|
|
|
|
func getConfigurationHandlerFunc(w http.ResponseWriter, r *http.Request) {
|
|
handler := "resourcifier: get configuration"
|
|
util.LogHandlerEntry(handler, r)
|
|
rtype, err := getPathVariable(w, r, "type", handler)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
rname, err := getPathVariable(w, r, "name", handler)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
c := &configurator.Configuration{
|
|
[]configurator.Resource{
|
|
{Name: rname, Type: rtype},
|
|
},
|
|
}
|
|
|
|
output, err := backend.Configure(c, configurator.GetOperation)
|
|
if err != nil {
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
|
|
return
|
|
}
|
|
|
|
util.LogHandlerExit(handler, http.StatusOK, output, w)
|
|
util.WriteYAML(handler, w, []byte(output), http.StatusOK)
|
|
}
|
|
|
|
func createConfigurationHandlerFunc(w http.ResponseWriter, r *http.Request) {
|
|
handler := "resourcifier: create configuration"
|
|
util.LogHandlerEntry(handler, r)
|
|
defer r.Body.Close()
|
|
c := getConfiguration(w, r, handler)
|
|
if c != nil {
|
|
_, err := backend.Configure(c, configurator.CreateOperation)
|
|
if err != nil {
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
|
|
return
|
|
}
|
|
|
|
util.LogHandlerExitWithYAML(handler, w, c, http.StatusCreated)
|
|
return
|
|
}
|
|
|
|
util.LogHandlerExit(handler, http.StatusOK, "OK", w)
|
|
}
|
|
|
|
func deleteConfigurationHandlerFunc(w http.ResponseWriter, r *http.Request) {
|
|
handler := "resourcifier: delete configuration"
|
|
util.LogHandlerEntry(handler, r)
|
|
defer r.Body.Close()
|
|
c := getConfiguration(w, r, handler)
|
|
if c != nil {
|
|
if _, err := backend.Configure(c, configurator.DeleteOperation); err != nil {
|
|
e := errors.New("cannot delete configuration: " + err.Error() + "\n")
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
|
|
return
|
|
}
|
|
|
|
w.WriteHeader(http.StatusNoContent)
|
|
util.LogHandlerExit(handler, http.StatusNoContent, "No Content", w)
|
|
return
|
|
}
|
|
|
|
util.LogHandlerExit(handler, http.StatusOK, "OK", w)
|
|
}
|
|
|
|
func putConfigurationHandlerFunc(w http.ResponseWriter, r *http.Request) {
|
|
handler := "resourcifier: update configuration"
|
|
util.LogHandlerEntry(handler, r)
|
|
defer r.Body.Close()
|
|
c := getConfiguration(w, r, handler)
|
|
if c != nil {
|
|
if _, err := backend.Configure(c, configurator.ReplaceOperation); err != nil {
|
|
e := errors.New("cannot replace configuration: " + err.Error() + "\n")
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
|
|
return
|
|
}
|
|
|
|
util.LogHandlerExitWithYAML(handler, w, c, http.StatusCreated)
|
|
return
|
|
}
|
|
|
|
util.LogHandlerExit(handler, http.StatusOK, "OK", w)
|
|
}
|
|
|
|
func getConfigurator() *configurator.Configurator {
|
|
if *kubePath == "" {
|
|
log.Fatalf("kubectl path cannot be empty")
|
|
}
|
|
|
|
// If a configuration file is specified, then it will provide the server
|
|
// address and credentials. If not, then we check for the server address
|
|
// and credentials as individual flags.
|
|
var args []string
|
|
if *kubeConfig != "" {
|
|
*kubeConfig = os.ExpandEnv(*kubeConfig)
|
|
args = append(args, fmt.Sprintf("--kubeconfig=%s", *kubeConfig))
|
|
} else {
|
|
if *kubeServer != "" {
|
|
args = append(args, fmt.Sprintf("--server=https://%s", *kubeServer))
|
|
} else if *kubeService != "" {
|
|
addrs, err := net.LookupHost(*kubeService)
|
|
if err != nil || len(addrs) < 1 {
|
|
log.Fatalf("cannot resolve DNS name: %v", *kubeService)
|
|
}
|
|
|
|
args = append(args, fmt.Sprintf("--server=https://%s", addrs[0]))
|
|
}
|
|
|
|
if *kubeInsecure {
|
|
args = append(args, "--insecure-skip-tls-verify")
|
|
} else {
|
|
if *kubeCertAuth != "" {
|
|
args = append(args, fmt.Sprintf("--certificate-authority=%s", *kubeCertAuth))
|
|
if *kubeClientCert == "" {
|
|
args = append(args, fmt.Sprintf("--client-certificate=%s", *kubeClientCert))
|
|
}
|
|
|
|
if *kubeClientKey == "" {
|
|
args = append(args, fmt.Sprintf("--client-key=%s", *kubeClientKey))
|
|
}
|
|
}
|
|
|
|
if *kubeToken == "" {
|
|
args = append(args, fmt.Sprintf("--token=%s", *kubeToken))
|
|
} else {
|
|
if *kubeUsername != "" {
|
|
args = append(args, fmt.Sprintf("--username=%s", *kubeUsername))
|
|
}
|
|
|
|
if *kubePassword != "" {
|
|
args = append(args, fmt.Sprintf("--password=%s", *kubePassword))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return configurator.NewConfigurator(*kubePath, args)
|
|
}
|
|
|
|
func getPathVariable(w http.ResponseWriter, r *http.Request, variable, handler string) (string, error) {
|
|
vars := mux.Vars(r)
|
|
variable, ok := vars[variable]
|
|
if !ok {
|
|
e := errors.New(fmt.Sprintf("%s name not found in URL", variable))
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
|
|
return "", e
|
|
}
|
|
|
|
unescaped, err := url.QueryUnescape(variable)
|
|
if err != nil {
|
|
e := fmt.Errorf("cannot decode name (%v)", variable)
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
|
|
return "", e
|
|
}
|
|
|
|
return unescaped, nil
|
|
}
|
|
|
|
func getConfiguration(w http.ResponseWriter, r *http.Request, handler string) *configurator.Configuration {
|
|
b := io.LimitReader(r.Body, *maxLength*1024)
|
|
y, err := ioutil.ReadAll(b)
|
|
if err != nil {
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
|
|
return nil
|
|
}
|
|
|
|
// Reject the input if it exceeded the length limit,
|
|
// since we may not have read all of it into the buffer.
|
|
if _, err = b.Read(make([]byte, 0, 1)); err != io.EOF {
|
|
e := fmt.Errorf("configuration exceeds maximum length of %d KB.", *maxLength)
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
|
|
return nil
|
|
}
|
|
|
|
j, err := yaml.YAMLToJSON(y)
|
|
if err != nil {
|
|
e := errors.New(err.Error() + "\n" + string(y))
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
|
|
return nil
|
|
}
|
|
|
|
c := &configurator.Configuration{}
|
|
if err := json.Unmarshal(j, c); err != nil {
|
|
e := errors.New(err.Error() + "\n" + string(j))
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
|
|
return nil
|
|
}
|
|
|
|
if len(c.Resources) < 1 {
|
|
e := fmt.Errorf("configuration is empty")
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
|
|
return nil
|
|
}
|
|
|
|
return c
|
|
}
|