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585 lines
17 KiB
585 lines
17 KiB
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"encoding/json"
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"flag"
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"fmt"
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"io"
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"io/ioutil"
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"log"
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"net"
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"net/http"
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"net/url"
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"os"
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"regexp"
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"strings"
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"github.com/ghodss/yaml"
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"github.com/gorilla/mux"
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"github.com/kubernetes/deployment-manager/common"
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"github.com/kubernetes/deployment-manager/manager/manager"
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"github.com/kubernetes/deployment-manager/manager/repository"
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"github.com/kubernetes/deployment-manager/registry"
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"github.com/kubernetes/deployment-manager/util"
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)
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var deployments = []Route{
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{"ListDeployments", "/deployments", "GET", listDeploymentsHandlerFunc, ""},
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{"GetDeployment", "/deployments/{deployment}", "GET", getDeploymentHandlerFunc, ""},
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{"CreateDeployment", "/deployments", "POST", createDeploymentHandlerFunc, "JSON"},
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{"DeleteDeployment", "/deployments/{deployment}", "DELETE", deleteDeploymentHandlerFunc, ""},
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{"PutDeployment", "/deployments/{deployment}", "PUT", putDeploymentHandlerFunc, "JSON"},
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{"ListManifests", "/deployments/{deployment}/manifests", "GET", listManifestsHandlerFunc, ""},
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{"GetManifest", "/deployments/{deployment}/manifests/{manifest}", "GET", getManifestHandlerFunc, ""},
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{"Expand", "/expand", "POST", expandHandlerFunc, ""},
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{"ListTypes", "/types", "GET", listTypesHandlerFunc, ""},
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{"ListTypeInstances", "/types/{type}/instances", "GET", listTypeInstancesHandlerFunc, ""},
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{"ListRegistries", "/registries", "GET", listRegistriesHandlerFunc, ""},
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{"GetRegistry", "/registries/{registry}", "GET", getRegistryHandlerFunc, ""},
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{"CreateRegistry", "/registries/{registry}", "POST", createRegistryHandlerFunc, "JSON"},
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{"ListRegistryTypes", "/registries/{registry}/types", "GET", listRegistryTypesHandlerFunc, ""},
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{"GetDownloadURLs", "/registries/{registry}/types/{type}", "GET", getDownloadURLsHandlerFunc, ""},
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{"GetFile", "/registries/{registry}/download", "GET", getFileHandlerFunc, ""},
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{"CreateCredential", "/credentials/{credential}", "POST", createCredentialHandlerFunc, "JSON"},
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{"GetCredential", "/credentials/{credential}", "GET", getCredentialHandlerFunc, ""},
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}
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var (
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maxLength = flag.Int64("maxLength", 1024, "The maximum length (KB) of a template.")
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expanderName = flag.String("expander", "expandybird-service", "The DNS name of the expander service.")
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expanderURL = flag.String("expanderURL", "", "The URL for the expander service.")
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deployerName = flag.String("deployer", "resourcifier-service", "The DNS name of the deployer service.")
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deployerURL = flag.String("deployerURL", "", "The URL for the deployer service.")
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credentialFile = flag.String("credentialFile", "", "Local file to use for credentials.")
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credentialSecrets = flag.Bool("credentialSecrets", true, "Use secrets for credentials.")
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)
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var backend manager.Manager
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func init() {
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if !flag.Parsed() {
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flag.Parse()
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}
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routes = append(routes, deployments...)
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var credentialProvider common.CredentialProvider
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if *credentialFile != "" {
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if *credentialSecrets {
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panic(fmt.Errorf("Both credentialFile and credentialSecrets are set"))
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}
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var err error
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credentialProvider, err = registry.NewFilebasedCredentialProvider(*credentialFile)
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if err != nil {
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panic(fmt.Errorf("cannot create credential provider %s: %s", *credentialFile, err))
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}
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} else if *credentialSecrets {
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credentialProvider = registry.NewSecretsCredentialProvider()
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} else {
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credentialProvider = registry.NewInmemCredentialProvider()
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}
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backend = newManager(credentialProvider)
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}
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func newManager(cp common.CredentialProvider) manager.Manager {
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service := registry.NewInmemRegistryService()
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registryProvider := registry.NewDefaultRegistryProvider(cp, service)
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resolver := manager.NewTypeResolver(registryProvider, util.DefaultHTTPClient())
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expander := manager.NewExpander(getServiceURL(*expanderURL, *expanderName), resolver)
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deployer := manager.NewDeployer(getServiceURL(*deployerURL, *deployerName))
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r := repository.NewMapBasedRepository()
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credentialProvider := cp
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return manager.NewManager(expander, deployer, r, registryProvider, service, credentialProvider)
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}
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func getServiceURL(serviceURL, serviceName string) string {
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if serviceURL == "" {
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serviceURL = makeEnvVariableURL(serviceName)
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if serviceURL == "" {
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addrs, err := net.LookupHost(serviceName)
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if err != nil || len(addrs) < 1 {
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log.Fatalf("cannot resolve service:%v. environment:%v", serviceName, os.Environ())
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}
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serviceURL = fmt.Sprintf("https://%s", addrs[0])
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}
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}
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return serviceURL
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}
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// makeEnvVariableURL takes a service name and returns the value of the
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// environment variable that identifies its URL, if it exists, or the empty
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// string, if it doesn't.
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func makeEnvVariableURL(str string) string {
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prefix := makeEnvVariableName(str)
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url := os.Getenv(prefix + "_PORT")
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return strings.Replace(url, "tcp", "http", 1)
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}
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// makeEnvVariableName is copied from the Kubernetes source,
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// which is referenced by the documentation for service environment variables.
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func makeEnvVariableName(str string) string {
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// TODO: If we simplify to "all names are DNS1123Subdomains" this
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// will need two tweaks:
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// 1) Handle leading digits
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// 2) Handle dots
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return strings.ToUpper(strings.Replace(str, "-", "_", -1))
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}
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func listDeploymentsHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: list deployments"
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util.LogHandlerEntry(handler, r)
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l, err := backend.ListDeployments()
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if err != nil {
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util.LogAndReturnError(handler, http.StatusInternalServerError, err, w)
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return
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}
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var names []string
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for _, d := range l {
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names = append(names, d.Name)
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}
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util.LogHandlerExitWithJSON(handler, w, names, http.StatusOK)
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}
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func getDeploymentHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: get deployment"
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util.LogHandlerEntry(handler, r)
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name, err := getPathVariable(w, r, "deployment", handler)
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if err != nil {
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return
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}
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d, err := backend.GetDeployment(name)
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if err != nil {
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util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
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return
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}
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util.LogHandlerExitWithJSON(handler, w, d, http.StatusOK)
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}
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func createDeploymentHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: create deployment"
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util.LogHandlerEntry(handler, r)
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defer r.Body.Close()
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t := getTemplate(w, r, handler)
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if t != nil {
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d, err := backend.CreateDeployment(t)
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if err != nil {
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util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
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return
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}
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util.LogHandlerExitWithJSON(handler, w, d, http.StatusCreated)
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return
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}
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}
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func deleteDeploymentHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: delete deployment"
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util.LogHandlerEntry(handler, r)
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defer r.Body.Close()
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name, err := getPathVariable(w, r, "deployment", handler)
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if err != nil {
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return
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}
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d, err := backend.DeleteDeployment(name, true)
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if err != nil {
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util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
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return
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}
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util.LogHandlerExitWithJSON(handler, w, d, http.StatusOK)
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}
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func putDeploymentHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: update deployment"
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util.LogHandlerEntry(handler, r)
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defer r.Body.Close()
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name, err := getPathVariable(w, r, "deployment", handler)
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if err != nil {
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return
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}
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t := getTemplate(w, r, handler)
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if t != nil {
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d, err := backend.PutDeployment(name, t)
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if err != nil {
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util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
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return
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}
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util.LogHandlerExitWithJSON(handler, w, d, http.StatusCreated)
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}
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}
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func getPathVariable(w http.ResponseWriter, r *http.Request, variable, handler string) (string, error) {
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vars := mux.Vars(r)
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escaped, ok := vars[variable]
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if !ok {
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e := fmt.Errorf("%s name not found in URL", variable)
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util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
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return "", e
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}
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unescaped, err := url.QueryUnescape(escaped)
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if err != nil {
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e := fmt.Errorf("cannot decode name (%v)", variable)
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util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
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return "", e
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}
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return unescaped, nil
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}
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func getTemplate(w http.ResponseWriter, r *http.Request, handler string) *common.Template {
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util.LogHandlerEntry(handler, r)
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j, err := getJSONFromRequest(w, r, handler)
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if err != nil {
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return nil
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}
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t := &common.Template{}
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if err := json.Unmarshal(j, t); err != nil {
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e := fmt.Errorf("%v\n%v", err, string(j))
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util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
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return nil
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}
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return t
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}
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func listManifestsHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: list manifests"
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util.LogHandlerEntry(handler, r)
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deploymentName, err := getPathVariable(w, r, "deployment", handler)
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if err != nil {
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return
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}
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m, err := backend.ListManifests(deploymentName)
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if err != nil {
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util.LogAndReturnError(handler, http.StatusInternalServerError, err, w)
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return
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}
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var manifestNames []string
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for _, manifest := range m {
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manifestNames = append(manifestNames, manifest.Name)
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}
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util.LogHandlerExitWithJSON(handler, w, manifestNames, http.StatusOK)
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}
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func getManifestHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: get manifest"
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util.LogHandlerEntry(handler, r)
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deploymentName, err := getPathVariable(w, r, "deployment", handler)
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if err != nil {
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return
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}
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manifestName, err := getPathVariable(w, r, "manifest", handler)
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if err != nil {
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return
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}
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m, err := backend.GetManifest(deploymentName, manifestName)
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if err != nil {
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util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
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return
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}
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util.LogHandlerExitWithJSON(handler, w, m, http.StatusOK)
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}
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func expandHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: expand config"
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util.LogHandlerEntry(handler, r)
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defer r.Body.Close()
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t := getTemplate(w, r, handler)
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if t != nil {
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c, err := backend.Expand(t)
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if err != nil {
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util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
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return
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}
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util.LogHandlerExitWithJSON(handler, w, c, http.StatusCreated)
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return
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}
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}
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// Putting Type handlers here for now because deployments.go
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// currently owns its own Manager backend and doesn't like to share.
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func listTypesHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: list types"
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util.LogHandlerEntry(handler, r)
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util.LogHandlerExitWithJSON(handler, w, backend.ListTypes(), http.StatusOK)
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}
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func listTypeInstancesHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: list instances"
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util.LogHandlerEntry(handler, r)
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typeName, err := getPathVariable(w, r, "type", handler)
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if err != nil {
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return
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}
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util.LogHandlerExitWithJSON(handler, w, backend.ListInstances(typeName), http.StatusOK)
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}
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// Putting Registry handlers here for now because deployments.go
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// currently owns its own Manager backend and doesn't like to share.
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func listRegistriesHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: list registries"
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util.LogHandlerEntry(handler, r)
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registries, err := backend.ListRegistries()
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if err != nil {
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return
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}
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util.LogHandlerExitWithJSON(handler, w, registries, http.StatusOK)
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}
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func getRegistryHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: get registry"
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util.LogHandlerEntry(handler, r)
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registryName, err := getPathVariable(w, r, "registry", handler)
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if err != nil {
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return
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}
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cr, err := backend.GetRegistry(registryName)
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if err != nil {
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util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
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return
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}
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util.LogHandlerExitWithJSON(handler, w, cr, http.StatusOK)
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}
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func getRegistry(w http.ResponseWriter, r *http.Request, handler string) *common.Registry {
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util.LogHandlerEntry(handler, r)
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j, err := getJSONFromRequest(w, r, handler)
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if err != nil {
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return nil
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}
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t := &common.Registry{}
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if err := json.Unmarshal(j, t); err != nil {
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e := fmt.Errorf("%v\n%v", err, string(j))
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util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
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return nil
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}
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return t
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}
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func createRegistryHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: create registry"
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util.LogHandlerEntry(handler, r)
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defer r.Body.Close()
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registryName, err := getPathVariable(w, r, "registry", handler)
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if err != nil {
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return
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}
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reg := getRegistry(w, r, handler)
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if reg.Name != registryName {
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e := fmt.Errorf("Registry name does not match %s != %s", reg.Name, registryName)
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util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
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return
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}
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if reg != nil {
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err = backend.CreateRegistry(reg)
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if err != nil {
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util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
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return
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}
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}
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util.LogHandlerExitWithJSON(handler, w, reg, http.StatusOK)
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}
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func listRegistryTypesHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: list registry types"
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util.LogHandlerEntry(handler, r)
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registryName, err := getPathVariable(w, r, "registry", handler)
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if err != nil {
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return
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}
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var regex *regexp.Regexp
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regexString, err := getPathVariable(w, r, "regex", handler)
|
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if err == nil {
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regex, err = regexp.Compile(regexString)
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if err != nil {
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util.LogAndReturnError(handler, http.StatusInternalServerError, err, w)
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return
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}
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}
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registryTypes, err := backend.ListRegistryTypes(registryName, regex)
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if err != nil {
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util.LogAndReturnError(handler, http.StatusInternalServerError, err, w)
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return
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}
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util.LogHandlerExitWithJSON(handler, w, registryTypes, http.StatusOK)
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}
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func getDownloadURLsHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: get download URLs"
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util.LogHandlerEntry(handler, r)
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registryName, err := getPathVariable(w, r, "registry", handler)
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if err != nil {
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return
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}
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|
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typeName, err := getPathVariable(w, r, "type", handler)
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if err != nil {
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return
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}
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tt, err := registry.ParseType(typeName)
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if err != nil {
|
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util.LogAndReturnError(handler, http.StatusInternalServerError, err, w)
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return
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}
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c, err := backend.GetDownloadURLs(registryName, tt)
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if err != nil {
|
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util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
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return
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}
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|
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urls := []string{}
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for _, u := range c {
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urls = append(urls, u.String())
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}
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util.LogHandlerExitWithJSON(handler, w, urls, http.StatusOK)
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}
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func getFileHandlerFunc(w http.ResponseWriter, r *http.Request) {
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handler := "manager: get file"
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util.LogHandlerEntry(handler, r)
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registryName, err := getPathVariable(w, r, "registry", handler)
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if err != nil {
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return
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}
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file := r.FormValue("file")
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if file == "" {
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return
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}
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b, err := backend.GetFile(registryName, file)
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if err != nil {
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util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
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return
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}
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util.LogHandlerExitWithJSON(handler, w, b, http.StatusOK)
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}
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|
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func getCredential(w http.ResponseWriter, r *http.Request, handler string) *common.RegistryCredential {
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util.LogHandlerEntry(handler, r)
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j, err := getJSONFromRequest(w, r, handler)
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if err != nil {
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return nil
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}
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|
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t := &common.RegistryCredential{}
|
|
if err := json.Unmarshal(j, t); err != nil {
|
|
e := fmt.Errorf("%v\n%v", err, string(j))
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
|
|
return nil
|
|
}
|
|
|
|
return t
|
|
}
|
|
|
|
func createCredentialHandlerFunc(w http.ResponseWriter, r *http.Request) {
|
|
handler := "manager: create credential"
|
|
util.LogHandlerEntry(handler, r)
|
|
defer r.Body.Close()
|
|
credentialName, err := getPathVariable(w, r, "credential", handler)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
c := getCredential(w, r, handler)
|
|
if c != nil {
|
|
err = backend.CreateCredential(credentialName, c)
|
|
if err != nil {
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
|
|
return
|
|
}
|
|
}
|
|
|
|
util.LogHandlerExitWithJSON(handler, w, c, http.StatusOK)
|
|
}
|
|
|
|
func getCredentialHandlerFunc(w http.ResponseWriter, r *http.Request) {
|
|
handler := "manager: get credential"
|
|
util.LogHandlerEntry(handler, r)
|
|
credentialName, err := getPathVariable(w, r, "credential", handler)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
c, err := backend.GetCredential(credentialName)
|
|
if err != nil {
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
|
|
return
|
|
}
|
|
|
|
util.LogHandlerExitWithJSON(handler, w, c, http.StatusOK)
|
|
}
|
|
|
|
func getJSONFromRequest(w http.ResponseWriter, r *http.Request, handler string) ([]byte, error) {
|
|
util.LogHandlerEntry(handler, r)
|
|
b := io.LimitReader(r.Body, *maxLength*1024)
|
|
y, err := ioutil.ReadAll(b)
|
|
if err != nil {
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
|
|
return []byte{}, err
|
|
}
|
|
|
|
// 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("template exceeds maximum length of %d KB", *maxLength)
|
|
util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
|
|
return []byte{}, err
|
|
}
|
|
|
|
if err := r.Body.Close(); err != nil {
|
|
util.LogAndReturnError(handler, http.StatusInternalServerError, err, w)
|
|
return []byte{}, err
|
|
}
|
|
|
|
return yaml.YAMLToJSON(y)
|
|
}
|