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429 lines
12 KiB
429 lines
12 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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"errors"
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"fmt"
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"log"
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"net/http"
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"strings"
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"github.com/kubernetes/helm/cmd/manager/manager"
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"github.com/kubernetes/helm/cmd/manager/repository"
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"github.com/kubernetes/helm/cmd/manager/repository/persistent"
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"github.com/kubernetes/helm/cmd/manager/repository/transient"
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"github.com/kubernetes/helm/cmd/manager/router"
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"github.com/kubernetes/helm/pkg/common"
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"github.com/kubernetes/helm/pkg/httputil"
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"github.com/kubernetes/helm/pkg/repo"
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"github.com/kubernetes/helm/pkg/util"
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)
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func registerDeploymentRoutes(c *router.Context, h *router.Handler) {
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h.Add("GET /healthz", healthz)
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h.Add("GET /deployments", listDeploymentsHandlerFunc)
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h.Add("GET /deployments/*", getDeploymentHandlerFunc)
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h.Add("POST /deployments", createDeploymentHandlerFunc)
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h.Add("DELETE /deployments/*", deleteDeploymentHandlerFunc)
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h.Add("PUT /deployments/*", putDeploymentHandlerFunc)
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h.Add("GET /deployments/*/manifests", listManifestsHandlerFunc)
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h.Add("GET /deployments/*/manifests/*", getManifestHandlerFunc)
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h.Add("POST /expand", expandHandlerFunc)
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h.Add("GET /charts", listChartsHandlerFunc)
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h.Add("GET /charts/*/instances", listChartInstancesHandlerFunc)
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h.Add("GET /charts/*/repository", getRepoForChartHandlerFunc)
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h.Add("GET /charts/*/metadata", getMetadataForChartHandlerFunc)
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h.Add("GET /charts/*", getChartHandlerFunc)
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h.Add("POST /credentials/*", createCredentialHandlerFunc)
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h.Add("GET /credentials/*", getCredentialHandlerFunc)
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}
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func healthz(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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log.Println("manager: healthz checkpoint")
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// TODO: This should check the availability of the repository, and fail if it
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// cannot connect.
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fmt.Fprintln(w, "OK")
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return nil
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}
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func setupDependencies(c *router.Context) error {
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var credentialProvider repo.ICredentialProvider
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if c.Config.CredentialFile != "" {
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if c.Config.CredentialSecrets {
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return errors.New("Both credentialFile and credentialSecrets are set")
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}
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var err error
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credentialProvider, err = repo.NewFilebasedCredentialProvider(c.Config.CredentialFile)
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if err != nil {
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return fmt.Errorf("cannot create credential provider %s: %s", c.Config.CredentialFile, err)
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}
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} else if *credentialSecrets {
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credentialProvider = repo.NewSecretsCredentialProvider()
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} else {
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credentialProvider = repo.NewInmemCredentialProvider()
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}
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c.CredentialProvider = credentialProvider
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c.Manager = newManager(c)
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return nil
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}
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const expanderPort = "8080"
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const deployerPort = "8080"
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func newManager(c *router.Context) manager.Manager {
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cfg := c.Config
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service := repo.NewInmemRepoService()
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cp := c.CredentialProvider
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rp := repo.NewRepoProvider(service, repo.NewGCSRepoProvider(cp), cp)
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expander := manager.NewExpander(util.GetServiceURL(cfg.ExpanderURL, cfg.ExpanderName, expanderPort), rp)
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deployer := manager.NewDeployer(util.GetServiceURL(cfg.DeployerURL, cfg.DeployerName, deployerPort))
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address := strings.TrimPrefix(util.GetServiceURL(cfg.MongoAddress, cfg.MongoName, cfg.MongoPort), "http://")
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repository := createRepository(address)
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return manager.NewManager(expander, deployer, repository, rp, service, c.CredentialProvider)
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}
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func createRepository(address string) repository.Repository {
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r, err := persistent.NewRepository(address)
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if err != nil {
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r = transient.NewRepository()
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}
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return r
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}
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func listDeploymentsHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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handler := "manager: list deployments"
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util.LogHandlerEntry(handler, r)
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l, err := c.Manager.ListDeployments()
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if err != nil {
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util.LogAndReturnError(handler, http.StatusInternalServerError, err, w)
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return nil
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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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return nil
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}
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func getDeploymentHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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handler := "manager: get deployment"
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util.LogHandlerEntry(handler, r)
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name, err := pos(w, r, 2)
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if err != nil {
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return nil
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}
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d, err := c.Manager.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 nil
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}
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util.LogHandlerExitWithJSON(handler, w, d, http.StatusOK)
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return nil
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}
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func createDeploymentHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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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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depReq := getDeploymentRequest(w, r, handler)
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if depReq != nil {
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d, err := c.Manager.CreateDeployment(depReq)
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if err != nil {
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httputil.BadRequest(w, r, err)
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return nil
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}
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util.LogHandlerExitWithJSON(handler, w, d, http.StatusCreated)
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}
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return nil
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}
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func deleteDeploymentHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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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 := pos(w, r, 2)
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if err != nil {
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return err
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}
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d, err := c.Manager.DeleteDeployment(name, true)
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if err != nil {
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return err
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}
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util.LogHandlerExitWithJSON(handler, w, d, http.StatusOK)
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return nil
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}
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func putDeploymentHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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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 := pos(w, r, 2)
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if err != nil {
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return err
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}
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depReq := getDeploymentRequest(w, r, handler)
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if depReq != nil {
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d, err := c.Manager.PutDeployment(name, depReq)
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if err != nil {
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httputil.BadRequest(w, r, err)
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return nil
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}
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util.LogHandlerExitWithJSON(handler, w, d, http.StatusCreated)
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}
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return nil
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}
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// pos gets a path item by position.
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//
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// For example. the path "/foo/bar" has three positions: "" at 0, "foo" at
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// 1, and "bar" at 2.
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//
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// For verb/path combos, position 0 will be the verb: "GET /foo/bar" will have
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// "GET " at position 0.
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func pos(w http.ResponseWriter, r *http.Request, i int) (string, error) {
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parts := strings.Split(r.URL.Path, "/")
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if len(parts) < i-1 {
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return "", fmt.Errorf("No index for %d", i)
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}
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return parts[i], nil
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}
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func getDeploymentRequest(w http.ResponseWriter, r *http.Request, handler string) *common.DeploymentRequest {
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util.LogHandlerEntry(handler, r)
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depReq := &common.DeploymentRequest{}
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if err := httputil.Decode(w, r, depReq); err != nil {
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httputil.BadRequest(w, r, err)
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return nil
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}
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return depReq
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}
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func listManifestsHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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handler := "manager: list manifests"
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util.LogHandlerEntry(handler, r)
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deploymentName, err := pos(w, r, 2)
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if err != nil {
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return err
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}
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m, err := c.Manager.ListManifests(deploymentName)
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if err != nil {
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return err
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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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return nil
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}
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func getManifestHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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handler := "manager: get manifest"
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util.LogHandlerEntry(handler, r)
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deploymentName, err := pos(w, r, 2)
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if err != nil {
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return err
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}
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manifestName, err := pos(w, r, 4)
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if err != nil {
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return err
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}
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m, err := c.Manager.GetManifest(deploymentName, manifestName)
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if err != nil {
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httputil.BadRequest(w, r, err)
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return nil
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}
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util.LogHandlerExitWithJSON(handler, w, m, http.StatusOK)
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return nil
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}
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func expandHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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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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depReq := getDeploymentRequest(w, r, handler)
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if depReq != nil {
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c, err := c.Manager.Expand(depReq)
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if err != nil {
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httputil.BadRequest(w, r, err)
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return nil
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}
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util.LogHandlerExitWithJSON(handler, w, c, http.StatusCreated)
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}
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return nil
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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 listChartsHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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handler := "manager: list charts"
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util.LogHandlerEntry(handler, r)
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types, err := c.Manager.ListCharts()
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if err != nil {
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httputil.BadRequest(w, r, err)
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return nil
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}
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util.LogHandlerExitWithJSON(handler, w, types, http.StatusOK)
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return nil
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}
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func listChartInstancesHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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handler := "manager: list chart instances"
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util.LogHandlerEntry(handler, r)
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chartName, err := pos(w, r, 2)
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if err != nil {
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return err
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}
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instances, err := c.Manager.ListChartInstances(chartName)
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if err != nil {
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httputil.BadRequest(w, r, err)
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return nil
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}
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util.LogHandlerExitWithJSON(handler, w, instances, http.StatusOK)
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return nil
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}
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func getRepoForChartHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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handler := "manager: get repository for chart"
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util.LogHandlerEntry(handler, r)
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chartName, err := pos(w, r, 2)
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if err != nil {
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return err
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}
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repository, err := c.Manager.GetRepoForChart(chartName)
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if err != nil {
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httputil.BadRequest(w, r, err)
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return nil
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}
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util.LogHandlerExitWithJSON(handler, w, repository, http.StatusOK)
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return nil
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}
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func getMetadataForChartHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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handler := "manager: get chart metadata"
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util.LogHandlerEntry(handler, r)
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chartName, err := pos(w, r, 2)
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if err != nil {
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return err
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}
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metadata, err := c.Manager.GetMetadataForChart(chartName)
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if err != nil {
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httputil.BadRequest(w, r, err)
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return nil
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}
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util.LogHandlerExitWithJSON(handler, w, metadata, http.StatusOK)
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return nil
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}
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func getChartHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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handler := "manager: get chart"
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util.LogHandlerEntry(handler, r)
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chartName, err := pos(w, r, 2)
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if err != nil {
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return err
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}
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ch, err := c.Manager.GetChart(chartName)
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if err != nil {
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httputil.BadRequest(w, r, err)
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return nil
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}
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util.LogHandlerExitWithJSON(handler, w, ch, http.StatusOK)
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return nil
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}
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func getCredential(w http.ResponseWriter, r *http.Request, handler string) *repo.Credential {
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util.LogHandlerEntry(handler, r)
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t := &repo.Credential{}
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if err := httputil.Decode(w, r, t); err != nil {
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httputil.BadRequest(w, r, err)
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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 createCredentialHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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handler := "manager: create credential"
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util.LogHandlerEntry(handler, r)
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defer r.Body.Close()
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credentialName, err := pos(w, r, 2)
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if err != nil {
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return err
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}
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cr := getCredential(w, r, handler)
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if cr != nil {
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err = c.Manager.CreateCredential(credentialName, cr)
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if err != nil {
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httputil.BadRequest(w, r, err)
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return nil
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}
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}
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util.LogHandlerExitWithJSON(handler, w, c, http.StatusOK)
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return nil
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}
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func getCredentialHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
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handler := "manager: get credential"
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util.LogHandlerEntry(handler, r)
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credentialName, err := pos(w, r, 2)
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if err != nil {
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return err
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}
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cr, err := c.Manager.GetCredential(credentialName)
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if err != nil {
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httputil.BadRequest(w, r, err)
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return nil
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}
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util.LogHandlerExitWithJSON(handler, w, cr, http.StatusOK)
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return nil
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}
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