dls: password support

cmd/dkl-dir2config/render-context.go

@@ -160,6 +160,10 @@ func (ctx *renderContext) templateFuncs(ctxMap map[string]interface{}) map[strin
 	}
 
 	return map[string]interface{}{
+		"password": func(name string) (s string) {
+			return fmt.Sprintf("{{ password %q %q }}", cluster, name)
+		},
+
 		"token": func(name string) (s string) {
 			return fmt.Sprintf("{{ token %q %q }}", cluster, name)
 		},

cmd/dkl-local-server/render-context.go

@@ -5,6 +5,7 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"encoding/json"
+	"fmt"
 	"io"
 	"log"
 	"net/http"
@@ -135,6 +136,14 @@ func (ctx *renderContext) templateFuncs() map[string]interface{} {
 	}
 
 	return map[string]interface{}{
+		"password": func(cluster, name string) (password string, err error) {
+			password = secretData.Password(cluster, name)
+			if len(password) == 0 {
+				err = fmt.Errorf("password %q not defined for cluster %q", name, cluster)
+			}
+			return
+		},
+
 		"token": func(cluster, name string) (s string, err error) {
 			return secretData.Token(cluster, name)
 		},

cmd/dkl-local-server/secrets.go

@@ -10,6 +10,7 @@ import (
 	"net"
 	"os"
 	"path/filepath"
+	"sort"
 	"sync"
 
 	"github.com/cloudflare/cfssl/config"
@@ -38,6 +39,7 @@ type SecretData struct {
 type ClusterSecrets struct {
 	CAs       map[string]*CA
 	Tokens    map[string]string
+	Passwords map[string]string
 }
 
 type CA struct {
@@ -101,6 +103,14 @@ func (sd *SecretData) Save() error {
 	return ioutil.WriteFile(secretDataPath(), ba, 0600)
 }
 
+func newClusterSecrets() *ClusterSecrets {
+	return &ClusterSecrets{
+		CAs:       make(map[string]*CA),
+		Tokens:    make(map[string]string),
+		Passwords: make(map[string]string),
+	}
+}
+
 func (sd *SecretData) cluster(name string) (cs *ClusterSecrets) {
 	cs, ok := sd.clusters[name]
 	if ok {
@@ -112,15 +122,47 @@ func (sd *SecretData) cluster(name string) (cs *ClusterSecrets) {
 
 	log.Info("secret-data: new cluster: ", name)
 
-	cs = &ClusterSecrets{
-		CAs:    make(map[string]*CA),
-		Tokens: make(map[string]string),
-	}
+	cs = newClusterSecrets()
 	sd.clusters[name] = cs
 	sd.changed = true
 	return
 }
 
+func (sd *SecretData) Passwords(cluster string) (passwords []string) {
+	cs := sd.cluster(cluster)
+
+	passwords = make([]string, 0, len(cs.Passwords))
+	for name := range cs.Passwords {
+		passwords = append(passwords, name)
+	}
+
+	sort.Strings(passwords)
+
+	return
+}
+
+func (sd *SecretData) Password(cluster, name string) (password string) {
+	cs := sd.cluster(cluster)
+
+	if cs.Passwords == nil {
+		cs.Passwords = make(map[string]string)
+	}
+
+	password = cs.Passwords[name]
+	return
+}
+
+func (sd *SecretData) SetPassword(cluster, name, password string) {
+	cs := sd.cluster(cluster)
+
+	if cs.Passwords == nil {
+		cs.Passwords = make(map[string]string)
+	}
+
+	cs.Passwords[name] = password
+	sd.changed = true
+}
+
 func (sd *SecretData) Token(cluster, name string) (token string, err error) {
 	cs := sd.cluster(cluster)
 

cmd/dkl-local-server/ws-clusters.go

@@ -61,3 +61,42 @@ func wsClusterAddons(req *restful.Request, resp *restful.Response) {
 
 	resp.Write([]byte(cluster.Addons))
 }
+
+func wsClusterPasswords(req *restful.Request, resp *restful.Response) {
+	cluster := wsReadCluster(req, resp)
+	if cluster == nil {
+		return
+	}
+
+	resp.WriteEntity(secretData.Passwords(cluster.Name))
+}
+func wsClusterPassword(req *restful.Request, resp *restful.Response) {
+	cluster := wsReadCluster(req, resp)
+	if cluster == nil {
+		return
+	}
+
+	name := req.PathParameter("password-name")
+
+	resp.WriteEntity(secretData.Password(cluster.Name, name))
+}
+func wsClusterSetPassword(req *restful.Request, resp *restful.Response) {
+	cluster := wsReadCluster(req, resp)
+	if cluster == nil {
+		return
+	}
+
+	name := req.PathParameter("password-name")
+
+	var password string
+	if err := req.ReadEntity(&password); err != nil {
+		wsError(resp, err) // FIXME this is a BadRequest
+		return
+	}
+
+	secretData.SetPassword(cluster.Name, name, password)
+
+	if err := secretData.Save(); err != nil {
+		wsError(resp, err)
+	}
+}

cmd/dkl-local-server/ws.go

@@ -31,6 +31,13 @@ func buildWS() *restful.WebService {
 		Returns(http.StatusOK, "OK", nil).
 		Returns(http.StatusNotFound, "The cluster does not exists or does not have addons defined", nil))
 
+	ws.Route(ws.GET("/clusters/{cluster-name}/passwords").Filter(adminAuth).To(wsClusterPasswords).
+		Doc("List cluster's passwords"))
+	ws.Route(ws.GET("/clusters/{cluster-name}/passwords/{password-name}").Filter(adminAuth).To(wsClusterPassword).
+		Doc("Get cluster's password"))
+	ws.Route(ws.PUT("/clusters/{cluster-name}/passwords/{password-name}").Filter(adminAuth).To(wsClusterSetPassword).
+		Doc("Set cluster's password"))
+
 	// hosts API
 	ws.Route(ws.GET("/hosts").Filter(hostsAuth).To(wsListHosts).
 		Doc("List hosts"))