*: bump to v2.3.2

Fixes #5046

README.md

@@ -137,12 +137,15 @@ curl -L http://127.0.0.1:2379/version
 
 The `v2` API responses should not change after the 2.0.0 release but new features will be added over time.
 
-#### 32-bit systems
+#### 32-bit and other unsupported systems
 
 etcd has known issues on 32-bit systems due to a bug in the Go runtime. See #[358][358] for more information.
 
-To avoid inadvertantly producing an unstable etcd server, 32-bit builds emit an `etcd` that prints
-a warning message and immediately exits.
+To avoid inadvertantly running a possibly unstable etcd server, `etcd` on unsupported architectures will print
+a warning message and immediately exit if the environment variable `ETCD_UNSUPPORTED_ARCH` is not set to
+the target architecture.
+
+Currently only the amd64 architecture is officially supported by `etcd`.
 
 [358]: https://github.com/coreos/etcd/issues/358
 

client/auth_user.go

@@ -36,6 +36,12 @@ type User struct {
 	Revoke   []string `json:"revoke,omitempty"`
 }
 
+// userListEntry is the user representation given by the server for ListUsers
+type userListEntry struct {
+	User  string `json:"user"`
+	Roles []Role `json:"roles"`
+}
+
 type UserRoles struct {
 	User  string `json:"user"`
 	Roles []Role `json:"roles"`
@@ -198,7 +204,7 @@ func (u *httpAuthUserAPI) ListUsers(ctx context.Context) ([]string, error) {
 	}
 
 	var userList struct {
-		Users []User `json:"users"`
+		Users []userListEntry `json:"users"`
 	}
 
 	if err = json.Unmarshal(body, &userList); err != nil {

client/client.go

@@ -342,7 +342,9 @@ func (c *httpClusterClient) Do(ctx context.Context, act httpAction) (*http.Respo
 		resp, body, err = hc.Do(ctx, action)
 		if err != nil {
 			cerr.Errors = append(cerr.Errors, err)
-			// mask previous errors with context error, which is controlled by user
+			if err == ctx.Err() {
+				return nil, nil, ctx.Err()
+			}
 			if err == context.Canceled || err == context.DeadlineExceeded {
 				return nil, nil, err
 			}

client/client_test.go

@@ -295,7 +295,7 @@ func TestSimpleHTTPClientDoHeaderTimeout(t *testing.T) {
 			t.Fatalf("expected non-nil error, got nil")
 		}
 	case <-time.After(time.Second):
-		t.Fatalf("unexpected timeout when waitting for the test to finish")
+		t.Fatalf("unexpected timeout when waiting for the test to finish")
 	}
 }
 
@@ -444,7 +444,51 @@ func TestHTTPClusterClientDoDeadlineExceedContext(t *testing.T) {
 			t.Errorf("err = %+v, want %+v", err, context.DeadlineExceeded)
 		}
 	case <-time.After(time.Second):
-		t.Fatalf("unexpected timeout when waitting for request to deadline exceed")
+		t.Fatalf("unexpected timeout when waiting for request to deadline exceed")
+	}
+}
+
+type fakeCancelContext struct{}
+
+var fakeCancelContextError = errors.New("fake context canceled")
+
+func (f fakeCancelContext) Deadline() (time.Time, bool) { return time.Time{}, false }
+func (f fakeCancelContext) Done() <-chan struct{} {
+	d := make(chan struct{}, 1)
+	d <- struct{}{}
+	return d
+}
+func (f fakeCancelContext) Err() error                        { return fakeCancelContextError }
+func (f fakeCancelContext) Value(key interface{}) interface{} { return 1 }
+
+func withTimeout(parent context.Context, timeout time.Duration) (context.Context, context.CancelFunc) {
+	return parent, func() { parent = nil }
+}
+
+func TestHTTPClusterClientDoCanceledContext(t *testing.T) {
+	fakeURL := url.URL{}
+	tr := newFakeTransport()
+	tr.finishCancel <- struct{}{}
+	c := &httpClusterClient{
+		clientFactory: newHTTPClientFactory(tr, DefaultCheckRedirect, 0),
+		endpoints:     []url.URL{fakeURL},
+	}
+
+	errc := make(chan error)
+	go func() {
+		ctx, cancel := withTimeout(fakeCancelContext{}, time.Millisecond)
+		cancel()
+		_, _, err := c.Do(ctx, &fakeAction{})
+		errc <- err
+	}()
+
+	select {
+	case err := <-errc:
+		if err != fakeCancelContextError {
+			t.Errorf("err = %+v, want %+v", err, fakeCancelContextError)
+		}
+	case <-time.After(time.Second):
+		t.Fatalf("unexpected timeout when waiting for request to fake context canceled")
 	}
 }
 

e2e/etcdctl_test.go

@@ -185,9 +185,18 @@ func testCtlV2GetRoleUser(t *testing.T, cfg *etcdProcessClusterConfig) {
 	if err := etcdctlUserGet(epc, "username"); err != nil {
 		t.Fatalf("failed to get user (%v)", err)
 	}
+	// ensure double grant gives an error; was crashing in 2.3.1
+	regrantArgs := etcdctlPrefixArgs(epc)
+	regrantArgs = append(regrantArgs, "user", "grant", "--roles", "foo", "username")
+	if err := spawnWithExpect(regrantArgs, "duplicate"); err != nil {
+		t.Fatalf("missing duplicate error on double grant role (%v)", err)
+	}
 }
 
-func TestCtlV2UserList(t *testing.T) {
+func TestCtlV2UserListUsername(t *testing.T) { testCtlV2UserList(t, "username") }
+func TestCtlV2UserListRoot(t *testing.T)     { testCtlV2UserList(t, "root") }
+
+func testCtlV2UserList(t *testing.T, username string) {
 	defer testutil.AfterTest(t)
 
 	epc := setupEtcdctlTest(t, &configWithProxy, false)
@@ -197,10 +206,10 @@ func TestCtlV2UserList(t *testing.T) {
 		}
 	}()
 
-	if err := etcdctlUserAdd(epc, "username", "password"); err != nil {
+	if err := etcdctlUserAdd(epc, username, "password"); err != nil {
 		t.Fatalf("failed to add user (%v)", err)
 	}
-	if err := etcdctlUserList(epc, "username"); err != nil {
+	if err := etcdctlUserList(epc, username); err != nil {
 		t.Fatalf("failed to list users (%v)", err)
 	}
 }

etcdctl/command/user_commands.go

@@ -17,8 +17,6 @@ package command
 import (
 	"fmt"
 	"os"
-	"reflect"
-	"sort"
 	"strings"
 
 	"github.com/coreos/etcd/Godeps/_workspace/src/github.com/bgentry/speakeasy"
@@ -195,21 +193,12 @@ func userGrantRevoke(c *cli.Context, grant bool) {
 		os.Exit(1)
 	}
 
-	var newUser *client.User
 	if grant {
-		newUser, err = api.GrantUser(ctx, user, roles)
+		_, err = api.GrantUser(ctx, user, roles)
 	} else {
-		newUser, err = api.RevokeUser(ctx, user, roles)
-	}
-	sort.Strings(newUser.Roles)
-	sort.Strings(currentUser.Roles)
-	if reflect.DeepEqual(newUser.Roles, currentUser.Roles) {
-		if grant {
-			fmt.Printf("User unchanged; roles already granted")
-		} else {
-			fmt.Printf("User unchanged; roles already revoked")
-		}
+		_, err = api.RevokeUser(ctx, user, roles)
 	}
+
 	if err != nil {
 		fmt.Fprintln(os.Stderr, err.Error())
 		os.Exit(1)

etcdmain/etcd.go

@@ -12,9 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// TODO: support arm64
-// +build amd64
-
 package etcdmain
 
 import (
@@ -79,6 +76,8 @@ var (
 )
 
 func Main() {
+	checkSupportArch()
+
 	cfg := NewConfig()
 	err := cfg.Parse(os.Args[1:])
 	if err != nil {
@@ -554,3 +553,16 @@ func setupLogging(cfg *config) {
 		repoLog.SetLogLevel(settings)
 	}
 }
+
+func checkSupportArch() {
+	// TODO qualify arm64
+	if runtime.GOARCH == "amd64" {
+		return
+	}
+	if env, ok := os.LookupEnv("ETCD_UNSUPPORTED_ARCH"); ok && env == runtime.GOARCH {
+		plog.Warningf("running etcd on unsupported architecture %q since ETCD_UNSUPPORTED_ARCH is set", env)
+		return
+	}
+	plog.Errorf("etcd on unsupported platform without ETCD_UNSUPPORTED_ARCH=%s set.", runtime.GOARCH)
+	os.Exit(1)
+}

etcdmain/etcd_phony.go

@@ -1,31 +0,0 @@
-// Copyright 2016 CoreOS, Inc.
-//
-// 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.
-
-// +build !amd64
-
-package etcdmain
-
-import (
-	"fmt"
-	"os"
-
-	"github.com/coreos/etcd/Godeps/_workspace/src/github.com/coreos/pkg/capnslog"
-)
-
-var plog = capnslog.NewPackageLogger("github.com/coreos/etcd", "etcdmain")
-
-func Main() {
-	fmt.Println("unsupported architecture; unreliable, unstable")
-	os.Exit(-1)
-}

etcdserver/cluster_util.go

@@ -71,6 +71,7 @@ func getClusterFromRemotePeers(urls []string, timeout time.Duration, logerr bool
 			continue
 		}
 		b, err := ioutil.ReadAll(resp.Body)
+		resp.Body.Close()
 		if err != nil {
 			if logerr {
 				plog.Warningf("could not read the body of cluster response: %v", err)

rafthttp/peer.go

@@ -142,11 +142,23 @@ func startPeer(transport *Transport, urls types.URLs, local, to, cid types.ID, r
 	go func() {
 		for {
 			select {
-			case mm := <-p.propc:
+			case mm := <-p.recvc:
 				if err := r.Process(ctx, mm); err != nil {
 					plog.Warningf("failed to process raft message (%v)", err)
 				}
-			case mm := <-p.recvc:
+			case <-p.stopc:
+				return
+			}
+		}
+	}()
+
+	// r.Process might block for processing proposal when there is no leader.
+	// Thus propc must be put into a separate routine with recvc to avoid blocking
+	// processing other raft messages.
+	go func() {
+		for {
+			select {
+			case mm := <-p.propc:
 				if err := r.Process(ctx, mm); err != nil {
 					plog.Warningf("failed to process raft message (%v)", err)
 				}

version/version.go

@@ -29,7 +29,7 @@ import (
 var (
 	// MinClusterVersion is the min cluster version this etcd binary is compatible with.
 	MinClusterVersion = "2.2.0"
-	Version           = "2.3.0"
+	Version           = "2.3.2"
 
 	// Git SHA Value will be set during build
 	GitSHA = "Not provided (use ./build instead of go build)"