mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
6b487fb199
If etcdctl accesses the cluster before all members are published, it will get an "unsupported protocol scheme" error. To fix, wait for both the capabilities and published message. Fixes #5824
507 lines
12 KiB
Go
507 lines
12 KiB
Go
// Copyright 2016 The etcd Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package e2e
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import (
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"fmt"
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"io/ioutil"
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"net/url"
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"os"
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"strings"
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"github.com/coreos/etcd/etcdserver"
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"github.com/coreos/etcd/pkg/expect"
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"github.com/coreos/etcd/pkg/fileutil"
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)
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const (
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etcdProcessBasePort = 20000
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certPath = "../integration/fixtures/server.crt"
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privateKeyPath = "../integration/fixtures/server.key.insecure"
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caPath = "../integration/fixtures/ca.crt"
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)
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type clientConnType int
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const (
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clientNonTLS clientConnType = iota
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clientTLS
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clientTLSAndNonTLS
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)
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var (
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configNoTLS = etcdProcessClusterConfig{
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clusterSize: 3,
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proxySize: 0,
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initialToken: "new",
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}
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configAutoTLS = etcdProcessClusterConfig{
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clusterSize: 3,
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isPeerTLS: true,
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isPeerAutoTLS: true,
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initialToken: "new",
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}
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configTLS = etcdProcessClusterConfig{
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clusterSize: 3,
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proxySize: 0,
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clientTLS: clientTLS,
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isPeerTLS: true,
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initialToken: "new",
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}
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configClientTLS = etcdProcessClusterConfig{
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clusterSize: 3,
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proxySize: 0,
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clientTLS: clientTLS,
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initialToken: "new",
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}
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configClientBoth = etcdProcessClusterConfig{
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clusterSize: 1,
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proxySize: 0,
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clientTLS: clientTLSAndNonTLS,
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initialToken: "new",
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}
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configClientAutoTLS = etcdProcessClusterConfig{
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clusterSize: 1,
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proxySize: 0,
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isClientAutoTLS: true,
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clientTLS: clientTLS,
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initialToken: "new",
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}
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configPeerTLS = etcdProcessClusterConfig{
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clusterSize: 3,
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proxySize: 0,
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isPeerTLS: true,
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initialToken: "new",
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}
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configWithProxy = etcdProcessClusterConfig{
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clusterSize: 3,
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proxySize: 1,
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initialToken: "new",
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}
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configWithProxyTLS = etcdProcessClusterConfig{
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clusterSize: 3,
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proxySize: 1,
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clientTLS: clientTLS,
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isPeerTLS: true,
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initialToken: "new",
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}
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configWithProxyPeerTLS = etcdProcessClusterConfig{
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clusterSize: 3,
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proxySize: 1,
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isPeerTLS: true,
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initialToken: "new",
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}
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)
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func configStandalone(cfg etcdProcessClusterConfig) *etcdProcessClusterConfig {
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ret := cfg
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ret.clusterSize = 1
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return &ret
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}
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type etcdProcessCluster struct {
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cfg *etcdProcessClusterConfig
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procs []*etcdProcess
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}
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type etcdProcess struct {
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cfg *etcdProcessConfig
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proc *expect.ExpectProcess
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donec chan struct{} // closed when Interact() terminates
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}
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type etcdProcessConfig struct {
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execPath string
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args []string
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dataDirPath string
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keepDataDir bool
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acurl string
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// additional url for tls connection when the etcd process
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// serves both http and https
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acurltls string
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acurlHost string
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isProxy bool
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}
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type etcdProcessClusterConfig struct {
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execPath string
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dataDirPath string
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keepDataDir bool
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clusterSize int
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basePort int
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proxySize int
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snapCount int // default is 10000
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clientTLS clientConnType
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isPeerTLS bool
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isPeerAutoTLS bool
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isClientAutoTLS bool
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forceNewCluster bool
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initialToken string
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quotaBackendBytes int64
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}
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// newEtcdProcessCluster launches a new cluster from etcd processes, returning
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// a new etcdProcessCluster once all nodes are ready to accept client requests.
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func newEtcdProcessCluster(cfg *etcdProcessClusterConfig) (*etcdProcessCluster, error) {
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etcdCfgs := cfg.etcdProcessConfigs()
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epc := &etcdProcessCluster{
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cfg: cfg,
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procs: make([]*etcdProcess, cfg.clusterSize+cfg.proxySize),
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}
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// launch etcd processes
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for i := range etcdCfgs {
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proc, err := newEtcdProcess(etcdCfgs[i])
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if err != nil {
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epc.Close()
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return nil, err
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}
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epc.procs[i] = proc
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}
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return epc, epc.Start()
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}
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func newEtcdProcess(cfg *etcdProcessConfig) (*etcdProcess, error) {
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if !fileutil.Exist(cfg.execPath) {
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return nil, fmt.Errorf("could not find etcd binary")
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}
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if !cfg.keepDataDir {
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if err := os.RemoveAll(cfg.dataDirPath); err != nil {
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return nil, err
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}
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}
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child, err := spawnCmd(append([]string{cfg.execPath}, cfg.args...))
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if err != nil {
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return nil, err
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}
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return &etcdProcess{cfg: cfg, proc: child, donec: make(chan struct{})}, nil
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}
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func (cfg *etcdProcessClusterConfig) etcdProcessConfigs() []*etcdProcessConfig {
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if cfg.basePort == 0 {
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cfg.basePort = etcdProcessBasePort
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}
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if cfg.execPath == "" {
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cfg.execPath = "../bin/etcd"
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}
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if cfg.snapCount == 0 {
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cfg.snapCount = etcdserver.DefaultSnapCount
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}
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clientScheme := "http"
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if cfg.clientTLS == clientTLS {
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clientScheme = "https"
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}
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peerScheme := "http"
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if cfg.isPeerTLS {
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peerScheme = "https"
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}
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etcdCfgs := make([]*etcdProcessConfig, cfg.clusterSize+cfg.proxySize)
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initialCluster := make([]string, cfg.clusterSize)
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for i := 0; i < cfg.clusterSize; i++ {
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var curls []string
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var curl, curltls string
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port := cfg.basePort + 2*i
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curlHost := fmt.Sprintf("localhost:%d", port)
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switch cfg.clientTLS {
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case clientNonTLS, clientTLS:
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curl = (&url.URL{Scheme: clientScheme, Host: curlHost}).String()
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curls = []string{curl}
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case clientTLSAndNonTLS:
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curl = (&url.URL{Scheme: "http", Host: curlHost}).String()
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curltls = (&url.URL{Scheme: "https", Host: curlHost}).String()
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curls = []string{curl, curltls}
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}
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purl := url.URL{Scheme: peerScheme, Host: fmt.Sprintf("localhost:%d", port+1)}
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name := fmt.Sprintf("testname%d", i)
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dataDirPath := cfg.dataDirPath
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if cfg.dataDirPath == "" {
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var derr error
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dataDirPath, derr = ioutil.TempDir("", name+".etcd")
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if derr != nil {
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panic("could not get tempdir for datadir")
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}
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}
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initialCluster[i] = fmt.Sprintf("%s=%s", name, purl.String())
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args := []string{
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"--name", name,
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"--listen-client-urls", strings.Join(curls, ","),
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"--advertise-client-urls", strings.Join(curls, ","),
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"--listen-peer-urls", purl.String(),
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"--initial-advertise-peer-urls", purl.String(),
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"--initial-cluster-token", cfg.initialToken,
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"--data-dir", dataDirPath,
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"--snapshot-count", fmt.Sprintf("%d", cfg.snapCount),
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}
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if cfg.forceNewCluster {
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args = append(args, "--force-new-cluster")
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}
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if cfg.quotaBackendBytes > 0 {
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args = append(args,
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"--quota-backend-bytes", fmt.Sprintf("%d", cfg.quotaBackendBytes),
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)
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}
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args = append(args, cfg.tlsArgs()...)
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etcdCfgs[i] = &etcdProcessConfig{
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execPath: cfg.execPath,
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args: args,
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dataDirPath: dataDirPath,
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keepDataDir: cfg.keepDataDir,
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acurl: curl,
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acurltls: curltls,
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acurlHost: curlHost,
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}
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}
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for i := 0; i < cfg.proxySize; i++ {
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port := cfg.basePort + 2*cfg.clusterSize + i + 1
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curlHost := fmt.Sprintf("localhost:%d", port)
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curl := url.URL{Scheme: clientScheme, Host: curlHost}
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name := fmt.Sprintf("testname-proxy%d", i)
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dataDirPath, derr := ioutil.TempDir("", name+".etcd")
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if derr != nil {
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panic("could not get tempdir for datadir")
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}
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args := []string{
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"--name", name,
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"--proxy", "on",
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"--listen-client-urls", curl.String(),
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"--data-dir", dataDirPath,
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}
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args = append(args, cfg.tlsArgs()...)
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etcdCfgs[cfg.clusterSize+i] = &etcdProcessConfig{
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execPath: cfg.execPath,
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args: args,
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dataDirPath: dataDirPath,
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keepDataDir: cfg.keepDataDir,
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acurl: curl.String(),
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acurlHost: curlHost,
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isProxy: true,
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}
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}
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initialClusterArgs := []string{"--initial-cluster", strings.Join(initialCluster, ",")}
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for i := range etcdCfgs {
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etcdCfgs[i].args = append(etcdCfgs[i].args, initialClusterArgs...)
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}
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return etcdCfgs
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}
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func (cfg *etcdProcessClusterConfig) tlsArgs() (args []string) {
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if cfg.clientTLS != clientNonTLS {
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if cfg.isClientAutoTLS {
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args = append(args, "--auto-tls=true")
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} else {
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tlsClientArgs := []string{
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"--cert-file", certPath,
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"--key-file", privateKeyPath,
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"--ca-file", caPath,
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}
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args = append(args, tlsClientArgs...)
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}
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}
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if cfg.isPeerTLS {
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if cfg.isPeerAutoTLS {
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args = append(args, "--peer-auto-tls=true")
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} else {
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tlsPeerArgs := []string{
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"--peer-cert-file", certPath,
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"--peer-key-file", privateKeyPath,
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"--peer-ca-file", caPath,
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}
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args = append(args, tlsPeerArgs...)
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}
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}
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return args
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}
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func (epc *etcdProcessCluster) Start() (err error) {
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readyC := make(chan error, epc.cfg.clusterSize+epc.cfg.proxySize)
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for i := range epc.procs {
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go func(n int) { readyC <- epc.procs[n].waitReady() }(i)
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}
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for range epc.procs {
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if err := <-readyC; err != nil {
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epc.Close()
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return err
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}
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}
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return nil
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}
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func (epc *etcdProcessCluster) RestartAll() error {
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for i := range epc.procs {
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proc, err := newEtcdProcess(epc.procs[i].cfg)
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if err != nil {
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epc.Close()
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return err
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}
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epc.procs[i] = proc
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}
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return epc.Start()
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}
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func (epc *etcdProcessCluster) StopAll() (err error) {
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for _, p := range epc.procs {
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if p == nil {
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continue
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}
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if curErr := p.proc.Stop(); curErr != nil {
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if err != nil {
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err = fmt.Errorf("%v; %v", err, curErr)
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} else {
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err = curErr
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}
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}
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<-p.donec
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}
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return err
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}
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func (epc *etcdProcessCluster) Close() error {
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err := epc.StopAll()
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for _, p := range epc.procs {
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os.RemoveAll(p.cfg.dataDirPath)
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}
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return err
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}
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func (ep *etcdProcess) Restart() error {
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newEp, err := newEtcdProcess(ep.cfg)
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if err != nil {
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ep.Stop()
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return err
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}
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*ep = *newEp
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if err = ep.waitReady(); err != nil {
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ep.Stop()
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return err
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}
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return nil
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}
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func (ep *etcdProcess) Stop() error {
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if ep == nil {
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return nil
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}
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if err := ep.proc.Stop(); err != nil {
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return err
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}
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<-ep.donec
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return nil
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}
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func (ep *etcdProcess) waitReady() error {
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readyStrs := []string{"enabled capabilities for version", "published"}
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if ep.cfg.isProxy {
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readyStrs = []string{"httpproxy: endpoints found"}
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}
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c := 0
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matchSet := func(l string) bool {
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for _, s := range readyStrs {
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if strings.Contains(l, s) {
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c++
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break
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}
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}
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return c == len(readyStrs)
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}
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_, err := ep.proc.ExpectFunc(matchSet)
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close(ep.donec)
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return err
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}
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func spawnCmd(args []string) (*expect.ExpectProcess, error) {
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return expect.NewExpect(args[0], args[1:]...)
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}
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func spawnWithExpect(args []string, expected string) error {
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return spawnWithExpects(args, []string{expected}...)
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}
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func spawnWithExpects(args []string, xs ...string) error {
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proc, err := spawnCmd(args)
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if err != nil {
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return err
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}
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// process until either stdout or stderr contains
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// the expected string
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var (
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lines []string
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lineFunc = func(txt string) bool { return true }
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)
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for _, txt := range xs {
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for {
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l, err := proc.ExpectFunc(lineFunc)
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if err != nil {
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return fmt.Errorf("%v (expected %q, got %q)", err, txt, lines)
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}
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lines = append(lines, l)
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if strings.Contains(l, txt) {
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break
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}
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}
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}
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perr := proc.Close()
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if err != nil {
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return err
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}
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if len(xs) == 0 && proc.LineCount() != 0 { // expect no output
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return fmt.Errorf("unexpected output (got lines %q, line count %d)", lines, proc.LineCount())
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}
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return perr
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}
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// proxies returns only the proxy etcdProcess.
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func (epc *etcdProcessCluster) proxies() []*etcdProcess {
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return epc.procs[epc.cfg.clusterSize:]
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}
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func (epc *etcdProcessCluster) backends() []*etcdProcess {
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return epc.procs[:epc.cfg.clusterSize]
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}
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func (epc *etcdProcessCluster) endpoints() []string {
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eps := make([]string, epc.cfg.clusterSize)
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for i, ep := range epc.backends() {
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eps[i] = ep.cfg.acurl
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}
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return eps
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}
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func (epc *etcdProcessCluster) grpcEndpoints() []string {
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eps := make([]string, epc.cfg.clusterSize)
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for i, ep := range epc.backends() {
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eps[i] = ep.cfg.acurlHost
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}
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return eps
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}
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