476 lines
12 KiB
Go
476 lines
12 KiB
Go
package consul
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import (
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"errors"
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"fmt"
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"io/ioutil"
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"net"
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"os"
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"testing"
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"time"
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"github.com/hashicorp/consul/testutil"
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)
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var nextPort = 15000
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func getPort() int {
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p := nextPort
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nextPort++
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return p
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}
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func tmpDir(t *testing.T) string {
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dir, err := ioutil.TempDir("", "consul")
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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return dir
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}
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func configureTLS(config *Config) {
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config.CAFile = "../test/ca/root.cer"
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config.CertFile = "../test/key/ourdomain.cer"
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config.KeyFile = "../test/key/ourdomain.key"
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}
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func testServerConfig(t *testing.T, NodeName string) (string, *Config) {
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dir := tmpDir(t)
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config := DefaultConfig()
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config.NodeName = NodeName
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config.Bootstrap = true
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config.Datacenter = "dc1"
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config.DataDir = dir
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config.RPCAddr = &net.TCPAddr{
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IP: []byte{127, 0, 0, 1},
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Port: getPort(),
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}
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config.SerfLANConfig.MemberlistConfig.BindAddr = "127.0.0.1"
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config.SerfLANConfig.MemberlistConfig.BindPort = getPort()
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config.SerfLANConfig.MemberlistConfig.SuspicionMult = 2
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config.SerfLANConfig.MemberlistConfig.ProbeTimeout = 50 * time.Millisecond
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config.SerfLANConfig.MemberlistConfig.ProbeInterval = 100 * time.Millisecond
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config.SerfLANConfig.MemberlistConfig.GossipInterval = 100 * time.Millisecond
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config.SerfWANConfig.MemberlistConfig.BindAddr = "127.0.0.1"
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config.SerfWANConfig.MemberlistConfig.BindPort = getPort()
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config.SerfWANConfig.MemberlistConfig.SuspicionMult = 2
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config.SerfWANConfig.MemberlistConfig.ProbeTimeout = 50 * time.Millisecond
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config.SerfWANConfig.MemberlistConfig.ProbeInterval = 100 * time.Millisecond
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config.SerfWANConfig.MemberlistConfig.GossipInterval = 100 * time.Millisecond
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config.RaftConfig.LeaderLeaseTimeout = 20 * time.Millisecond
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config.RaftConfig.HeartbeatTimeout = 40 * time.Millisecond
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config.RaftConfig.ElectionTimeout = 40 * time.Millisecond
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config.ReconcileInterval = 100 * time.Millisecond
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return dir, config
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}
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func testServer(t *testing.T) (string, *Server) {
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return testServerDC(t, "dc1")
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}
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func testServerDC(t *testing.T, dc string) (string, *Server) {
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return testServerDCBootstrap(t, dc, true)
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}
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func testServerDCBootstrap(t *testing.T, dc string, bootstrap bool) (string, *Server) {
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name := fmt.Sprintf("Node %d", getPort())
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dir, config := testServerConfig(t, name)
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config.Datacenter = dc
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config.Bootstrap = bootstrap
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server, err := NewServer(config)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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return dir, server
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}
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func testServerDCExpect(t *testing.T, dc string, expect int) (string, *Server) {
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name := fmt.Sprintf("Node %d", getPort())
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dir, config := testServerConfig(t, name)
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config.Datacenter = dc
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config.Bootstrap = false
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config.BootstrapExpect = expect
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server, err := NewServer(config)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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return dir, server
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}
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func testServerWithConfig(t *testing.T, cb func(c *Config)) (string, *Server) {
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name := fmt.Sprintf("Node %d", getPort())
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dir, config := testServerConfig(t, name)
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cb(config)
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server, err := NewServer(config)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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return dir, server
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}
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func TestServer_StartStop(t *testing.T) {
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dir := tmpDir(t)
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defer os.RemoveAll(dir)
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config := DefaultConfig()
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config.DataDir = dir
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private, err := GetPrivateIP()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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config.RPCAdvertise = &net.TCPAddr{
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IP: private,
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Port: 8300,
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}
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server, err := NewServer(config)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if err := server.Shutdown(); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Idempotent
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if err := server.Shutdown(); err != nil {
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t.Fatalf("err: %v", err)
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}
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}
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func TestServer_JoinLAN(t *testing.T) {
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dir1, s1 := testServer(t)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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dir2, s2 := testServer(t)
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defer os.RemoveAll(dir2)
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defer s2.Shutdown()
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// Try to join
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addr := fmt.Sprintf("127.0.0.1:%d",
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s1.config.SerfLANConfig.MemberlistConfig.BindPort)
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if _, err := s2.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Check the members
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testutil.WaitForResult(func() (bool, error) {
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return len(s1.LANMembers()) == 2, nil
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}, func(err error) {
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t.Fatalf("bad len")
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})
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testutil.WaitForResult(func() (bool, error) {
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return len(s2.LANMembers()) == 2, nil
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}, func(err error) {
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t.Fatalf("bad len")
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})
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}
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func TestServer_JoinWAN(t *testing.T) {
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dir1, s1 := testServer(t)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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dir2, s2 := testServerDC(t, "dc2")
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defer os.RemoveAll(dir2)
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defer s2.Shutdown()
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// Try to join
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addr := fmt.Sprintf("127.0.0.1:%d",
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s1.config.SerfWANConfig.MemberlistConfig.BindPort)
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if _, err := s2.JoinWAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Check the members
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testutil.WaitForResult(func() (bool, error) {
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return len(s1.WANMembers()) == 2, nil
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}, func(err error) {
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t.Fatalf("bad len")
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})
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testutil.WaitForResult(func() (bool, error) {
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return len(s2.WANMembers()) == 2, nil
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}, func(err error) {
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t.Fatalf("bad len")
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})
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// Check the remoteConsuls has both
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if len(s1.remoteConsuls) != 2 {
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t.Fatalf("remote consul missing")
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}
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testutil.WaitForResult(func() (bool, error) {
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return len(s2.remoteConsuls) == 2, nil
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}, func(err error) {
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t.Fatalf("remote consul missing")
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})
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}
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func TestServer_Leave(t *testing.T) {
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dir1, s1 := testServer(t)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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// Second server not in bootstrap mode
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dir2, s2 := testServerDCBootstrap(t, "dc1", false)
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defer os.RemoveAll(dir2)
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defer s2.Shutdown()
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// Try to join
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addr := fmt.Sprintf("127.0.0.1:%d",
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s1.config.SerfLANConfig.MemberlistConfig.BindPort)
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if _, err := s2.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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var p1 []net.Addr
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var p2 []net.Addr
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testutil.WaitForResult(func() (bool, error) {
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p1, _ = s1.raftPeers.Peers()
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return len(p1) == 2, errors.New(fmt.Sprintf("%v", p1))
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}, func(err error) {
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t.Fatalf("should have 2 peers: %v", err)
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})
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testutil.WaitForResult(func() (bool, error) {
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p2, _ = s2.raftPeers.Peers()
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return len(p2) == 2, errors.New(fmt.Sprintf("%v", p1))
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}, func(err error) {
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t.Fatalf("should have 2 peers: %v", err)
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})
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// Issue a leave
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if err := s2.Leave(); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Should lose a peer
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p1, _ = s1.raftPeers.Peers()
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if len(p1) != 1 {
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t.Fatalf("should have 1 peer: %v", p1)
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}
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}
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func TestServer_RPC(t *testing.T) {
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dir1, s1 := testServer(t)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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var out struct{}
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if err := s1.RPC("Status.Ping", struct{}{}, &out); err != nil {
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t.Fatalf("err: %v", err)
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}
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}
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func TestServer_JoinLAN_TLS(t *testing.T) {
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dir1, conf1 := testServerConfig(t, "a.testco.internal")
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conf1.VerifyIncoming = true
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conf1.VerifyOutgoing = true
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configureTLS(conf1)
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s1, err := NewServer(conf1)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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dir2, conf2 := testServerConfig(t, "b.testco.internal")
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conf2.Bootstrap = false
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conf2.VerifyIncoming = true
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conf2.VerifyOutgoing = true
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configureTLS(conf2)
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s2, err := NewServer(conf2)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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defer os.RemoveAll(dir2)
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defer s2.Shutdown()
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// Try to join
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addr := fmt.Sprintf("127.0.0.1:%d",
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s1.config.SerfLANConfig.MemberlistConfig.BindPort)
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if _, err := s2.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Check the members
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testutil.WaitForResult(func() (bool, error) {
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return len(s1.LANMembers()) == 2, nil
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}, func(err error) {
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t.Fatalf("bad len")
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})
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testutil.WaitForResult(func() (bool, error) {
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return len(s2.LANMembers()) == 2, nil
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}, func(err error) {
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t.Fatalf("bad len")
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})
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// Verify Raft has established a peer
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testutil.WaitForResult(func() (bool, error) {
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return s1.Stats()["raft"]["num_peers"] == "1", nil
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}, func(err error) {
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t.Fatalf("no peer established")
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})
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testutil.WaitForResult(func() (bool, error) {
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return s2.Stats()["raft"]["num_peers"] == "1", nil
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}, func(err error) {
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t.Fatalf("no peer established")
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})
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}
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func TestServer_Expect(t *testing.T) {
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// all test servers should be in expect=3 mode
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dir1, s1 := testServerDCExpect(t, "dc1", 3)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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dir2, s2 := testServerDCExpect(t, "dc1", 3)
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defer os.RemoveAll(dir2)
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defer s2.Shutdown()
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dir3, s3 := testServerDCExpect(t, "dc1", 0)
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defer os.RemoveAll(dir3)
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defer s3.Shutdown()
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// Try to join
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addr := fmt.Sprintf("127.0.0.1:%d",
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s1.config.SerfLANConfig.MemberlistConfig.BindPort)
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if _, err := s2.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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var p1 []net.Addr
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var p2 []net.Addr
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// should have no peers yet
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testutil.WaitForResult(func() (bool, error) {
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p1, _ = s1.raftPeers.Peers()
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return len(p1) == 0, errors.New(fmt.Sprintf("%v", p1))
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}, func(err error) {
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t.Fatalf("should have 0 peers: %v", err)
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})
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testutil.WaitForResult(func() (bool, error) {
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p2, _ = s2.raftPeers.Peers()
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return len(p2) == 0, errors.New(fmt.Sprintf("%v", p2))
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}, func(err error) {
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t.Fatalf("should have 0 peers: %v", err)
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})
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// join the third node
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if _, err := s3.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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var p3 []net.Addr
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// should now have all three peers
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testutil.WaitForResult(func() (bool, error) {
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p1, _ = s1.raftPeers.Peers()
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return len(p1) == 3, errors.New(fmt.Sprintf("%v", p1))
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}, func(err error) {
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t.Fatalf("should have 3 peers: %v", err)
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})
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testutil.WaitForResult(func() (bool, error) {
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p2, _ = s2.raftPeers.Peers()
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return len(p2) == 3, errors.New(fmt.Sprintf("%v", p2))
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}, func(err error) {
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t.Fatalf("should have 3 peers: %v", err)
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})
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testutil.WaitForResult(func() (bool, error) {
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p3, _ = s3.raftPeers.Peers()
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return len(p3) == 3, errors.New(fmt.Sprintf("%v", p3))
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}, func(err error) {
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t.Fatalf("should have 3 peers: %v", err)
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})
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// check if there is one leader now
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testutil.WaitForLeader(t, s1.RPC, "dc1")
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}
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func TestServer_BadExpect(t *testing.T) {
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// this one is in expect=3 mode
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dir1, s1 := testServerDCExpect(t, "dc1", 3)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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// this one is in expect=2 mode
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dir2, s2 := testServerDCExpect(t, "dc1", 2)
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defer os.RemoveAll(dir2)
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defer s2.Shutdown()
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// and this one is in expect=3 mode
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dir3, s3 := testServerDCExpect(t, "dc1", 3)
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defer os.RemoveAll(dir3)
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defer s3.Shutdown()
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// Try to join
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addr := fmt.Sprintf("127.0.0.1:%d",
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s1.config.SerfLANConfig.MemberlistConfig.BindPort)
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if _, err := s2.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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var p1 []net.Addr
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var p2 []net.Addr
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// should have no peers yet
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testutil.WaitForResult(func() (bool, error) {
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p1, _ = s1.raftPeers.Peers()
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return len(p1) == 0, errors.New(fmt.Sprintf("%v", p1))
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}, func(err error) {
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t.Fatalf("should have 0 peers: %v", err)
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})
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testutil.WaitForResult(func() (bool, error) {
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p2, _ = s2.raftPeers.Peers()
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return len(p2) == 0, errors.New(fmt.Sprintf("%v", p2))
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}, func(err error) {
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t.Fatalf("should have 0 peers: %v", err)
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})
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// join the third node
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if _, err := s3.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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var p3 []net.Addr
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// should still have no peers (because s2 is in expect=2 mode)
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testutil.WaitForResult(func() (bool, error) {
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p1, _ = s1.raftPeers.Peers()
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return len(p1) == 0, errors.New(fmt.Sprintf("%v", p1))
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}, func(err error) {
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t.Fatalf("should have 0 peers: %v", err)
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})
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testutil.WaitForResult(func() (bool, error) {
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p2, _ = s2.raftPeers.Peers()
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return len(p2) == 0, errors.New(fmt.Sprintf("%v", p2))
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}, func(err error) {
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t.Fatalf("should have 0 peers: %v", err)
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})
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testutil.WaitForResult(func() (bool, error) {
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p3, _ = s3.raftPeers.Peers()
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return len(p3) == 0, errors.New(fmt.Sprintf("%v", p3))
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}, func(err error) {
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t.Fatalf("should have 0 peers: %v", err)
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})
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}
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