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Export StartTestCluster to make it useable for other packages
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| package zk | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "io/ioutil" | ||
| "math/rand" | ||
| "os" | ||
| "path/filepath" | ||
| "time" | ||
| ) | ||
|
|
||
| type TestServer struct { | ||
| Port int | ||
| Path string | ||
| Srv *Server | ||
| } | ||
|
|
||
| type TestCluster struct { | ||
| Path string | ||
| Servers []TestServer | ||
| } | ||
|
|
||
| func StartTestCluster(size int) (*TestCluster, error) { | ||
| tmpPath, err := ioutil.TempDir("", "gozk") | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| success := false | ||
| startPort := int(rand.Int31n(6000) + 10000) | ||
| cluster := &TestCluster{Path: tmpPath} | ||
| defer func() { | ||
| if !success { | ||
| cluster.stop() | ||
| } | ||
| }() | ||
| for serverN := 0; serverN < size; serverN++ { | ||
| srvPath := filepath.Join(tmpPath, fmt.Sprintf("srv%d", serverN)) | ||
| if err := os.Mkdir(srvPath, 0700); err != nil { | ||
| return nil, err | ||
| } | ||
| port := startPort + serverN*3 | ||
| cfg := ServerConfig{ | ||
| ClientPort: port, | ||
| DataDir: srvPath, | ||
| } | ||
| for i := 0; i < size; i++ { | ||
| cfg.Servers = append(cfg.Servers, ServerConfigServer{ | ||
| Id: i + 1, | ||
| Host: "127.0.0.1", | ||
| PeerPort: port + 1, | ||
| LeaderElectionPort: port + 2, | ||
| }) | ||
| } | ||
| cfgPath := filepath.Join(srvPath, "zoo.cfg") | ||
| fi, err := os.Create(cfgPath) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| err = cfg.Marshall(fi) | ||
| fi.Close() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| fi, err = os.Create(filepath.Join(srvPath, "myid")) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| _, err = fmt.Fprintf(fi, "%d\n", serverN+1) | ||
| fi.Close() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| srv := &Server{ | ||
| ConfigPath: cfgPath, | ||
| } | ||
| if err := srv.Start(); err != nil { | ||
| return nil, err | ||
| } | ||
| cluster.Servers = append(cluster.Servers, TestServer{ | ||
| Path: srvPath, | ||
| Port: cfg.ClientPort, | ||
| Srv: srv, | ||
| }) | ||
| } | ||
| success = true | ||
| time.Sleep(time.Second) // Give the server time to become active. Should probably actually attempt to connect to verify. | ||
| return cluster, nil | ||
| } | ||
|
|
||
| func (ts *TestCluster) connect(idx int) (*Conn, error) { | ||
| zk, _, err := Connect([]string{fmt.Sprintf("127.0.0.1:%d", ts.Servers[idx].Port)}, time.Second*15) | ||
| return zk, err | ||
| } | ||
|
|
||
| func (ts *TestCluster) stop() error { | ||
| for _, srv := range ts.Servers { | ||
| srv.Srv.Stop() | ||
| } | ||
| defer os.RemoveAll(ts.Path) | ||
| return nil | ||
| } |
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