func TestSetupAgent_RPCUnixSocket_FileExists(t *testing.T) {
conf := nextConfig()
tmpDir, err := ioutil.TempDir("", "consul")
if err != nil {
t.Fatalf("err: %s", err)
}
defer os.RemoveAll(tmpDir)
tmpFile, err := ioutil.TempFile("", "consul")
if err != nil {
t.Fatalf("err: %s", err)
}
defer os.Remove(tmpFile.Name())
socketPath := tmpFile.Name()
conf.DataDir = tmpDir
conf.Server = true
conf.Bootstrap = true
// Set socket address to an existing file.
conf.Addresses.RPC = "unix://" + socketPath
// Custom mode for socket file
conf.UnixSockets.Perms = "0777"
shutdownCh := make(chan struct{})
defer close(shutdownCh)
cmd := &Command{
ShutdownCh: shutdownCh,
Ui: new(cli.MockUi),
}
logWriter := logger.NewLogWriter(512)
logOutput := new(bytes.Buffer)
// Ensure the server is created
if err := cmd.setupAgent(conf, logOutput, logWriter); err != nil {
t.Fatalf("err: %s", err)
}
// Ensure the file was replaced by the socket
fi, err := os.Stat(socketPath)
if err != nil {
t.Fatalf("err: %s", err)
}
if fi.Mode()&os.ModeSocket == 0 {
t.Fatalf("expected socket to replace file")
}
// Ensure permissions were applied to the socket file
if fi.Mode().String() != "Srwxrwxrwx" {
t.Fatalf("bad permissions: %s", fi.Mode())
}
}
func testAgentWithConfig(t *testing.T, cb func(c *agent.Config)) *agentWrapper {
l, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatalf("err: %s", err)
}
lw := logger.NewLogWriter(512)
mult := io.MultiWriter(os.Stderr, lw)
conf := nextConfig()
cb(conf)
dir, err := ioutil.TempDir("", "agent")
if err != nil {
t.Fatalf(fmt.Sprintf("err: %v", err))
}
conf.DataDir = dir
a, err := agent.Create(conf, lw, nil, nil)
if err != nil {
os.RemoveAll(dir)
t.Fatalf(fmt.Sprintf("err: %v", err))
}
rpc := agent.NewAgentRPC(a, l, mult, lw)
conf.Addresses.HTTP = "127.0.0.1"
httpAddr := fmt.Sprintf("127.0.0.1:%d", conf.Ports.HTTP)
http, err := agent.NewHTTPServers(a, conf, os.Stderr)
if err != nil {
os.RemoveAll(dir)
t.Fatalf(fmt.Sprintf("err: %v", err))
}
if http == nil || len(http) == 0 {
os.RemoveAll(dir)
t.Fatalf(fmt.Sprintf("Could not create HTTP server to listen on: %s", httpAddr))
}
return &agentWrapper{
dir: dir,
config: conf,
agent: a,
rpc: rpc,
http: http[0],
addr: l.Addr().String(),
httpAddr: httpAddr,
}
}
func TestAgent_Monitor(t *testing.T) {
logWriter := logger.NewLogWriter(512)
logger := io.MultiWriter(os.Stdout, logWriter)
dir, srv := makeHTTPServerWithConfigLog(t, nil, logger, logWriter)
defer os.RemoveAll(dir)
defer srv.Shutdown()
defer srv.agent.Shutdown()
// Try passing an invalid log level
req, _ := http.NewRequest("GET", "/v1/agent/monitor?loglevel=invalid", nil)
resp := newClosableRecorder()
if _, err := srv.AgentMonitor(resp, req); err != nil {
t.Fatalf("err: %v", err)
}
if resp.Code != 400 {
t.Fatalf("bad: %v", resp.Code)
}
body, _ := ioutil.ReadAll(resp.Body)
if !strings.Contains(string(body), "Unknown log level") {
t.Fatalf("bad: %s", body)
}
// Try to stream logs until we see the expected log line
expected := []byte("raft: Initial configuration (index=1)")
testutil.WaitForResult(func() (bool, error) {
req, _ = http.NewRequest("GET", "/v1/agent/monitor?loglevel=debug", nil)
resp = newClosableRecorder()
done := make(chan struct{})
go func() {
if _, err := srv.AgentMonitor(resp, req); err != nil {
t.Fatalf("err: %s", err)
}
close(done)
}()
resp.Close()
<-done
if bytes.Contains(resp.Body.Bytes(), expected) {
return true, nil
} else {
return false, fmt.Errorf("didn't see expected")
}
}, func(err error) {
t.Fatalf("err: %v", err)
})
}
func testRPCClientWithConfig(t *testing.T, cb func(c *Config)) *rpcParts {
lw := logger.NewLogWriter(512)
mult := io.MultiWriter(os.Stderr, lw)
configTry := 0
RECONF:
configTry += 1
conf := nextConfig()
cb(conf)
rpcAddr, err := conf.ClientListener(conf.Addresses.RPC, conf.Ports.RPC)
if err != nil {
t.Fatalf("err: %s", err)
}
l, err := net.Listen(rpcAddr.Network(), rpcAddr.String())
if err != nil {
if configTry < 3 {
goto RECONF
}
t.Fatalf("err: %s", err)
}
dir, agent := makeAgentLog(t, conf, mult, lw)
rpc := NewAgentRPC(agent, l, mult, lw)
rpcClient, err := NewRPCClient(l.Addr().String())
if err != nil {
t.Fatalf("err: %s", err)
}
return &rpcParts{
dir: dir,
client: rpcClient,
agent: agent,
rpc: rpc,
}
}
func TestHTTPAgent_Monitor(t *testing.T) {
logWriter := logger.NewLogWriter(512)
logger := io.MultiWriter(os.Stdout, logWriter)
dir, srv := makeHTTPServerWithConfigLog(t, nil, logger, logWriter)
defer os.RemoveAll(dir)
defer srv.Shutdown()
defer srv.agent.Shutdown()
// Try passing an invalid log level
req, _ := http.NewRequest("GET", "/v1/agent/monitor?loglevel=invalid", nil)
resp := newClosableRecorder()
if _, err := srv.AgentMonitor(resp, req); err != nil {
t.Fatalf("err: %v", err)
}
if resp.Code != 400 {
t.Fatalf("bad: %v", resp.Code)
}
body, _ := ioutil.ReadAll(resp.Body)
if !strings.Contains(string(body), "Unknown log level") {
t.Fatalf("bad: %s", body)
}
// Begin streaming logs from the monitor endpoint
req, _ = http.NewRequest("GET", "/v1/agent/monitor?loglevel=debug", nil)
resp = newClosableRecorder()
go func() {
if _, err := srv.AgentMonitor(resp, req); err != nil {
t.Fatalf("err: %s", err)
}
}()
// Write the incoming logs from http to a channel for comparison
logCh := make(chan string, 5)
// Block until the first log entry from http
testutil.WaitForResult(func() (bool, error) {
line, err := resp.Body.ReadString('\n')
if err != nil && err != io.EOF {
return false, fmt.Errorf("err: %v", err)
}
if line == "" {
return false, fmt.Errorf("blank line")
}
logCh <- line
return true, nil
}, func(err error) {
t.Fatal(err)
})
go func() {
for {
line, err := resp.Body.ReadString('\n')
if err != nil && err != io.EOF {
t.Fatalf("err: %v", err)
}
if line != "" {
logCh <- line
}
}
}()
// Wait until we see the expected log line
expected := "raft: Initial configuration (index=1)"
testutil.WaitForResult(func() (bool, error) {
select {
case log := <-logCh:
if !strings.Contains(log, expected) {
return false, fmt.Errorf("Log message does not match expected")
}
case <-time.After(10 * time.Second):
return false, fmt.Errorf("failed to get log within timeout")
}
return true, nil
}, func(err error) {
t.Fatal(err)
})
}