func mustNewMembersAPI(c *cli.Context) client.MembersAPI {
eps, err := getEndpoints(c)
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
tr, err := getTransport(c)
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
hc, err := client.NewHTTPClient(tr, eps)
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
if !c.GlobalBool("no-sync") {
ctx, cancel := context.WithTimeout(context.Background(), client.DefaultRequestTimeout)
err := hc.Sync(ctx)
cancel()
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
}
if c.GlobalBool("debug") {
fmt.Fprintf(os.Stderr, "Cluster-Endpoints: %s\n", strings.Join(hc.Endpoints(), ", "))
}
return client.NewMembersAPI(hc)
}
func mustNewAuthRoleAPI(c *cli.Context) client.AuthRoleAPI {
hc := mustNewClient(c)
if c.GlobalBool("debug") {
fmt.Fprintf(os.Stderr, "Cluster-Endpoints: %s\n", strings.Join(hc.Endpoints(), ", "))
}
return client.NewAuthRoleAPI(hc)
}
func mustNewClient(c *cli.Context) client.Client {
hc, err := newClient(c)
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
debug := c.GlobalBool("debug")
if debug {
client.EnablecURLDebug()
}
if !c.GlobalBool("no-sync") {
if debug {
fmt.Fprintf(os.Stderr, "start to sync cluster using endpoints(%s)\n", strings.Join(hc.Endpoints(), ","))
}
ctx, cancel := context.WithTimeout(context.Background(), client.DefaultRequestTimeout)
err := hc.Sync(ctx)
cancel()
if err != nil {
if err == client.ErrNoEndpoints {
fmt.Fprintf(os.Stderr, "etcd cluster has no published client endpoints.\n")
fmt.Fprintf(os.Stderr, "Try '--no-sync' if you want to access non-published client endpoints(%s).\n", strings.Join(hc.Endpoints(), ","))
handleError(ExitServerError, err)
}
if isConnectionError(err) {
handleError(ExitBadConnection, err)
}
// fail-back to try sync cluster with peer API. this is for making etcdctl work with etcd 0.4.x.
// TODO: remove this when we deprecate the support for etcd 0.4.
eps, serr := syncWithPeerAPI(c, ctx, hc.Endpoints())
if serr != nil {
if isConnectionError(serr) {
handleError(ExitBadConnection, serr)
} else {
handleError(ExitServerError, serr)
}
}
err = hc.SetEndpoints(eps)
if err != nil {
handleError(ExitServerError, err)
}
}
if debug {
fmt.Fprintf(os.Stderr, "got endpoints(%s) after sync\n", strings.Join(hc.Endpoints(), ","))
}
}
if debug {
fmt.Fprintf(os.Stderr, "Cluster-Endpoints: %s\n", strings.Join(hc.Endpoints(), ", "))
}
return hc
}
func mustNewClient(c *cli.Context) client.Client {
eps, err := getEndpoints(c)
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
tr, err := getTransport(c)
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
cfg := client.Config{
Transport: tr,
Endpoints: eps,
HeaderTimeoutPerRequest: c.GlobalDuration("timeout"),
}
uFlag := c.GlobalString("username")
if uFlag != "" {
username, password, err := getUsernamePasswordFromFlag(uFlag)
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
cfg.Username = username
cfg.Password = password
}
hc, err := client.New(cfg)
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
if !c.GlobalBool("no-sync") {
ctx, cancel := context.WithTimeout(context.Background(), client.DefaultRequestTimeout)
err := hc.Sync(ctx)
cancel()
if err != nil {
handleError(ExitServerError, err)
os.Exit(1)
}
}
if c.GlobalBool("debug") {
fmt.Fprintf(os.Stderr, "Cluster-Endpoints: %s\n", strings.Join(hc.Endpoints(), ", "))
client.EnablecURLDebug()
}
return hc
}
func mustNewClientNoSync(c *cli.Context) client.Client {
hc, err := newClient(c)
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
if c.GlobalBool("debug") {
fmt.Fprintf(os.Stderr, "Cluster-Endpoints: %s\n", strings.Join(hc.Endpoints(), ", "))
client.EnablecURLDebug()
}
return hc
}
// rawhandle wraps the command function handlers and sets up the
// environment but performs no output formatting.
func rawhandle(c *cli.Context, fn handlerFunc) (*etcd.Response, error) {
endpoints, err := getEndpoints(c)
if err != nil {
return nil, err
}
tr, err := getTransport(c)
if err != nil {
return nil, err
}
client := etcd.NewClient(endpoints)
client.SetTransport(tr)
if c.GlobalBool("debug") {
go dumpCURL(client)
}
// Sync cluster.
if !c.GlobalBool("no-sync") {
if ok := client.SyncCluster(); !ok {
handleError(FailedToConnectToHost, errors.New("cannot sync with the cluster using endpoints "+strings.Join(endpoints, ", ")))
}
}
if c.GlobalBool("debug") {
fmt.Fprintf(os.Stderr, "Cluster-Endpoints: %s\n", strings.Join(client.GetCluster(), ", "))
}
// Execute handler function.
return fn(c, client)
}
func mustNewClient(c *cli.Context) client.Client {
hc, err := newClient(c)
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
debug := c.GlobalBool("debug")
if debug {
client.EnablecURLDebug()
}
if !c.GlobalBool("no-sync") {
if debug {
fmt.Fprintf(os.Stderr, "start to sync cluster using endpoints(%s)\n", strings.Join(hc.Endpoints(), ","))
}
ctx, cancel := context.WithTimeout(context.Background(), client.DefaultRequestTimeout)
err := hc.Sync(ctx)
cancel()
if err != nil {
if err == client.ErrNoEndpoints {
fmt.Fprintf(os.Stderr, "etcd cluster has no published client endpoints.\n")
fmt.Fprintf(os.Stderr, "Try '--no-sync' if you want to access non-published client endpoints(%s).\n", strings.Join(hc.Endpoints(), ","))
}
handleError(ExitServerError, err)
os.Exit(1)
}
if debug {
fmt.Fprintf(os.Stderr, "got endpoints(%s) after sync\n", strings.Join(hc.Endpoints(), ","))
}
}
if debug {
fmt.Fprintf(os.Stderr, "Cluster-Endpoints: %s\n", strings.Join(hc.Endpoints(), ", "))
}
return hc
}
// rawhandle wraps the command function handlers and sets up the
// environment but performs no output formatting.
func rawhandle(c *cli.Context, fn handlerFunc) (*etcd.Response, error) {
sync := !c.GlobalBool("no-sync")
peerstr := c.GlobalString("peers")
// Use an environment variable if nothing was supplied on the
// command line
if peerstr == "" {
peerstr = os.Getenv("ETCDCTL_PEERS")
}
// If we still don't have peers, use a default
if peerstr == "" {
peerstr = "127.0.0.1:4001"
}
peers := strings.Split(peerstr, ",")
// If no sync, create http path for each peer address
if !sync {
revisedPeers := make([]string, 0)
for _, peer := range peers {
if revisedPeer, err := createHttpPath(peer); err != nil {
fmt.Fprintf(os.Stderr, "Unsupported url %v: %v\n", peer, err)
} else {
revisedPeers = append(revisedPeers, revisedPeer)
}
}
peers = revisedPeers
}
client := etcd.NewClient(peers)
if c.GlobalBool("debug") {
go dumpCURL(client)
}
// Sync cluster.
if sync {
if ok := client.SyncCluster(); !ok {
handleError(FailedToConnectToHost, errors.New("Cannot sync with the cluster using peers "+strings.Join(peers, ", ")))
}
}
if c.GlobalBool("debug") {
fmt.Fprintf(os.Stderr, "Cluster-Peers: %s\n",
strings.Join(client.GetCluster(), " "))
}
// Execute handler function.
return fn(c, client)
}
func handleImportSnap(c *cli.Context) {
d, err := ioutil.ReadFile(c.String("snap"))
if err != nil {
if c.String("snap") == "" {
fmt.Printf("no snapshot file provided (use --snap)\n")
} else {
fmt.Printf("cannot read snapshot file %s\n", c.String("snap"))
}
os.Exit(1)
}
st := store.New()
err = st.Recovery(d)
if err != nil {
fmt.Printf("cannot recover the snapshot file: %v\n", err)
os.Exit(1)
}
endpoints, err := getEndpoints(c)
if err != nil {
handleError(ExitServerError, err)
}
tr, err := getTransport(c)
if err != nil {
handleError(ExitServerError, err)
}
wg := &sync.WaitGroup{}
setc := make(chan set)
concurrent := c.Int("c")
fmt.Printf("starting to import snapshot %s with %d clients\n", c.String("snap"), concurrent)
for i := 0; i < concurrent; i++ {
client := etcd.NewClient(endpoints)
client.SetTransport(tr)
if c.GlobalBool("debug") {
go dumpCURL(client)
}
if ok := client.SyncCluster(); !ok {
handleError(ExitBadConnection, errors.New("cannot sync with the cluster using endpoints "+strings.Join(endpoints, ", ")))
}
wg.Add(1)
go runSet(client, setc, wg)
}
all, err := st.Get("/", true, true)
if err != nil {
handleError(ExitServerError, err)
}
n := copyKeys(all.Node, setc)
hiddens := c.StringSlice("hidden")
for _, h := range hiddens {
allh, err := st.Get(h, true, true)
if err != nil {
handleError(ExitServerError, err)
}
n += copyKeys(allh.Node, setc)
}
close(setc)
wg.Wait()
fmt.Printf("finished importing %d keys\n", n)
}
func handleClusterHealth(c *cli.Context) {
endpoints, err := getEndpoints(c)
if err != nil {
handleError(ExitServerError, err)
}
tr, err := getTransport(c)
if err != nil {
handleError(ExitServerError, err)
}
client := etcd.NewClient(endpoints)
client.SetTransport(tr)
if c.GlobalBool("debug") {
go dumpCURL(client)
}
if ok := client.SyncCluster(); !ok {
handleError(ExitBadConnection, errors.New("cannot sync with the cluster using endpoints "+strings.Join(endpoints, ", ")))
}
// do we have a leader?
cl := client.GetCluster()
ep, ls0, err := getLeaderStats(tr, cl)
if err != nil {
fmt.Println("cluster may be unhealthy: failed to connect", cl)
os.Exit(1)
}
// is raft stable and making progress?
client = etcd.NewClient([]string{ep})
client.SetTransport(tr)
resp, err := client.Get("/", false, false)
if err != nil {
fmt.Println("cluster is unhealthy")
os.Exit(1)
}
rt0, ri0 := resp.RaftTerm, resp.RaftIndex
time.Sleep(time.Second)
resp, err = client.Get("/", false, false)
if err != nil {
fmt.Println("cluster is unhealthy")
os.Exit(1)
}
rt1, ri1 := resp.RaftTerm, resp.RaftIndex
if rt0 != rt1 {
fmt.Println("cluster is unhealthy")
os.Exit(1)
}
if ri1 == ri0 {
fmt.Println("cluster is unhealthy")
os.Exit(1)
}
// are all the members makeing progress?
_, ls1, err := getLeaderStats(tr, []string{ep})
if err != nil {
fmt.Println("cluster is unhealthy")
os.Exit(1)
}
fmt.Println("cluster is healthy")
// self is healthy
var prints []string
prints = append(prints, fmt.Sprintf("member %s is healthy\n", ls1.Leader))
for name, fs0 := range ls0.Followers {
fs1, ok := ls1.Followers[name]
if !ok {
fmt.Println("Cluster configuration changed during health checking. Please retry.")
os.Exit(1)
}
if fs1.Counts.Success <= fs0.Counts.Success {
prints = append(prints, fmt.Sprintf("member %s is unhealthy\n", name))
} else {
prints = append(prints, fmt.Sprintf("member %s is healthy\n", name))
}
}
sort.Strings(prints)
for _, p := range prints {
fmt.Print(p)
}
os.Exit(0)
}