func cmdConfig(c *cli.Context) error {
// Ensure that log messages always go to stderr when this command is
// being run (it is intended to be run in a subshell)
log.SetOutWriter(os.Stderr)
if len(c.Args()) != 1 {
return ErrExpectedOneMachine
}
host, err := getFirstArgHost(c)
if err != nil {
return err
}
dockerHost, authOptions, err := runConnectionBoilerplate(host, c)
if err != nil {
return fmt.Errorf("Error running connection boilerplate: %s", err)
}
log.Debug(dockerHost)
fmt.Printf("--tlsverify --tlscacert=%q --tlscert=%q --tlskey=%q -H=%s",
authOptions.CaCertPath, authOptions.ClientCertPath, authOptions.ClientKeyPath, dockerHost)
return nil
}
func cmdSsh(c *cli.Context) error {
name := c.Args().First()
if name == "" {
return ErrExpectedOneMachine
}
store := getStore(c)
host, err := loadHost(store, name)
if err != nil {
return err
}
currentState, err := host.Driver.GetState()
if err != nil {
return err
}
if currentState != state.Running {
return fmt.Errorf("Error: Cannot run SSH command: Host %q is not running", host.Name)
}
client, err := host.CreateSSHClient()
if err != nil {
return err
}
return client.Shell(c.Args().Tail()...)
}
func cmdSsh(c *cli.Context) {
args := c.Args()
name := args.First()
if name == "" {
fatal("Error: Please specify a machine name.")
}
store := getStore(c)
host, err := loadHost(store, name)
if err != nil {
fatal(err)
}
currentState, err := host.Driver.GetState()
if err != nil {
fatal(err)
}
if currentState != state.Running {
fatalf("Error: Cannot run SSH command: Host %q is not running", host.Name)
}
client, err := host.CreateSSHClient()
if err != nil {
fatal(err)
}
if err := client.Shell(c.Args().Tail()...); err != nil {
fatal(err)
}
}
func cmdScp(c *cli.Context) error {
hostLoader = &ScpHostLoader{}
args := c.Args()
if len(args) != 2 {
cli.ShowCommandHelp(c, "scp")
return errWrongNumberArguments
}
// TODO: Check that "-3" flag is available in user's version of scp.
// It is on every system I've checked, but the manual mentioned it's "newer"
sshArgs := append(baseSSHArgs, "-3")
if c.Bool("recursive") {
sshArgs = append(sshArgs, "-r")
}
src := args[0]
dest := args[1]
store := getStore(c)
cmd, err := getScpCmd(src, dest, sshArgs, store)
if err != nil {
return err
}
return runCmdWithStdIo(*cmd)
}
func getStore(c *cli.Context) persist.Store {
certInfo := getCertPathInfoFromContext(c)
return &persist.Filestore{
Path: c.GlobalString("storage-path"),
CaCertPath: certInfo.CaCertPath,
CaPrivateKeyPath: certInfo.CaPrivateKeyPath,
}
}
func cmdRegenerateCerts(c *cli.Context) {
force := c.Bool("force")
if force || confirmInput("Regenerate TLS machine certs? Warning: this is irreversible.") {
log.Infof("Regenerating TLS certificates")
if err := runActionWithContext("configureAuth", c); err != nil {
fatal(err)
}
}
}
func cmdCreateOuter(c *cli.Context) {
driverName := flagHackLookup("--driver")
// We didn't recognize the driver name.
if driverName == "" {
cli.ShowCommandHelp(c, "create")
return
}
name := c.Args().First()
// TODO: Fix hacky JSON solution
bareDriverData, err := json.Marshal(&drivers.BaseDriver{
MachineName: name,
})
if err != nil {
fatalf("Error attempting to marshal bare driver data: %s", err)
}
driver, err := newPluginDriver(driverName, bareDriverData)
if err != nil {
fatalf("Error loading driver %q: %s", driverName, err)
}
// TODO: So much flag manipulation and voodoo here, it seems to be
// asking for trouble.
//
// mcnFlags is the data we get back over the wire (type mcnflag.Flag)
// to indicate which parameters are available.
mcnFlags := driver.GetCreateFlags()
// This bit will actually make "create" display the correct flags based
// on the requested driver.
cliFlags, err := convertMcnFlagsToCliFlags(mcnFlags)
if err != nil {
fatalf("Error trying to convert provided driver flags to cli flags: %s", err)
}
for i := range c.App.Commands {
cmd := &c.App.Commands[i]
if cmd.HasName("create") {
cmd = addDriverFlagsToCommand(cliFlags, cmd)
}
}
if err := driver.Close(); err != nil {
fatal(err)
}
if err := c.App.Run(os.Args); err != nil {
fatal(err)
}
}
func cmdStatus(c *cli.Context) {
if len(c.Args()) != 1 {
fatal(ErrExpectedOneMachine)
}
host := getFirstArgHost(c)
currentState, err := host.Driver.GetState()
if err != nil {
log.Errorf("error getting state for host %s: %s", host.Name, err)
}
log.Info(currentState)
}
func getHostsFromContext(c *cli.Context) ([]*host.Host, error) {
store := getStore(c)
hosts := []*host.Host{}
for _, hostName := range c.Args() {
h, err := loadHost(store, hostName)
if err != nil {
return nil, fmt.Errorf("Could not load host %q: %s", hostName, err)
}
hosts = append(hosts, h)
}
return hosts, nil
}
// Returns the cert paths.
// codegangsta/cli will not set the cert paths if the storage-path is set to
// something different so we cannot use the paths in the global options. le
// sigh.
func getCertPathInfoFromContext(c *cli.Context) cert.CertPathInfo {
caCertPath := c.GlobalString("tls-ca-cert")
caKeyPath := c.GlobalString("tls-ca-key")
clientCertPath := c.GlobalString("tls-client-cert")
clientKeyPath := c.GlobalString("tls-client-key")
if caCertPath == "" {
caCertPath = filepath.Join(mcndirs.GetMachineCertDir(), "ca.pem")
}
if caKeyPath == "" {
caKeyPath = filepath.Join(mcndirs.GetMachineCertDir(), "ca-key.pem")
}
if clientCertPath == "" {
clientCertPath = filepath.Join(mcndirs.GetMachineCertDir(), "cert.pem")
}
if clientKeyPath == "" {
clientKeyPath = filepath.Join(mcndirs.GetMachineCertDir(), "key.pem")
}
return cert.CertPathInfo{
CaCertPath: caCertPath,
CaPrivateKeyPath: caKeyPath,
ClientCertPath: clientCertPath,
ClientKeyPath: clientKeyPath,
}
}
func cmdActive(c *cli.Context) {
if len(c.Args()) > 0 {
fatal("Error: Too many arguments given.")
}
store := getStore(c)
host, err := getActiveHost(store)
if err != nil {
fatalf("Error getting active host: %s", err)
}
if host != nil {
fmt.Println(host.Name)
}
}
func cmdRegenerateCerts(c *cli.Context) error {
if !c.Bool("force") {
ok, err := confirmInput("Regenerate TLS machine certs? Warning: this is irreversible.")
if err != nil {
return err
}
if !ok {
return nil
}
}
log.Infof("Regenerating TLS certificates")
return runActionWithContext("configureAuth", c)
}
func cmdConfig(c *cli.Context) {
if len(c.Args()) != 1 {
fatal(ErrExpectedOneMachine)
}
h := getFirstArgHost(c)
dockerHost, authOptions, err := runConnectionBoilerplate(h, c)
if err != nil {
fatalf("Error running connection boilerplate: %s", err)
}
log.Debug(dockerHost)
fmt.Printf("--tlsverify --tlscacert=%q --tlscert=%q --tlskey=%q -H=%s",
authOptions.CaCertPath, authOptions.ClientCertPath, authOptions.ClientKeyPath, dockerHost)
}
func cmdInspect(c *cli.Context) error {
if len(c.Args()) == 0 {
cli.ShowCommandHelp(c, "inspect")
return ErrExpectedOneMachine
}
host, err := getFirstArgHost(c)
if err != nil {
return err
}
tmplString := c.String("format")
if tmplString != "" {
var tmpl *template.Template
var err error
if tmpl, err = template.New("").Funcs(funcMap).Parse(tmplString); err != nil {
return fmt.Errorf("Template parsing error: %v\n", err)
}
jsonHost, err := json.Marshal(host)
if err != nil {
return err
}
obj := make(map[string]interface{})
if err := json.Unmarshal(jsonHost, &obj); err != nil {
return err
}
if err := tmpl.Execute(os.Stdout, obj); err != nil {
return err
}
os.Stdout.Write([]byte{'\n'})
} else {
prettyJSON, err := json.MarshalIndent(host, "", " ")
if err != nil {
return err
}
fmt.Println(string(prettyJSON))
}
return nil
}
func cmdActive(c *cli.Context) error {
if len(c.Args()) > 0 {
return errTooManyArguments
}
store := getStore(c)
host, err := getActiveHost(store)
if err != nil {
return fmt.Errorf("Error getting active host: %s", err)
}
if host != nil {
fmt.Println(host.Name)
}
return nil
}
func cmdUrl(c *cli.Context) error {
if len(c.Args()) != 1 {
return ErrExpectedOneMachine
}
host, err := getFirstArgHost(c)
if err != nil {
return err
}
url, err := host.GetURL()
if err != nil {
return err
}
fmt.Println(url)
return nil
}
func cmdStatus(c *cli.Context) error {
if len(c.Args()) != 1 {
return ErrExpectedOneMachine
}
host, err := getFirstArgHost(c)
if err != nil {
return err
}
currentState, err := host.Driver.GetState()
if err != nil {
log.Errorf("error getting state for host %s: %s", host.Name, err)
}
log.Info(currentState)
return nil
}
func cmdRm(c *cli.Context) {
if len(c.Args()) == 0 {
cli.ShowCommandHelp(c, "rm")
fatal("You must specify a machine name")
}
force := c.Bool("force")
store := getStore(c)
for _, hostName := range c.Args() {
h, err := loadHost(store, hostName)
if err != nil {
fatalf("Error removing host %q: %s", hostName, err)
}
if err := h.Driver.Remove(); err != nil {
if !force {
log.Errorf("Provider error removing machine %q: %s", hostName, err)
continue
}
}
if err := store.Remove(hostName); err != nil {
log.Errorf("Error removing machine %q from store: %s", hostName, err)
} else {
log.Infof("Successfully removed %s", hostName)
}
}
}
func getDriverOpts(c *cli.Context, mcnflags []mcnflag.Flag) drivers.DriverOptions {
// TODO: This function is pretty damn YOLO and would benefit from some
// sanity checking around types and assertions.
//
// But, we need it so that we can actually send the flags for creating
// a machine over the wire (cli.Context is a no go since there is so
// much stuff in it).
driverOpts := rpcdriver.RpcFlags{
Values: make(map[string]interface{}),
}
for _, f := range mcnflags {
driverOpts.Values[f.String()] = f.Default()
// Hardcoded logic for boolean... :(
if f.Default() == nil {
driverOpts.Values[f.String()] = false
}
}
for _, name := range c.FlagNames() {
getter, ok := c.Generic(name).(flag.Getter)
if !ok {
// TODO: This is pretty hacky. StringSlice is the only
// type so far we have to worry about which is not a
// Getter, though.
driverOpts.Values[name] = c.StringSlice(name)
continue
}
driverOpts.Values[name] = getter.Get()
}
return driverOpts
}
func getFirstArgHost(c *cli.Context) *host.Host {
store := getStore(c)
hostName := c.Args().First()
exists, err := store.Exists(hostName)
if err != nil {
fatalf("Error checking if host %q exists: %s", hostName, err)
}
if !exists {
fatalf("Host %q does not exist", hostName)
}
h, err := loadHost(store, hostName)
if err != nil {
// I guess I feel OK with bailing here since if we can't get
// the host reliably we're definitely not going to be able to
// do anything else interesting, but also this premature exit
// feels wrong to me. Let's revisit it later.
fatalf("Error trying to get host %q: %s", hostName, err)
}
return h
}
func runConnectionBoilerplate(h *host.Host, c *cli.Context) (string, *auth.AuthOptions, error) {
hostState, err := h.Driver.GetState()
if err != nil {
// TODO: This is a common operation and should have a commonly
// defined error.
return "", &auth.AuthOptions{}, fmt.Errorf("Error trying to get host state: %s", err)
}
if hostState != state.Running {
return "", &auth.AuthOptions{}, fmt.Errorf("%s is not running. Please start it in order to use the connection settings.", h.Name)
}
dockerHost, err := h.Driver.GetURL()
if err != nil {
return "", &auth.AuthOptions{}, fmt.Errorf("Error getting driver URL: %s", err)
}
if c.Bool("swarm") {
var err error
dockerHost, err = parseSwarm(dockerHost, h)
if err != nil {
return "", &auth.AuthOptions{}, fmt.Errorf("Error parsing swarm: %s", err)
}
}
u, err := url.Parse(dockerHost)
if err != nil {
return "", &auth.AuthOptions{}, fmt.Errorf("Error parsing URL: %s", err)
}
authOptions := h.HostOptions.AuthOptions
if err := checkCert(u.Host, authOptions, c); err != nil {
return "", &auth.AuthOptions{}, fmt.Errorf("Error checking and/or regenerating the certs: %s", err)
}
return dockerHost, authOptions, nil
}
func cmdScp(c *cli.Context) error {
args := c.Args()
if len(args) != 2 {
cli.ShowCommandHelp(c, "scp")
return errWrongNumberArguments
}
src := args[0]
dest := args[1]
store := getStore(c)
hostInfoLoader := &storeHostInfoLoader{store}
cmd, err := getScpCmd(src, dest, c.Bool("recursive"), hostInfoLoader)
if err != nil {
return err
}
if err := runCmdWithStdIo(*cmd); err != nil {
return err
}
return runCmdWithStdIo(*cmd)
}
func cmdInspect(c *cli.Context) {
if len(c.Args()) == 0 {
cli.ShowCommandHelp(c, "inspect")
fatal("You must specify a machine name")
}
tmplString := c.String("format")
if tmplString != "" {
var tmpl *template.Template
var err error
if tmpl, err = template.New("").Funcs(funcMap).Parse(tmplString); err != nil {
fatalf("Template parsing error: %v\n", err)
}
jsonHost, err := json.Marshal(getFirstArgHost(c))
if err != nil {
fatal(err)
}
obj := make(map[string]interface{})
if err := json.Unmarshal(jsonHost, &obj); err != nil {
fatal(err)
}
if err := tmpl.Execute(os.Stdout, obj); err != nil {
fatal(err)
}
os.Stdout.Write([]byte{'\n'})
} else {
prettyJSON, err := json.MarshalIndent(getFirstArgHost(c), "", " ")
if err != nil {
fatal(err)
}
fmt.Println(string(prettyJSON))
}
}
func cmdSsh(c *cli.Context) error {
// Check for help flag -- Needed due to SkipFlagParsing
for _, arg := range c.Args() {
if arg == "-help" || arg == "--help" || arg == "-h" {
cli.ShowCommandHelp(c, "ssh")
return nil
}
}
name := c.Args().First()
if name == "" {
return ErrExpectedOneMachine
}
store := getStore(c)
host, err := loadHost(store, name)
if err != nil {
return err
}
currentState, err := host.Driver.GetState()
if err != nil {
return err
}
if currentState != state.Running {
return fmt.Errorf("Error: Cannot run SSH command: Host %q is not running", host.Name)
}
client, err := host.CreateSSHClient()
if err != nil {
return err
}
return client.Shell(c.Args().Tail()...)
}
func cmdEnv(c *cli.Context) {
// Ensure that log messages always go to stderr when this command is
// being run (it is intended to be run in a subshell)
log.SetOutWriter(os.Stderr)
if len(c.Args()) != 1 && !c.Bool("unset") {
fatal(improperEnvArgsError)
}
h := getFirstArgHost(c)
dockerHost, authOptions, err := runConnectionBoilerplate(h, c)
if err != nil {
fatalf("Error running connection boilerplate: %s", err)
}
userShell := c.String("shell")
if userShell == "" {
shell, err := detectShell()
if err != nil {
fatal(err)
}
userShell = shell
}
t := template.New("envConfig")
usageHint := generateUsageHint(c.App.Name, c.Args().First(), userShell, c.Bool("no-proxy"), c.Bool("swarm"))
shellCfg := &ShellConfig{
DockerCertPath: authOptions.CertDir,
DockerHost: dockerHost,
DockerTLSVerify: "1",
UsageHint: usageHint,
MachineName: h.Name,
}
if c.Bool("no-proxy") {
ip, err := h.Driver.GetIP()
if err != nil {
fatalf("Error getting host IP: %s", err)
}
// first check for an existing lower case no_proxy var
noProxyVar := "no_proxy"
noProxyValue := os.Getenv("no_proxy")
// otherwise default to allcaps HTTP_PROXY
if noProxyValue == "" {
noProxyVar = "NO_PROXY"
noProxyValue = os.Getenv("NO_PROXY")
}
// add the docker host to the no_proxy list idempotently
switch {
case noProxyValue == "":
noProxyValue = ip
case strings.Contains(noProxyValue, ip):
//ip already in no_proxy list, nothing to do
default:
noProxyValue = fmt.Sprintf("%s,%s", noProxyValue, ip)
}
shellCfg.NoProxyVar = noProxyVar
shellCfg.NoProxyValue = noProxyValue
}
// unset vars
if c.Bool("unset") {
switch userShell {
case "fish":
shellCfg.Prefix = "set -e "
shellCfg.Delimiter = ""
shellCfg.Suffix = ";\n"
case "powershell":
shellCfg.Prefix = "Remove-Item Env:\\\\"
shellCfg.Delimiter = ""
shellCfg.Suffix = "\n"
case "cmd":
// since there is no way to unset vars in cmd just reset to empty
shellCfg.DockerCertPath = ""
shellCfg.DockerHost = ""
shellCfg.DockerTLSVerify = ""
shellCfg.Prefix = "set "
shellCfg.Delimiter = "="
shellCfg.Suffix = "\n"
default:
shellCfg.Prefix = "unset "
shellCfg.Delimiter = " "
shellCfg.Suffix = "\n"
}
tmpl, err := t.Parse(envTmpl)
if err != nil {
fatal(err)
}
if err := tmpl.Execute(os.Stdout, shellCfg); err != nil {
fatal(err)
}
return
}
switch userShell {
case "fish":
shellCfg.Prefix = "set -x "
shellCfg.Suffix = "\";\n"
shellCfg.Delimiter = " \""
case "powershell":
shellCfg.Prefix = "$Env:"
shellCfg.Suffix = "\"\n"
shellCfg.Delimiter = " = \""
case "cmd":
shellCfg.Prefix = "set "
shellCfg.Suffix = "\n"
shellCfg.Delimiter = "="
default:
shellCfg.Prefix = "export "
shellCfg.Suffix = "\"\n"
shellCfg.Delimiter = "=\""
}
tmpl, err := t.Parse(envTmpl)
if err != nil {
fatal(err)
}
if err := tmpl.Execute(os.Stdout, shellCfg); err != nil {
fatal(err)
}
}
func cmdLs(c *cli.Context) {
quiet := c.Bool("quiet")
filters, err := parseFilters(c.StringSlice("filter"))
if err != nil {
fatal(err)
}
store := getStore(c)
hostList, err := listHosts(store)
if err != nil {
fatal(err)
}
hostList = filterHosts(hostList, filters)
// Just print out the names if we're being quiet
if quiet {
for _, host := range hostList {
fmt.Println(host.Name)
}
return
}
swarmMasters := make(map[string]string)
swarmInfo := make(map[string]string)
w := tabwriter.NewWriter(os.Stdout, 5, 1, 3, ' ', 0)
fmt.Fprintln(w, "NAME\tACTIVE\tDRIVER\tSTATE\tURL\tSWARM")
for _, host := range hostList {
swarmOptions := host.HostOptions.SwarmOptions
if swarmOptions.Master {
swarmMasters[swarmOptions.Discovery] = host.Name
}
if swarmOptions.Discovery != "" {
swarmInfo[host.Name] = swarmOptions.Discovery
}
}
items := getHostListItems(hostList)
sortHostListItemsByName(items)
for _, item := range items {
activeString := "-"
if item.Active {
activeString = "*"
}
swarmInfo := ""
if item.SwarmOptions.Discovery != "" {
swarmInfo = swarmMasters[item.SwarmOptions.Discovery]
if item.SwarmOptions.Master {
swarmInfo = fmt.Sprintf("%s (master)", swarmInfo)
}
}
fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%s\n",
item.Name, activeString, item.DriverName, item.State, item.URL, swarmInfo)
}
w.Flush()
}
func cmdCreateInner(c *cli.Context) {
if len(c.Args()) > 1 {
fatalf("Invalid command line. Found extra arguments %v", c.Args()[1:])
}
name := c.Args().First()
driverName := c.String("driver")
certInfo := getCertPathInfoFromContext(c)
storePath := c.GlobalString("storage-path")
store := &persist.Filestore{
Path: storePath,
CaCertPath: certInfo.CaCertPath,
CaPrivateKeyPath: certInfo.CaPrivateKeyPath,
}
if name == "" {
cli.ShowCommandHelp(c, "create")
fatal("Error: No machine name specified.")
}
validName := host.ValidateHostName(name)
if !validName {
fatal("Error creating machine: ", mcnerror.ErrInvalidHostname)
}
if err := validateSwarmDiscovery(c.String("swarm-discovery")); err != nil {
fatalf("Error parsing swarm discovery: %s", err)
}
// TODO: Fix hacky JSON solution
bareDriverData, err := json.Marshal(&drivers.BaseDriver{
MachineName: name,
StorePath: c.GlobalString("storage-path"),
})
if err != nil {
fatalf("Error attempting to marshal bare driver data: %s", err)
}
driver, err := newPluginDriver(driverName, bareDriverData)
if err != nil {
fatalf("Error loading driver %q: %s", driverName, err)
}
h, err := store.NewHost(driver)
if err != nil {
fatalf("Error getting new host: %s", err)
}
h.HostOptions = &host.HostOptions{
AuthOptions: &auth.AuthOptions{
CertDir: mcndirs.GetMachineCertDir(),
CaCertPath: certInfo.CaCertPath,
CaPrivateKeyPath: certInfo.CaPrivateKeyPath,
ClientCertPath: certInfo.ClientCertPath,
ClientKeyPath: certInfo.ClientKeyPath,
ServerCertPath: filepath.Join(mcndirs.GetMachineDir(), name, "server.pem"),
ServerKeyPath: filepath.Join(mcndirs.GetMachineDir(), name, "server-key.pem"),
StorePath: filepath.Join(mcndirs.GetMachineDir(), name),
},
EngineOptions: &engine.EngineOptions{
ArbitraryFlags: c.StringSlice("engine-opt"),
Env: c.StringSlice("engine-env"),
InsecureRegistry: c.StringSlice("engine-insecure-registry"),
Labels: c.StringSlice("engine-label"),
RegistryMirror: c.StringSlice("engine-registry-mirror"),
StorageDriver: c.String("engine-storage-driver"),
TlsVerify: true,
InstallURL: c.String("engine-install-url"),
},
SwarmOptions: &swarm.SwarmOptions{
IsSwarm: c.Bool("swarm"),
Image: c.String("swarm-image"),
Master: c.Bool("swarm-master"),
Discovery: c.String("swarm-discovery"),
Address: c.String("swarm-addr"),
Host: c.String("swarm-host"),
Strategy: c.String("swarm-strategy"),
ArbitraryFlags: c.StringSlice("swarm-opt"),
},
}
exists, err := store.Exists(h.Name)
if err != nil {
fatalf("Error checking if host exists: %s", err)
}
if exists {
fatal(mcnerror.ErrHostAlreadyExists{
Name: h.Name,
})
}
// driverOpts is the actual data we send over the wire to set the
// driver parameters (an interface fulfilling drivers.DriverOptions,
// concrete type rpcdriver.RpcFlags).
mcnFlags := driver.GetCreateFlags()
driverOpts := getDriverOpts(c, mcnFlags)
if err := h.Driver.SetConfigFromFlags(driverOpts); err != nil {
fatalf("Error setting machine configuration from flags provided: %s", err)
}
if err := libmachine.Create(store, h); err != nil {
fatalf("Error creating machine: %s", err)
}
if err := saveHost(store, h); err != nil {
fatalf("Error attempting to save store: %s", err)
}
log.Infof("To see how to connect Docker to this machine, run: %s", fmt.Sprintf("%s env %s", os.Args[0], name))
}
