edgectl

package
v1.5.0 Latest Latest
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 Go to latest Published: May 28, 2020 License: Apache-2.0 Imports: 41 Imported by: 0

Documentation

Index

Constants

View Source 
const ExitPrefix = "-- exit "

ExitPrefix is the token used by the daemon ot tell the client to exit with the specified status

View Source 
const SecretName = "ambassador-internal"

Variables

View Source 
var DaemonHelp = `The Edge Control Daemon is a long-lived background component that manages
connections and network state.

Launch the Edge Control Daemon:
    sudo edgectl daemon

Examine the Daemon's log output in
    ` + logfile + `
to troubleshoot problems.
`
View Source 
var Version = "(unknown version)"

Functions

func AESLicense 

func AESLicense(cmd *cobra.Command, args []string) error

func AESLogin 

func AESLogin(cmd *cobra.Command, args []string) error

func DaemonWorks 

func DaemonWorks() bool

DaemonWorks returns whether the daemon can function on this platform

func DisplayVersion 

func DisplayVersion() string

DisplayVersion returns a printable version for `edgectl`

func DoLogin 

func DoLogin(kubeinfo *k8s.KubeInfo, context, namespace, hostname string, openInBrowser, showURL, showToken, showWelcome bool) error

func GetExe 

func GetExe() string

func GetFreePort 

func GetFreePort() (int, error)

GetFreePort asks the kernel for a free open port that is ready to use. Similar to telepresence.utilities.find_free_port()

func IsServerRunning 

func IsServerRunning() bool

func LaunchDaemon 

func LaunchDaemon(ccmd *cobra.Command, _ []string) error

func MainViaDaemon 

func MainViaDaemon() error

func NewCmdUsage 

func NewCmdUsage(cmd *cobra.Command, groups []CmdGroup) func(*cobra.Command) error

NewCmdUsage constructs a cobra UsageFunc for a command based on the command groups passed in. Requires that the command has exactly the subcommands mentioned in the groups, panicking otherwise.

func NewLoggingWriter 

func NewLoggingWriter(l *log.Logger) io.Writer

NewLoggingWriter returns an io.Writer that logs each write line-by-line blindly passing through non-UTF-8 and over-long lines.

func Notify 

func Notify(p *supervisor.Process, message string)

Notify displays a desktop banner notification to the user

func RunAsDaemon 

func RunAsDaemon(dns, fallback string) error

RunAsDaemon is the main function when executing as the daemon

func RunAsTeleproxyBridge 

func RunAsTeleproxyBridge(context, namespace string) error

RunAsTeleproxyBridge is the main function when executing as teleproxy bridge

func RunAsTeleproxyIntercept 

func RunAsTeleproxyIntercept(dns, fallback string) error

RunAsTeleproxyIntercept is the main function when executing as teleproxy intercept

func SetUpLogging 

func SetUpLogging() supervisor.Logger

SetUpLogging sets up standard Edge Control Daemon logging

func SetVersion 

func SetVersion(v string)

SetVersion sets the current version for the executable

func WaitForSignal 

func WaitForSignal(p *supervisor.Process) error

WaitForSignal is a Worker that calls Shutdown if SIGINT or SIGTERM is received.

Types

type ClientMessage 

type ClientMessage struct {
	Args          []string
	RAI           *RunAsInfo
	APIVersion    int
	ClientVersion string
	InstallID     string
}

ClientMessage contains everything the daemon needs to process a user's command

type CmdGroup 

type CmdGroup struct {
	GroupName string
	CmdNames  []string
}

CmdGroup represents a group of commands and the name of that group

type Daemon 

type Daemon struct {
	// contains filtered or unexported fields
}

Daemon represents the state of the Edge Control Daemon

func (*Daemon) AddIntercept 

func (d *Daemon) AddIntercept(p *supervisor.Process, out *Emitter, ii *InterceptInfo) error

AddIntercept adds one intercept

func (*Daemon) ClearIntercepts 

func (d *Daemon) ClearIntercepts(p *supervisor.Process) error

ClearIntercepts removes all intercepts

func (*Daemon) Connect 

func (d *Daemon) Connect(
	p *supervisor.Process, out *Emitter, rai *RunAsInfo,
	context, namespace, managerNs string, kargs []string,
	installID string, isCI bool,
) error

Connect the daemon to a cluster

func (*Daemon) Disconnect 

func (d *Daemon) Disconnect(p *supervisor.Process, out *Emitter) error

Disconnect from the connected cluster

func (*Daemon) GetRootCommand 

func (d *Daemon) GetRootCommand(p *supervisor.Process, out *Emitter, data *ClientMessage) *cobra.Command

func (*Daemon) ListIntercepts 

func (d *Daemon) ListIntercepts(_ *supervisor.Process, out *Emitter) error

ListIntercepts lists active intercepts

func (*Daemon) MakeNetOverride 

func (d *Daemon) MakeNetOverride(p *supervisor.Process) error

MakeNetOverride sets up the network override resource for the daemon

func (*Daemon) RemoveIntercept 

func (d *Daemon) RemoveIntercept(p *supervisor.Process, out *Emitter, name string) error

RemoveIntercept removes one intercept by name

func (*Daemon) Status 

func (d *Daemon) Status(_ *supervisor.Process, out *Emitter) error

Status reports the current status of the daemon

type DaemonFormatter 

type DaemonFormatter struct {
	TimestampFormat string
}

DaemonFormatter formats log messages for the Edge Control Daemon

func (*DaemonFormatter) Format 

func (f *DaemonFormatter) Format(entry *logrus.Entry) ([]byte, error)

Format implement logrus.Formatter

type Emitter 

type Emitter struct {
	// contains filtered or unexported fields
}

Emitter provides a convenient way to send data to the client and handle errors in one spot.

func NewEmitter 

func NewEmitter(w io.Writer) *Emitter

NewEmitter returns a new Emitter to write to conn

func (*Emitter) Err 

func (out *Emitter) Err() error

Err returns the first non-EOF error that was encountered by the Emitter.

func (*Emitter) Print 

func (out *Emitter) Print(a ...interface{})

Print formats using the default formats for its operands and writes to the client. Errors are collected and returned by Err().

func (*Emitter) Printf 

func (out *Emitter) Printf(format string, a ...interface{})

Printf formats according to a format specifier and writes to the client. Errors are collected and returned by Err().

func (*Emitter) Println 

func (out *Emitter) Println(a ...interface{})

Println formats using the default formats for its operands and writes to the client, ending output with a newline. Errors are collected and returned by Err().

func (*Emitter) Send 

func (out *Emitter) Send(key string, value interface{})

Send a key/value pair to the client if the Emitter is in key/value mode. Errors are collected and returned by Err().

func (*Emitter) SendExit 

func (out *Emitter) SendExit(code int)

SendExit tells the client to exit with the specified return code. Errors are collected and returned by Err().

func (*Emitter) SetKV 

func (out *Emitter) SetKV()

type Intercept 

type Intercept struct {
	ResourceBase
	// contains filtered or unexported fields
}

Intercept is a Resource handle that represents a live intercept

func MakeIntercept 

func MakeIntercept(p *supervisor.Process, out *Emitter, tm *TrafficManager, cluster *KCluster, ii *InterceptInfo) (*Intercept, error)

MakeIntercept acquires an intercept and returns a Resource handle for it

type InterceptInfo 

type InterceptInfo struct {
	Name       string // Name of the intercept (user/logging)
	Namespace  string // Namespace in which to create the Intercept mapping
	Deployment string // Name of the deployment being intercepted
	Prefix     string // Prefix to intercept (default /)
	Patterns   map[string]string
	TargetHost string
	TargetPort int
}

InterceptInfo tracks one intercept operation

func (*InterceptInfo) Acquire 

func (ii *InterceptInfo) Acquire(_ *supervisor.Process, tm *TrafficManager) (int, error)

Acquire an intercept from the traffic manager

func (*InterceptInfo) PreviewURL 

func (ii *InterceptInfo) PreviewURL(hostname string) (url string)

PreviewURL returns the Service Preview URL for this intercept if it is configured appropriately, or the empty string otherwise.

func (*InterceptInfo) Release 

func (ii *InterceptInfo) Release(_ *supervisor.Process, tm *TrafficManager, port int) error

Release the given intercept.

func (*InterceptInfo) Retain 

func (ii *InterceptInfo) Retain(_ *supervisor.Process, tm *TrafficManager, port int) error

Retain the given intercept. This likely needs to be called every five seconds or so.

type KCluster 

type KCluster struct {
	ResourceBase
	// contains filtered or unexported fields
}

KCluster is a Kubernetes cluster reference

func TrackKCluster 

func TrackKCluster(
	p *supervisor.Process, rai *RunAsInfo, context, namespace string, kargs []string,
) (*KCluster, error)

TrackKCluster tracks connectivity to a cluster

func (*KCluster) Context 

func (c *KCluster) Context() string

Context returns the cluster's context name

func (*KCluster) GetKubectlArgs 

func (c *KCluster) GetKubectlArgs(args ...string) []string

GetKubectlArgs returns the kubectl command arguments to run a kubectl command with this cluster, including the namespace argument.

func (*KCluster) GetKubectlArgsNoNamespace 

func (c *KCluster) GetKubectlArgsNoNamespace(args ...string) []string

GetKubectlArgsNoNamespace returns the kubectl command arguments to run a kubectl command with this cluster, but without the namespace argument.

func (*KCluster) GetKubectlCmd 

func (c *KCluster) GetKubectlCmd(p *supervisor.Process, args ...string) *supervisor.Cmd

GetKubectlCmd returns a Cmd that runs kubectl with the given arguments and the appropriate environment to talk to the cluster

func (*KCluster) GetKubectlCmdNoNamespace 

func (c *KCluster) GetKubectlCmdNoNamespace(p *supervisor.Process, args ...string) *supervisor.Cmd

GetKubectlCmdNoNamespace returns a Cmd that runs kubectl with the given arguments and the appropriate environment to talk to the cluster, but it doesn't supply a namespace arg.

func (*KCluster) RAI 

func (c *KCluster) RAI() *RunAsInfo

RAI returns the RunAsInfo for this cluster

func (*KCluster) Server 

func (c *KCluster) Server() string

Server returns the cluster's server configuration

func (*KCluster) SetBridgeCheck 

func (c *KCluster) SetBridgeCheck(isBridgeOkay func() bool)

SetBridgeCheck sets the callable used to check whether the Teleproxy bridge is functioning. If this is nil/unset, cluster monitoring checks the cluster directly (via kubectl)

type LoginClaimsV1 

type LoginClaimsV1 struct {
	LoginTokenVersion string `json:"login_token_version"`
	jwt.StandardClaims
}

type Resource 

type Resource interface {
	Name() string
	IsOkay() bool
	Close() error
}

Resource represents one thing managed by edgectl daemon. Examples include network intercepts (via teleproxy intercept) and cluster connectivity.

func CheckedRetryingCommand 

func CheckedRetryingCommand(
	p *supervisor.Process, name string, args []string, rai *RunAsInfo,
	check func(*supervisor.Process) error, startGrace time.Duration,
) (Resource, error)

CheckedRetryingCommand launches a command, restarting it repeatedly if it quits, and killing and restarting it if it fails the given check.

type ResourceBase 

type ResourceBase struct {
	// contains filtered or unexported fields
}

ResourceBase has helpers to create a monitored resource

func (*ResourceBase) Close 

func (rb *ResourceBase) Close() error

Close shuts down this resource

func (*ResourceBase) IsOkay 

func (rb *ResourceBase) IsOkay() bool

IsOkay returns whether the resource is okay as far as monitoring is aware

func (*ResourceBase) Name 

func (rb *ResourceBase) Name() string

Name implements Resource

type RunAsInfo 

type RunAsInfo struct {
	Name string
	Cwd  string
	Env  []string
}

RunAsInfo contains the information required to launch a subprocess as the user such that it is likely to function as if the user launched it themselves.

func GetRunAsInfo 

func GetRunAsInfo() (*RunAsInfo, error)

GetRunAsInfo returns an RAI for the current user context

func GuessRunAsInfo 

func GuessRunAsInfo(p *supervisor.Process) (*RunAsInfo, error)

GuessRunAsInfo attempts to construct a RunAsInfo for the user logged in at the primary display

func (*RunAsInfo) Command 

func (rai *RunAsInfo) Command(p *supervisor.Process, args ...string) *supervisor.Cmd

Command returns a supervisor.Cmd that is configured to run a subprocess as the user in this context.

type Scout 

type Scout struct {
	Reporter *metriton.Reporter
	// contains filtered or unexported fields
}

func NewScout 

func NewScout(mode string) (s *Scout)

func (*Scout) Report 

func (s *Scout) Report(action string, meta ...ScoutMeta) error

func (*Scout) SetMetadatum 

func (s *Scout) SetMetadatum(key string, value interface{})

type ScoutMeta 

type ScoutMeta struct {
	Key   string
	Value interface{}
}

type TrafficManager 

type TrafficManager struct {
	// contains filtered or unexported fields
}

TrafficManager is a handle to access the Traffic Manager in a cluster.

func NewTrafficManager 

func NewTrafficManager(p *supervisor.Process, cluster *KCluster, managerNs string, installID string, isCI bool) (*TrafficManager, error)

NewTrafficManager returns a TrafficManager resource for the given cluster if it has a Traffic Manager service.

func (*TrafficManager) Close 

func (tm *TrafficManager) Close() error

Close implements Resource

func (*TrafficManager) IsOkay 

func (tm *TrafficManager) IsOkay() bool

IsOkay implements Resource

func (*TrafficManager) Name 

func (tm *TrafficManager) Name() string

Name implements Resource

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