catch

package
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 Go to latest Published: Jun 17, 2025 License: Apache-2.0 Imports: 66 Imported by: 0

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Index

Constants

View Source 
const (
	// SystemService is the name of the system meta-service that manages the server.
	SystemService = "sys"
	// CatchService is the name of the self-service that manages the server.
	CatchService = "catch"
)
View Source 
const (
	ServiceDataTypeService ServiceDataType = "service"
	ServiceDataTypeCron    ServiceDataType = "cron"
	ServiceDataTypeDocker  ServiceDataType = "docker"
	ServiceDataTypeUnknown ServiceDataType = "unknown"

	ComponentStatusStarting ComponentStatus = "starting"
	ComponentStatusRunning  ComponentStatus = "running"
	ComponentStatusStopping ComponentStatus = "stopping"
	ComponentStatusStopped  ComponentStatus = "stopped"
	ComponentStatusUnknown  ComponentStatus = "unknown"
)

Variables

View Source 
var DockerStatusesUnknown = svc.DockerComposeStatus{}

Functions

func First 

func First[T1, T2 any](t1 T1, _ T2) T1

func VersionCommit 

func VersionCommit() string

VersionCommit returns the commit hash of the current build.

Types

type ComponentStatus 

type ComponentStatus string

func ComponentStatusFromServiceStatus 

func ComponentStatusFromServiceStatus(st svc.Status) ComponentStatus

type ComponentStatusData 

type ComponentStatusData struct {
	Name   string          `json:"name"`
	Status ComponentStatus `json:"status"`
}

type Config 

type Config struct {
	Signer               ssh.Signer
	DB                   *db.Store
	DefaultUser          string
	RootDir              string
	ServicesRoot         string
	MountsRoot           string
	InternalRegistryAddr string
	ExternalRegistryAddr string
	RegistryRoot         string
	LocalClient          *tailscale.LocalClient
}

Config consists of an `Address` (ip:port) and an `SSHConfig` that is used to configure the SSH server.

type Event 

type Event struct {
	// Time is the time the event was created in milliseconds since the epoch.
	Time        int64     `json:"time"`
	ServiceName string    `json:"serviceName"`
	Type        EventType `json:"type"`
	Data        EventData `json:"data,omitempty"`
}

type EventData 

type EventData struct {
	Data any
}

func (EventData) MarshalJSON 

func (m EventData) MarshalJSON() ([]byte, error)

MarshalJSON returns m as the JSON encoding of m.

type EventListener 

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

type EventType 

type EventType string
const (
	EventTypeUnknown              EventType = "Unknown"
	EventTypeHeartbeat            EventType = "Heartbeat"
	EventTypeServiceStatusChanged EventType = "ServiceStatusChanged"
	EventTypeServiceDeleted       EventType = "ServiceDeleted"
	EventTypeServiceCreated       EventType = "ServiceCreated"
	EventTypeServiceConfigChanged EventType = "ServiceConfigChanged"
	EventTypeServiceConfigStaged  EventType = "ServiceConfigStaged"
)

type FileInstaller 

type FileInstaller struct {
	File *os.File
	// contains filtered or unexported fields
}

func NewFileInstaller 

func NewFileInstaller(s *Server, cfg FileInstallerCfg) (*FileInstaller, error)

func (*FileInstaller) Close 

func (i *FileInstaller) Close() (err error)

Close closes the temporary file and installs the service.

func (*FileInstaller) Fail 

func (i *FileInstaller) Fail()

func (*FileInstaller) Rate 

func (i *FileInstaller) Rate() float64

func (*FileInstaller) Received 

func (i *FileInstaller) Received() float64

func (*FileInstaller) Wait 

func (i *FileInstaller) Wait() error

func (*FileInstaller) Write 

func (i *FileInstaller) Write(p []byte) (n int, err error)

func (*FileInstaller) WriteAt 

func (i *FileInstaller) WriteAt(p []byte, offset int64) (n int, err error)

type FileInstallerCfg 

type FileInstallerCfg struct {
	InstallerCfg
	EnvFile bool

	Args      []string
	Network   NetworkOpts
	StageOnly bool
	NoBinary  bool

	// NewCmd, if set, will be used to create a new exec.Cmd.
	NewCmd func(name string, arg ...string) *exec.Cmd
}

type Installer 

type Installer struct {
	NewCmd func(name string, arg ...string) *exec.Cmd
	// contains filtered or unexported fields
}

Installer is an io.WriteCloser that writes the received binary to a file and installs the service when closed.

func (*Installer) Install 

func (si *Installer) Install() error

Install installs the service.

func (*Installer) InstallGen 

func (si *Installer) InstallGen(gen int) error

type InstallerCfg 

type InstallerCfg struct {
	ServiceName string
	User        string
	// Printer is a function to print messages to the client.
	Printer func(string, ...any) `json:"-"`

	// ClientOut is the writer to send messages to stdout on the client.
	ClientOut io.Writer `json:"-"`

	// Timer, if set, specifies that the service should be installed as a timer service.
	Timer *svc.TimerConfig `json:"-"`

	// SSHSessionCloser is an io.Closer that closes the SSH session.
	SSHSessionCloser io.Closer `json:"-"`
}

InstallerCfg is the configuration for installing a service.

type MacvlanOpts 

type MacvlanOpts struct {
	Mac    string
	Parent string
	VLAN   int
}

type NetworkOpts 

type NetworkOpts struct {
	Interfaces string
	Tailscale  TailscaleOpts
	Macvlan    MacvlanOpts
}

type Server 

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

Server is an SSH server that handles exec commands and SFTP subsystem requests. It listens on a specified address and uses the provided SSH server configuration. The server can be configured with a CmdHandlerFunc to handle exec commands and a PutHandlerFunc to handle SFTP PUT requests.

func NewServer 

func NewServer(config *Config) *Server

NewServer creates a new Server instance with the provided configuration.

func NewUnstartedServer 

func NewUnstartedServer(config *Config) *Server

NewUnstartedServer creates a new Server instance with the provided configuration but does not start it.

func (*Server) AddEventListener 

func (s *Server) AddEventListener(ch chan<- Event, filter func(Event) bool) set.Handle

func (*Server) DockerComposeStatus 

func (s *Server) DockerComposeStatus(ns string) (svc.DockerComposeStatus, error)

DockerComposeStatus returns the statuses of the containers for the given service.

func (*Server) DockerComposeStatuses 

func (s *Server) DockerComposeStatuses() (map[string]svc.DockerComposeStatus, error)

DockerComposeStatuses returns the status of all Docker services. The keys are the service names and the values are the statuses. Possible statuses are svc.StatusRunning, svc.StatusStopped, and svc.StatusUnknown.

func (*Server) IsServiceRunning 

func (s *Server) IsServiceRunning(name string) (bool, error)

IsServiceRunning returns whether the service with the given name is running. If this is a Docker service, it will return true if any of the containers are running.

func (*Server) NewInstaller 

func (s *Server) NewInstaller(cfg InstallerCfg) (*Installer, error)

NewInstaller returns a new SystemdInstaller for the given service name. The binary will be stored in the service's bin directory and installed as a service when closed.

func (*Server) PublishEvent 

func (s *Server) PublishEvent(event Event)

func (*Server) RemoveEventListener 

func (s *Server) RemoveEventListener(h set.Handle)

func (*Server) RemoveService 

func (s *Server) RemoveService(name string) error

RemoveService checks if service is stopped, removes the service directory from the filesystem, and removes the service from the database.

func (*Server) SSHHandler 

func (s *Server) SSHHandler(session gssh.Session)

func (*Server) ServeInternalRegistry 

func (s *Server) ServeInternalRegistry(listener net.Listener) error

func (*Server) ServeSSH 

func (s *Server) ServeSSH(listener net.Listener) error

ServeSSH starts the server and listens for incoming connections. It blocks until an error occurs.

func (*Server) Shutdown 

func (s *Server) Shutdown()

func (*Server) Start 

func (s *Server) Start()

Start starts the server. It panics if the server is already started.

func (*Server) SystemdStatus 

func (s *Server) SystemdStatus(ns string) (svc.Status, error)

SystemdStatus returns the status of the service with the given name. Possible statuses are svc.StatusRunning, svc.StatusStopped, and svc.StatusUnknown.

func (*Server) SystemdStatuses 

func (s *Server) SystemdStatuses() (map[string]svc.Status, error)

SystemdStatuses returns the status of all systemd services. The keys are the service names and the values are the statuses. Possible statuses are svc.StatusRunning, svc.StatusStopped, and svc.StatusUnknown.

func (*Server) WebMux 

func (s *Server) WebMux() (http.Handler, error)

type ServerInfo 

type ServerInfo struct {
	Version string `json:"version"`
	GOOS    string `json:"goos"`
	GOARCH  string `json:"goarch"`
}

func GetInfo 

func GetInfo() ServerInfo

type ServiceDataType 

type ServiceDataType string

func ServiceDataTypeFromServiceType 

func ServiceDataTypeFromServiceType(st db.ServiceType) ServiceDataType

func ServiceDataTypeFromUnitType 

func ServiceDataTypeFromUnitType(unitType string) ServiceDataType

type ServiceEnabler 

type ServiceEnabler interface {
	Enable() error
	Disable() error
}

ServiceEnabler is an interface extension for services that can be enabled and disabled.

type ServiceRunner 

type ServiceRunner interface {
	SetNewCmd(func(string, ...string) *exec.Cmd)

	Start() error
	Stop() error
	Restart() error

	Logs(opts *svc.LogOptions) error

	Remove() error
}

ServiceRunner is an interface for the minimal set of methods required to manage a service.

type ServiceStatusData 

type ServiceStatusData struct {
	ServiceName     string                `json:"serviceName"`
	ServiceType     ServiceDataType       `json:"serviceType"`
	ComponentStatus []ComponentStatusData `json:"components"`
}

type TailscaleOpts 

type TailscaleOpts struct {
	Version  string
	ExitNode string
	Tags     []string
	AuthKey  string
}

Source Files

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