bpm

Documentation

Index

• Constants
• func GetNsPath(pid uint32, typ NsType) string
• type BackgroundProcessManager
  • func NewBackgroundProcessManager() BackgroundProcessManager
  • func (m *BackgroundProcessManager) KillBackgroundProcess(ctx context.Context, pid int, startTime int64) error
  • func (m *BackgroundProcessManager) StartProcess(cmd *ManagedProcess) error
• type ManagedProcess
• type NsType
• type ProcessBuilder
  • func DefaultProcessBuilder(cmd string, args ...string) *ProcessBuilder
  • func (b *ProcessBuilder) Build() *ManagedProcess
  • func (b *ProcessBuilder) EnableLocalMnt() *ProcessBuilder
  • func (b *ProcessBuilder) EnablePause() *ProcessBuilder
  • func (b *ProcessBuilder) SetContext(ctx context.Context) *ProcessBuilder
  • func (b *ProcessBuilder) SetIdentifier(id string) *ProcessBuilder
  • func (b *ProcessBuilder) SetNS(pid uint32, typ NsType) *ProcessBuilder
  • func (b *ProcessBuilder) SetNSOpt(options []nsOption) *ProcessBuilder
• type ProcessPair

Constants

const (
	DefaultProcPrefix = "/proc"
)

Functions

func GetNsPath

func GetNsPath(pid uint32, typ NsType) string

GetNsPath returns corresponding namespace path

Types

type BackgroundProcessManager

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

BackgroundProcessManager manages all background processes

func NewBackgroundProcessManager

func NewBackgroundProcessManager() BackgroundProcessManager

NewBackgroundProcessManager creates a background process manager

func (*BackgroundProcessManager) KillBackgroundProcess

func (m *BackgroundProcessManager) KillBackgroundProcess(ctx context.Context, pid int, startTime int64) error

KillBackgroundProcess sends SIGTERM to process

func (*BackgroundProcessManager) StartProcess

func (m *BackgroundProcessManager) StartProcess(cmd *ManagedProcess) error

StartProcess manages a process in manager

type ManagedProcess

type ManagedProcess struct {
	*exec.Cmd

	// If the identifier is not nil, process manager should make sure no other
	// process with this identifier is running when executing this command
	Identifier *string
}

ManagedProcess is a process which can be managed by backgroundProcessManager

type NsType

type NsType string

const (
	MountNS NsType = "mnt"
	// uts namespace is not supported yet
	// UtsNS   NsType = "uts"
	IpcNS NsType = "ipc"
	NetNS NsType = "net"
	PidNS NsType = "pid"
)

type ProcessBuilder

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

ProcessBuilder builds a exec.Cmd for daemon

func DefaultProcessBuilder

func DefaultProcessBuilder(cmd string, args ...string) *ProcessBuilder

DefaultProcessBuilder returns the default process builder

func (*ProcessBuilder) Build

func (b *ProcessBuilder) Build() *ManagedProcess

Build builds the process

func (*ProcessBuilder) EnableLocalMnt

func (b *ProcessBuilder) EnableLocalMnt() *ProcessBuilder

func (*ProcessBuilder) EnablePause

func (b *ProcessBuilder) EnablePause() *ProcessBuilder

EnablePause enables pause for process

func (*ProcessBuilder) SetContext

func (b *ProcessBuilder) SetContext(ctx context.Context) *ProcessBuilder

SetContext sets context for process

func (*ProcessBuilder) SetIdentifier

func (b *ProcessBuilder) SetIdentifier(id string) *ProcessBuilder

SetIdentifier sets the identifier of the process

func (*ProcessBuilder) SetNS

func (b *ProcessBuilder) SetNS(pid uint32, typ NsType) *ProcessBuilder

SetNS sets the namespace of the process

func (*ProcessBuilder) SetNSOpt

func (b *ProcessBuilder) SetNSOpt(options []nsOption) *ProcessBuilder

SetNSOpt sets the namespace of the process

type ProcessPair

type ProcessPair struct {
	Pid        int
	CreateTime int64
}

ProcessPair is an identifier for process