logger

Documentation

Index

• Constants
• func NewConsole() (io.Writer, io.Writer, error)
• func NewFile(stdout string, stderr string) (io.Writer, io.Writer, error)
• func NewRedis(stdout string, stderr string) (io.WriteCloser, io.WriteCloser, error)
• func RedisParseURL(address string) (host string, channel string, err error)
• func Serialize(path string, logs []Logs) error
• type Console
  • func (c *Console) Write(data []byte) (n int, err error)
• type File
  • func (c *File) Write(data []byte) (int, error)
• type Loggers
  • func NewLoggers() *Loggers
  • func (c *Loggers) Add(stdout io.Writer, stderr io.Writer)
  • func (c *Loggers) Log() cio.Creator
  • func (c *Loggers) Stderrs() []io.Writer
  • func (c *Loggers) Stdouts() []io.Writer
• type Logs
  • func Deserialize(path string) ([]Logs, error)
• type LogsRedis
• type Redis
  • func (c *Redis) Close() error
  • func (c *Redis) Write(data []byte) (int, error)

Constants

const ConsoleType = "console"

ConsoleType defines console logger type name

const FileType = "file"

FileType defines file logger type name

const RedisType = "redis"

RedisType defines redis logger type name

Functions

func NewConsole

func NewConsole() (io.Writer, io.Writer, error)

NewConsole does nothing, it's here for consistancy

func NewFile

func NewFile(stdout string, stderr string) (io.Writer, io.Writer, error)

NewFile open file and prepare logs writing

func NewRedis

func NewRedis(stdout string, stderr string) (io.WriteCloser, io.WriteCloser, error)

NewRedis create new redis backend and initialize connection

func RedisParseURL

func RedisParseURL(address string) (host string, channel string, err error)

RedisParseURL parse an url and returns interresting part after validation

func Serialize

func Serialize(path string, logs []Logs) error

Serialize dumps logs array into a json file

Types

type Console

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

Console does nothing else that print logs on console stdout/stderr, there are no config

func (*Console) Write

func (c *Console) Write(data []byte) (n int, err error)

type File

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

File write stdout/stderr to files

func (*File) Write

func (c *File) Write(data []byte) (int, error)

Write forwards write to underlaying layer

type Loggers

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

Loggers keeps stdout and stderr backend list

func NewLoggers

func NewLoggers() *Loggers

NewLoggers initialize empty lists

func (*Loggers) Add

func (c *Loggers) Add(stdout io.Writer, stderr io.Writer)

Add adds a defined backend on the list

func (*Loggers) Log

func (c *Loggers) Log() cio.Creator

Log create the containers logs redirector

func (*Loggers) Stderrs

func (c *Loggers) Stderrs() []io.Writer

Stderrs returns list of stderr availables

func (*Loggers) Stdouts

func (c *Loggers) Stdouts() []io.Writer

Stdouts returns list of stdout availables

type Logs

type Logs struct {
	Type string    `json:"type"`
	Data LogsRedis `json:"data"`
}

Logs defines a custom backend with variable settings

func Deserialize

func Deserialize(path string) ([]Logs, error)

Deserialize reads json from disks and returns []Logs

type LogsRedis

type LogsRedis struct {
	// Stdout is the redis url for stdout (redis://host/channel)
	Stdout string `json:"stdout"`

	// Stderr is the redis url for stderr (redis://host/channel)
	Stderr string `json:"stderr"`
}

LogsRedis defines how to connect a redis logs backend

type Redis

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

Redis send stdout/stderr to a Redis PubSub channel

func (*Redis) Close

func (c *Redis) Close() error

Close closes redis connection

func (*Redis) Write

func (c *Redis) Write(data []byte) (int, error)

Write will write to the channel