agent/config.go
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package agent
import (
"fmt"
"net"
"os"
"golang.org/x/exp/slog"
)
const DefaultBindPort int = 4440
func DefaultConfig() *Config {
hostname, err := os.Hostname()
if err != nil {
panic(err)
}
return &Config{
BindAddr: "0.0.0.0",
ClientAddr: "0.0.0.0",
LogLevel: "INFO",
NodeName: hostname,
}
}
// Services are built on top of serf
// tags. The tag format under the hood
// is service=name=<name>,port=<port>
type Service struct {
name string
port int
}
type Config struct {
BindAddr string
ClientAddr string
LogLevel string
NodeName string
StartJoin []string
Services []Service
}
// lifted from serf, could be simplified
func (c *Config) AddrParts(address string) (string, int, error) {
checkAddr := address
START:
_, _, err := net.SplitHostPort(checkAddr)
if ae, ok := err.(*net.AddrError); ok && ae.Err == "missing port in address" {
checkAddr = fmt.Sprintf("%s:%d", checkAddr, DefaultBindPort)
goto START
}
if err != nil {
return "", 0, err
}
// Get the address
addr, err := net.ResolveTCPAddr("tcp", checkAddr)
if err != nil {
return "", 0, err
}
return addr.IP.String(), addr.Port, nil
}
func (c *Config) GetLogLevel() slog.Level {
var lvl slog.Level
if c.LogLevel == "DEBUG" {
lvl = slog.LevelDebug
}
if c.LogLevel == "INFO" {
lvl = slog.LevelInfo
}
if c.LogLevel == "WARN" || c.LogLevel == "WARNING" {
lvl = slog.LevelWarn
}
if c.LogLevel == "ERR" || c.LogLevel == "ERROR" {
lvl = slog.LevelError
}
return lvl
}