/
main.go
52 lines (46 loc) · 1.16 KB
/
main.go
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package main
import (
"context"
"flag"
"os"
"github.com/hermanbanken/k8s-xds/internal"
"github.com/spf13/viper"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
var levelFlag = zap.LevelFlag("loglevel", zap.DebugLevel, "set the loglevel")
func main() {
flag.Parse()
core := zapcore.NewCore(
zapcore.NewJSONEncoder(zap.NewProductionEncoderConfig()),
os.Stderr,
levelFlag,
)
z := zap.New(core)
zap.ReplaceGlobals(z)
zap.L().Info("Starting control plane")
ctx := context.Background()
config, err := ReadConfig()
if err != nil {
zap.L().Fatal(err.Error())
}
internal.Run(ctx, config, &internal.DiscoveryImpl{Fn: internal.KubernetesEndpointWatch})
}
// ReadConfig reads the config data from file
func ReadConfig() (*viper.Viper, error) {
file := "/var/run/config/app.yaml"
if fileEnv, hasEnv := os.LookupEnv("CONFIG"); hasEnv {
file = fileEnv
}
zap.L().Debug("Reading configuration", zap.String("file", file))
v := viper.New()
v.SetConfigFile(file)
v.AutomaticEnv()
err := v.ReadInConfig()
if err != nil {
zap.L().Error("read config error", zap.Error(err))
} else {
zap.L().Debug("read config", zap.Any("config", v.AllSettings()))
}
return v, err
}