2022-12-08 13:05:19 -03:00

91 lines
2.6 KiB
Go

// Copyright (c) 2020 Gitpod GmbH. All rights reserved.
// Licensed under the GNU Affero General Public License (AGPL).
// See License.AGPL.txt in the project root for license information.
package cmd
import (
"bytes"
"encoding/json"
"fmt"
"os"
"github.com/prometheus/client_golang/prometheus"
"github.com/spf13/cobra"
"github.com/gitpod-io/gitpod/common-go/log"
"github.com/gitpod-io/gitpod/common-go/tracing"
config "github.com/gitpod-io/gitpod/ws-manager/api/config"
)
var (
// ServiceName is the name we use for tracing/logging
ServiceName = "ws-manager"
// Version of this service - set during build
Version = ""
)
var cfgFile string
var kubeconfig string
var jsonLog bool
var verbose bool
// rootCmd represents the base command when called without any subcommands
var rootCmd = &cobra.Command{
Use: "ws-manager",
Short: "ws-manager starts/stops/controls workspace deployments in Kubernetes",
PersistentPreRun: func(cmd *cobra.Command, args []string) {
log.Init(ServiceName, Version, jsonLog, verbose)
},
}
// Execute adds all child commands to the root command and sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the rootCmd.
func Execute() {
promrep := &tracing.PromReporter{
Operations: map[string]tracing.SpanMetricMapping{
"StartWorkspace": {
Name: "wsman_start_workspace",
Help: "time it takes to service a StartWorkspace request",
Buckets: prometheus.LinearBuckets(0, 500, 10), // 10 buckets, each 500ms wide
},
},
}
closer := tracing.Init(ServiceName, tracing.WithPrometheusReporter(promrep))
if closer != nil {
defer closer.Close()
}
if err := rootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
}
}
func init() {
rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.kedgei.yaml)")
rootCmd.PersistentFlags().BoolVarP(&jsonLog, "json-log", "j", true, "produce JSON log output on verbose level")
rootCmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", false, "Enable verbose JSON logging")
rootCmd.PersistentFlags().StringVar(&kubeconfig, "kubeconfig", "", "path to the kubeconfig file to use (defaults to in-cluster config)")
}
func getConfig() *config.ServiceConfiguration {
ctnt, err := os.ReadFile(cfgFile)
if err != nil {
log.WithError(err).Fatal("cannot read configuration. Maybe missing --config?")
}
var cfg config.ServiceConfiguration
dec := json.NewDecoder(bytes.NewReader(ctnt))
dec.DisallowUnknownFields()
err = dec.Decode(&cfg)
if err != nil {
log.WithError(err).Fatal("cannot decode configuration. Maybe missing --config?")
}
return &cfg
}