init

cmd/root.go

@@ -0,0 +1,118 @@
+package cmd
+
+import (
+	"fmt"
+	"github.com/kratisto/mam-contract/configuration"
+	"github.com/mitchellh/go-homedir"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	"os"
+)
+
+const (
+	// Log
+	parameterLogLevel  = "loglevel"
+	parameterLogFormat = "logformat"
+
+	defaultLogLevel  = "debug"
+	defaultLogFormat = "text"
+
+	// Mock
+	parameterMock = "mock"
+
+	defaultMock = false
+
+	// Router
+	parameterPort = "port"
+	defaultPort   = 8080
+
+	// DATABASE
+	parameterPostgresDBName   = "postgresdbname"
+	defaultPostgresDBName     = "postgres"
+	parameterPostgresDBSchema = "postgresdbschema"
+	defaultPostgresDBSchema   = "workScheduler"
+	parameterPostgresHost     = "postgreshost"
+	defaultPostgresHost       = "database"
+	parameterPostgresUser     = "postgresuser"
+	defaultPostgresUser       = "postgres"
+	parameterPostgresPwd      = "postgrespwd"
+	defaultPostgresPwd        = "password"
+)
+
+var (
+	config = &configuration.Config{}
+
+	cfgFile string
+	// GITHASH : Stores the git revision to be displayed
+	GITHASH string
+	// VERSION : Stores the binary version to be displayed
+	VERSION string
+
+	// rootCmd represents the base command when called without any subcommands
+	rootCmd = &cobra.Command{
+		Use:     "workScheduler",
+		Short:   "workScheduler",
+		Version: fmt.Sprintf("%s (%s)", VERSION, GITHASH),
+	}
+)
+
+// 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() {
+	if err := rootCmd.Execute(); err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+}
+
+func init() {
+	rootCmd.AddCommand(serveCmd)
+
+	// Here you will define your flags and configuration settings.
+	// Cobra supports persistent flags, which, if defined here,
+	// will be global for your application.
+	rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.workScheduler.yaml)")
+
+}
+
+// initConfig reads in config file and ENV variables if set.
+func initConfig() {
+	if cfgFile != "" {
+		// Use config file from the flag.
+		viper.SetConfigFile(cfgFile)
+	} else {
+		// Find home directory.
+		home, err := homedir.Dir()
+		if err != nil {
+			fmt.Println(err)
+			os.Exit(1)
+		}
+
+		// Search config in home directory with name ".workScheduler" (without extension).
+		viper.AddConfigPath(home)
+		viper.SetConfigName(".workScheduler")
+	}
+
+	viper.AutomaticEnv() // read in environment variables that match
+
+	// If a config file is found, read it in.
+	if err := viper.ReadInConfig(); err == nil {
+		fmt.Println("Using config file:", viper.ConfigFileUsed())
+	}
+
+	config.Mock = viper.GetBool(parameterMock)
+
+	config.Port = viper.GetInt(parameterPort)
+
+	config.LogLevel = viper.GetString(parameterLogLevel)
+	config.LogFormat = viper.GetString(parameterLogFormat)
+
+	config.PostgresDBName = viper.GetString(parameterPostgresDBName)
+	config.PostgresDBSchema = viper.GetString(parameterPostgresDBSchema)
+	config.PostgresHost = viper.GetString(parameterPostgresHost)
+	config.PostgresUser = viper.GetString(parameterPostgresUser)
+	config.PostgresPwd = viper.GetString(parameterPostgresPwd)
+
+	config.Version = VERSION
+
+}

cmd/serve.go

@@ -0,0 +1,56 @@
+package cmd
+
+import (
+	"github.com/kratisto/mam-contract/internal/ginserver"
+	"github.com/kratisto/mam-contract/internal/health"
+	"github.com/kratisto/mam-contract/internal/utils"
+	"github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+// serveCmd represents the serve command
+var serveCmd = &cobra.Command{
+	Use:    "serve",
+	Short:  "Serve endpoints",
+	PreRun: initServeBindingsFlags,
+	Run: func(cmd *cobra.Command, args []string) {
+		initConfig()
+		utils.InitLogger(config.LogLevel, config.LogFormat)
+		logrus.
+			WithField(parameterLogLevel, config.LogLevel).
+			WithField(parameterLogFormat, config.LogFormat).
+			WithField(parameterPort, config.Port).
+			WithField(parameterPostgresHost, config.PostgresHost).
+			Warn("Configuration")
+		injector := &utils.Injector{}
+		ginserver.Setup(injector, config)
+		health.Setup(injector)
+		ginserver.Start(injector)
+
+	},
+}
+
+func init() {
+	serveCmd.Flags().String(parameterLogLevel, defaultLogLevel, "Use this flag to set the logging level")
+	serveCmd.Flags().String(parameterLogFormat, defaultLogFormat, "Use this flag to set the logging format")
+	serveCmd.Flags().Bool(parameterMock, defaultMock, "Use this flag to mock external services")
+	serveCmd.Flags().Int(parameterPort, defaultPort, "Use this flag to set the listening port of the api")
+	serveCmd.Flags().String(parameterPostgresDBName, defaultPostgresDBName, "Use this flag to set database name")
+	serveCmd.Flags().String(parameterPostgresDBSchema, defaultPostgresDBSchema, "Use this flag to set database schema name")
+	serveCmd.Flags().String(parameterPostgresHost, defaultPostgresHost, "Use this flag to set database host")
+	serveCmd.Flags().String(parameterPostgresUser, defaultPostgresUser, "Use this flag to set database user name")
+	serveCmd.Flags().String(parameterPostgresPwd, defaultPostgresPwd, "Use this flag to set database user password")
+}
+
+func initServeBindingsFlags(cmd *cobra.Command, args []string) {
+	viper.BindPFlag(parameterLogLevel, cmd.Flags().Lookup(parameterLogLevel))
+	viper.BindPFlag(parameterLogFormat, cmd.Flags().Lookup(parameterLogFormat))
+	viper.BindPFlag(parameterMock, cmd.Flags().Lookup(parameterMock))
+	viper.BindPFlag(parameterPort, cmd.Flags().Lookup(parameterPort))
+	viper.BindPFlag(parameterPostgresDBName, cmd.Flags().Lookup(parameterPostgresDBName))
+	viper.BindPFlag(parameterPostgresDBSchema, cmd.Flags().Lookup(parameterPostgresDBSchema))
+	viper.BindPFlag(parameterPostgresHost, cmd.Flags().Lookup(parameterPostgresHost))
+	viper.BindPFlag(parameterPostgresUser, cmd.Flags().Lookup(parameterPostgresUser))
+	viper.BindPFlag(parameterPostgresPwd, cmd.Flags().Lookup(parameterPostgresPwd))
+}