521 lines
17 KiB
Go
521 lines
17 KiB
Go
package server
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import (
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"errors"
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"fmt"
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"git.myservermanager.com/varakh/upda/util"
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"github.com/adrg/xdg"
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"go.uber.org/zap"
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"go.uber.org/zap/zapcore"
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"gorm.io/driver/postgres"
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"gorm.io/driver/sqlite"
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"gorm.io/gorm"
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"gorm.io/gorm/logger"
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"log"
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"moul.io/zapgorm2"
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"os"
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"path/filepath"
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"strconv"
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"strings"
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"time"
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)
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type appConfig struct {
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timeZone string
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isDevelopment bool
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isDebug bool
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}
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type serverConfig struct {
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port int
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listen string
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tlsEnabled bool
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tlsCertPath string
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tlsKeyPath string
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timeout time.Duration
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corsAllowOrigin []string
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corsAllowMethods []string
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corsAllowHeaders []string
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}
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type authConfig struct {
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authMethod string
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basicAuthUser string
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basicAuthPassword string
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basicAuthCredentials map[string]string
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}
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type taskConfig struct {
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updateCleanStaleEnabled bool
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updateCleanStaleInterval string
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updateCleanStaleMaxAge time.Duration
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eventCleanStaleEnabled bool
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eventCleanStaleInterval string
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eventCleanStaleMaxAge time.Duration
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actionsEnqueueEnabled bool
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actionsEnqueueInterval string
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actionsEnqueueBatchSize int
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actionsInvokeEnabled bool
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actionsInvokeInterval string
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actionsInvokeBatchSize int
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actionsInvokeMaxRetries int
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actionsCleanStaleEnabled bool
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actionsCleanStaleInterval string
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actionsCleanStaleMaxAge time.Duration
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prometheusRefreshInterval string
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}
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type lockConfig struct {
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redisEnabled bool
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redisUrl string
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}
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type webhookConfig struct {
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tokenLength int
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}
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type prometheusConfig struct {
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enabled bool
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path string
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secureTokenEnabled bool
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secureToken string
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}
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type Environment struct {
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appConfig *appConfig
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authConfig *authConfig
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serverConfig *serverConfig
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taskConfig *taskConfig
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lockConfig *lockConfig
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webhookConfig *webhookConfig
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prometheusConfig *prometheusConfig
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db *gorm.DB
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}
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func bootstrapEnvironment() *Environment {
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var err error
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// bootstrap logging (configured independently and required before any other action)
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loggingLevel := os.Getenv(envLoggingLevel)
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if loggingLevel == "" {
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if err = os.Setenv(envLoggingLevel, loggingLevelDefault); err != nil {
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log.Fatalf("Cannot set logging level: %v", err)
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}
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loggingLevel = os.Getenv(envLoggingLevel)
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}
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var level zap.AtomicLevel
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if level, err = zap.ParseAtomicLevel(loggingLevel); err != nil {
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log.Fatalf("Cannot parse logging level: %v", err)
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}
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loggingEncoding := os.Getenv(envLoggingEncoding)
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if loggingEncoding == "" {
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if err = os.Setenv(envLoggingEncoding, loggingEncodingDefault); err != nil {
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log.Fatalf("Cannot set logging encoding: %v", err)
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}
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loggingEncoding = os.Getenv(envLoggingEncoding)
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}
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if loggingEncoding != "json" && loggingEncoding != "console" {
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log.Fatalf("Cannot parse logging level: %v", errors.New("only 'json' and 'console' are allowed logging encodings"))
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}
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isDebug := level.Level() == zap.DebugLevel
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isDevelopment := os.Getenv(envDevelopment) == "true"
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var loggingEncoderConfig zapcore.EncoderConfig
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if loggingEncoding == "json" {
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loggingEncoderConfig = zap.NewProductionEncoderConfig()
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} else {
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loggingEncoderConfig = zap.NewDevelopmentEncoderConfig()
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}
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logPaths := []string{"stderr"}
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loggingDirectory := os.Getenv(envLoggingDirectory)
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if loggingDirectory != "" {
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logFile := filepath.Join(loggingDirectory, loggingFileNameDefault)
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if err = util.CreateFileWithParent(logFile); err != nil {
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log.Fatalf("Log file '%s' cannot be created: %v", loggingDirectory, err)
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}
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logPaths = append(logPaths, logFile)
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}
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var zapConfig *zap.Config
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if isDebug {
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zapConfig = &zap.Config{
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Level: level,
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Development: isDevelopment,
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Encoding: loggingEncoding,
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EncoderConfig: loggingEncoderConfig,
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OutputPaths: logPaths,
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ErrorOutputPaths: logPaths,
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}
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} else {
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zapConfig = &zap.Config{
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Level: level,
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Development: isDevelopment,
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Sampling: &zap.SamplingConfig{
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Initial: 100,
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Thereafter: 100,
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},
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Encoding: loggingEncoding,
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EncoderConfig: loggingEncoderConfig,
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OutputPaths: logPaths,
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ErrorOutputPaths: logPaths,
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}
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}
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zapLogger := zap.Must(zapConfig.Build())
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defer zapLogger.Sync()
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zap.ReplaceGlobals(zapLogger)
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// assign defaults from given environment variables and validate
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bootstrapFromEnvironmentAndValidate()
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// parse environment variables in actual configuration structs
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// app config
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ac := &appConfig{
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timeZone: os.Getenv(envTZ),
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isDebug: isDebug,
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isDevelopment: isDevelopment,
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}
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// server config
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var sc *serverConfig
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var serverPort int
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if serverPort, err = strconv.Atoi(os.Getenv(envServerPort)); err != nil {
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zap.L().Sugar().Fatalf("Invalid server port. Reason: %v", err)
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}
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serverTlsEnabled := os.Getenv(envServerTlsEnabled) == "true"
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if serverTlsEnabled {
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failIfEnvKeyNotPresent(envServerTlsCertPath)
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failIfEnvKeyNotPresent(envServerTlsKeyPath)
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}
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var serverTimeout time.Duration
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var errParse error
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if serverTimeout, errParse = time.ParseDuration(os.Getenv(envServerTimeout)); errParse != nil {
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zap.L().Sugar().Fatalf("Could not parse timeout. Reason: %s", errParse.Error())
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}
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sc = &serverConfig{
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port: serverPort,
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timeout: serverTimeout,
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listen: os.Getenv(envServerListen),
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tlsEnabled: serverTlsEnabled,
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tlsCertPath: os.Getenv(envServerTlsCertPath),
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tlsKeyPath: os.Getenv(envServerTlsKeyPath),
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corsAllowOrigin: []string{os.Getenv(envCorsAllowOrigin)},
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corsAllowMethods: []string{os.Getenv(envCorsAllowMethods)},
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corsAllowHeaders: []string{os.Getenv(envCorsAllowHeaders)},
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}
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authMode := os.Getenv(envAuthMode)
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if authMode != authModeBasicSingle && authMode != authModeBasicCredentials {
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zap.L().Sugar().Fatalln("Invalid auth mode. Reason: must be one of ['basic_single','basic_credentials'")
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}
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authC := &authConfig{
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authMethod: authMode,
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}
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if authModeBasicSingle == authMode {
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failIfEnvKeyNotPresent(envBasicAuthUser)
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failIfEnvKeyNotPresent(envBasicAuthPassword)
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authC.basicAuthUser = os.Getenv(envBasicAuthUser)
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authC.basicAuthPassword = os.Getenv(envBasicAuthPassword)
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}
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if authModeBasicCredentials == authMode {
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failIfEnvKeyNotPresent(envBasicAuthCredentials)
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authC.basicAuthCredentials = parseBasicAuthCredentials(envBasicAuthCredentials)
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}
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// task config
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var tc *taskConfig
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var updateCleanStaleMaxAge time.Duration
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if updateCleanStaleMaxAge, errParse = time.ParseDuration(os.Getenv(envTaskUpdateCleanStaleMaxAge)); errParse != nil {
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zap.L().Sugar().Fatalf("Could not parse max age for cleaning stale updates. Reason: %s", errParse.Error())
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}
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var eventCleanStaleMaxAge time.Duration
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if eventCleanStaleMaxAge, errParse = time.ParseDuration(os.Getenv(envTaskEventCleanStaleMaxAge)); errParse != nil {
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zap.L().Sugar().Fatalf("Could not parse max age for cleaning stale events. Reason: %s", errParse.Error())
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}
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var actionsEnqueueBatchSize int
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if actionsEnqueueBatchSize, err = strconv.Atoi(os.Getenv(envTaskActionsEnqueueBatchSize)); err != nil {
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zap.L().Sugar().Fatalf("Invalid actions enqueue batch size. Reason: %v", err)
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}
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if actionsEnqueueBatchSize <= 0 {
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zap.L().Sugar().Fatalf("Invalid actions enqueue batch size, must be a positive number.")
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}
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var actionsInvokeBatchSize int
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if actionsInvokeBatchSize, err = strconv.Atoi(os.Getenv(envTaskActionsInvokeBatchSize)); err != nil {
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zap.L().Sugar().Fatalf("Invalid actions invoke batch size. Reason: %v", err)
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}
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if actionsInvokeBatchSize <= 0 {
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zap.L().Sugar().Fatalf("Invalid actions invoke batch size, must be a positive number.")
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}
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var actionsInvokeMaxRetries int
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if actionsInvokeMaxRetries, err = strconv.Atoi(os.Getenv(envTaskActionsInvokeMaxRetries)); err != nil {
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zap.L().Sugar().Fatalf("Invalid actions invoke max retries. Reason: %v", err)
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}
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if actionsInvokeMaxRetries <= 0 {
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zap.L().Sugar().Fatalf("Invalid actions invoke max retries, must be a positive number.")
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}
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var actionsCleanStaleMaxAge time.Duration
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if actionsCleanStaleMaxAge, errParse = time.ParseDuration(os.Getenv(envTaskActionsCleanStaleMaxAge)); errParse != nil {
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zap.L().Sugar().Fatalf("Could not parse max age for cleaning stale actions. Reason: %s", errParse.Error())
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}
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tc = &taskConfig{
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updateCleanStaleEnabled: os.Getenv(envTaskUpdateCleanStaleEnabled) == "true",
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updateCleanStaleInterval: os.Getenv(envTaskUpdateCleanStaleInterval),
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updateCleanStaleMaxAge: updateCleanStaleMaxAge,
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eventCleanStaleEnabled: os.Getenv(envTaskEventCleanStaleEnabled) == "true",
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eventCleanStaleInterval: os.Getenv(envTaskEventCleanStaleInterval),
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eventCleanStaleMaxAge: eventCleanStaleMaxAge,
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actionsEnqueueEnabled: os.Getenv(envTaskActionsEnqueueEnabled) == "true",
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actionsEnqueueInterval: os.Getenv(envTaskActionsEnqueueInterval),
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actionsEnqueueBatchSize: actionsEnqueueBatchSize,
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actionsInvokeEnabled: os.Getenv(envTaskActionsInvokeEnabled) == "true",
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actionsInvokeInterval: os.Getenv(envTaskActionsInvokeInterval),
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actionsInvokeBatchSize: actionsInvokeBatchSize,
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actionsInvokeMaxRetries: actionsInvokeMaxRetries,
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actionsCleanStaleEnabled: os.Getenv(envTaskActionsCleanStaleEnabled) == "true",
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actionsCleanStaleInterval: os.Getenv(envTaskActionsCleanStaleInterval),
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actionsCleanStaleMaxAge: actionsCleanStaleMaxAge,
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prometheusRefreshInterval: os.Getenv(envTaskPrometheusRefreshInterval),
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}
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var lc *lockConfig
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lc = &lockConfig{
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redisEnabled: os.Getenv(envLockRedisEnabled) == "true",
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redisUrl: os.Getenv(envLockRedisUrl),
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}
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webhookTokenLength := 32
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if webhookTokenLength, err = strconv.Atoi(os.Getenv(envWebhooksTokenLength)); err != nil {
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zap.L().Sugar().Fatalf("Invalid webhook token length. Reason: %v", err)
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}
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if webhookTokenLength <= 0 {
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zap.L().Sugar().Fatalln("Invalid webhook token length. Reason: must be a positive number")
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}
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wc := &webhookConfig{
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tokenLength: webhookTokenLength,
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}
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pc := &prometheusConfig{
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enabled: os.Getenv(envPrometheusEnabled) == "true",
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path: os.Getenv(envPrometheusMetricsPath),
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secureTokenEnabled: os.Getenv(envPrometheusSecureTokenEnabled) == "true",
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secureToken: os.Getenv(envPrometheusSecureToken),
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}
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if pc.enabled && pc.secureTokenEnabled {
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failIfEnvKeyNotPresent(envPrometheusSecureToken)
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}
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// database setup
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gormConfig := &gorm.Config{Logger: logger.Default.LogMode(logger.Silent)}
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if isDebug && isDevelopment {
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gormZapLogger := zap.Must(zapConfig.Build())
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defer gormZapLogger.Sync()
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gormLogger := zapgorm2.New(gormZapLogger)
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gormConfig = &gorm.Config{Logger: gormLogger}
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}
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var db *gorm.DB
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zap.L().Sugar().Infof("Using database type '%s'", os.Getenv(envDbType))
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if os.Getenv(envDbType) == dbTypeSqlite {
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if os.Getenv(envDbSqliteFile) == "" {
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var defaultDbFile string
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if defaultDbFile, err = xdg.DataFile(Name + "/" + dbTypeSqliteDbNameDefault); err != nil {
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zap.L().Sugar().Fatalf("Database file '%s' could not be created. Reason: %v", defaultDbFile, err)
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}
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setEnvKeyDefault(envDbSqliteFile, defaultDbFile)
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}
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dbFile := os.Getenv(envDbSqliteFile)
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zap.L().Sugar().Infof("Using database file '%s'", dbFile)
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if err = util.CreateFileWithParent(dbFile); err != nil {
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zap.L().Sugar().Fatalf("Database file '%s' cannot be created: %v", dbFile, err)
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}
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if db, err = gorm.Open(sqlite.Open(dbFile), gormConfig); err != nil {
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zap.L().Sugar().Fatalf("Could not setup database: %v", err)
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}
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if res := db.Exec("PRAGMA foreign_keys = ON"); res.Error != nil {
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zap.L().Sugar().Fatalf("Could not execute foreign key for SQLite: %v", res.Error)
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}
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sqlDb, _ := db.DB()
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sqlDb.SetMaxOpenConns(1)
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zap.L().Sugar().Infof("SQLite: restricting max connections to '1'")
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} else if os.Getenv(envDbType) == dbTypePostgres {
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host := os.Getenv(envDbPostgresHost)
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port := os.Getenv(envDbPostgresPort)
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dbUser := os.Getenv(envDbPostgresUser)
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dbPass := os.Getenv(envDbPostgresPassword)
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dbName := os.Getenv(envDbPostgresName)
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dbTZ := os.Getenv(envDbPostgresTimeZone)
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if host == "" || port == "" || dbUser == "" || dbPass == "" || dbName == "" || dbTZ == "" {
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zap.L().Sugar().Fatalf("Some configuration for database type '%s' is missing", os.Getenv(envDbType))
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}
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dsn := fmt.Sprintf("host=%v user=%v password=%v dbname=%v port=%v sslmode=disable TimeZone=%v", host, dbUser, dbPass, dbName, port, dbTZ)
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if db, err = gorm.Open(postgres.Open(dsn), gormConfig); err != nil {
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zap.L().Sugar().Fatalf("Could not setup database: %v", err)
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}
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} else {
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zap.L().Sugar().Fatalf("Database type '%s' or '%s' is required", dbTypeSqlite, dbTypePostgres)
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}
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if db == nil {
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zap.L().Sugar().Fatalf("Could not setup database")
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}
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env := &Environment{appConfig: ac,
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authConfig: authC,
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serverConfig: sc,
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taskConfig: tc,
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lockConfig: lc,
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webhookConfig: wc,
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prometheusConfig: pc,
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db: db}
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if err = env.db.AutoMigrate(&Update{}, &Webhook{}, &Event{}, &Secret{}, &Action{}, &ActionInvocation{}); err != nil {
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zap.L().Sugar().Fatalf("Could not migrate database schema: %s", err)
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}
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zap.L().Sugar().Infof("appConfig %+v", env.appConfig)
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zap.L().Sugar().Infof("serverConfig %+v", env.serverConfig)
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zap.L().Sugar().Infof("taskConfig %+v", env.taskConfig)
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zap.L().Sugar().Infof("webhookConfig %+v", env.webhookConfig)
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return env
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}
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func bootstrapFromEnvironmentAndValidate() {
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failIfEnvKeyNotPresent(envSecret)
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// auth mode
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setEnvKeyDefault(envAuthMode, authModeDefault)
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// app
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setEnvKeyDefault(envTZ, tzDefault)
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// webhook
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setEnvKeyDefault(envWebhooksTokenLength, webhooksTokenLengthDefault)
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// lock
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setEnvKeyDefault(envLockRedisEnabled, redisEnabledDefault)
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// task
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setEnvKeyDefault(envTaskUpdateCleanStaleEnabled, taskUpdateCleanStaleEnabledDefault)
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setEnvKeyDefault(envTaskUpdateCleanStaleInterval, taskUpdateCleanStaleIntervalDefault)
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setEnvKeyDefault(envTaskUpdateCleanStaleMaxAge, taskUpdateCleanStaleMaxAgeDefault)
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setEnvKeyDefault(envTaskEventCleanStaleEnabled, taskEventCleanStaleEnabledDefault)
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setEnvKeyDefault(envTaskEventCleanStaleInterval, taskEventCleanStaleIntervalDefault)
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setEnvKeyDefault(envTaskEventCleanStaleMaxAge, taskEventCleanStaleMaxAgeDefault)
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setEnvKeyDefault(envTaskActionsEnqueueEnabled, taskActionsEnqueueEnabledDefault)
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setEnvKeyDefault(envTaskActionsEnqueueInterval, taskActionsEnqueueIntervalDefault)
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setEnvKeyDefault(envTaskActionsEnqueueBatchSize, taskActionsEnqueueBatchSizeDefault)
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setEnvKeyDefault(envTaskActionsInvokeEnabled, taskActionsInvokeEnabledDefault)
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setEnvKeyDefault(envTaskActionsInvokeInterval, taskActionsInvokeIntervalDefault)
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setEnvKeyDefault(envTaskActionsInvokeBatchSize, taskActionsInvokeBatchSizeDefault)
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setEnvKeyDefault(envTaskActionsInvokeMaxRetries, taskActionsInvokeMaxRetriesDefault)
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setEnvKeyDefault(envTaskActionsCleanStaleEnabled, taskActionsCleanStaleEnabledDefault)
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setEnvKeyDefault(envTaskActionsCleanStaleInterval, taskActionsCleanStaleIntervalDefault)
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setEnvKeyDefault(envTaskActionsCleanStaleMaxAge, taskActionsCleanStaleMaxAgeDefault)
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setEnvKeyDefault(envTaskPrometheusRefreshInterval, taskPrometheusRefreshDefault)
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// prometheus
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setEnvKeyDefault(envPrometheusEnabled, prometheusEnabledDefault)
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setEnvKeyDefault(envPrometheusMetricsPath, prometheusMetricsPathDefault)
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setEnvKeyDefault(envPrometheusSecureTokenEnabled, prometheusSecureTokenEnabledDefault)
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// db
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setEnvKeyDefault(envDbType, dbTypeSqlite)
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if os.Getenv(envDbType) == dbTypePostgres {
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setEnvKeyDefault(envDbPostgresHost, dbTypePostgresHostDefault)
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setEnvKeyDefault(envDbPostgresPort, dbTypePostgresPortDefault)
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setEnvKeyDefault(envDbPostgresTimeZone, dbTypePostgresTZDefault)
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}
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// server
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setEnvKeyDefault(envServerPort, serverPortDefault)
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setEnvKeyDefault(envServerListen, serverListenDefault)
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setEnvKeyDefault(envServerTlsEnabled, serverTlsEnabledDefault)
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setEnvKeyDefault(envCorsAllowOrigin, corsAllowOriginDefault)
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setEnvKeyDefault(envCorsAllowMethods, corsAllowMethodsDefault)
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setEnvKeyDefault(envCorsAllowHeaders, corsAllowHeadersDefault)
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setEnvKeyDefault(envServerTimeout, serverTimeoutDefault)
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}
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func failIfEnvKeyNotPresent(key string) {
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if os.Getenv(key) == "" {
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zap.L().Sugar().Fatalf("Not all required ENV variables given. Please set '%s'", key)
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}
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}
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func setEnvKeyDefault(key string, defaultValue string) {
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var err error
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if os.Getenv(key) == "" {
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if err = os.Setenv(key, defaultValue); err != nil {
|
|
zap.L().Sugar().Fatalf("Could not set default value for ENV variable '%s'", key)
|
|
}
|
|
|
|
zap.L().Sugar().Infof("Set '%s' to '%s'", key, defaultValue)
|
|
}
|
|
}
|
|
|
|
func parseBasicAuthCredentials(envProperty string) map[string]string {
|
|
if envProperty == "" {
|
|
zap.L().Sugar().Fatalln("Invalid env for parsing basic auth credentials")
|
|
}
|
|
credentialsFromEnv := os.Getenv(envProperty)
|
|
|
|
var credentials []string
|
|
credentials = strings.Split(credentialsFromEnv, ",")
|
|
|
|
basicAuthCredentials := make(map[string]string)
|
|
|
|
for _, c := range credentials {
|
|
pair := strings.Split(c, "=")
|
|
|
|
if len(pair) != 2 {
|
|
zap.L().Sugar().Fatalln("Invalid basic auth credentials. Reason: credentials must be specified with the = separator per credential entry")
|
|
}
|
|
|
|
if pair[0] == "" {
|
|
zap.L().Sugar().Fatalln("Invalid basic auth credentials. Reason: username must not be blank")
|
|
}
|
|
|
|
if pair[1] == "" {
|
|
zap.L().Sugar().Fatalln("Invalid basic auth credentials. Reason: password must not be blank")
|
|
}
|
|
|
|
basicAuthCredentials[pair[0]] = pair[1]
|
|
}
|
|
|
|
return basicAuthCredentials
|
|
}
|