config

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 Go to latest Published: Nov 8, 2023 License: Apache-2.0 Imports: 0 Imported by: 0

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config

import "github.com/go-coldbrew/core/config"

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type Config

Config is the configuration for the Coldbrew server It is populated from environment variables and has sensible defaults for all fields so that you can just use it as is without any configuration The following environment variables are supported and can be used to override the defaults for the fields

type Config struct {
    // Host to listen on
    ListenHost string `envconfig:"LISTEN_HOST" default:"0.0.0.0"`
    // GRPC Port, defaults to 9090
    GRPCPort int `envconfig:"GRPC_PORT" default:"9090"`
    // HTTP Port, defaults to 9091
    HTTPPort int `envconfig:"HTTP_PORT" default:"9091"`
    // Name of the Application
    AppName string `envconfig:"APP_NAME" default:""`
    // Environment e.g. Production / Integration / Development
    Environment string `envconfig:"ENVIRONMENT" default:""`
    // LogLevel to print, default to info
    LogLevel string `envconfig:"LOG_LEVEL" default:"info"`
    // Should logs be emitted in json format, defaults to true
    JSONLogs bool `envconfig:"JSON_LOGS" default:"true"`
    // Should we disable swagger at /swagger/, defaults to false
    DisableSwagger bool `envconfig:"DISABLE_SWAGGER" default:"false"`
    // SwaggerURL is the URL at which swagger is served, defaults to /swagger/
    SwaggerURL string `envconfig:"SWAGGER_URL" default:"/swagger/"`
    // Should we disable go debug at /debug/, defaults to false
    DisableDebug bool `envconfig:"DISABLE_DEBUG" default:"false"`
    // Should we disable prometheus at /metrics, defaults to false
    DisablePormetheus bool `envconfig:"DISABLE_PROMETHEUS" default:"false"`
    // Enables grpc request histograms in prometheus reporting
    EnablePrometheusGRPCHistogram bool `envconfig:"ENABLE_PROMETHEUS_GRPC_HISTOGRAM" default:"true"`
    // The License key for NewRelic metrics reporting
    NewRelicLicenseKey string `envconfig:"NEW_RELIC_LICENSE_KEY" default:""`
    // Enable NewRelic Distributed Tracing
    NewRelicDistributedTracing bool `envconfig:"NEW_RELIC_DISTRIBUTED_TRACING" default:"true"`
    // Enable new relic opentelemetry
    NewRelicOpentelemetry bool `envconfig:"NEW_RELIC_OPENTELEMETRY" default:"true"`
    // Sampling ratio for NR opentelemetry
    NewRelicOpentelemetrySample float64 `envconfig:"NEW_RELIC_OPENTELEMETRY_SAMPLE" default:"0.2"`
    // The name of the application in NewRelic
    NewRelicAppname string `envconfig:"NEW_RELIC_APPNAME" default:""`
    // DSN for reporting errors to sentry
    SentryDSN string `envconfig:"SENTRY_DSN" default:""`
    // Name of this release
    ReleaseName string `envconfig:"RELEASE_NAME" default:""`
    // When set disable the GRPC reflecttion server which can be useful for tools like grpccurl, default false
    DisableGRPCReflection bool `envconfig:"DISABLE_GRPC_REFLECTION" default:"false"`
    // Trace header, when this HTTP header is present CB will add the value to log/trace contexts
    TraceHeaderName string `envconfig:"TRACE_HEADER_NAME" default:"x-trace-id"`
    // When we match this HTTP header prefix, we forward append the values to grpc metadata
    HTTPHeaderPrefix string `envconfig:"HTTP_HEADER_PREFIX" default:""`
    // Should we log calls to GRPC reflection API, defaults to true
    DoNotLogGRPCReflection bool `envconfig:"DO_NOT_LOG_GRPC_REFLECTION" default:"true"`
    // Should we disable signal handler, defaults to false and CB handles all SIG_INT/SIG_TERM
    DisableSignalHandler bool `envconfig:"DISABLE_SIGNAL_HANDLER" default:"false"`
    // Duration for which CB will wait for calls to complete before shutting down the server
    ShutdownDurationInSeconds int `envconfig:"SHUTDOWN_DURATION_IN_SECONDS" default:"15"`
    // Duration for which CB will wait for healthcheck fail to be propagated before initiating server shutdown
    // once shutdown is initiated all new calls will fail
    HealthcheckWaitDurationInSeconds int `envconfig:"GRPC_GRACEFUL_DURATION_IN_SECONDS" default:"7"`
    // UseJSONBuiltinMarshaller switches marshaler for application/json to encoding/json
    UseJSONBuiltinMarshaller bool `envconfig:"USE_JSON_BUILTIN_MARSHALLER" default:"false"`
    // JSONBuiltinMarshallerMime specifies the Content-Type/Accept header for use by the json builtin marshaler
    JSONBuiltinMarshallerMime string `envconfig:"JSON_BUILTIN_MARSHALLER_MIME" default:"application/json"`
    // MaxConnectionIdle is a duration for the amount of time after which an
    // idle connection would be closed by sending a GoAway. Idleness duration is
    // defined since the most recent time the number of outstanding RPCs became
    // zero or the connection establishment.
    // https://github.com/grpc/grpc-go/blob/v1.48.0/keepalive/keepalive.go#L50
    GRPCServerMaxConnectionIdleInSeconds int `envconfig:"GRPC_SERVER_MAX_CONNECTION_IDLE_IN_SECONDS"`
    // MaxConnectionAge is a duration for the maximum amount of time a
    // connection may exist before it will be closed by sending a GoAway. A
    // random jitter of +/-10% will be added to MaxConnectionAge to spread out
    // connection storms.
    // https://github.com/grpc/grpc-go/blob/v1.48.0/keepalive/keepalive.go#L50
    GRPCServerMaxConnectionAgeInSeconds int `envconfig:"GRPC_SERVER_MAX_CONNECTION_AGE_IN_SECONDS"`
    // MaxConnectionAgeGrace is an additive period after MaxConnectionAge after
    // which the connection will be forcibly closed.
    // https://github.com/grpc/grpc-go/blob/v1.48.0/keepalive/keepalive.go#L50
    GRPCServerMaxConnectionAgeGraceInSeconds int `envconfig:"GRPC_SERVER_MAX_CONNECTION_AGE_GRACE_IN_SECONDS"`

    // DisableAutoMaxProcs disables the automatic setting of GOMAXPROCS
    // This is useful when running in a container where the container runtime sets GOMAXPROCS for you already
    DisableAutoMaxProcs bool `envconfig:"DISABLE_AUTO_MAX_PROCS" default:"false"`
}

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Config 

type Config struct {
	// Host to listen on
	ListenHost string `envconfig:"LISTEN_HOST" default:"0.0.0.0"`
	// GRPC Port, defaults to 9090
	GRPCPort int `envconfig:"GRPC_PORT" default:"9090"`
	// HTTP Port, defaults to 9091
	HTTPPort int `envconfig:"HTTP_PORT" default:"9091"`
	// Name of the Application
	AppName string `envconfig:"APP_NAME" default:""`
	// Environment e.g. Production / Integration / Development
	Environment string `envconfig:"ENVIRONMENT" default:""`
	// LogLevel to print, default to info
	LogLevel string `envconfig:"LOG_LEVEL" default:"info"`
	// Should logs be emitted in json format, defaults to true
	JSONLogs bool `envconfig:"JSON_LOGS" default:"true"`
	// Should we disable swagger at /swagger/, defaults to false
	DisableSwagger bool `envconfig:"DISABLE_SWAGGER" default:"false"`
	// SwaggerURL is the URL at which swagger is served, defaults to /swagger/
	SwaggerURL string `envconfig:"SWAGGER_URL" default:"/swagger/"`
	// Should we disable go debug at /debug/, defaults to false
	DisableDebug bool `envconfig:"DISABLE_DEBUG" default:"false"`
	// Should we disable prometheus at /metrics, defaults to false
	DisablePormetheus bool `envconfig:"DISABLE_PROMETHEUS" default:"false"`
	// Enables grpc request histograms in prometheus reporting
	EnablePrometheusGRPCHistogram bool `envconfig:"ENABLE_PROMETHEUS_GRPC_HISTOGRAM" default:"true"`
	// The License key for NewRelic metrics reporting
	NewRelicLicenseKey string `envconfig:"NEW_RELIC_LICENSE_KEY" default:""`
	// Enable NewRelic Distributed Tracing
	NewRelicDistributedTracing bool `envconfig:"NEW_RELIC_DISTRIBUTED_TRACING" default:"true"`
	// Enable new relic opentelemetry
	NewRelicOpentelemetry bool `envconfig:"NEW_RELIC_OPENTELEMETRY" default:"true"`
	// Sampling ratio for NR opentelemetry
	NewRelicOpentelemetrySample float64 `envconfig:"NEW_RELIC_OPENTELEMETRY_SAMPLE" default:"0.2"`
	// The name of the application in NewRelic
	NewRelicAppname string `envconfig:"NEW_RELIC_APPNAME" default:""`
	// DSN for reporting errors to sentry
	SentryDSN string `envconfig:"SENTRY_DSN" default:""`
	// Name of this release
	ReleaseName string `envconfig:"RELEASE_NAME" default:""`
	// When set disable the GRPC reflecttion server which can be useful for tools like grpccurl, default false
	DisableGRPCReflection bool `envconfig:"DISABLE_GRPC_REFLECTION" default:"false"`
	// Trace header, when this HTTP header is present CB will add the value to log/trace contexts
	TraceHeaderName string `envconfig:"TRACE_HEADER_NAME" default:"x-trace-id"`
	// When we match this HTTP header prefix, we forward append the values to grpc metadata
	HTTPHeaderPrefix string `envconfig:"HTTP_HEADER_PREFIX" default:""`
	// Should we log calls to GRPC reflection API, defaults to true
	DoNotLogGRPCReflection bool `envconfig:"DO_NOT_LOG_GRPC_REFLECTION" default:"true"`
	// Should we disable signal handler, defaults to false and CB handles all SIG_INT/SIG_TERM
	DisableSignalHandler bool `envconfig:"DISABLE_SIGNAL_HANDLER" default:"false"`
	// Duration for which CB will wait for calls to complete before shutting down the server
	ShutdownDurationInSeconds int `envconfig:"SHUTDOWN_DURATION_IN_SECONDS" default:"15"`
	// Duration for which CB will wait for healthcheck fail to be propagated before initiating server shutdown
	// once shutdown is initiated all new calls will fail
	HealthcheckWaitDurationInSeconds int `envconfig:"GRPC_GRACEFUL_DURATION_IN_SECONDS" default:"7"`
	// UseJSONBuiltinMarshaller switches marshaler for application/json to encoding/json
	UseJSONBuiltinMarshaller bool `envconfig:"USE_JSON_BUILTIN_MARSHALLER" default:"false"`
	// JSONBuiltinMarshallerMime specifies the Content-Type/Accept header for use by the json builtin marshaler
	JSONBuiltinMarshallerMime string `envconfig:"JSON_BUILTIN_MARSHALLER_MIME" default:"application/json"`
	// MaxConnectionIdle is a duration for the amount of time after which an
	// idle connection would be closed by sending a GoAway. Idleness duration is
	// defined since the most recent time the number of outstanding RPCs became
	// zero or the connection establishment.
	// https://github.com/grpc/grpc-go/blob/v1.48.0/keepalive/keepalive.go#L50
	GRPCServerMaxConnectionIdleInSeconds int `envconfig:"GRPC_SERVER_MAX_CONNECTION_IDLE_IN_SECONDS"`
	// MaxConnectionAge is a duration for the maximum amount of time a
	// connection may exist before it will be closed by sending a GoAway. A
	// random jitter of +/-10% will be added to MaxConnectionAge to spread out
	// connection storms.
	// https://github.com/grpc/grpc-go/blob/v1.48.0/keepalive/keepalive.go#L50
	GRPCServerMaxConnectionAgeInSeconds int `envconfig:"GRPC_SERVER_MAX_CONNECTION_AGE_IN_SECONDS"`
	// MaxConnectionAgeGrace is an additive period after MaxConnectionAge after
	// which the connection will be forcibly closed.
	// https://github.com/grpc/grpc-go/blob/v1.48.0/keepalive/keepalive.go#L50
	GRPCServerMaxConnectionAgeGraceInSeconds int `envconfig:"GRPC_SERVER_MAX_CONNECTION_AGE_GRACE_IN_SECONDS"`

	// DisableAutoMaxProcs disables the automatic setting of GOMAXPROCS
	// This is useful when running in a container where the container runtime sets GOMAXPROCS for you already
	DisableAutoMaxProcs bool `envconfig:"DISABLE_AUTO_MAX_PROCS" default:"false"`
}

Config is the configuration for the Coldbrew server It is populated from environment variables and has sensible defaults for all fields so that you can just use it as is without any configuration The following environment variables are supported and can be used to override the defaults for the fields

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