Add support for setting the receiver proxy flags via environment variables (#5)

Author: bakhtin

cmd/receiver-proxy/main.go

@@ -21,93 +21,110 @@ import (
 var flags []cli.Flag = []cli.Flag{
 	// input and output
 	&cli.StringFlag{
-		Name:  "local-listen-addr",
-		Value: "127.0.0.1:443",
-		Usage: "address to listen on for orderflow proxy API for external users and local operator",
+		Name:    "local-listen-addr",
+		Value:   "127.0.0.1:443",
+		Usage:   "address to listen on for orderflow proxy API for external users and local operator",
+		EnvVars: []string{"LOCAL_LISTEN_ADDR"},
 	},
 	&cli.StringFlag{
-		Name:  "public-listen-addr",
-		Value: "127.0.0.1:5544",
-		Usage: "address to listen on for orderflow proxy API for other network participants",
+		Name:    "public-listen-addr",
+		Value:   "127.0.0.1:5544",
+		Usage:   "address to listen on for orderflow proxy API for other network participants",
+		EnvVars: []string{"PUBLIC_LISTEN_ADDR"},
 	},
 	&cli.StringFlag{
-		Name:  "cert-listen-addr",
-		Value: "127.0.0.1:14727",
-		Usage: "address to listen on for orderflow proxy serving its SSL certificate on /cert",
+		Name:    "cert-listen-addr",
+		Value:   "127.0.0.1:14727",
+		Usage:   "address to listen on for orderflow proxy serving its SSL certificate on /cert",
+		EnvVars: []string{"CERT_LISTEN_ADDR"},
 	},
 	&cli.StringFlag{
-		Name:  "builder-endpoint",
-		Value: "http://127.0.0.1:8645",
-		Usage: "address to send local ordeflow to",
+		Name:    "builder-endpoint",
+		Value:   "http://127.0.0.1:8645",
+		Usage:   "address to send local ordeflow to",
+		EnvVars: []string{"BUILDER_ENDPOINT"},
 	},
 	&cli.StringFlag{
-		Name:  "rpc-endpoint",
-		Value: "http://127.0.0.1:8545",
-		Usage: "address of the node RPC that supports eth_blockNumber",
+		Name:    "rpc-endpoint",
+		Value:   "http://127.0.0.1:8545",
+		Usage:   "address of the node RPC that supports eth_blockNumber",
+		EnvVars: []string{"RPC_ENDPOINT"},
 	},
 	&cli.StringFlag{
-		Name:  "builder-confighub-endpoint",
-		Value: "http://127.0.0.1:14892",
-		Usage: "address of the builder config hub enpoint (directly or throught the cvm-proxy)",
+		Name:    "builder-confighub-endpoint",
+		Value:   "http://127.0.0.1:14892",
+		Usage:   "address of the builder config hub enpoint (directly or throught the cvm-proxy)",
+		EnvVars: []string{"BUILDER_CONFIGHUB_ENDPOINT"},
 	},
 	&cli.StringFlag{
-		Name:  "orderflow-archive-endpoint",
-		Value: "http://127.0.0.1:14893",
-		Usage: "address of the ordreflow archive endpoint (block-processor)",
+		Name:    "orderflow-archive-endpoint",
+		Value:   "http://127.0.0.1:14893",
+		Usage:   "address of the ordreflow archive endpoint (block-processor)",
+		EnvVars: []string{"ORDERFLOW_ARCHIVE_ENDPOINT"},
 	},
 	&cli.StringFlag{
-		Name:  "flashbots-orderflow-signer-address",
-		Value: "0x5015Fa72E34f75A9eC64f44a4Fcf0837919D1bB7",
-		Usage: "ordreflow from Flashbots will be signed with this address",
+		Name:    "flashbots-orderflow-signer-address",
+		Value:   "0x5015Fa72E34f75A9eC64f44a4Fcf0837919D1bB7",
+		Usage:   "ordreflow from Flashbots will be signed with this address",
+		EnvVars: []string{"FLASHBOTS_ORDERFLOW_SIGNER_ADDRESS"},
 	},
 	&cli.Int64Flag{
-		Name:  "max-request-body-size-bytes",
-		Value: 0,
-		Usage: "Maximum size of the request body, if 0 default will be used",
+		Name:    "max-request-body-size-bytes",
+		Value:   0,
+		Usage:   "Maximum size of the request body, if 0 default will be used",
+		EnvVars: []string{"MAX_REQUEST_BODY_SIZE_BYTES"},
 	},
 
 	// certificate config
 	&cli.DurationFlag{
-		Name:  "cert-duration",
-		Value: time.Hour * 24 * 365,
-		Usage: "generated certificate duration",
+		Name:    "cert-duration",
+		Value:   time.Hour * 24 * 365,
+		Usage:   "generated certificate duration",
+		EnvVars: []string{"CERT_DURATION"},
 	},
 	&cli.StringSliceFlag{
-		Name:  "cert-hosts",
-		Value: cli.NewStringSlice("127.0.0.1", "localhost"),
-		Usage: "generated certificate hosts",
+		Name:    "cert-hosts",
+		Value:   cli.NewStringSlice("127.0.0.1", "localhost"),
+		Usage:   "generated certificate hosts",
+		EnvVars: []string{"CERT_HOSTS"},
 	},
 
 	// logging, metrics and debug
 	&cli.StringFlag{
-		Name:  "metrics-addr",
-		Value: "127.0.0.1:8090",
-		Usage: "address to listen on for Prometheus metrics (metrics are served on $metrics-addr/metrics)",
+		Name:    "metrics-addr",
+		Value:   "127.0.0.1:8090",
+		Usage:   "address to listen on for Prometheus metrics (metrics are served on $metrics-addr/metrics)",
+		EnvVars: []string{"METRICS_ADDR"},
 	},
 	&cli.BoolFlag{
-		Name:  "log-json",
-		Value: false,
-		Usage: "log in JSON format",
+		Name:    "log-json",
+		Value:   false,
+		Usage:   "log in JSON format",
+		EnvVars: []string{"LOG_JSON"},
 	},
 	&cli.BoolFlag{
-		Name:  "log-debug",
-		Value: false,
-		Usage: "log debug messages",
+		Name:    "log-debug",
+		Value:   false,
+		Usage:   "log debug messages",
+		EnvVars: []string{"LOG_DEBUG"},
 	},
 	&cli.BoolFlag{
-		Name:  "log-uid",
-		Value: false,
-		Usage: "generate a uuid and add to all log messages",
+		Name:    "log-uid",
+		Value:   false,
+		Usage:   "generate a uuid and add to all log messages",
+		EnvVars: []string{"LOG_UID"},
 	},
 	&cli.StringFlag{
-		Name:  "log-service",
-		Value: "tdx-orderflow-proxy-receiver",
-		Usage: "add 'service' tag to logs",
+		Name:    "log-service",
+		Value:   "tdx-orderflow-proxy-receiver",
+		Usage:   "add 'service' tag to logs",
+		EnvVars: []string{"LOG_SERVICE"},
 	},
 	&cli.BoolFlag{
-		Name:  "pprof",
-		Value: false,
-		Usage: "enable pprof debug endpoint (pprof is served on $metrics-addr/debug/pprof/*)",
+		Name:    "pprof",
+		Value:   false,
+		Usage:   "enable pprof debug endpoint (pprof is served on $metrics-addr/debug/pprof/*)",
+		EnvVars: []string{"PPROF"},
 	},
 }