add configurable RTR server

README.md

@@ -64,6 +64,7 @@ bcg uses RFC 8092 BGP Large Communities
 | router-id | Router ID of this router                                                                                      |
 | prefixes  | List of prefixes to originate                                                                                 |
 | irrdb     | IRRDB to query prefix sets from (default is rr.ntt.net which includes generated route objects from RPKI ROAs) |
+| rtrserver | IP address or hostname of RPKI RTR server (default is 127.0.0.1)                                              |
 | peers     | Map of name to peer (see below)                                                                               |
 
 #### Peer Configuration Options

parser.go

@@ -47,11 +47,12 @@ type Peer struct {
 
 // Config contains global configuration about this router and BCG instance
 type Config struct {
-	Asn      uint32           `yaml:"asn" toml:"ASN" json:"asn"`
-	RouterId string           `yaml:"router-id" toml:"Router-ID" json:"router-id"`
-	Prefixes []string         `yaml:"prefixes" toml:"Prefixes" json:"prefixes"`
-	Peers    map[string]*Peer `yaml:"peers" toml:"Peers" json:"peers"`
-	IrrDb    string           `yaml:"irrdb" toml:"IRRDB" json:"irrdb"`
+	Asn       uint32           `yaml:"asn" toml:"ASN" json:"asn"`
+	RouterId  string           `yaml:"router-id" toml:"Router-ID" json:"router-id"`
+	Prefixes  []string         `yaml:"prefixes" toml:"Prefixes" json:"prefixes"`
+	Peers     map[string]*Peer `yaml:"peers" toml:"Peers" json:"peers"`
+	IrrDb     string           `yaml:"irrdb" toml:"IRRDB" json:"irrdb"`
+	RtrServer string           `yaml:"rtrserver" toml:"RPKIServer" json:"rtrserver"`
 }
 
 // PeerTemplate contains a peer-specific config sent to template
@@ -270,6 +271,12 @@ func main() {
 	}
 	log.Infof("Using IRRDB server %s", config.IrrDb)
 
+	// Set default RTR server
+	if config.RtrServer == "" {
+		config.RtrServer = "127.0.0.1"
+	}
+	log.Infof("Using IRRDB server %s", config.IrrDb)
+
 	// Validate Router ID in dotted quad format
 	if net.ParseIP(config.RouterId).To4() == nil {
 		log.Fatalf("Router ID %s is not in valid dotted quad notation", config.RouterId)

templates/global.tmpl

@@ -91,7 +91,7 @@ protocol rpki {
   roa6 { table rpki6; };
 
   transport tcp;
-  remote "127.0.0.1" port 8282;
+  remote "{{ .Config.RtrServer }}" port 8282;
 
   retry keep 90;
   refresh keep 900;