added script for making docker-compose files

scripts/create_docker-compose_files/main.go

@@ -0,0 +1,107 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"text/template"
+)
+
+// generateEnv will generate the env.env file.
+func generateEnv(templateFile string, brokerAddress string) error {
+	tpl, err := template.ParseFiles(templateFile)
+	if err != nil {
+		return fmt.Errorf("error: parsing template file: %v, err: %v", templateFile, err)
+	}
+
+	data := struct {
+		BrokerAddressAndPort string
+	}{
+		BrokerAddressAndPort: brokerAddress,
+	}
+
+	fh, err := os.OpenFile("env.env", os.O_CREATE|os.O_TRUNC|os.O_RDWR, 0755)
+	if err != nil {
+		return fmt.Errorf("error: opening env.env for writing: %v, err: %v", templateFile, err)
+	}
+	defer fh.Close()
+
+	err = tpl.Execute(fh, data)
+	if err != nil {
+		return fmt.Errorf("error: exeuting template file: %v, err: %v", templateFile, err)
+	}
+
+	return nil
+}
+
+// generateDockerCompose will generate the docker-compose.yml file.
+func generateDockerCompose(templateFile string, imageAndVersion string, exposedProfilingPort string, exposedPrometheusPort string, exposedDataFolderPort string, exposedTcpListenerPort string, exposedHttpListenerPort string, nkeySeedFile string, socketFolder string) error {
+	tpl, err := template.ParseFiles(templateFile)
+	if err != nil {
+		return fmt.Errorf("error: parsing template file: %v, err: %v", templateFile, err)
+	}
+
+	data := struct {
+		ImageAndVersion         string
+		ExposedProfilingPort    string
+		ExposedPrometheusPort   string
+		ExposedDataFolderPort   string
+		ExposedTcpListenerPort  string
+		ExposedHttpListenerPort string
+		NkeySeedFile            string
+		SocketFolder            string
+	}{
+		ImageAndVersion:         imageAndVersion,
+		ExposedProfilingPort:    exposedProfilingPort,
+		ExposedPrometheusPort:   exposedPrometheusPort,
+		ExposedDataFolderPort:   exposedDataFolderPort,
+		ExposedTcpListenerPort:  exposedTcpListenerPort,
+		ExposedHttpListenerPort: exposedHttpListenerPort,
+		NkeySeedFile:            nkeySeedFile,
+		SocketFolder:            socketFolder,
+	}
+
+	fh, err := os.OpenFile("docker-compose.yml", os.O_CREATE|os.O_TRUNC|os.O_RDWR, 0755)
+	if err != nil {
+		return fmt.Errorf("error: opening docker-compose.yml for writing: %v, err: %v", templateFile, err)
+	}
+	defer fh.Close()
+
+	err = tpl.Execute(fh, data)
+	if err != nil {
+		return fmt.Errorf("error: exeuting template file: %v, err: %v", templateFile, err)
+	}
+
+	return nil
+}
+
+func main() {
+	brokerAddress := flag.String("brokerAddress", "", "the address:port of the broker to connect to")
+	imageAndVersion := flag.String("imageAndVersion", "", "The name:version of the docker image to use")
+	exposedProfilingPort := flag.String("exposedProfilingPort", "6666", "the address:port to expose")
+	exposedPrometheusPort := flag.String("exposedPrometheusPort", "2111", "the address:port to expose")
+	exposedDataFolderPort := flag.String("exposedDataFolderPort", "8090", "the address:port to expose")
+	exposedTcpListenerPort := flag.String("exposedTcpListenerPort", "8091", "the address:port to expose")
+	exposedHttpListenerPort := flag.String("exposedHttpListenerPort", "8092", "the address:port to expose")
+	nkeySeedFile := flag.String("nkeySeedFile", "/tmp/seed.txt", "the complete path of the seed file to mount")
+	socketFolder := flag.String("sockerFolder", "/tmp/tmp/", "the complete path of the socket folder to mount")
+	flag.Parse()
+
+	if *brokerAddress == "" {
+		log.Printf("error: -brokerAddress flag can not be empty\n")
+		return
+	}
+
+	err := generateEnv("template_env.env", *brokerAddress)
+	if err != nil {
+		log.Printf("%v\n", err)
+		return
+	}
+
+	err = generateDockerCompose("template_docker-compose.yml", *imageAndVersion, *exposedProfilingPort, *exposedPrometheusPort, *exposedDataFolderPort, *exposedTcpListenerPort, *exposedHttpListenerPort, *nkeySeedFile, *socketFolder)
+	if err != nil {
+		log.Printf("%v\n", err)
+		return
+	}
+}

scripts/create_docker-compose_files/template_docker-compose.yml

@@ -0,0 +1,26 @@
+version: "3.1"
+
+# docker run -it --rm -v '/home/bt/docker/steward/wireguard:/etc/wireguard' --env-file env.env steward:0.1.6
+
+services:
+  steward:
+    build: .
+    env_file:
+      - env.env
+    secrets:
+      - seed
+    image: {{.ImageAndVersion}}
+    restart: always
+    ports:
+      - "{{.ExposedProfilingPort}}:6666"
+      - "{{.ExposedPrometheusPort}}:2111"
+      - "{{.ExposedDataFolderPort}}:8090"
+      - "{{.ExposedTcpListenerPort}}:8091"
+      - "{{.ExposedHttpListenerPort}}:8092"
+    volumes:
+      # - {{.NkeySeedFile}}:/app/seed.txt
+      - {{.SocketFolder}}:/app/tmp/:rw
+
+secrets:
+  seed:
+    file: {{.NkeySeedFile}}

scripts/create_docker-compose_files/template_env.env

@@ -0,0 +1,29 @@
+CONFIG_FOLDER=./etc
+SOCKET_FOLDER=./tmp
+TCP_LISTENER=:8091
+HTTP_LISTENER=:8092
+DATABASE_FOLDER=./var/lib
+NODE_NAME=central
+BROKER_ADDRESS={{.BrokerAddressAndPort}}
+PROFILING_PORT=:6666
+PROM_HOST_AND_PORT=:2111
+DEFAULT_MESSAGE_TIMEOUT=10
+DEFAULT_MESSAGE_RETRIES=3
+ERROR_MESSAGE_RETRIES=10
+ERROR_MESSAGE_TIMEOUT=3
+SUBSCRIBERS_DATA_FOLDER=./data/
+EXPOSE_DATA_FOLDER=:8090
+CENTRAL_NODE_NAME=central
+ROOT_CA_PATH=""
+NKEY_SEED_FILE=/run/secrets/seed
+START_PUB_REQ_HELLO=60
+START_SUB_REQ_ERROR_LOG=true
+START_SUB_REQ_HELLO=true
+START_SUB_REQ_TO_FILE_APPEND=true
+START_SUB_REQ_TO_FILE=true
+START_SUB_REQ_PING=true
+START_SUB_REQ_PONG=true
+START_SUB_REQ_CLI_COMMAND=true
+START_SUB_REQ_TO_CONSOLE=true
+START_SUB_REQ_HTTP_GET=true
+START_SUB_REQ_TAIL_FILE=true