talbergs / bash-service-manager

Bash Script's for Service Manager

Bash Service Manager

Bash Script's for Service Manager

Create your custom service for development.

Test

docker compose run --rm test

Usage

1. Create your service script.
2. Define the configuration environment variables:
   • PID_FILE_PATH
   • LOG_FILE_PATH
3. Define the configuration variables:
   • Mandatory configuration variables:
     • $SERVICE_NAME
     • $SERVICE_CMD (array)
   • Optional configuration variables:
     • $SERVICE_WORK_DIR
     • $SERVICE_ON_START (array)
     • $SERVICE_ON_FINISH (array)
4. Copy services.sh content or import it.
5. Call serviceMenu function and pass the action as first parameter (ex: serviceMenu "$1").
6. Make your new service script executable: chmod a+x my-service-script.
7. Use it!

Configuration Environment Variables

PID_FILE_PATH

Configure the PID_FILE_PATH variable before import service.sh script, and define the PID file path.

LOG_FILE_PATH

Configure the LOG_FILE_PATH variable before import service.sh script, and define the LOG file path.

Configuration Variables

Mandatory Configuration Variables

SERVICE_NAME

This is the user friendly Service Name.

SERVICE_CMD (array variable)

This is the commands that you must execute to start your service.

Optional Configuration Variables

SERVICE_WORK_DIR

The working directory is set, where it must be located to execute the command.

SERVICE_ON_START (array variable)

Commands to execute before Service start.

If function exit code is not 0 (zero), the service will not started.

SERVICE_ON_FINISH (array variable)

Commands to execute after Service finish/exit.

servicesMenu function

Just call only this function to make everything work!

Actions

If it is an invalid action or empty action, you can see the help.

• start: Start the service.
• stop: Stop the service.
• restart: Restart the service. If the service is running, first call stop then call start.
• status: Get service status.
• tail: See all service output.
• run: Execute service command and exit (this action does not stop the service).
• debug: Stop service (if running) and run service command and exit.

Examples

Telegraf Service

telegraf.sh file:

#!/usr/bin/env bash

appDir=$(cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd)

. "$appDir/services.sh"

# Friendly service name (mandatory)
SERVICE_NAME="telegraf"
# Command to run (mandatory, array variable)
SERVICE_CMD=(./telegraf --config telegraf.conf)
# Working Directory (optional)
SERVICE_WORK_DIR="$appDir"
# On start (optional, array variable)
#SERVICE_ON_START=()
# On finish (optional, array variable)
#SERVICE_ON_FINISH=()

export LOG_FILE_PATH="$SERVICE_NAME.log"
export PID_FILE_PATH="$SERVICE_NAME.pid"

serviceMenu "$1"

In console:

$ telegraf.sh status
$ telegraf.sh restart

Custom Service

my-service file:

#!/usr/bin/env bash

export PID_FILE_PATH="my-service.pid"
export LOG_FILE_PATH="my-service.log"

. ./services.sh

# Friendly service name (mandatory)
SERVICE_NAME="Example Service"
# Command to run (mandatory, array variable)
SERVICE_CMD=(ping 1.1.1.1)
# Working Directory (optional)
#SERVICE_WORK_DIR=
# On start (optional, array variable)
#SERVICE_ON_START=()
# On finish (optional, array variable)
#SERVICE_ON_FINISH=()

serviceMenu "$1"