sample Jenkins pipeline with slack notifications (slack plugin)

pipeline

pipeline {
  
  agent any

  stages {
    stage("Deploy Config"){

      steps {

         slackSend color: "#15FFE9", message: """Jenkins is deploying Config to:
          env/host: ${ENVIRONMENT}${env.HOST}
          branch: [${env.BRANCH}]
          build# ${env.BUILD_NUMBER}
          """
     
          echo "Deploying Config - environment: ${ENVIRONMENT}, host: ${HOST}, branch: ${BRANCH}" 
          sh '''#!/bin/bash
       
            your bash code here

        '''   
      }
    }
  }
  
  post { 
    success { 
      slackSend color: "#54EC4F", message: """Jenkins DONE deploying Config to
      env/host: ${ENVIRONMENT}${env.HOST}
      branch: [${env.BRANCH}]
      build# ${env.BUILD_NUMBER}
      """
    }

    failure { 
      slackSend color: "#FF0000", message: """Jenkins ERROR deploying Config to
      env/host: ${ENVIRONMENT}${env.HOST}
      branch: [${env.BRANCH}]
      build# ${env.BUILD_NUMBER}
      """
    }
  }
}