Deploying a java app with shellscript through SSH - simple and efficient

deploy_app.sh

#!/bin/bash

set -e # Exit script immediately on first error.
#set -x # Print commands and their arguments as they are executed.

# generate war file with ant or gradle or whatever you want
ant war

# upload the generated war file to the web server
scp -P 5122 target/war/MyApp-SNAPSHOT.war [email protected]:~/MyApp.war
 
# deploy the uploded war file in tomcat
ssh -p 5122 [email protected] 'bash -s' <<'ENDSSH'
pwd
tomcat_home/bin/shutdown.sh
sleep 5
rm -rf tomcat_home/webapps/MyApp
rm -rf tomcat_home/webapps/MyApp.war
cp MyApp.war tomcat_home/webapps
tomcat_home/bin/startup.sh
ENDSSH