• Subhasish Sahu

How to deploy SpringBoot App on AWS EC2 instance and retrieve key/value pair from AWS Secret Manager

Updated: May 25, 2020


Pre - requisite :


  1. AWS Account

  2. Java 1.8 and above

  3. Putty

  4. WinSCP

  5. IntelliJ Idea IDE


Logon to AWS site ( https://console.aws.amazon.com/ )


Select EC2 instance



Click on Launch Instance












Download and keep it in a proper local folder




Your Instance is created



Create Secret Manager in AWS


Select Secret Manager from Services in AWS



Click on Store a New Secret











Connect to AWS Linux


Download Putty : https://www.putty.org/


Open PuttyGen from you taskbar and load the key pair name downloaded during creation of EC2 instance.








Open Putty




Enter your public DNS name in Host  Name(or IP Address) Text Box which you will get fro EC2 instance as below




After entering the Host name, we need to load the private ppk key







If you don't assign/allow SSH port in your EC2 instance ,you will get below error:


For this click on security group as below in your EC2 instance newly created





Now load the saved aws session from putty and you will be able to login now.



Login as ec2-user






After successfully updation, login as super user

Install java 1.8



After successfully updation, you will be able to see latest java version




Open any IDE and create a sample spring boot application .

SourceCode : https://github.com/subhasish23sahu/springboot-aws-secret-manager-master


Download sourcecode and build it



Region can be determined from AWS site




To transfer the jar(application) we can use WINSCP





Give read and write option to the jar : chmod 777 *



If you get bellow error:


Then Attach an IAM role to the EC2 instance




subhasishdemo is the IAM created

Go back to EC2 Instance



Allow port in Security Group--> Inbound Rules



Go back to putty  and run springboot application




URL :   <IPv4 Public IP>:<port>/<resourcepath>


Domain name can be formed using IPv4 Public IP mentioned in EC2 instance



Once you hit the url, you will be able to see the key/value retrieved from Secret Manager.





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