Reboot Woes: How to Automatically Import a Self-Signed Certificate into the JVM
We’ve all been there — you’ve set up a service on your server, secured it with a self-signed certificate, and everything works smoothly. That is until the server is unexpectedly rebooted, and your self-signed certificate suddenly disappears. Faced with this situation one too many times, I decided to write about it. In this blog, I’ll explore how to create a shell script that automatically checks if the certificate exists in the trusstore or not and import it back into the Java Virtual Machine (JVM) truststore whenever the server restarts. By the end of this guide, you’ll have a robust solution to ensure your applications continue to run securely, even after an unexpected reboot.
Let’s explore this in more detail ✌️
Prerequisites:
1- Install Java JDK or openjdk.
2- Keytool install.
3- AWS or Google Cloud console access to create the VM.
4- Basic knowledge of writing a shell script.
Step #1: Creating the Linux VM
If you have already a running Linux VM, you can ignore this step. You can create the VM in any Cloud provider, in this demo I’ll use Google Cloud Platform (GCP).
