Introduction: Docker Volume Backup Became Serious When My Redis Data Vanished Last month, when a Redis container running on my own VPS suddenly crashed, all my data evaporated. The incident happened on April 28th, around 4:00 AM. It was just a simple test environment, but still annoying because that Redis instance held temporary cache data for one of my side products. At that moment, I realized I needed to take Docker Volume backup more seriously. This is a situation that can happen to anyone running things on their own VPS. While Docker containers are ephemeral, the data they contain is expected to be persistent. This is where Docker Volumes come into play, and a robust Docker Volume backup strategy is essential to eliminate the risk of data loss. In this post, I will share what I learned and the practical solutions I implemented during this process.…