How to backup journald daily?

 #!/bin/bash

# Set the backup directory

BACKUP_DIR=/logs

# Create the backup directory if it doesn't exist

mkdir -p $BACKUP_DIR

# Get the current date in the format "YYYY-MM-DD"

DATE=$(date +%Y-%m-%d)

PREV_DATE=$(date -u -d "1 day ago 00:00:01" +"%Y-%m-%d %H:%M:%S")

# Loop through all running containers and backup their logs

for container in $(docker ps --format '{{.Names}}'); do

  journalctl -b CONTAINER_NAME=$container --since "$PREV_DATE" >> $BACKUP_DIR/$container-$DATE.log

done

---

You also need to set the /etc/docker/daemon and restart the docker

{

    "default-runtime": "nvidia",

    "runtimes": {

        "nvidia": {

            "path": "nvidia-container-runtime",

            "runtimeArgs": []

        }

    },

    "log-driver": "journald"

}