docker max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

To increase the `vm.max_map_count` value specifically for Docker, you can follow these steps:

1. Open a terminal and log in as the root user or use sudo for the following commands.
2. Create or edit the Docker daemon configuration file using a text editor such as vi or nano:

   sudo vi /etc/docker/daemon.json

3. Add the following configuration to the file:

   {
     "default-ulimits": {
       "memlock": {
         "Name": "memlock",
         "Hard": -1,
         "Soft": -1
       }
     }
   }

This configuration sets the memlock limit to unlimited, which is required to increase `vm.max_map_count` for Docker.
4. Save and exit the file.
5. Restart the Docker daemon to apply the changes:

   sudo systemctl restart docker

Once Docker restarts, it should have the increased `vm.max_map_count` value. You can verify this by running:

docker run --rm busybox sysctl vm.max_map_count

It should now show a value of at least `262144`.