05-27-2021, 07:02 PM
Thanks VERY much for the tutorial @LightDestory. So for someone who hasn't worked with Docker before (apologies in advance if the questions are too basic). I have some questions to ask from an experienced user:
1. Is it possible to dockerize/containerize an existing application? I.e. can I create docker on a system that already has an application running with Debian, and then somehow move the application into a container? Or is it better to start the container from scratch with a freshly installed OS?
2. Can one have docker with containers PLUS other applications from the command line, or does one have to install docker from scratch on a fresh installation of an OS and then following that all applications need to be run in separate containers.
3. How safe and secure is Docker itself? I get a feeling of it being a panel of sorts where containers are attached and detached.
4. What is the difference between a container and backup? I get it that a container is a shell of sorts in which the software associated with the application has been captured as well, so when you transport the container the software doesn't need to be reinstalled again. But for me it has the same feel as a backup plugin of WordPress, except Docker container is possibly more secure.
1. Is it possible to dockerize/containerize an existing application? I.e. can I create docker on a system that already has an application running with Debian, and then somehow move the application into a container? Or is it better to start the container from scratch with a freshly installed OS?
2. Can one have docker with containers PLUS other applications from the command line, or does one have to install docker from scratch on a fresh installation of an OS and then following that all applications need to be run in separate containers.
3. How safe and secure is Docker itself? I get a feeling of it being a panel of sorts where containers are attached and detached.
4. What is the difference between a container and backup? I get it that a container is a shell of sorts in which the software associated with the application has been captured as well, so when you transport the container the software doesn't need to be reinstalled again. But for me it has the same feel as a backup plugin of WordPress, except Docker container is possibly more secure.
