Is my data stored permanently inside docker container

0 votes

Hi Guys,

I am new in docker. I launched one container to host my webserver. But is my data stored permanently inside docker?

Thank You

Apr 6, 2020 in Docker by akhtar
• 38,240 points
273 views

1 answer to this question.

0 votes

Hi@akhtar,

Yes, whatever you stored inside docker container is permanent. But one thing you should understand, difference between ephemeral and persistent storage. Let's discuss with an example.

Say, You have a webserver inside docker container. Everyday lots of data is uploaded in your server. Now if you shut down your container, your data will not erase from your container. You can start your container and check it.

But, after some days if you don't require that webserver than you will terminate that container and now your data is permanently gone. So, these types of storage is called ephemeral storage, that depends on OS.

But, if you terminate your container and this time you require that database, for that you have to use persistent storage. This types of storage will not depend on OS.

Hope these will clear your doubt regarding storage in docker.

Thank You

answered Apr 6, 2020 by MD
• 95,340 points

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