Hello,
Can permanent changes be made in a container? For example, install a program in the container and after turning the container off and on, that program is not deleted.
Cheers.
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Yes you can… but only in the image (see the Dockerfile) but never ever in a container. (Sorry for the bad joke)
You can code the installation in a Dockerfile or… everytime you start the container with some automation (I think here to a entrypoint.sh script fired everytime the container is created).
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Hello,
Thank you so much for your reply.
I’ve already seen something like RUN docker-php-ext-install mysqli pdo pdo_mysql in the Dockerfile. Is it not possible to include this command in the YAML file?
Fast answer : no.
You have to do this in an image or as said everytime you run the container (not productive at all)
Hi,
Thanks again.
I think I can simulate it using the command command:
command: apt install docker-php-ext-install mysqli pdo pdo_mysql
By reading Compose file version 3 reference | Docker Docs, this is not, at all, the same thing.
Imagine the default command is, just “/bin/sh” so when I’ll run your container, “by default”, I’ll obtain a Linux console.
here, you’re overriding that “default command” and mention, nope, you should install a few things then … exit.
Unless I’m saying an error, just try your idea and tell us what happens then.
For me, you’ll never get a shell here (except your override once more the default command using CLI flags)