CODEWITHSUNDEEP
docker
letthefireflieslive
letthefireflieslive

Reputation: 12684

Run a new container based on currently running container

I am able to run a container by running

docker run --name nginx-base -p 81:81 -d nginx

How do I use this same container but run it in port 80 and add a volume link to it such as:

docker start nginx-base -p 80:80 -v mydomain:/etc/nginx/site-available/mydomain

Upvotes: 0

Views: 91

Answers (3)

shizhz
shizhz

Reputation: 12531

No, you can only use docker run to start a new container. And of course, with another container name.

Upvotes: 1

user2915097
user2915097

Reputation: 32216

You can use the same image to launch another container on the port 80, with such a command

docker run --name nginx80 -p 80:80 -d nginx

as long as you use different ports and names for your container, you can go on, such as

docker run --name nginx83 -p 83:83 -d nginx

Consider that an image can't be updated (we will forget docker commit), but the Dockerfile, the way to recreate an updated/modified image, helps you create easily another image.

The doc for docker commit if needed

https://docs.docker.com/engine/reference/commandline/commit/

You can have a reference Dockerfile, so you build your image with such a command

docker build -t myuser/myproject:0.1 .

and a modified Dockerfile, such as Dockerfile_mod1, and you build another image using this Dockerfile, with a command such as

docker build -t myuser/mymodifiedproject:0.12 -f Dockerfile_mod1 .

but you should have a Dockerfile and rebuild as often as needed a modifed image.

Upvotes: 1

Frenus
Frenus

Reputation: 830

docker run --name nginx-base -p 80:80 -v mydomain:/etc/nginx/site-available/mydomain -d nginx

Upvotes: 0

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