Here is my problem:
I have a task running a Docker image on Amazon ECS but I would like to make a new Docker image from the running instance of the container.
I see the id of the instance on Amazon ECS; I have made an AMI but I would like to make a new docker image that I can pull from Amazon.
Any ideas?
Regards and thanks.
To create a image from container execute the command below:
docker commit container_id imagename
This can be easily done by using "docker commit".
Let's say you need an image, based on the latest from NGINX, with PHP, build-essential, and nano installed. I'll walk you through the process of pulling the image, running the container, accessing the container, adding the software, and committing the changes to a new image that can then be easily used as a base for your dev containers.
Pulling the image and running the container:
sudo docker pull nginx
sudo docker run -it --name nginx-template-base -p 8080:80 nginx
Modifying the container:
apt-get install nano
apt-get install php5
Commit the changes:
sudo docker commit CONTAINER_ID nginx-template
The newly created template is ready and you can run using:
sudo docker run -it --name nginx-dev -p 8080:80 nginx-template