By default, if I issue command: sudo docker pull ruby:2.2.1 it will pull from the docker.io offical site by default. Pulling repository docker.io/library/ruby How do I change it to my private registry. That means if I issue sudo docker pull ruby:2.2.1 it will pull from my own private registry, the output is something like: Pulling … Read more
I am using RUN instruction within a Dockerfile to install a rpm RUN yum -y install samplerpm-2.3 However, I want to pass the value “2.3” as an argument. My RUN instruction should look something like: RUN yum -y install samplerpm-$arg where $arg=2.3 1 Answer 1
I run a private docker registry, and I want to delete all images but the latest from a repository. I don’t want to delete the entire repository, just some of the images inside it. The API docs don’t mention a way to do this, but surely it’s possible? 15 Answers 15
I’m using docker registry v1 and I’m interested in migrating to the newer version, v2. But I need some way to get a list of images present on registry; for example with registry v1 I can execute a GET request to http://myregistry:5000/v1/search? and the result is: { “num_results”: 2, “query”: “”, “results”: [ { “description”: … Read more
I’m wondering where Docker’s images are exactly stored to in my local host machine. Can I share my Docker-Image without using the Docker-Hub or a Dockerfile but the ‘real’ Docker-Image? And what is exactly happening when I ‘push’ my Docker-Image to Docker-Hub? 4 Answers 4
I have a docker image tagged as me/my-image, and I have a private repo on the dockerhub named me-private. When I push my me/my-image, I end up always hitting the public repo. What is the exact syntax to specifically push my image to my private repo? 13 s 13 You need to tag your image … Read more
