I am unable to specify CPU and memory limitation for services specified in version 3. With version 2 it works fine with mem_limit & cpu_shares parameters under the services. But it fails while using version 3, putting them under deploy section doesn’t seem worthy unless I am using swarm mode. Can somebody help? version: “3” … Read more
I have installed docker on CentOS 7 by running following commands, curl -sSL https://get.docker.com/ | sh systemctl enable docker && systemctl start docker docker run hello-world NOTE: helloworld runs correctly and no issues. however when I try to run docker-compose (docker-compose.yml exists and valid) it gives me the error on CentOS only (Windows version works … Read more
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’m using alpine (or an image that is based on Alpine) as the base image in my Dockerfile. Which instructions do I need to add to create a user? Eventually I’ll use this user to run the application I’ll place into the container so that the root user does not. 3 Answers 3
I installed Docker-Toolbox just now while following their webpage I started with Docker QuickStart Terminal and see following ## . ## ## ## == ## ## ## ## ## === /”””””””””””””””””\___/ === ~~~ {~~ ~~~~ ~~~ ~~~~ ~~~ ~ / ===- ~~~ \______ o __/ \ \ __/ \____\_______/ docker is configured to use the … Read more
I’ve just upgraded to Windows 10 Home May 2020, activated WSL2, and installed Docker Desktop. WSL2 must be installed in my system disk, which is a small SSD. I don’t want to fill it with docker images. How do I change the docker images path? I’d like to use a path in my big Windows … Read more
Last time I checked, Docker didn’t have any means to give container access to host serial or USB port. Is there a trick which allows doing that? 11 Answers 11
My question is related to this question on copying files from containers to hosts; I have a Dockerfile that fetches dependencies, compiles a build artifact from source, and runs an executable. I also want to copy the build artifact (in my case it’s a .zip produced by sbt dist in ‘../target/`, but I think this … Read more
This question already has answers here: docker – how do you disable auto-restart on a container? (8 answers) Closed 4 years ago. Docker starts a container on every system startup (debian) but I didn’t create a service to do so. How can I prevent docker from doing that? 4 Answers 4
I’m now trying to run a simple container with shell (/bin/bash) on a Kubernetes cluster. I thought that there was a way to keep a container running on a Docker container by using pseudo-tty and detach option (-td option on docker run command). For example, $ sudo docker run -td ubuntu:latest Is there an option … Read more
