What is .build-deps in the following command? I can’t find an explanation in the Alpine docs. Is this a file that is predefined? Is see this referenced in many Dockerfiles. RUN apk add –no-cache –virtual .build-deps \ gcc \ freetype-dev \ musl-dev RUN pip install –no-cache-dir <packages_that_require_gcc…> \ RUN apk del .build-deps 2 Answers 2
Supposed I have a Docker container that I want to run, then I can call $ docker run … and everything is fine. Is there a built-in way to run a container in a way that it will be restarted automatically, if the system crashes and reboots? If so, is this also available in Docker … Read more
I want to build image via docker-compose and set specific tag to it. Documentation says: Compose will build and tag it with a generated name, and use that image thereafter. But I can’t find a way to specify tag and for built images I always see ‘latest’ tag. 6 Answers 6
Inside my Dockerfile: ENV PROJECTNAME mytestwebsite CMD [“django-admin”, “startproject”, “$PROJECTNAME”] Error: CommandError: ‘$PROJECTNAME’ is not a valid project name What is the quickest workaround here? Does Docker have any plan to “fix” or introduce this functionality in later versions of Docker? NOTE: If I remove the CMD line from the Docker file and then run … Read more
I have a Dockerfile to install MySQL server in a container, which I then start like this: sudo docker run -t -i 09d18b9a12be /bin/bash But the MySQL service does not start automatically, I have to manually run (from within the container): service mysql start How do I automatically start the MySQL service when I run … Read more
I have installed docker on windows 10 pro. I am facing an issue while running the following command in git-bash. docker-compose up -d –build and got following error. E: gnupg, gnupg2 and gnupg1 do not seem to be installed, but one of them is required for this operation (23) Failed writing body Error executing command, … Read more
I am trying to understand the actual reason for mounting docker.sock in docker-compose.yml file. Is it for auto-discovery? volumes: – /var/run/docker.sock:/var/run/docker.sock 4 Answers 4
Is there any command which can combine the docker stop and docker rm command together ? Each time I want to delete a running container, I need to execute 2 commands sequentially, I wonder if there is a combined command can simplify this process. docker stop CONTAINER_ID docker rm CONTATINER_ID 11 Answers 11
On Ubuntu 14.04 (Trusty Tahr) I’m looking for a way to stop a running container and the only information I have is the image name that was used in the Docker run command. Is there a command to find all the matching running containers that match that image name and stop them? 20 Answers 20
I finally figured out how to get docker up and running. docker run –name my-forum-nodebb –link my-forum-redis:redis -p 80:80 -p 443:443 -p 4567:4567 -P -t -i nodebb/docker:ubuntu I linked it to a redis instance, cool. This is from scratch and I assume that when I created the redis instance docker run –name my-forum-redis -d -p … Read more
