Questions tagged [docker]
Docker - An open platform for distributed applications for developers and sysadmins.
1,918
questions
250
votes
15
answers
480k
views
How can I reduce the consumption of the `vmmem` process?
I installed docker on windows home which uses WSL2 as a backend. However, since doing this a process called vmmem seems to be consistently consuming a lot of computational resources. I ran docker stop ...
- 3,266
217
votes
6
answers
421k
views
How to install a specific package version in Alpine?
I have a Dockerfile to build a Docker image that is based on Alpine Linux. Now I need to install a package as part of this Dockerfile.
Currently I have:
RUN apk update && \
apk upgrade &...
- 2,479
165
votes
4
answers
106k
views
What's the difference between `docker stop` and `docker kill`?
What's the difference between docker stop and docker kill?
As far as I know, both will stop a running container. Is it that docker stop attempts to stop the process run inside the container in the ...
- 1,793
131
votes
8
answers
213k
views
docker-compose up/down just one container
I have not been able to find a way to up/down just one container in a docker-compose.yml file. I can off-course start and stop a single container, but I cannot make changes to a containers ...
- 2,058
105
votes
3
answers
100k
views
Docker containers have their own kernel or not?
I see that a lot of docker images in the docker repository are made with an Ubuntu base.
What does that mean? Does each container bundle a stripped down version of the Linux kernel?
Do containers ...
- 1,161
95
votes
4
answers
172k
views
Docker on Hyper-V vs WSL 2
I'm using Docker Toolbox, recently I got to know about the Docker installation using WSL 2.
What are the differences between Hyper-V and WSL 2? Which has better performance?
- 1,051
82
votes
4
answers
73k
views
Issue with fetching http://deb.debian.org/debian/dists/jessie-updates/InRelease with docker
Im trying to run the command
docker-compose build
I get this output:
Step 4/8 : RUN apt-get update && apt-get install -y google-chrome-stable
---> Running in ee9551cd38b9
Ign http://dl....
- 923
82
votes
4
answers
187k
views
Problems installing ping in docker
I am trying to follow the docker tutorial but in a virtual machine. I've tried to install ping in ubuntu docker container with the command
sudo docker run ubuntu apt-get install ping
The problem is ...
user3327759
81
votes
6
answers
94k
views
What's the difference between docker.io and docker?
Trying to learn docker here but I am a bit confused on what the difference is between docker.io and docker. Is docker.io the daemon server and docker the client? Why does the daemon need to run all ...
- 1,644
67
votes
3
answers
59k
views
How to make a symlinked folder appear as a normal folder
I have two Dart applications I need to dockerize. These two apps use a shared source directory.
Because Docker prevents adding files from folders outside the context directory (project/app1) I can't ...
- 806
64
votes
1
answer
79k
views
Remove docker0 bridge
I'm using docker via
# service docker start
This creates a docker0 bridge. However using
# service docker stop
doesn't remove this bridge.
How do I get rid of it? I'm not sure if I missed ...
- 743
63
votes
2
answers
45k
views
Why is the Alpine Docker image over 50% slower than the Ubuntu image?
I noticed that my Python application is much slower when running it on python:2-alpine3.6 than running it without Docker on Ubuntu. I came up with two small benchmark commands and there's a huge ...
- 951
42
votes
3
answers
165k
views
Docker WSL 2 installation is incomplete
After substituting Docker Desktop on Windows 10 with a more recent version, clicked to start it and got the following error
WSL 2 installation is incomplete
The WSL 2 Linux kernel is now installed ...
- 1,447
40
votes
6
answers
159k
views
No internet connection inside Docker containers
I cannot execute any command requiring internet connection inside any Docker container.
Works:
docker run ubuntu /bin/echo 'Hello world'
Does not work:
docker run ubuntu apt-get update
Err:1 http:...
- 535
39
votes
5
answers
59k
views
How solve permission problems for docker in ubuntu?
I have installed docker as described here. I use Ubuntu Trusty 14.04 (LTS) (64-bit). Everything during installation was well. Also command $ sudo docker run -i -t ubuntu /bin/bash completes well (...
- 950