Questions tagged [container]

Questions concerning container in Digital container format, programming, type theory, Operating system-level virtualization, Web container, etc.

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What is correct way to fix name resolution from Docker container?

I have clean Ubuntu MATE 16.04.6 LTS installed. I installed Docker from repository here with: sudo apt-get install docker.io and added my user to docker group with sudo usermod -a -G docker $USER ...
N0rbert's user avatar
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128 votes
1 answer
88k views

what's the main difference between Docker and Snap?

In recent c't (sadly paywalled) there is an article about Snap and Flatpak. This sounds very similar to Docker, lots of concepts are the same. Now my question what's the difference between Snap and ...
Sybil's user avatar
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29 votes
2 answers
106k views

Unit docker.service could not be found

Is it necessary to connect the interfaces? Or might this be a firewall issue? thufir@dur:~$ sudo snap install docker docker 17.06.1-ce from 'docker-inc' installed thufir@dur:~$ sudo service docker ...
Thufir's user avatar
  • 4,551
15 votes
3 answers
27k views

How to prevent system from being "minimized"

Today I noticed a new message when I login to my Ubuntu 18.04 docker container. This system has been minimized by removing packages and content that are not required on a system that users do not ...
onknows's user avatar
  • 340
13 votes
1 answer
12k views

Why kernel version doesn't match Ubuntu version in a Docker container?

I have a Docker container built from Ubuntu 14.10. When I log in to the container to check the Ubuntu version and kernel version I see the following: root@~$>> lsb_release -a No LSB modules are ...
jcm's user avatar
  • 233
9 votes
1 answer
12k views

How do I copy a file/directory from host into a LXD container?

I have a file/directory on the host that I want to copy into the LXD container. What is the command to copy the host -> container?
Jake's user avatar
  • 431
6 votes
3 answers
17k views

Is it possible to run Docker container and show its graphical application window on host?

I have created the simpliest (minimal working example) Dockerfile to run graphical application on my Ubuntu 16.04 LTS host system with 19.10 insider container: mkdir ~/docker-xclock cat > ~/...
N0rbert's user avatar
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6 votes
2 answers
5k views

Modifying sysctl values inside lxc container

I have made several linux containers using the normal userspace tools (not docker), and I have been setting up a test environment. I want to set up two containers to try out heartbeat, which requires ...
Ace's user avatar
  • 316
2 votes
2 answers
5k views

Errors installing php7.0-fpm on Ubuntu 16.04 running in a container

On attempting to install php7.0-fpm # apt-get install php7.0-fpm I'm getting the following error (copied from /var/log/apt/term.log): Preparing to unpack .../php7.0-fpm_7.0.8-0ubuntu0.16.04.2_amd64....
Matt Wallis's user avatar
0 votes
3 answers
10k views

how do I change default MTU from 1500 to 9000 for lxdbr0 for containers created using LXD?

I'm running linux containers created by LXD on ubuntu 14.04.05 . I have a lxdbr0 interface setup , but its default MTU is 1500 , how do I update it ? I tried the following command, but it doesnt work. ...
bits's user avatar
  • 101
0 votes
1 answer
260 views

Installing okular via apt-get on bionic gives me [duplicate]

On Ubuntu 18:04 Bionic (installed as a Singularity container) I issue apt-get install okular and I get the message "E: Unable to locate package okular". Why? Is okular not in the apt repositories ...
halloleo's user avatar
  • 141