Questions tagged [container]
Questions concerning container in Digital container format, programming, type theory, Operating system-level virtualization, Web container, etc.
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How can I run the sudo command in Python code under CentOS in Docker [migrated]
I am trying to access the docker image labels from Python as follows
hostname = socket.gethostname()
cmd = "sudo curl --unix-socket /var/run/docker.sock http:/containers/" + hostname + "/json"
output ...
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0answers
34 views
Opendaylight Running Docker Container
I am running a container in Opendaylight using the command
docker run -d -p 6633:6633 -p 8181:8181 -p 8101:8101 --name=opendaylight glefevre/opendaylight
After running the command I get an error
...
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0answers
73 views
Docker container eat memory and has large block I/O
I try to use Docker and I have little problem. I don't understand why there is an increase in memory usage in my container. For example:
I have container with RabbitMQ, but it's not used. When I ...
0
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1answer
75 views
machinectl not importing diskimage
I was playing with systemd-nspawn. So I created a qcow2 disk image of 2 GB
and Installed minimal Debian using debootstrap.
Then I tried to import it using machinectl but it fails every time giving ...
1
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0answers
93 views
Jenkins Docker container rights/owner needed to access the jenkins-home
So, I have followed this tutorial to migrate my already configured Jenkins inside a Docker container, this works quite well.
At the end of the tutorial, I launched the command:
sudo chmod -R 777 ~/...
0
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1answer
30 views
Docker within a docker
Is it okay to run a docker container inside another docker container? Please explain if there are any cons.
Upto what depth is it advisable to go. I need to do this primarily for security concerns.
...
1
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2answers
551 views
rm -rf does not work: 'Device or resource busy'
I'm using OpenVZ to create containers and it creates a folder for each container to store its files. I stopped the creation of a container before it gets completed, so it created a folder for that ...
0
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0answers
303 views
Running pyshark (tshark) in a container: TShark not found
I'm trying to run pyshark (which uses tshark) inside a docker container, but without success so far. I already stumbled upon different problems using centos in a containter, in combination with ...
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0answers
14 views
What are my options for running a depricated library with dependencies
So my introduction to robotics class is using ROS indigo(apparently a lot of the existing codebase isn't easily ported to newer versions) which is running on a depricated version of ubuntu (teacher ...
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1answer
193 views
LXD Connect to a container on public ip
So I've setup a Ubuntu server 18.04.01 64bit can connect to it and all that with SSH.
Installed LXD/LXC
I also created a bridge br0 in netplan with DHCP at first an to connect to the containers with ...
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0answers
10 views
Apply a java function to a dockerized software
I want to let a java function able to apply some action to software dockerized in a docker container.
How can i establish the needed connection between the java function and the container.
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1answer
133 views
Will NAT bridged LXC unprivileged containers routes the http calls to host http server via the lan network?
User A has a http server running on host Ubuntu machine with IP "HostIP" and port 8081.
Now user A creates an unprivileged lxc container (container1)
User A logs into lxc-attach -n container1.
Now the ...
0
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1answer
377 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?
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0answers
183 views
In the 18.04/bionic docker container, how do I restore manpages?
When building a container based on the official 18.04/bionic docker image,
It appears to be impossible to install manages. even if I explicitly install them, they do not appear to be on the file ...
1
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1answer
834 views
LXC + Ubuntu 18.04: “Unable to fetch GPG key from keyserver” when trying to create a new container
I have a fresh install of Ubuntu 18.04 LTS server and trying to setup some containers but I'm getting the keyserver error:
> lxc-create -n test -t download
Setting up the GPG keyring
ERROR: Unable ...
0
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1answer
189 views
Publicly Available Containers via Ubuntu 18.04 — help question
First off, let me start by saying I am no expert in server talk. I've been teaching myself as I go along, and I really only know entry level basics to server management.
I am trying to consolidate ...
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0answers
64 views
Forward Incoming Traffic from Client on Host to Container
I use ubuntu 16.04 right now.
I have an small office right now. In the past, the traffic like this:
CLIENT --- SERVER --- ROUTER --- INTERNET
I set up the network like this:
I have an login page....
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0answers
63 views
Understanding systemd-cgls output
I'm trying to understand the systemd-cgls command. Couldn't find a detailrd document.
I need to understand the output of this command in detail.
The actual goal is to understand how a docker ...
1
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1answer
129 views
How do I add the “contains: …” data to an mp3 file?
I am trying to get gmediaserver (v0.13.0-8) to serve all of my mp3s. Right now it sees only a portion of them. I noticed that the "file" command produces different results for the working files than ...
2
votes
3answers
955 views
How can I install the Vyos software .iso inside an LXC container?
I have a problem with the installation of the Vyos software inside an LXC container. The .iso is vyos-1.1.8-amd64.iso.
1
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1answer
605 views
Connection refused error for kube-dns pod
I have configured kubernet v1.9.3 in my Ubuntu 16.04LTS system. Master node was successfully created with an exception of kube-dns pod getting a connection refused issue.
I am getting the following ...
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0answers
130 views
Possibility to run isolated applications (think BSD jails) on Ubuntu Server
I am sick and tired of FreeNAS and want to move to Ubuntu Server. However, I really like jails and the ability to run applications isolated from oneanother. Is it possible to achieve this in Ubuntu ...
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0answers
62 views
Setup containers
I have ubuntu 17.10 and i'm trying to setup containers that people can ssh into from outside my network. I tried installing LXD containers and had a friend try to ssh into it but it says connection ...
4
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0answers
418 views
How to switch snap docker from inactive to active?
Why is it easy to switch docker from inactive to active on AWS:
ubuntu@ip-172-31-14-19:~$
ubuntu@ip-172-31-14-19:~$ sudo snap services
Snap Service Startup Current
docker dockerd enabled ...
1
vote
1answer
549 views
docker: Error: No such container: jmar71n/freepbx
how do I login to a container as root?
thufir@dur:~$
thufir@dur:~$ sudo docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu latest ...
3
votes
1answer
9k 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 ...
0
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1answer
338 views
Failed to fetch packages 404 Not Found for galera
I'm trying to create a galera docker image based on this dockerfile file from this link http://galeracluster.com/documentation-webpages/docker.html
FROM ubuntu:14.04
MAINTAINER your name <your....
1
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0answers
612 views
systemctl commands won't work in an lxc container
I ssh into my container and I run this command:
systemctl restart nginx.service
And the terminal spits outs one of these bad boys:
Failed to connect to bus: No such file or directory
Anybody ...
2
votes
1answer
344 views
Centos7 LXC Shell Access on Ubuntu 17.04 host
I know this is probably google skills deficiency on my behalf but for the love of god I cant shell into a CentOS 7 container on an Ubuntu 17.04 host.
user@ubuntu1704:~$ lxc shell centos7
user@...
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0answers
171 views
How to use gnome-keyring in lxc ubuntu container?
I have tried to start the installed gnome-keyring in a lxc Ubuntu 16.04 container by executing sudo gnome-keyring-daemon --start. However, I got the following errors.
** (gnome-keyring-daemon:21983): ...
1
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1answer
859 views
In LXD container, can I mount a disk image such that it is private to the container?
Inside of an LXD container, I have created a disk image file and finally figured out how to mount it. However, a side effect of mounting the image makes it visible and readable to the host operating ...
1
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0answers
49 views
Save Files Immediately
I have a Veracrypt container on a USB 2.0 drive (not full-disk encryption).
When I copy a file from my hard-drive (where Ubuntu is installed) to inside the Veracrypt container, the standard copying ...
1
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0answers
197 views
Booting host system with systemd-nspawn
I've been messing around with systemd-nspawn and overlayfs and been having a lot of fun. I successfully setup a few containers to play with.
I would like to boot a copy of my host system (Ubuntu 17....
1
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1answer
499 views
Can an LXD client run a desktop environment?
The examples given for LXD [1] [2] centre around terminal-based server use-cases. Can an LXD client run a graphical desktop environment in the same way as, for example, GNOME Boxes or VirtualBox?
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2answers
4k 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. ...
1
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1answer
420 views
How to add description to lxd container?
lxc list gives a list of containers. When there are a lot of them it is hard to remember what are they for. Is there any solution to add description to this list ? eg. "this machine is for apache and ...
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1answer
107 views
Does rkt work on 32-bit systems?
I´ve learned about rkt on coreos.com here.
I am very excited about rkt and would like to make use of it.
rtk is supposed to work similarly to docker (virtualisation using containers)
However I´m ...
1
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2answers
2k views
USB passthrough for LXD container on Ubuntu 16.04
I need to expose my USB interface to my LXD container and I'm using a Ubuntu 16.04 machine. Running "lsusb", I can see same the interfaces both on my host and container.
Inside my container I'm using ...
1
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1answer
4k views
Add block device to LXD containder
I want to use fake block device inside my container. I made loop devices and added disk to a container, but I do not see it /dev/ directory listing.
# truncate -s 10G xfs.img
# mkfs.xfs xfs.img
# ...
2
votes
1answer
475 views
LXD with no internet
Is there a way to create and launch a LXD container using a local image rather than requiring an internet connection? All the documentation and how-tos I've been able to find are based on having an ...
3
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0answers
101 views
Can I deploy multiple controllers in LXD on a single host?
I wondering if there are possibilities to deploy 2 charms in 2 lxd containers on 2 different lxd controllers bootstrapped in the same localhost pc. I know this procedure could be useless but i want to ...
2
votes
1answer
6k views
Cannot install docker-engine on Ubuntu LTS 16.04 minimal in LX branded zone on OmniOS
I followed the guide on the Docker site to install the docker-engine on my VPS which is running in a LX branded zone on OmniOS. Unfortunately, I got an error during the installation which is probably ...
4
votes
1answer
2k views
lxc Container does not start
I am trying to run an lxc container on Ubuntu 16.10 with the following configurations:
lxc.utsname = cont
lxc.network.type = veth
lxc.network.flags = up
lxc.network.link = bridge
lxc.network.ipv4 = ...
1
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1answer
222 views
Do containers use same kernel?
I wanted to know if all containers running on a particular Linux machine use same underlying host kernel. I read yes, they do use same underlying host's kernel and hence are light-weight and very fast....
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1answer
177 views
How to update a debootstrap machine?
I have several machines (Ubuntu 16.04) created via debootstrap which now cannot start anymore due to systemd changes (I start them via systemd-nspawn).
Efforts to fix this are ongoing on the host ...
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0answers
2k views
I think I messed with my LXD setup. How to repair?
I'm running Ubuntu 14.04 and I've been using LXD for some time with no problem.
I think I broke something and LXD stopped working. I tried to "repair" it and I think I made it worse.
First I deleted ...
2
votes
1answer
1k views
sudo: main: unable to allocate memory (Inside of Linux Container)
I am trying to build a 32 bit version of Wine in a Linux container. When I start the container, attach, and login, and enter the command sudo apt-get update I get the error sudo: main: unable to ...
2
votes
2answers
2k 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....
6
votes
2answers
9k views
How to pass file as argument for a dockerfile
Actually I'm not sure this can be done but I know there is always a hack , so I am enthusiastic about what you experts will say about this.
l want to pass a package as an argument when building my ...
0
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1answer
274 views
routing between LXC containers in deferent subnets
I have 2 containers in deferent subnets, one 10.1.1.1/24 and 10.1.2.1/24. I want to connect them together, how can i do it ?
