Questions tagged [lxc]
The LXC tag is for questions relating to LinuX Containers and lightweight virtualization capabiliaties, issues, and troubleshooting.
441
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microk8s on LXC: Service snap.microk8s.daemon-proxy is not running
I installed microk8s in a LXD container
snap install microk8s --classic
When I inspect the instance it shows that snap.microk8s.daemon-proxy is not running
root@mk8s1:~# microk8s inspect
Inspecting ...
- 350
6
votes
1
answer
3k
views
LXC/LXD as Debian package
Installing LXD from APT installs it as a Snap package and while LXC programs are installed from a Debian package, running them tells me I need to install the LXD snap. Is there anyway to install LXC ...
- 1,678
1
vote
2
answers
1k
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What does stateful mean
I can snapshot a LXC on a ZFS Pool with or without the Option "Stateful".
I can not find any Info about it. What does it mean?
- 21
1
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0
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299
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About launching LXC Containers and their IP assignment
i am playing around with LXD and their Containers. I configured my LXD init like this:
...
Would you like to create a new local network bridge? (yes/no) [default=yes]: no
Would you like to configure ...
- 21
0
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1
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1k
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Auditd on Ubuntu 18.04 Container
i want to ask something about auditd in container, here we go
recently i try install auditd in my server (outside container) and it worked i follow this steps (https://documentation.wazuh.com/3.13/...
- 1
0
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0
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396
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Performance using docker inside lxc
Is it good to have docker container inside lxc? How about running php, mysql application performance using docker container inside lxc for this when compare to running this applications as service in ...
- 31
1
vote
1
answer
301
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incron job does not write to temp directory
I have a very weird problem that I might not have cooked down correctly, but I tried a minimal example:
In a 20.04 lxd container on 20.04, I am trying to run a job triggered by incron. For my minimal ...
- 241
2
votes
1
answer
499
views
Lost LXD/LXC with most recent 20.04 upgrade
Ubuntu 20.04 update/upgrade broke lxd/lxc containers
History:
Ubuntu 16.04 Server running LXD upgraded to Ubuntu 18.04 and subsequently Ubuntu 20.04.
All LXC containers worked fine until yesterdays “...
- 21
4
votes
3
answers
17k
views
Installing YUM in Ubuntu 20.04 to run CentOS LXC Containers
I was able to install Yum in Ubuntu 18.04 but I can't install it anymore in Ubuntu 20.04. So, when I try to run a CentOS LXC container in my Ubuntu I get an error like this one:
# lxc-create -n ...
- 151
1
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0
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564
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LXC container ubuntu 18.04 apt update problem
I use LXC. I have not been able to update for the last 1 week. The errors are as follows: domain name resolution, Ping etc. It works.
root@nginx2:~# ping -c 2 google.com
PING google.com (172.217.18....
- 11
0
votes
1
answer
96
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SNAPD automatic updates and sunning servers in LXC
Recently Ubuntu moved LXC into snaps which raises a concern with snapd updates. Those updates can not be configured to be manual, they run on schedule and can't be turned off. As I am thinking to have ...
- 626
2
votes
1
answer
1k
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Performance overhead of LXD running as a SNAP
LXC/LXD used to be implemented as native packages until 18.04. Since 18.04 LXC containers are run as snaps. I wonder if this imposes a runtime overhead. This would negate the idea of having light-...
- 626
13
votes
1
answer
19k
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Can't remove core18 snap
I am cleaning up my fresh Ubuntu 20.04 install and I can't seem to remove core18 snap.
$ snap list
Name Version Rev Tracking Publisher Notes
core18 20200427 1754 latest/stable ...
- 626
0
votes
1
answer
1k
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Setting Static IP and NAT trafic to LXC container
This is my first question in here so please have mercy of structured badly compared to the usual suspects. :-)
I would like to be able to receive real connecting client IP in a LXC container over TCP....
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0
answers
792
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Cannot delete LXC container with full volume nor the volume itself
I've been toying around with LXC/LXD lately and ended up with a couple of stopped containers:
❯ lxc list
+------------------------------------+---------+------+------+-----------+-----------+
| ...
- 101
11
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1
answer
19k
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system does not fully support snapd: cannot mount squashfs image using "squashfs - mount failed
I'm attempting to install PowerShell on my Ubuntu instance using snap, but it generates an error:
# sudo snap install powershell --classic
error: system does not fully support snapd: cannot mount ...
- 213
0
votes
0
answers
370
views
Trying to extract files from ZFS image created by LXC
Alright, so on the beginning I’ll say that I’m not a master at Linux and that it is my first post here. If you’ll need me to do anything, I’ll do my best, but I can’t promise I’ll be successful. Also ...
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0
votes
0
answers
1k
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Getting Proxmox Virtual Machines with Networking working on So you Start (OVH) Dedicated Server
I just recently got a So you Start.com dedicated server. I want to set up some virtual machines in it and some LXC containers.
I have created a Ubuntu 20.04 virtual machine and have been trying to get ...
- 207
1
vote
1
answer
584
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Ubuntu server: Cannot setup dummy driver alsa (LXC container) // modprobe issue [duplicate]
I'm trying to setup alsa on my ubuntu server, but it seems that the drivers are not installed & I don't know how to solve this problem. I just wanna setup a dummy soundcard. But I really don't ...
- 11
0
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2
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1k
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iptables rules for lxd container via ssh
Good day.
I use ubuntu 18 and want connect to my container via ssh. This is my container
cont | RUNNING | 10.78.195.190 (eth0) | fd42:4be2:f986:212a:216:3eff:fee4:582 (eth0) | PERSISTENT | 0 ...
- 3
0
votes
1
answer
870
views
LXD proxy for DNS
I set up a bind server in a LXD instance and I try to forward all DNS queries from host to this instance. I tried this:
sudo lxc config device add bind dnsdevicetcp proxy listen=tcp:0.0.0.0:53 ...
- 1,055
1
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3
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2k
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error on install Community Server/ Document server onlyoffice
when try to install only office server based on there Installing Community Server for Debian, Ubuntu and derivatives
so step by step until the latest command
sudo apt-get install onlyoffice-...
- 229
0
votes
2
answers
1k
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Delete a directory inside a container
# lxc exec mycontainer rm -r /home/myuser/mydir
gives me
Error: unknown shorthand flag: 'r' in -r
# lxc exec mycontainer "bash -c 'rm /home/myuser/mydir -r'"
just silently exits without removing ...
- 369
1
vote
2
answers
3k
views
LXC change default non-root user
I am running an lxc container for an app, but need to change the default user to the same as my host system. I setup the container following these instructions:
https://blog.simos.info/how-to-run-...
- 379
1
vote
1
answer
400
views
Upgrade to 19.10, LXD will no longer run
I recently upgraded to 19.10.
LXD will no longer run, I get this error:
Error: Get http://unix.socket/1.0: dial unix /var/snap/lxd/common/lxd/unix.socket: connect: connection refused
I've checked ...
- 531
1
vote
0
answers
621
views
Where can I find config file for Ubuntu 18.04 LXC container?
I am trying to test LXC container and created Ubuntu 18.04 container. To access these container from Host Network machines I created new bridged interface in host /etc/network/interfaces and wanted to ...
- 121
1
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0
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187
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Network unreachable after adding new bridged interface
I am trying to add new bridged interface in /etc/network/interfaces with following settings on my Ubuntu 18.04 VM while testing LXC containers.
auto br0
iface br0 inet dhcp
bridge_ports eth0
...
- 121
0
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2
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2k
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LXC Container not pining from host or network
I recently started looking at LXC container for hosting tunnel service (IPv6 over IPv4 and IPv6 over IPv6).
On my Window 10 machine I have Ubuntu 18.04 VM and I set up a Ubuntu 18.04 LXC Container ...
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7
votes
2
answers
34k
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How to fix "docker: Error response from daemon: cgroups: cannot find cgroup mount destination: unknown." on `docker run`?
I have Ubuntu 16.04.6 LTS installed.
Previously I have installed Docker from its repository as docker.io package.
Yesterday I have installed LXC with LXD and I suppose that they have some problem ...
- 100k
0
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1
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857
views
How to configure lxc container to have two ethernet devices - macvlan and bridge?
I'm having trouble with network configuration for lxc containers. I want multiple containers located on one machine to communicate via macvlan with outside world, but also have local bridge to ...
2
votes
1
answer
280
views
What is the most efficient way for creating hundreds of containers for single apps; LXC or Docker?
I do have a dedicated server and I need to create ~200 containers inside it.
Each container will only run a single application and I'm looking for the most efficient way for this in terms of resource ...
- 255
0
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1
answer
875
views
Why isn't lxd init working on new install of Ubuntu 18.04?
I have a VPS at SSDNodes. I reinstalled Ubuntu 18.04 on it, ran update, upgrade, autoremove and clean.
I then tried to configure lxd using the lxd init. The cursor moved to the next line and did ...
1
vote
1
answer
308
views
LXC - two bridges
I'm trying to create two different bridges to use with LXC.
I have the following configuration:
/etc/lxc/default.conf:
lxc.net.0.type = veth
lxc.net.0.link = lxcbr0
lxc.net.0.flags = up
lxc.net.0....
- 11
1
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0
answers
563
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Bridged network for LXC - Ubuntu 18.04
I'd like to create a bridged network for three containers, with static IP addresses and connected to the internet through the ethernet card of the host machine.
For example, with the bridge named ...
- 51
0
votes
1
answer
917
views
Is it possible to run a desktop GUI VM Container on linux with any linux image
Looking for way to create virtual gui desktop container inside container e.g docker or LXD whichever is better
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0
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848
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I don't have a /etc/network/interfaces file at all
I have a network card with 4 Ethernet ports. I am trying to use 2 of them, 1 for the main system and one for a LXC container. When I look up tutorials on how to dedicate eth1 interface to the ...
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1
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1k
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LXC/LXD containers in Ubuntu 18.04 network issues
I've got an Ubuntu 18.04 system setup as a VPS host to start migrating containers from an EOL 14.04 VPS host. I've got a bridge (br0) configured to allow the containers to have IPs on the same vlan as ...
0
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0
answers
1k
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Ubuntu Touch (UBports) and Android support for LXC/LXD containers (for running Ubuntu): current state
I am trying to run a web-server on my Android device (several available models, ARM or x86 hardware) inside a container (lxc / lxd). Looking for the easiest and safest way to do it. I was thinking ...
- 355
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1
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How to install ubuntu server for lxc on a smartphone (ARM or x86, bare metal)?
As of May 2019 what are the options (if any) to install Ubuntu server on a smartphone device?
I don't need much of the smartphone functionality, I don't need desktop and touchscreen blows and ...
- 355
7
votes
3
answers
3k
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Is it possible to run some application in the chroot or container but allow DBus interaction with host system?
I need to run old version of application in chroot (or container) and allow DBus interaction with host system. I can't install this application on host system because of serious dependency problems.
...
- 100k
0
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0
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173
views
Opera doesn't start in LXC container: "Out of memory"
I'm trying to run Opera browser in a LXC container (logged in via ssh -X), but it doesn't work:
andrea@ue-02:~$ opera
[378:388:0507/165937.131977:FATAL:memory.cc(22)] Out of memory. size=131072
...
- 51
4
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0
answers
2k
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DNS resolution in LXC container
I'm using srsLTE-emane (https://github.com/adjacentlink/srsLTE-emane), an open source software that emulates LTE Network, on Ubuntu 18.04.2, and I have a problem with DNS resolution in LXC container.
...
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2
votes
2
answers
1k
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LXC control script launched via crontab doesn't work properly, but when used from cmd line is OK
I have a script that uses named pipes to control containers. The script monitors the named pipe for commands and executes whatever is fed into its input. Script must run as the user that owns the ...
- 131
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1
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722
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Expanding existing ZFS loop device
I have several LXC containers on my Ubuntu 18.04 machine. I have a container called "cloud" which I want to expand its storage, how can I do this without reinstalling? I am using ZFS for this.
user@...
1
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0
answers
264
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LXC cluster: failing to start the first node after reboot
I have a LXC cluster with three nodes that are all KVM virtual machines with Kubuntu 18.04 with LXD 3.0.3 installed via apt
Also the host machine is a Kubuntu 18.04
I installed LXD on the first node ...
- 703
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0
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673
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lxc-start: controller: lxccontainer.c: wait_on_daemonized_start: 842 Received container state “STOPPING” instead of “RUNNING”
when i run the config file
config file
sudo lxc-start -n controller -d
it gives me this error
lxc-start: controller: lxccontainer.c: wait_on_daemonized_start: 842 Received container state "...
0
votes
2
answers
190
views
Linux Container (LXC) image without vmlinux
Recently, I installed lxc and created an Ubuntu LXC image.
Then, I did ls -a / to see the directory listing of / inside the image.
To my surprise, there is no vmlinux or vmlinuz often seen in normal ...
- 13
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1
answer
5k
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Can't login and no password prompt when trying to login as root on console on Ubuntu 18.04 running inside LXC
I have several installs of Ubuntu 18.04.2 inside LXC containers in several nodes running Proxmox 4.4-24 (Debian 8.11).
On any of these, When I try to login as root on the console, I enter "root", ...
- 124
1
vote
1
answer
9k
views
MACVLAN Bridge in netplan
I configured LXD containers in Ubuntu 18.04 with MACVLAN interfaces so they can DHCP addresses on my LAN. This all works fine, the containers are reachable on my LAN and they can reach each other, but ...
- 43
2
votes
1
answer
6k
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Change default editor in LXD snap
I recently migrated from LXD installed from deb, to LXD installed from snap. The default editor is set to Vim. How can I change this?
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