Questions tagged [lxd]
The lxd tag has no usage guidance.
65
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How to route two DHCP interfaces to two different networks
I use LXD and cloud-init to configure an instance with two interfaces which get assigned IP's via DHCP.
eth0 (10.23.44.177/24) which is connected to a bridge on the host machine (lxdbr0) to get out ...
- 103
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0
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25
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Unable to launch LXD VM
I'm trying to create a VM using LXD. The information on the server I am working on is as follows.
os: Linux cpu01 5.4.0-165-generic #182-Ubuntu SMP Mon Oct 2 19:43:28 UTC 2023 x86_64 x86_64 x86_64 ...
1
vote
1
answer
42
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after migrating kvm virtual machine with Centos7 to LXD container, the only process that starts at boot is systemd (/sbin/init)
the title pretty much describes it all. After starting the container the only running process is /sbin/init which is a link to systemd. No syslog, empty journalctl, lxc-start with console attached ...
- 121
1
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1
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217
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Debian 12 + LXD/LXC security.idmap.isolated fails
Debian 12.1 (6.1.0-11-amd64) running LXD/LXC and on an unprivileged container setting security.idmap.isolated=true seems to fail to update the owner/group of the container's files.
Here is an example:
...
- 1,218
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79
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Error: Storage pool "default" unavailable on this server (losetup command fail)
I can't start my lxc/lxd containers anymore. I get the error : Error: Storage pool "default" unavailable on this server.
I am on debian sid.
The root issue seems to be that the command ...
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0
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0
answers
208
views
Using ZFS, volume size increase are not seen by LXD container
I'm trying to use LXD to test Ansible deployments, but the container are too small.
I read the documentation from linuxcontainers.org here, and I still cannot increase the size on the root disk of my ...
- 123
1
vote
1
answer
826
views
Password of new user with LXD and Cloud-init
I'm trying to create a profile to automate the creation of a container, but I'm having trouble with cloud-init. For some reason the password is not being set for the user and is also not being added ...
- 113
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0
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73
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Serve cephFS files over HTTP (or S3?)
I have a CEPH+LXD cluster configuration.
And I would like to serve the files in the container over HTTP (S3,whatever doesn't matter).
Is there a way to do this using the rgw service?
Like can I point ...
- 11
1
vote
2
answers
2k
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A few users and subuid/subgid mapping
I cannot get my head around the userns-idmap mapping ie with sub{uid,gid} mapping stuff.
Here's what I have:
# lxc launch images:ubuntu/22.04 c1
# lxc config device add c1 home disk source=/home/user3/...
- 31
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1
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1k
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Redirect traffic to an IP into a LXC container
I have a dedicated server (running Ubuntu 20.04) running a VM in Virtualbox. This VM (also running on Ubuntu 20.04) has several applications running in dedicated LXC containers managed by LXD. The VM ...
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1
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0
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195
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Re-mount btrfs LXD storage pool to LXD
I have a Linux system with 2 hard disks, one of them carrying the Ubuntu-flavored linux system, and the other a btrfs-formatted disk carrying the LXD containers.
It was easy to set up LXD to make use ...
- 111
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90
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when I use the LXC IP on the browser it gives "This site can’t be reached"
Basically I want to establish website with the LXC.
so I installed LXD and created LXC called app1, then installed apache2. All are running, but when I use the LXC IP on the browser it gives "...
- 101
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202
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iptables / LXD - Mangle iptable - Route outgoing distant port (to distant server port 21) via eth0
To summarize the context, it's an lxd container that always connects as an OpenVpn client.
{wan} <-> {192.168.x.x <-> iptables <-> lxd bridge host 10.0.3.1} <-> {lxd container ...
- 1
0
votes
1
answer
993
views
Docker inside LXD starting container process caused "apply caps: operation not permitted"
I got this error when trying to run a docker container inside an LXD container
gpu is required to run this docker container(I think this might have an effect
(base) root@sim2real:~# sudo docker start ...
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1
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0
answers
147
views
LXD: restore the deleted image
After creating an lxd container in the ZFS storage I deleted the based image by mistake.
Now the ZFS structure looks like:
# zfs list -t all -o name,clones
...
main/containers/mail
...
main/deleted/...
- 863
2
votes
2
answers
665
views
Running tasks inside LXD container through ansible
Trying to figure out the best way to get ansible to do its magic within the containers. Was thinking of using ssh in each container, but then that is server-dependent. or I have to come via the proxy ...
- 31
1
vote
1
answer
509
views
Ansible (SSH + LXD) plugin
I have a setup of ansible and different server for LXD. Can anyone provide me the plugin that can be used to do stuffs inside LXD container through ansible like installing nginx or removing default ...
- 31
0
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1
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473
views
How to pass a cloud config to LXD?
I've been to countless sites including this one, trying to figure out how to make LXD run a cloud-config when I launch my LXD container. Some places recommend setting up a profile (didn't work). ...
- 239
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1
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2k
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Can I restore a Vzdump tar archive to an LXD/LXC container
I have a number of "tar" files created from an old proxmox 6 server, using the vzdump tool.
The person that originally created them has left the company, and the company has changed it's ...
- 293
2
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0
answers
450
views
How to move a linux container to a remote server running proxmox 7.0?
I am currently in the process of migrating a server running several linux containers to a server managed by proxmox. In the past when i moved a linux container to a different host i just used the LXD ...
- 403
1
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3
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2k
views
How do I download and install a regular DPKG package in a cloud-init script?
I'm spinning up lightweight containers on a Linux Host using LXD/LXC.
The sole purpose of these containers is to host "Dotnet & Dotnet core apps"
For a while I've been using Ansible, but ...
- 293
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1
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215
views
Apache2 simple reverse proxy forwarding http traffic to lxd container only loads plain html very slowly on graphic browser
The actual web servers run on LXD containers, while the host Apache2 simply forwards http traffic to the containers. The setup is simple on the host, everything else is default:
<VirtualHost *:80&...
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2
votes
1
answer
207
views
How do I refer to the 'LXD host from an LXD container
We currently run our services in a series of LXD containers - we have one running a nginx server as a reverse proxy, pointing at each service, and where I need to connect to a container from the host ...
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1
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1
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224
views
LXD on ZFS on LVM on H/W RAID 10
I have a Dell R540 with PERC H730P running RAID 10 over 12 DISK to the tune of ~22TB. I want to run various applications/services in LXD containers.
I understand that ZFS is preferred for LXC storage ...
- 35
1
vote
1
answer
918
views
What is an appropriate backup strategy for LXD with BTRFS storage backends
I'm about to re-configure my home server from scratch and am wondering what would be the best strategy to backup my LXD containers. Meanwhile I am running Ubuntu 20.04 LTS and have some services ...
- 11
1
vote
2
answers
1k
views
lxc send file or copy
I am trying to copy a file with lxc, now I am already desperate. Here are some commands that I have tried:
#temp=$(cat 2.sh)
#lxc-attach -n containerName echo $temp > /root/2.sh
#lxc-attach -n ...
- 162
1
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3
answers
5k
views
How to fix ContainerCreating errors while deploying metallb?
For testing purpose, I have installed ubuntu 21 on vmware esxi server.
On that machine, spinned up kubernetes using lxc containers following this repository
LXC is spinned up and running.
adminuser@...
- 372
1
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0
answers
39
views
ufw allow responses from fixer.io
I have a webapplication that serves a gui via https to the public internet.
This application runs inside an LXD container (ubuntu 18.04) on an LXD host (ubuntu 20.04). The container has two proxy ...
- 287
0
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1
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112
views
LXD Container IPv4 Interface Management
Ubuntu 18.04.4
lxd 3.0.3
lxc 3.0.3
I have had several containers running without issue for a long time. Today I was making changes to my network and one of the containers picked up a DHCP address.
...
- 145
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0
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990
views
LXC No space left on device when trying to delete instance
I tried to follow the the LXC tutorial https://www.digitalocean.com/community/tutorials/how-to-set-up-and-use-lxd-on-ubuntu-16-04
When running command lxd init I used all defaults except 1GB as disk ...
- 11
3
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0
answers
349
views
Why su command takes to long in nested Debian LXD containers?
I observed that the command su takes too long (30 seconds) when it is executed in a LXD Debian container that is nested into an Ubuntu LXD container. This overhead does not occur Debian containers ...
- 263
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1
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1k
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Route Tinyproxy outgoing connections through OpenVPN interface
I've created an Ubuntu 16.04 lxd container and setup Stunnel, Tinyproxy and OpenVPN client in it.
The goal is to connect to Tinyproxy through Stunnel and force Tinyproxy to use OpenVPN's interface for ...
- 101
6
votes
2
answers
8k
views
No network connectivity in the LXC container set up in the "routed" mode
I'm experimenting with lxc/lxd in Vagrant, but i'm quite new to it. I managed to create running container, but I cannot ping anything (including 8.8.8.8) from inside of it. I can ping its IP from my ...
- 117
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0
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537
views
How to delete all snapshots in lxd cluster?
I am trying to find a fast method, how to delete all snapshots in lxd cluster. The only way I see is using lxc delete container/snap for each snap. Am I missing something?
Thanks
- 111
1
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1
answer
1k
views
lxd: dnsmasq not resolving containers ip anymore
I have Lxd installed on an Arch system (from packages, not snapd), yesterday I rebooted the system after an upgrade and the name resolution of the fake domain .lxd stopped working; dns is provided on ...
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1
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203
views
Get client IP in exim LXD container
I set up an exim server in a Debian 10 container with LXD and then created a proxy device to map the SMTP port from the host to the container:
lxc config device add mycontainer myport25 proxy listen=...
- 518
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votes
1
answer
617
views
Fedora 31 LXC service failed to start "Failed to start FUSE filesystem for LXC"
I'm trying to setup LXD system for test environments on Fedora Desktop workstation but the LXD service just wont start because the dependency service LXC fails. After trying to start the sudo ...
0
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1
answer
574
views
Getting the firewall to work inside LXD containers using NAT?
I'm running a single NGINX proxy container (with proxy_protocol=true) alongside with multiple web containers, which is working beautifully. The only problem however, is that using proxy protocol the ...
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3
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0
answers
944
views
How to mount specific /proc for all Docker containers on a host?
I am running Docker containers within an LXD container and I have noticed that Docker mounts it's own copy of /proc despite the LXD container having container-aware /proc files.
For example:
root@...
0
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1
answer
622
views
How to forward traffic from a specific domain from apache2 to LXC container
I am currently running apache2 on my server, but would like to forward http(s) traffic requesting a specific host (ex. lxc.example.com) to an LXC container which can be accessed by a local ip address ...
0
votes
1
answer
483
views
lxdbr0 and host machine source based routing
I have fairly regular LXD setup (version 3.0.3) with the default bridge interface lxdbr0 on Ubuntu 18.04.2.
On the other hand my host machines network is not the most regular. I have two bridges (br0 ...
0
votes
1
answer
1k
views
Overhead of LXD
Question for server structure here.
Is the overhead for LXD small enough to use it for per-process containers?
E.G if I have a LAMP stack, media server, game server, etc. is it viable to split each ...
- 103
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1
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232
views
LXD container restricted to specific user
If I have 2 users with the 'lxd' group, user-1 and user-2. If user-1 starts a container, then I think that user-2 may stop it, destroy it or even run command on that container or connect via ssh to it....
1
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1
answer
1k
views
Briding LXD Containers to VLAN
I was trying to do something that is supposed to be pretty easy but for some reason it not work.
I want to bridge two LXD containers to the same VLAN.
To do this I create the VLAN interface over the ...
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1
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2k
views
Is lxd/lxc a suitable replacement to virtual machines (vSphere, for example) for server infrastructure? [closed]
I would like to move my servers to virtual machines. This is because it'll make it easier for me to fire up more machines and back them up in case the physical server is damaged (I'm not aware of ...
0
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0
answers
638
views
How to set an IPv6 neighbour discovery proxy with Netplan?
How can I configure the following commands in Netplan?
ip -6 neigh add proxy 2a03:4000:21b:44bc:1::1 dev ens3
ip -6 neigh add proxy 2a03:4000:21b:44bc:1::11 dev ens3
ip -6 neigh add proxy 2a03:4000:...
- 101
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186
views
LXD + ZFS on one-disc systems
I'd like to experiment with LXD on a dedicated NUC. Among other options, LXD supports ZFS. But I have the following questions:
Case 1: Assume my NUC has one disc, say 256 GB, that supports the OS. ...
2
votes
3
answers
4k
views
How to resize lxc/lxd images, if i am using LVM backend?
I'm using LXD few years and I'm glad to use this platform in my testing environment. But few days ago, I couldn't install Microsoft SQL server 2017. The reason was, that I used default ZFS backend.
...
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4
votes
0
answers
429
views
How to enable hostname resolution (dns) for lxd containers from the lxd host?
How to enable lxd hostname resolution from the lxd host?
After creating the below container:
>>> lxc launch ubuntu: container
Creating container
Starting container
>>> lxc list
+--...
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677
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HAProxy returns 503 (80 & 443 frontends + redirections managed by virtualhosts)
I've already looked for many posts, but no one solved my problem...
Let me explain the context :
3 containers on a dedicated server :
[10.173.223.10] haproxy
[10.173.223.11] Container_A (contains ...
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