NixOS Wiki

Talk:Proxmox Linux Container: Difference between revisions

← Older edit
Visual
imported>Vater
Vater (talk | contribs)
29 edits
 
(34 intermediate revisions by one other user not shown)
Line 4: Line 4:
|-
|-
|  
|  
! GUI
! WUI
! CLI
! CLI
| Reference
|-
|-
| find the (a current) NixOS template  
| find the (a current) NixOS template  
Line 32: Line 33:
| download the NixOS template
| download the NixOS template
|  
|  
* (if you want to switch to the ''Storage View'' and) go to one of your nodes where you can (find and) store ''CT Templates''.
* (if you want to switch to the <tt>Storage View</tt> and) go to one of your nodes where you can (find and) store <tt>CT Templates</tt>
* choose the ''Download from URL'' button
* choose the <tt>Download from URL</tt> button
** add the link for the NiixOS template file ''https://hydra.nixos.org/job/nixos/release-21.05/nixos.containerTarball.x86_64-linux/latest/download-by-type/file/system-tarball'' (to the text field of <tt>URL:</tt>)
** add the link for the NiixOS template file ''https://hydra.nixos.org/job/nixos/release-21.05/nixos.containerTarball.x86_64-linux/latest/download-by-type/file/system-tarball'' (to the text field of <tt>URL:</tt>)
** add a nice file name for the current downloadable build of the template (to the text field of <tt>File name:</tt>)
** add a nice file name for the current downloadable build of the template (to the text field of <tt>File name:</tt>)
Line 49: Line 50:
| create a (first) new NixOS container with Proxmox Virtual Environment  
| create a (first) new NixOS container with Proxmox Virtual Environment  
|  
|  
|
* (if you want to switch to the <tt>Folder View</tt> and go to <tt>Nodes</tt> and choose the your nodes where you create the container. (this note will be preselected as ''Node'' in the form.))
: <code>pct create </code>…
* choose the <tt>Create CT</tt> button
<pre></pre>
*: tab <tt>General</tt>
: <s><code>pct create 1000 --arch amd64 --description nixos-template cephfs:vztmpl/nixos-21.05_2021-10-10.tar.xz --ostype unmanaged --net0 name=eth0 --storage storage --unprivileged 1</code></s>
*:* (for the following we expect) ''1000'' is prefilled (to the text field of <tt>CT ID:</tt>) or you have added it (because it not already taken)
*:* <s>(for the following we expect) the checkbox <tt>Unprivileged container:</tt> is preselected choosen</s>
*:* <s>(for the following we expect) the checkbox <tt>Nesting:</tt> is preselected choosen</s>
*:* add a (useless, but from the form required) passphrase (to the text field of <tt>Password:</tt>)
*:* add the same (useless, but from the form required) passphrase (to the text field of <tt>Confirm password:</tt>)
*:* (optional you can) add other options of the form, like
*:** the node for the container (at the drop down menu of <tt>Node:</tt>)
*:** the name for the container (to the text field of <tt>Hostname:</tt>)
*:** …
*:* choose the <tt>Next</tt> button
*: tab <tt>Template</tt>
*:* (for the following we expect) the entry ''cephfs'' is prefilled (at the drop down menu of <tt>Storage:</tt>)
*:* (for the following we expect you) find and choose the entry ''nixos-21.05_2021-10-10.tar.xz'' (at the drop down menu of <tt>Storage:</tt>)
*:* choose the <tt>Next</tt> button
*: tab <tt>Root Disk</tt>
*:* (for the following we expect) the entry ''storage'' is prefilled (at the drop down menu of <tt>Storage:</tt>)
*:* (for the following we expect) ''8'' is prefilled (to the text field of <tt>Disk size (GiB):</tt>)
*:* choose the <tt>Next</tt> button
*: tab <tt>CPU</tt>
*:* (for the following we expect) ''1'' is prefilled (to the text field of <tt>Cores:</tt>)
*:* choose the <tt>Next</tt> button
*: tab <tt>Memory</tt>
*:* (for the following we expect) ''512'' is prefilled (to the text field of <tt>Memory (MiB):</tt>)
*:* (for the following we expect) ''512'' is prefilled (to the text field of <tt>Swap (MiB):</tt>)
*:* choose the <tt>Next</tt> button
*: tab <tt>Network</tt>
*:* (for the following we expect) ''eth0'' is prefilled (to the text field of <tt>Name:</tt>)
*:* <s>(for the following we expect) (the text field of <tt>MAC address:</tt>) is emtpy (and so prefilled  with ''auto'')</s>
*:* (for the following we expect) the entry ''vmbr0'' is prefilled (at the drop down menu of <tt>Bridge:</tt>)
*:*: we expect that you have a bridge ''vmbr0'' configured
*:*:: otherwise?
*:* <s>(for the following we expect) (the text field of <tt>VLAN Tag:</tt>) is emtpy (and so prefilled  with ''no VLAN'')</s>
*:* <s>(for the following we expect) (the text field of <tt>Rate limit (MB/s) Tag:</tt>) is emtpy (and so prefilled  with ''unlimited'')</s>
*:* <s>(for the following we expect) the checkbox <tt>Firewall:</tt> is preselected choosen</s>
*:* (for the following we expect) choose <tt>DHCP</tt> (at the ratio button menu of <tt>IPv4:</tt>)
*:*: ?!? otherwise the container will have no network access for IPv4 (or you have fill out the text field of <tt>IPv4/CIDR:</tt> and the text field of <tt>Gateway (IPv4):</tt>) ?!?
*:* (for the following we expect) the entry <tt>Static</tt> is prefilled (at the ratio button menu of <tt>IPv6:</tt>) and you have no network access for IPv6 avilibale
*:*: ?!? if you have network for IPv6 and you want to have access to your network for IPv6 you have fill out the text field of <tt>IPv6/CIDR:</tt> and the text field of <tt>Gateway (IPv6):</tt>) ?!?
*:* choose the <tt>Next</tt> button
*: tab <tt>DNS</tt>
*:* <s>(for the following we expect) (the text field of <tt>DNS domain:</tt>) is emtpy (and so prefilled  with <tt>use host settings</tt>)</s>
*:* <s>(for the following we expect) (the text field of <tt>DNS servers:</tt>) is emtpy (and so prefilled  with <tt>use host settings</tt>)</s>
*:* choose the <tt>Next</tt> button
*: tab <tt>Confirm</tt>
*:: (optional) check the configuration (keys with values)
*:* choose the <tt>Finish</tt> button
<pre>
/dev/rbd0
Creating filesystem with 2097152 4k blocks and 524288 inodes
Filesystem UUID: 3f4cf224-8062-4cd3-918c-49f891af1aa1
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632
extracting archive '/mnt/pve/cephfs/template/cache/nixos-21.05_2021-10-10.tar.xz'
Total bytes read: 836218880 (798MiB, 21MiB/s)
Architecture detection failed: open '/bin/sh' failed: No such file or directory
 
Falling back to amd64.
Use `pct set VMID --arch ARCH` to change.
/etc/os-release file not found and autodetection failed, falling back to 'unmanaged'
TASK OK
</pre>
----
----
(optional you can) check the (pve) lxc config file (and it should look like something like the following)
(optional you can) check the (pve) lxc config file (and it should look like something like the following)
Line 58: Line 119:
<pre>
<pre>
arch: amd64
arch: amd64
cores: 1
features: nesting=1
hostname: CT1000
hostname: CT1000
memory: 1024
memory: 512
net0: name=eth0
net0: name=eth0,bridge=vmbr0,firewall=1,hwaddr=FE:1E:11:E6:D2:8F,ip=dhcp,type=veth
ostype: unmanaged
ostype: unmanaged
rootfs: storage:vm-1000-disk-0,size=4G
rootfs: storage:vm-1000-disk-0,size=8G
swap: 512
swap: 512
unprivileged: 1
unprivileged: 1
</pre>
</pre>
|-
| customize the individual Proxmox Virtual Environment container configuration for NixOS
|  
|  
|
: <code>pct create </code>…
<pre>
: <s><code>pct create 1000 cephfs:vztmpl/nixos-21.05_2021-10-10.tar.xz --ostype unmanaged --net0 name=eth0,firewall=1,ip=dhcp,bridge=vmbr0 --storage storage --unprivileged 1 --features nesting=1</code></s>
sync_wait: 36 An error occurred in another process (expected sequence number 7)
__lxc_start: 2073 Failed to spawn container "1000"
TASK ERROR: startup for container '1000' failed
</pre>
----
editing the specific (pve) lxc config file (to a option for ''lxc.init.cmd'')
: <code>nano /etc/pve/lxc/1000.conf</code>
<pre></pre>
<pre></pre>
<pre>
lxc.init.cmd: /init
</pre>
|-
| (configure the available (virtual) network device for the Proxmox Virtual Environment container)
|
|
----
|-
| (activate ''nesting'' for NixOS in the Proxmox Virtual Environment container)
|
|
----
----
(optional you can) check the (pve) lxc config file (and it should look like something like the following)
(optional you can) check the (pve) lxc config file (and it should look like something like the following)
Line 96: Line 138:
<pre>
<pre>
arch: amd64
arch: amd64
cores: 2
features: nesting=1
features: nesting=1
hostname: CT1000
hostname: CT1000
memory: 1024
memory: 512
net0: name=eth0,bridge=vmbr1,hwaddr=E6:8B:60:E0:19:4C,ip=dhcp,type=veth
net0: name=eth0,bridge=vmbr0,firewall=1,hwaddr=1E:D8:FE:E9:F1:71,ip=dhcp,type=veth
ostype: unmanaged
ostype: unmanaged
rootfs: storage:vm-1000-disk-0,size=4G
rootfs: storage:vm-1000-disk-0,size=4G
Line 107: Line 148:
</pre>
</pre>
|-
|-
| customize the (pve) lxc startup setup routine
| (configure the available (virtual) network device for the Proxmox Virtual Environment container)
|
|
----
<!--
: <code>ping -c 5 cache.nixos.org</code>
<pre>
PING dualstack.v2.shared.global.fastly.net (151.101.114.217) 56(84) bytes of data.
64 bytes from 151.101.114.217 (151.101.114.217): icmp_seq=1 ttl=57 time=14.3 ms
64 bytes from 151.101.114.217 (151.101.114.217): icmp_seq=2 ttl=57 time=14.3 ms
64 bytes from 151.101.114.217 (151.101.114.217): icmp_seq=3 ttl=57 time=14.3 ms
64 bytes from 151.101.114.217 (151.101.114.217): icmp_seq=4 ttl=57 time=14.3 ms
64 bytes from 151.101.114.217 (151.101.114.217): icmp_seq=5 ttl=57 time=14.3 ms
 
--- dualstack.v2.shared.global.fastly.net ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4003ms
rtt min/avg/max/mdev = 14.302/14.312/14.325/0.009 ms
</pre>
-->
|-
| customize the (pve) lxc startup setup routine (on every node where you want to start a NixOS container)
|  
|  
|  
|  
Line 131: Line 192:
</pre>
</pre>
----
----
(after fixing all the other stuff)
<pre>
<pre>
WARN: old systemd (< v232) detected, container won't run in a pure cgroupv2 environment! Please see documentation -> container -> cgroup version.
WARN: old systemd (< v232) detected, container won't run in a pure cgroupv2 environment! Please see documentation -> container -> cgroup version.
Line 137: Line 199:
|  
|  
https://forum.proxmox.com/threads/92381/#post-402350
https://forum.proxmox.com/threads/92381/#post-402350
|-
| customize the individual Proxmox Virtual Environment container configuration for NixOS
|
<pre>
sync_wait: 36 An error occurred in another process (expected sequence number 7)
TASK ERROR: startup for container '1000' failed
</pre>
|
<pre>
sync_wait: 36 An error occurred in another process (expected sequence number 7)
__lxc_start: 2073 Failed to spawn container "1000"
TASK ERROR: startup for container '1000' failed
</pre>
----
editing the specific (pve) lxc config file (to a option for ''lxc.init.cmd'')
: <code>nano /etc/pve/lxc/1000.conf</code>
<pre></pre>
<pre>
lxc.init.cmd: /init
</pre>
|-
| (activate ''nesting'' for NixOS in the Proxmox Virtual Environment container)
|
|


: <code>grep cgroup /proc/filesystems</code>
[[NixOS]] is using "Sandboxing" by default.<ref>https://search.nixos.org/options?query=nix.useSandbox</ref> Therefore the option <code>nesting</code> for the  container on Proxmox Virtual Environment for NixOS must be acitivated.
 
----
if nesting is not acitivated
 
(try to) update (download and build) Nix expressions (<code>nix-env</code>) in a NixOS container on Proxmox Virtual Environment
: <code>nix-channel --update</code>
<pre>
unpacking channels...
warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels' does not exist, ignoring
error: while setting up the build environment: mounting /proc: Operation not permitted
error: program '/nix/store/rphxpqbsxgmykf8nyyr0pqi53nm78xa5-nix-2.3.15/bin/nix-env' failed with exit code 1
</pre>
 
(try to) rebuild NixOS
: <code>nixos-rebuild switch</code>
<pre>
warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels/nixos' does not exist, ignoring
warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels' does not exist, ignoring
error: file 'nixpkgs/nixos' was not found in the Nix search path (add it using $NIX_PATH or -I), at (string):1:13
building Nix...
warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels/nixos' does not exist, ignoring
warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels' does not exist, ignoring
error: file 'nixpkgs/nixos' was not found in the Nix search path (add it using $NIX_PATH or -I)
warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels/nixos' does not exist, ignoring
warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels' does not exist, ignoring
error: file 'nixpkgs' was not found in the Nix search path (add it using $NIX_PATH or -I)
warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels/nixos' does not exist, ignoring
warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels' does not exist, ignoring
error: file 'nixpkgs/nixos/modules/installer/tools/nix-fallback-paths.nix' was not found in the Nix search path (add it using $NIX_PATH or -I)
/tmp/nixos-rebuild.qaFefR/nix
warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels/nixos' does not exist, ignoring
warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels' does not exist, ignoring
error: file 'nixpkgs' was not found in the Nix search path (add it using $NIX_PATH or -I)
building the system configuration...
warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels/nixos' does not exist, ignoring
warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels' does not exist, ignoring
error: file 'nixpkgs/nixos' was not found in the Nix search path (add it using $NIX_PATH or -I)
</pre>
 
----
if nesting is acitivated
 
update (download and build) Nix expressions (<code>nix-env</code>) in a NixOS container on Proxmox Virtual Environment sucessfully
: <code>nix-channel --update</code>
<pre>
unpacking channels...
warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels' does not exist, ignoring
created 1 symlinks in user environment
</pre>
: <code>nix-channel --update</code>
<pre>
unpacking channels...
</pre>
 
rebuild NixOS sucessfully
: <code>nixos-rebuild switch</code>
<pre>
building Nix...
building the system configuration...
</pre>
<pre></pre>
<pre>
activating the configuration...
setting up /etc...
setting up tmpfiles
</pre>
 
----
how to configure that the option <code>nesting</code> is aciviated
 
(optional you can) check the (pve) lxc config file (and it should look like something like the following with ''nesting=1'' on the line ''features:'')
<code>less /etc/pve/lxc/1000.conf</code>
<pre></pre>
<pre>
<pre>
nodev cgroup
features: nesting=1
nodev cgroup2
</pre>
</pre>
<pre></pre>
After changing (adding) the option for <code>nesting</code> the container must be restarted.
|-
|-
| start the NixOS container with Proxmox Virtual Environment
| start the NixOS container with Proxmox Virtual Environment
|
* …
* choose the <tt>Start</tt> button
|
: <code>pct start 1000</code>
<pre>
WARN: old systemd (< v232) detected, container won't run in a pure cgroupv2 environment! Please see documentation -> container -> cgroup version.
Task finished with 1 warning(s)!
</pre>
: <code>pct status 1000</code>
<pre>
status: running
</pre>
|-
| having a running NixOS container on Proxmox Virtual Environment
|
|
|-
| login into the NixOS container
|
* … (<s>node</s>(<tt>Folder View</tt>) <tt>LXC Container</tt> -> container)
* <tt>Console</tt>
<pre>
<<< Welcome to NixOS 21.05.3740.ce7a1190a0f (x86_64) - pts/0 >>>
Log in as "root" with an empty password.
nixos login:
</pre>
<pre>
nixos login: root
</pre>
<pre>
[root@nixos:~]#
</pre>
|
: <code>lxc-attach 1000</code>
<pre>
sh-4.4#
</pre>
<pre>
sh-4.4# . /etc/profile
</pre>
<pre>
[root@nixos:/]#
</pre>
|-
| update the channel for NixOS (needed!)
|  
|  
|  
|  
: <code>pct start </code>…
: <code>nix-channel --update</code>
<pre></pre>
<pre>
unpacking channels...
created 1 symlinks in user environment
</pre>
|-
|-
| …
| (optional) test rebuild of NixOS
|  
|  
|  
|  
| https://github.com/NixOS/nixpkgs/issues/9735#issuecomment-783535726
(optional) check the default configuration file for NixOS
: <code>cat /etc/nixos/configuration.nix</code>
<pre>
{ config, pkgs, ... }:
 
{
  imports = [ <nixpkgs/nixos/modules/virtualisation/lxc-container.nix> ];
 
 
}
</pre>
: <code>nixos-rebuild test</code>
<!--
<pre>
building Nix...
building the system configuration...
</pre>
-->
<pre>
building Nix...
building the system configuration...
activating the configuration...
setting up /etc...
setting up tmpfiles
warning: the following units failed: sys-kernel-debug.mount
 
● sys-kernel-debug.mount - Kernel Debug File System
    Loaded: loaded (/nix/store/n5j5fjn60nhck658j9ab84k8n9z24n1r-systemd-247.6/example/systemd/system/sys-kernel-debug.mount; enabled; vendor preset: enabled)
    Active: failed (Result: exit-code) since Mon 2021-10-11 06:48:30 UTC; 265ms ago
      Where: /sys/kernel/debug
      What: debugfs
      Docs: https://www.kernel.org/doc/Documentation/filesystems/debugfs.txt
            https://www.freedesktop.org/wiki/Software/systemd/APIFileSystems
        IP: 0B in, 0B out
        CPU: 2ms
 
Oct 11 06:48:30 nixos systemd[1]: Mounting Kernel Debug File System...
Oct 11 06:48:30 nixos mount[17997]: mount: /sys/kernel/debug: permission denied.
Oct 11 06:48:30 nixos systemd[1]: sys-kernel-debug.mount: Mount process exited, code=exited, status=32/n/a
Oct 11 06:48:30 nixos systemd[1]: sys-kernel-debug.mount: Failed with result 'exit-code'.
Oct 11 06:48:30 nixos systemd[1]: Failed to mount Kernel Debug File System.
warning: error(s) occurred while switching to the new configuration
</pre>
|-
|-
| …
| checking systemd
|  
|  
|  
|  
: <code>systemctl list-units --failed</code>
<pre>
  UNIT                  LOAD  ACTIVE SUB    DESCRIPTION           
● sys-kernel-debug.mount loaded failed failed Kernel Debug File System
LOAD  = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB    = The low-level unit activation state, values depend on unit type.
1 loaded units listed.
</pre>
|-
|-
| …
| fixing the configuration file for NixOS
|  
|  
|  
|  
: <code>nano /etc/nixos/configuration.nix</code>
<pre>
{
  imports = [ <nixpkgs/nixos/modules/virtualisation/lxc-container.nix> ];
</pre>
<pre></pre>
<pre>
  systemd.suppressedSystemUnits = [
    "sys-kernel-debug.mount"
  ];
</pre>
<pre></pre>
<pre>
}
</pre>
: <code>nixos-rebuild switch</code>
<pre>
building Nix...
building the system configuration...
these derivations will be built:
  /nix/store/4c6mbv3y3i6m9qzv48j0ncy7163x3m7b-system-units.drv
  /nix/store/nfc7hz3shyrc1jm2nqsgh5m7izcj8psc-etc.drv
  /nix/store/fmx0v41zcyr7g38qjvdsdk5fifkjxfhx-nixos-system-nixos-21.05.3787.564cb4d81d4.drv
building '/nix/store/4c6mbv3y3i6m9qzv48j0ncy7163x3m7b-system-units.drv'...
building '/nix/store/nfc7hz3shyrc1jm2nqsgh5m7izcj8psc-etc.drv'...
building '/nix/store/fmx0v41zcyr7g38qjvdsdk5fifkjxfhx-nixos-system-nixos-21.05.3787.564cb4d81d4.drv'...
activating the configuration...
setting up /etc...
reloading user units for root...
setting up tmpfiles
</pre>
: <code>systemctl list-units --failed</code>
<pre>
  UNIT LOAD ACTIVE SUB DESCRIPTION
0 loaded units listed.
</pre>
| https://github.com/NixOS/nixpkgs/issues/9735#issuecomment-783535726
|-
|-
| …
| (optional) test changing the configuration of the NixOS container by installing a package (''ddate'') and disabling a (default running) service
|  
|  
|  
|  
: <code>nano /etc/nixos/configuration.nix</code>
<pre>
{
  imports = [ <nixpkgs/nixos/modules/virtualisation/lxc-container.nix> ];
</pre>
<pre></pre>
<pre>
services.openssh.enable = false;
</pre>
<pre></pre>
<pre>
  environment.systemPackages = with pkgs; [
    ddate
  ]; 
</pre>
<pre></pre>
<pre>
}
</pre>
: <code>nixos-rebuild switch</code>
<pre>
building Nix...
building the system configuration...
</pre>
<pre></pre>
: <code>ddate</code>
<pre>
Today is Prickle-Prickle, the 65th day of Bureaucracy in the YOLD 3187
</pre>
|-
|-
| …
| (optional) check status of systemd
|  
|  
|  
|  
: <code>systemctl status</code>
<pre>
● nixos
    State: running
    Jobs: 0 queued
  Failed: 0 units
    Since: Mon 2021-10-11 11:52:39 UTC; 1h 24min ago
  CGroup: /
          ├─user.slice
          │ └─user-0.slice
          │  ├─session-c1.scope
          │  │ ├─393 /nix/store/61z6l8p3f14hgz29j607bg1d37sn5d86-shadow-4.8.1/bin/login --
          │  │ ├─506 -bash
          │  │ └─527 top
          │  └─user@0.service
          │    └─init.scope
          │      ├─499 /run/current-system/systemd/lib/systemd/systemd --user --deserialize 17
          │      └─500 (sd-pam
          ├─.lxc
          │ ├─ 290 /bin/sh
          │ ├─3315 systemctl status
          │ └─3316 less
          ├─init.scope
          │ └─1 systemd
          └─system.slice
            ├─systemd-journald.service
            │ └─200 /nix/store/n5j5fjn60nhck658j9ab84k8n9z24n1r-systemd-247.6/lib/systemd/systemd-journald
            ├─nix-daemon.service
            │ └─473 nix-daemon --daemon
            ├─console-getty.service
            │ └─392 agetty --login-program /nix/store/61z6l8p3f14hgz29j607bg1d37sn5d86-shadow-4.8.1/bin/login --noclear --keep-baud console 115200,38400,9600 linux
            ├─dhcpcd.service
            │ └─468 dhcpcd: [master] [ip4] [ip6]
            ├─nscd.service
            │ └─450 nscd
            ├─system-container\x2dgetty.slice
            │ └─container-getty@1.service
            │  └─394 agetty --login-program /nix/store/61z6l8p3f14hgz29j607bg1d37sn5d86-shadow-4.8.1/bin/login --noclear --keep-baud pts/1 115200,38400,9600 vt220
            ├─dbus.service
            │ └─390 /nix/store/qxpxg30bmj99rvvsacqzkgayzvxz6bb1-dbus-1.12.20/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only
            └─systemd-logind.service
              └─364 /nix/store/n5j5fjn60nhck658j9ab84k8n9z24n1r-systemd-247.6/lib/systemd/systemd-logind
</pre>
|-
|-
| …
| …
Line 177: Line 559:
|}
|}


; Questions:
==== Is there a need for non unprivileged NixOS containers? ====
:; Is there a scenario where you would like to have a privileged (<code>unprivileged = 0</code>) container?: I do not know.
 
:; Is there a configuration with cgroups versions 2 only - where cgroups version 1 is not needed - (so that is possible to rollback the manipulation of the pve lxc startup script (''/usr/share/perl5/PVE/LXC/Setup.pm''))? Or can we create such a (pre)build image (''tar'')?: I do not know.
; Is there a scenario where you would like to have a privileged (<code>unprivileged = 0</code>) container?: I do not know.
 
==== Is there a cgroup2 only NixOS container? ====
 
; Is there a configuration with cgroups versions 2 only - where cgroups version 1 is not needed - (so that is possible to rollback the manipulation of the pve lxc startup script (<code>/usr/share/perl5/PVE/LXC/Setup.pm</code>))? Or can we create such a (pre)build image (''tar'')?: I do not know.
 
: <code>grep cgroup /proc/filesystems</code>
<pre>
nodev cgroup
nodev cgroup2
</pre>
 
; Notes:
 
https://linuxcontainers.org/lxc/manpages//man5/lxc.container.conf.5.html
 
(pve) lxc configuration option <code>lxc.cgroup2.devices.allow: a</code>
 
(pve) lxc configuration option <code>lxc.cgroup.devices.deny = a</code>
 
https://wiki.debian.org/LXC/CGroupV2
 
https://search.nixos.org/options?channel=unstable&from=0&query=cgroup
 
https://git.proxmox.com/?p=pve-container.git;a=blob;f=src/PVE/LXC/Setup/Base.pm;h=a5b77d32f82747ea558d0398919414945b133dc0;hb=HEAD#l523
 
: <code>nano /etc/nixos/configuration.nix</code>
<pre>
  systemd.enableUnifiedCgroupHierarchy = true;
</pre>
 
==== Why there is a ''Service'' section in the service manager configuration in a NixOS container? ====
 
<pre></pre>
<pre>
starting systemd...
/etc/systemd/system.conf:13: Unknown section 'Service'. Ignoring.
</pre>
<pre></pre>
 
<code>/etc/systemd/system.conf</code>
<pre></pre>
<pre>
[Service]
ProtectProc=default
ProtectControlGroups=no
ProtectKernelTunables=no
</pre>
<pre></pre>
 
== documentation ==
 
proxmox
* https://pve.proxmox.com/pve-docs/
** https://pve.proxmox.com/pve-docs/pve-admin-guide.html#chapter_pct
*** https://pve.proxmox.com/pve-docs/chapter-pct.html
** https://pve.proxmox.com/pve-docs/pct.1.html
* https://pve.proxmox.com/wiki/Linux_Container
* https://pve.proxmox.com/wiki/Unprivileged_LXC_containers
lxc
* …
debian
* …
linux
* …
 
== articles ==
 
* https://blog.xirion.net/posts/nixos-proxmox-lxc/
*: with
** (PVE 6.3?)
** (NixOS 21.05?)
 
== upgrade (a PCT) to 21.11 ==
 
==== the folder ''/sbin/'' is missing ====
 
----
 
in your NixOS PCT
 
: <code>nix-channel --add https://nixos.org/channels/nixos-21.11 nixos</code>
 
: <code>nixos-rebuild switch --upgrade</code>
<pre></pre>
<pre>
ln: failed to create symbolic link '/sbin/init': No such file or directory
Activation script snippet 'installInitScript' failed (1)
</pre>
<pre></pre>
<pre>
warning: error(s) occurred while switching to the new configuration
</pre>
 
: <code>mkdir /sbin</code>
 
: <code>nixos-rebuild switch --upgrade</code>
<pre></pre>
 
----
 
on your PVE host
 
(for all the following starts of your NixOS PCT)
 
: <code>nano /etc/pve/lxc/1001.conf</code>
<pre></pre>
<pre>
#lxc.init.cmd: /init
lxc.init.cmd: /sbin/init
</pre>
<pre></pre>
 
----
 
== best (and easiest) way to get a "default" (working) shell in a pve ct after entering (<code>pct enter</code>) ==
 
:: <code>source /etc/set-environment</code>
: or
::: <code>/bin/sh -l</code>
:: or
::: <code>sh -l</code>
: or
:: <code>. /etc/profile</code>
 
or is possible to set an option in nixos or pve?
 
--[[User:Vater|Vater]] ([[User talk:Vater|talk]]) 17:47, 15 July 2024 (UTC)
Add topic
Retrieved from "https://wiki.nixos.org/wiki/Talk:Proxmox_Linux_Container"
Return to "Proxmox Linux Container" page.