Toto je starší verze dokumentu!
NixOS allows declarative configuration management of the whole system and deployed services.
To start using NixOS on vpsFree.cz, make sure you're on a node with vpsAdminOS, you can recognize it e.g. by the kernel version:
# uname -rv 5.9.2 #1-vpsAdminOS SMP Fri Oct 30 12:31:53 UTC 2020
If you have set your public SSH keys in vpsAdmin the key will be automatically deployed and you can login as root right away. To be able to login with a password you need to set the password manually after your container is created.
After installing NixOS (mainly talking about stable release) you have to know, that there is activated firewall by default blocking everything except ssh (port no. 22) so if you want to run some webserver (for example nginx) you have to tell firewall to not block your ports with this in your /etc/nixos/configuration.nix:nixos
networking.firewall.allowedTCPPorts = [ 80 443 ];
Then don'rt forget to do
nixos-rebuild switch
so your changes will take effect (without rebooting)
Configuration is available at
/etc/nixos/configuration.nix
This can be altered to change container configuration on the fly or for next reboot. Try changing container hostname and running
nixos-rebuild switch
to build new configuration and directly switch to it. To switch to new configuration after reboot (set as a default boot profile) use
nixos-rebuild boot
If you are using channels you can update your system by running
nixos-rebuild switch --upgrade
Packages can be installed system wide via configuration.nix or for local profile via
nix-env
To install vim use
nix-env -iA nixos.vim
To search for a package use
nix-env -qaP postgre
Consult NixOS manual for more https://nixos.org/nixos/manual/