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|
with import <stockholm/lib>;
{ config, pkgs, ... }:
{
imports = [
{
users.users = {
root = {
openssh.authorizedKeys.keys = [
config.krebs.users.mb.pubkey
];
};
mb = {
name = "mb";
uid = 1337;
home = "/home/mb";
group = "users";
createHome = true;
shell = "/run/current-system/sw/bin/fish";
extraGroups = [
"audio"
"video"
"fuse"
"wheel"
];
openssh.authorizedKeys.keys = [
config.krebs.users.mb.pubkey
];
};
};
}
{
environment.variables = {
NIX_PATH = mkForce "secrets=/var/src/stockholm/null:/var/src";
};
}
(let ca-bundle = "/etc/ssl/certs/ca-bundle.crt"; in {
environment.variables = {
CURL_CA_BUNDLE = ca-bundle;
GIT_SSL_CAINFO = ca-bundle;
SSL_CERT_FILE = ca-bundle;
};
})
];
networking.hostName = config.krebs.build.host.name;
krebs = {
enable = true;
build.user = config.krebs.users.mb;
};
users.mutableUsers = false;
services.timesyncd.enable = mkForce true;
systemd.tmpfiles.rules = [
"d /tmp 1777 root root - -"
];
# multiple-definition-problem when defining environment.variables.EDITOR
environment.extraInit = ''
EDITOR=vim
'';
nixpkgs.config.allowUnfree = true;
environment.systemPackages = with pkgs; [
#stockholm
git
gnumake
jq
parallel
proot
populate
#style
most
rxvt_unicode.terminfo
#monitoring tools
htop
iotop
#network
iptables
iftop
tcpdump
#stuff for dl
aria2
#neat utils
fish
file
kpaste
krebspaste
mosh
pciutils
psmisc
tmux
untilport
usbutils
#unpack stuff
p7zip
(pkgs.writeDashBin "sshn" ''
${pkgs.openssh}/bin/ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no "$@"
'')
];
services.openssh = {
enable = true;
permitRootLogin = "yes";
passwordAuthentication = false;
hostKeys = [
# XXX bits here make no science
{ bits = 8192; type = "ed25519"; path = "/etc/ssh/ssh_host_ed25519_key"; }
];
};
programs.fish = {
enable = true;
shellInit = ''
function ssh_agent --description 'launch the ssh-agent and add the id_rsa identity'
if begin
set -q SSH_AGENT_PID
and kill -0 $SSH_AGENT_PID
and grep -q '^ssh-agent' /proc/$SSH_AGENT_PID/cmdline
end
echo "ssh-agent running on pid $SSH_AGENT_PID"
else
eval (command ssh-agent -c | sed 's/^setenv/set -Ux/')
end
set -l identity $HOME/.ssh/id_rsa
set -l fingerprint (ssh-keygen -lf $identity | awk '{print $2}')
ssh-add -l | grep -q $fingerprint
or ssh-add $identity
end
'';
promptInit = ''
function fish_prompt --description 'Write out the prompt'
set -l color_cwd
set -l suffix
set -l nix_shell_info (
if test "$IN_NIX_SHELL" != ""
echo -n " <nix-shell>"
end
)
switch "$USER"
case root toor
if set -q fish_color_cwd_root
set color_cwd $fish_color_cwd_root
else
set color_cwd $fish_color_cwd
end
set suffix '#'
case '*'
set color_cwd $fish_color_cwd
set suffix '>'
end
echo -n -s "$USER" @ (set_color yellow) (prompt_hostname) (set_color normal) "$nix_shell_info" ' ' (set_color $color_cwd) (prompt_pwd) (set_color normal) "$suffix "
end
'';
};
services.journald.extraConfig = ''
SystemMaxUse=1G
RuntimeMaxUse=128M
'';
krebs.iptables = {
enable = true;
tables = {
nat.PREROUTING.rules = [
{ predicate = "! -i retiolum -p tcp -m tcp --dport 22"; target = "REDIRECT --to-ports 0"; precedence = 100; }
{ predicate = "-p tcp -m tcp --dport 45621"; target = "REDIRECT --to-ports 22"; precedence = 99; }
];
nat.OUTPUT.rules = [
{ predicate = "-o lo -p tcp -m tcp --dport 45621"; target = "REDIRECT --to-ports 22"; precedence = 100; }
];
filter.INPUT.policy = "DROP";
filter.FORWARD.policy = "DROP";
filter.INPUT.rules = [
{ predicate = "-i retiolum -p udp --dport 60000:61000"; target = "ACCEPT";}
{ predicate = "-m conntrack --ctstate RELATED,ESTABLISHED"; target = "ACCEPT"; precedence = 10001; }
{ predicate = "-p icmp"; target = "ACCEPT"; precedence = 10000; }
{ predicate = "-p ipv6-icmp"; target = "ACCEPT"; v4 = false; precedence = 10000; }
{ predicate = "-i lo"; target = "ACCEPT"; precedence = 9999; }
{ predicate = "-p tcp --dport 22"; target = "ACCEPT"; precedence = 9998; }
{ predicate = "-p tcp -i retiolum"; target = "REJECT --reject-with tcp-reset"; precedence = -10000; }
{ predicate = "-p udp -i retiolum"; target = "REJECT --reject-with icmp-port-unreachable"; v6 = false; precedence = -10000; }
{ predicate = "-i retiolum"; target = "REJECT --reject-with icmp-proto-unreachable"; v6 = false; precedence = -10000; }
];
};
};
}
|
