blob: 3066d1c36c0eaf59c0fca6e0796e17e8bf552d04 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
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"
"kvm"
"qemu-libvirtd"
"libvirtd"
];
openssh.authorizedKeys.keys = [
config.krebs.users.mb.pubkey
];
};
xo = {
name = "xo";
uid = 2323;
home = "/home/xo";
group = "users";
createHome = true;
shell = "/run/current-system/sw/bin/fish";
extraGroups = [
"audio"
"video"
"fuse"
"wheel"
"kvm"
"qemu-libvirtd"
"libvirtd"
];
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 = true;
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
git-preview
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; }
];
};
};
}
|