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1 | { config, pkgs, name, lib, pkgs-no-overlay, secrets, ... }: | |
2 | { | |
3 | # ssh-keyscan dilion | nix-shell -p ssh-to-age --run ssh-to-age | |
4 | secrets.ageKeys = [ "age1x49n6qa0arkdpq8530s7umgm0gqkq90exv4jep97q30rfnzknpaqate06a" ]; | |
5 | boot = { | |
6 | loader = { | |
7 | grub = { | |
8 | devices = [ "/dev/sda" "/dev/sdb" "/dev/sdc" "/dev/sdd" ]; | |
9 | }; | |
10 | timeout = 1; | |
11 | }; | |
12 | blacklistedKernelModules = [ "nvidiafb" ]; | |
13 | supportedFilesystems = [ "zfs" ]; | |
14 | kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages; | |
15 | kernelModules = [ "kvm-intel" ]; | |
16 | initrd.availableKernelModules = [ "ahci" "sd_mod" ]; | |
17 | initrd.secrets = { | |
18 | "/boot/pass.key" = "/boot/pass.key"; | |
19 | }; | |
20 | kernel.sysctl."vm.nr_hugepages" = 256; # for xmr-stak | |
21 | # available in nixos-20.09 | |
22 | #zfs.requestEncryptionCredentials = [ "zpool/root" ]; | |
23 | }; | |
24 | powerManagement.cpuFreqGovernor = "powersave"; | |
25 | hardware.enableRedistributableFirmware = true; | |
26 | ||
27 | swapDevices = [ { label = "swap"; } ]; | |
28 | fileSystems = { | |
29 | "/" = { fsType = "zfs"; device = "zpool/root"; }; | |
30 | "/boot" = { fsType = "ext4"; device = "/dev/disk/by-uuid/fd1c511e-2bc0-49d5-b8bb-95e7e8c8c816"; }; | |
31 | "/etc" = { fsType = "zfs"; device = "zpool/root/etc"; }; | |
32 | "/home" = { fsType = "zfs"; device = "zpool/root/home"; }; | |
33 | "/tmp" = { fsType = "zfs"; device = "zpool/root/tmp"; }; | |
34 | "/var" = { fsType = "zfs"; device = "zpool/root/var"; }; | |
35 | "/data" = { fsType = "ext4"; label = "data"; }; | |
36 | "/nix" = { fsType = "ext4"; label = "nix"; }; | |
37 | }; | |
38 | ||
39 | services.udev.extraRules = '' | |
40 | ACTION=="add", SUBSYSTEM=="net", ATTR{address}=="10:bf:48:7f:e6:3b", NAME="eth0" | |
41 | ''; | |
42 | ||
43 | nixpkgs.config.permittedInsecurePackages = [ | |
44 | "python-2.7.18.6" # for nagios-cli | |
45 | ]; | |
46 | ||
47 | networking = { | |
48 | hostId = "27c3048d"; # generated with head -c4 /dev/urandom | od -A none -t x4 | |
49 | firewall.enable = false; | |
50 | interfaces."eth0".ipv4.addresses = | |
51 | [ { address = lib.head config.hostEnv.ips.main.ip4; prefixLength = 27; } ] | |
52 | ++ pkgs.lib.flatten (pkgs.lib.attrsets.mapAttrsToList | |
53 | (n: ips: map (ip: { address = ip; prefixLength = 32; }) (ips.ip4 or [])) | |
54 | (pkgs.lib.attrsets.filterAttrs (n: v: n != "main") config.hostEnv.ips)); | |
55 | interfaces."eth0".ipv6.addresses = | |
56 | [ { address = "2a01:4f8:141:53e7::"; prefixLength = 64; } ] | |
57 | ++ pkgs.lib.flatten (pkgs.lib.attrsets.mapAttrsToList | |
58 | (n: ips: map (ip: { address = ip; prefixLength = (if n == "main" && ip == pkgs.lib.head ips.ip6 then 64 else 128); }) (ips.ip6 or [])) | |
59 | config.hostEnv.ips); | |
60 | defaultGateway = { address = "176.9.10.225"; interface = "eth0"; }; | |
61 | defaultGateway6 = { address = "fe80::1"; interface = "eth0"; }; | |
62 | nameservers = [ | |
63 | "213.133.98.98" | |
64 | "213.133.99.99" | |
65 | "213.133.100.100" | |
66 | "2a01:4f8:0:a0a1::add:1010" | |
67 | "2a01:4f8:0:a102::add:9999" | |
68 | "2a01:4f8:0:a111::add:9898" | |
69 | ]; | |
70 | }; | |
71 | ||
72 | imports = [ | |
73 | secrets.nixosModules.users-config-dilion | |
74 | ./monitoring.nix | |
75 | ./vms.nix | |
76 | ]; | |
77 | ||
78 | myServices.vms.libvirt-guests = { | |
79 | buildbot = { | |
80 | pool = "zfspool"; | |
81 | network = "immae"; | |
82 | cpus = 1; | |
83 | memory = 3; | |
84 | diskSize = 10; | |
85 | destroyVolumeOnExit = true; | |
86 | }; | |
87 | }; | |
88 | myServices.vms.libvirt-images = { | |
89 | nixos = ./vms/base_configuration.nix; | |
90 | buildbot = ./vms/buildbot_configuration.nix; | |
91 | }; | |
92 | myServices.vms.libvirt-networks.immae = { | |
93 | bridgeNumber = 1; | |
94 | ipRange = "192.168.100"; | |
95 | }; | |
96 | myServices.vms.libvirt-pools = { | |
97 | niximages = { | |
98 | type = "dir"; | |
99 | target = "/etc/libvirtd/base-images"; | |
100 | }; | |
101 | buildbot-disks = rec { | |
102 | type = "dir"; | |
103 | target = "/var/lib/libvirt/images/buildbot-disks"; | |
104 | preStart = '' | |
105 | mkdir -p ${target} | |
106 | ''; | |
107 | }; | |
108 | zfspool = { | |
109 | # pool-define-as --name zfspool --source-name zpool/libvirt --type zfs | |
110 | type = "zfs"; | |
111 | xml = '' | |
112 | <source> | |
113 | <name>zpool/libvirt</name> | |
114 | </source> | |
115 | ''; | |
116 | }; | |
117 | }; | |
118 | ||
119 | system.nssModules = [ pkgs.libvirt ]; | |
120 | system.nssDatabases.hosts = lib.mkForce [ "files" "libvirt_guest" "mymachines" "dns" "myhostname" ]; | |
121 | programs.zsh.enable = true; | |
122 | ||
123 | users.users.libvirt = { | |
124 | hashedPassword = "!"; | |
125 | shell = pkgs.bashInteractive; | |
126 | isSystemUser = true; | |
127 | group = "libvirtd"; | |
128 | packages = [ pkgs.libressl.nc ]; | |
129 | openssh.authorizedKeys.keys = [ | |
130 | config.myEnv.buildbot.ssh_key.public | |
131 | config.myEnv.sshd.rootKeys.ismael_flony | |
132 | ]; | |
133 | }; | |
134 | ||
135 | users.groups.backup = {}; | |
136 | users.users.backup = { | |
137 | hashedPassword = "!"; | |
138 | isSystemUser = true; | |
139 | extraGroups = [ "keys" ]; | |
140 | group = "backup"; | |
141 | shell = pkgs.bashInteractive; | |
142 | openssh.authorizedKeys.keys = let | |
143 | zreplConfig = "/etc/zrepl/zrepl.yml"; | |
144 | in | |
145 | ["command=\"${pkgs.zrepl}/bin/zrepl stdinserver --config ${zreplConfig} eldiron\",restrict ${config.myEnv.zrepl_backup.ssh_key.public}"]; | |
146 | }; | |
147 | ||
148 | virtualisation.docker.enable = true; | |
149 | virtualisation.docker.storageDriver = "zfs"; | |
150 | virtualisation.libvirtd.enable = true; | |
151 | virtualisation.libvirtd.qemu.package = pkgs-no-overlay.qemu; | |
152 | systemd.services.libvirtd.path = lib.mkAfter [ config.boot.zfs.package ]; | |
153 | systemd.services.libvirtd.postStart = '' | |
154 | install -m 0770 -g libvirtd -d /var/lib/libvirt/images | |
155 | ''; | |
156 | ||
157 | time.timeZone = "Europe/Paris"; | |
158 | nix = { | |
159 | settings = { | |
160 | sandbox = "relaxed"; | |
161 | max-jobs = 8; | |
162 | substituters = [ "https://hydra.iohk.io" "https://cache.nixos.org" ]; | |
163 | trusted-public-keys = [ "hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ=" ]; | |
164 | trusted-users = [ "root" "@wheel"] ; | |
165 | }; | |
166 | extraOptions = '' | |
167 | keep-outputs = true | |
168 | keep-derivations = true | |
169 | allow-unsafe-native-code-during-evaluation = true | |
170 | experimental-features = nix-command flakes | |
171 | #Assumed in NUR | |
172 | allow-import-from-derivation = true | |
173 | ''; | |
174 | }; | |
175 | ||
176 | security.pki.certificateFiles = [ | |
177 | (pkgs.fetchurl { | |
178 | url = "http://downloads.e.eriomem.net/eriomemca.pem"; | |
179 | sha256 = "1ixx4c6j3m26j8dp9a3dkvxc80v1nr5aqgmawwgs06bskasqkvvh"; | |
180 | }) | |
181 | ]; | |
182 | ||
183 | myServices.monitoring.enable = true; | |
184 | security.acme.certs."${name}-immae" = { | |
185 | group = "immae"; | |
186 | domain = "dilion.immae.eu"; | |
187 | }; | |
188 | security.acme.certs."${name}" = { | |
189 | group = config.services.nginx.group; | |
190 | extraDomainNames = [ | |
191 | "dilion.immae.dev" | |
192 | ]; | |
193 | }; | |
194 | systemd.services.nginx.serviceConfig.ProtectHome = "read-only"; | |
195 | services.nginx = { | |
196 | enable = true; | |
197 | recommendedOptimisation = true; | |
198 | recommendedGzipSettings = true; | |
199 | recommendedProxySettings = true; | |
200 | virtualHosts = { | |
201 | "dilion.immae.dev" = { | |
202 | acmeRoot = config.security.acme.defaults.webroot; | |
203 | useACMEHost = name; | |
204 | forceSSL = true; | |
205 | locations."/".root = "/home/immae/www"; | |
206 | }; | |
207 | }; | |
208 | }; | |
209 | ||
210 | secrets.keys = { | |
211 | "zrepl/${name}.key" = { | |
212 | permissions = "0400"; | |
213 | text = config.myEnv.zrepl_backup.certs."${name}".key; | |
214 | user = "backup"; | |
215 | group = "root"; | |
216 | }; | |
217 | } // builtins.listToAttrs (map (x: lib.attrsets.nameValuePair "zrepl/certificates/${x}.crt" { | |
218 | permissions = "0400"; | |
219 | text = config.myEnv.zrepl_backup.certs."${x}".certificate; | |
220 | user = "backup"; | |
221 | group = "root"; | |
222 | }) (builtins.attrNames config.myEnv.zrepl_backup.certs)); | |
223 | ||
224 | environment.etc."mdadm.conf" = { | |
225 | enable = true; | |
226 | mode = "0644"; | |
227 | user = "root"; | |
228 | text = "MAILADDR ${config.myEnv.monitoring.email}"; | |
229 | }; | |
230 | ||
231 | ||
232 | systemd.services.zrepl.serviceConfig.User = "backup"; | |
233 | systemd.services.zrepl.path = [ pkgs.openssh ]; | |
234 | # pour eldiron: | |
235 | # zfs allow backup create,mount,receive,destroy,rename,snapshot,hold,bookmark,release zpool/backup | |
236 | # pour flony: | |
237 | # zfs allow backup hold,release,bookmark,snapshot,send zpool | |
238 | services.zrepl = { | |
239 | enable = true; | |
240 | settings = { | |
241 | global.control.sockpath = "/run/zrepl/control"; | |
242 | global.serve.stdinserver.sockdir = "/run/zrepl/stdinserver"; | |
243 | jobs = [ | |
244 | { | |
245 | type = "sink"; | |
246 | # must not change | |
247 | name = "backup-from-eldiron"; | |
248 | root_fs = "zpool/backup"; | |
249 | serve.type = "tls"; | |
250 | serve.listen = ":19000"; | |
251 | serve.ca = config.secrets.fullPaths."zrepl/certificates/eldiron.crt"; | |
252 | serve.cert = config.secrets.fullPaths."zrepl/certificates/dilion.crt"; | |
253 | serve.key = config.secrets.fullPaths."zrepl/dilion.key"; | |
254 | serve.client_cns = [ "eldiron" ]; | |
255 | } | |
256 | { | |
257 | type = "source"; | |
258 | # must not change | |
259 | name = "backup-to-wd-zpool"; | |
260 | # not encrypted! | |
261 | serve.type = "tls"; | |
262 | serve.listen = ":19001"; | |
263 | serve.ca = config.secrets.fullPaths."zrepl/certificates/flony.crt"; | |
264 | serve.cert = config.secrets.fullPaths."zrepl/certificates/dilion.crt"; | |
265 | serve.key = config.secrets.fullPaths."zrepl/dilion.key"; | |
266 | serve.client_cns = [ "flony" ]; | |
267 | filesystems."zpool/libvirt<" = true; | |
268 | filesystems."zpool/root<" = true; | |
269 | snapshotting.type = "manual"; | |
270 | } | |
271 | { | |
272 | type = "source"; | |
273 | # must not change | |
274 | name = "backup-to-wd-zpool-docker"; | |
275 | # not encrypted! | |
276 | serve.type = "tls"; | |
277 | serve.listen = ":19002"; | |
278 | serve.ca = config.secrets.fullPaths."zrepl/certificates/flony.crt"; | |
279 | serve.cert = config.secrets.fullPaths."zrepl/certificates/dilion.crt"; | |
280 | serve.key = config.secrets.fullPaths."zrepl/dilion.key"; | |
281 | serve.client_cns = [ "flony" ]; | |
282 | filesystems."zpool/docker<" = true; | |
283 | snapshotting.type = "manual"; | |
284 | } | |
285 | ]; | |
286 | }; | |
287 | }; | |
288 | # This value determines the NixOS release with which your system is | |
289 | # to be compatible, in order to avoid breaking some software such as | |
290 | # database servers. You should change this only after NixOS release | |
291 | # notes say you should. | |
292 | # https://nixos.org/nixos/manual/release-notes.html | |
293 | system.stateVersion = "23.05"; # Did you read the comment? | |
294 | } | |
295 |