modules/private/system/quatresaisons.nix

   1 { config, pkgs, lib, ... }:
   2 let
   3   serverSpecificConfig = config.myEnv.serverSpecific.quatresaisons;
   4   yarnModules = pkgs.yarn2nix-moretea.mkYarnModules rec {
   5     name = "landing";
   6     pname = name;
   7     version = "v1.0.0";
   8     packageJSON = "${pkgs.sources.webapps-landing}/package.json";
   9     yarnLock = "${pkgs.sources.webapps-landing}/yarn.lock";
  10     yarnNix = ../websites/tools/tools/landing/yarn-packages.nix;
  11   };
  12   toLanding = landingConfig: pkgs.stdenv.mkDerivation rec {
  13     pname = "landing";
  14     version = "v1.0.0";
  15     src = pkgs.sources.webapps-landing;
  16
  17     buildInputs = [ yarnModules pkgs.yarn2nix-moretea.yarn ];
  18     configurePhase = ''
  19       ln -s ${yarnModules}/node_modules .
  20     '';
  21     buildPhase = ''
  22       yarn build
  23     '';
  24     installPhase = ''
  25       cp -a dist $out
  26       cp -f ${landingConfig} $out/config.yml
  27       ln -s service-worker.js $out/worker.js
  28     '';
  29   };
  30   normalUsers = serverSpecificConfig.users;
  31   userquotas = pkgs.writeScriptBin "user_quotas" ''
  32     #!/usr/bin/env bash
  33     set -euo pipefail
  34
  35     if [ `whoami` != "root" ]; then
  36       list=$(id -u)
  37     else
  38       list="${builtins.concatStringsSep " " (lib.mapAttrsToList (n: v: builtins.toString v.uid) normalUsers)}"
  39     fi
  40
  41     get_size () {
  42       user=$1
  43       home=$((du -sbx /home/$user 2>/dev/null | cut -d" " -f1) || echo 0)
  44       nextcloud=$((du -sbx /home/var_lib/nextcloud/data/$user 2>/dev/null | cut -d"     " -f1) || echo 0)
  45       echo "Home: $(numfmt --to=iec "$home")"
  46       echo "Nextcloud: $(numfmt --to=iec "$nextcloud")"
  47       echo "Raw: $(($home + $nextcloud))"
  48     }
  49
  50     for user in $list; do
  51       group=$(id -ng "$user")
  52       size=$(get_size "$group")
  53       total=$(echo "$size" | grep ^Raw | cut -d" " -f2)
  54       decomp="    $group: $(numfmt --to=iec "$total")"
  55       decomp="$decomp;$(echo "$size" | grep -v ^Raw | sed -e "s/^/        /")"
  56
  57       sponsored=$(getent group $group | cut -d':' -f4)
  58       IFS=","
  59       for subuser in $sponsored; do
  60         size=$(get_size "$subuser")
  61         totalsub=$(echo "$size" | grep ^Raw | cut -d" " -f2)
  62         total=$(($total + $totalsub))
  63         decomp="$decomp;    $subuser: $(numfmt --to=iec "$totalsub")"
  64         decomp="$decomp;$(echo "$size" | grep -v ^Raw | sed -e "s/^/        /")"
  65       done
  66       echo "$group: $(numfmt --to=iec "$total")"
  67       echo "$decomp" | tr ";" "\n"
  68     done
  69   '';
  70   sponsoredUser = pkgs.writeScriptBin "sponsored_user" ''
  71     #!/usr/bin/env bash
  72
  73     set -euo pipefail
  74     [ -z "''${SUDO_USER+x}" ] && echo "Must be run with sudo" && exit 1
  75
  76     mygroup=$(id -ng $SUDO_USER)
  77
  78     sponsored=$(getent group $mygroup | cut -d':' -f4)
  79
  80     echo "Sponsored users: ''${sponsored:-<none>}"
  81
  82     log () {
  83       touch /var/log/sponsored_users
  84       chmod go-rwx /var/log/sponsored_users
  85       echo "`date` $mygroup $1" | LANG=C cat -v | tr '\012' ' ' | sed 's:$:\x0a:' >> /var/log/sponsored_users
  86     }
  87
  88     create_user () {
  89       log "creates $1: $2"
  90       useradd -m -G users,$mygroup -g $mygroup -p '!' "$1"
  91       touch /var/lib/nixos/sponsored_users
  92       chmod go-rwx /var/lib/nixos/sponsored_users
  93       echo "$mygroup $1 $2" >> /var/lib/nixos/sponsored_users
  94       (${pkgs.openldap}/bin/ldapadd -c -D cn=root,dc=salle-s,dc=org \
  95         -y ${config.secrets.fullPaths."ldap/sync_password"} 2>/dev/null >/dev/null || true) <<EOF
  96     dn: uid=$1,uid=$mygroup,ou=users,dc=salle-s,dc=org
  97     objectClass: inetOrgPerson
  98     cn: $1
  99     description:: $(echo -n "$2" | base64)
 100     sn: $1
 101     uid: $1
 102     EOF
 103       while ! passwd "$1"; do
 104         echo "please give an initial password"
 105       done
 106     }
 107
 108     delete_user () {
 109       IFS=",";
 110       for u in $sponsored; do
 111       if [ "$u" = "$1" ]; then
 112         log "deletes $1"
 113         userdel -r "$1"
 114         sed -i -e "/^$mygroup $1/d" /var/lib/nixos/sponsored_users
 115         ${pkgs.openldap}/bin/ldapdelete -D cn=root,dc=salle-s,dc=org \
 116           -y ${config.secrets.fullPaths."ldap/sync_password"} \
 117           "uid=$1,uid=$mygroup,ou=users,dc=salle-s,dc=org"
 118         echo "deleted"
 119         exit 0
 120       fi
 121       done
 122
 123       echo "User does not exist or does not belong to you";
 124       exit 1
 125     }
 126
 127     reset_password () {
 128       IFS=",";
 129       for u in $sponsored; do
 130       if [ "$u" = "$1" ]; then
 131         log "resets password for $1"
 132         passwd "$1"
 133         exit 0
 134       fi
 135       done
 136
 137       echo "User does not exist or does not belong to you";
 138       exit 1
 139     }
 140
 141     reset_ldap_password () {
 142       if [ "$1" = "$mygroup" ]; then
 143         log "resets web password"
 144         ${pkgs.openldap}/bin/ldappasswd -D cn=root,dc=salle-s,dc=org \
 145           -y ${config.secrets.fullPaths."ldap/sync_password"} \
 146           -S "uid=$mygroup,ou=users,dc=salle-s,dc=org"
 147       else
 148         IFS=",";
 149         for u in $sponsored; do
 150         if [ "$u" = "$1" ]; then
 151           log "resets web password of $1"
 152           ${pkgs.openldap}/bin/ldappasswd -D cn=root,dc=salle-s,dc=org \
 153             -y ${config.secrets.fullPaths."ldap/sync_password"} \
 154             -S "uid=$1,uid=$mygroup,ou=users,dc=salle-s,dc=org"
 155           exit 0
 156         fi
 157         done
 158
 159         echo "User does not exist or does not belong to you";
 160         exit 1
 161       fi
 162     }
 163
 164     show_help () {
 165       echo "sponsored_users create username realname"
 166       echo "    create a new sub-user attached to your account"
 167       echo "sponsored_users (delete|reset_password) username"
 168       echo "    delete a sub-user attached to your account or reset his password"
 169       echo "sponsored_users reset_ldap_password username"
 170       echo "    reset the web password of a sub-user or yourself"
 171     }
 172
 173     [ -z "''${1+x}" -o -z "''${2+x}" ] && { show_help ; exit 0; }
 174     action="$1"
 175     username="$2"
 176     shift
 177     shift
 178
 179     case "$action" in
 180       create)
 181         [ -z "''${1+x}" ] && { show_help ; echo "Conformément à la charte https://4c.salle-s.org/charte veuillez préciser le nom réel du futur utilisateur du compte $username, juste pour root." ; exit 1; }
 182         create_user "$username" "$*";
 183         ;;
 184       delete)
 185         delete_user "$username";
 186         ;;
 187       reset_password)
 188         reset_password "$username";
 189         ;;
 190       reset_ldap_password)
 191         reset_ldap_password "$username";
 192         ;;
 193       *)
 194         show_help
 195         ;;
 196     esac
 197   '';
 198 in
 199 {
 200   deployment = {
 201     targetUser = "root";
 202     targetHost = lib.head config.hostEnv.ips.main.ip4;
 203   };
 204   # ssh-keyscan quatresaison | nix-shell -p ssh-to-age --run ssh-to-age
 205   secrets.ageKeys = [ "age1yz8u6xvh2fltvyp96ep8crce3qx4tuceyhun6pwddfe0uvcrkarscxl7e7" ];
 206
 207   programs.ssh.package = pkgs.openssh.overrideAttrs(old: {
 208     PATH_PASSWD_PROG = "/run/wrappers/bin/passwd";
 209     buildFlags = [ "SSH_KEYSIGN=/run/wrappers/bin/ssh-keysign" ];
 210   });
 211
 212   imports = builtins.attrValues (import ../..) ++
 213     [ ./quatresaisons/nextcloud.nix ./quatresaisons/databases.nix ];
 214
 215   myEnv = import ../../../nixops/secrets/environment.nix;
 216
 217   fileSystems = {
 218     "/"     = { device = "/dev/disk/by-uuid/865931b4-c5cc-439f-8e42-8072c7a30634"; fsType = "ext4"; };
 219     "/home" = { device = "/dev/disk/by-uuid/76020bc4-5b88-464c-8952-9a59072c597f"; fsType = "ext4"; neededForBoot = true; };
 220     "/boot" = { device = "/dev/disk/by-uuid/0fb8421a-61e5-4ed5-a795-4dd3a9b2152a"; fsType = "ext4"; };
 221     "/var/lib" = { device = "/home/var_lib"; fsType = "none"; options = [ "defaults,bind" ]; };
 222   };
 223   powerManagement.cpuFreqGovernor = "powersave";
 224   hardware.enableRedistributableFirmware = true;
 225
 226   boot.initrd.availableKernelModules = [ "ahci" "megaraid_sas" "sd_mod" ];
 227   boot.initrd.kernelModules = [ "dm-snapshot" ];
 228   boot.kernelModules = [ "kvm-intel" ];
 229
 230   boot.loader.grub.enable = true;
 231   boot.loader.grub.version = 2;
 232   boot.loader.grub.device = "/dev/sda";
 233
 234   networking.firewall.enable = false;
 235   networking.firewall.allowedTCPPorts = [ 80 443 ];
 236   networking.useDHCP = false;
 237   networking.interfaces.eth0.useDHCP = true;
 238   networking.interfaces.eth0.ipv6.addresses = [
 239     { address = pkgs.lib.head config.hostEnv.ips.main.ip6; prefixLength = 64; }
 240   ];
 241   networking.defaultGateway6 = { address = "fe80::1"; interface = "eth0"; };
 242   services.udev.extraRules = ''
 243     ACTION=="add", SUBSYSTEM=="net", ATTR{address}=="c8:60:00:8b:2f:f0", NAME="eth0"
 244   '';
 245   security.pam.services.chage.text = ''
 246     auth      sufficient pam_rootok.so
 247     auth      required   pam_unix.so
 248     account   required   pam_unix.so
 249     session   required   pam_unix.so
 250     password  required   pam_permit.so
 251   '';
 252   security.pam.services.sshd.makeHomeDir = true;
 253   security.pam.services.passwd_default = {};
 254   security.pam.services.passwd.text = ''
 255     password        required        pam_cracklib.so enforce_for_root difok=2 minlen=8 dcredit=2 ocredit=2 retry=3
 256   '' + config.security.pam.services.passwd_default.text;
 257
 258   system.activationScripts.ldapSync = {
 259     deps = [ "secrets" "users" ];
 260     text =
 261       let
 262         com = "-D cn=root,dc=salle-s,dc=org -y ${config.secrets.fullPaths."ldap/sync_password"}";
 263       in ''
 264       # Add users
 265       ${pkgs.openldap}/bin/ldapadd -c ${com} -f ${config.secrets.fullPaths."ldap/ldaptree.ldif"} 2>/dev/null >/dev/null || true
 266
 267       # Remove obsolete users
 268       ${pkgs.openldap}/bin/ldapsearch -LLL ${com} -s one -b "ou=users,dc=salle-s,dc=org" "uid" |\
 269         grep "^uid" | ${pkgs.gnused}/bin/sed -e "s/uid: //" | while read ldapuser; do
 270
 271         for user in ${builtins.concatStringsSep " " (builtins.attrNames normalUsers)}; do
 272           if [ "$user" = "$ldapuser" ]; then
 273             continue 2
 274           fi
 275         done
 276         ${pkgs.openldap}/bin/ldapdelete -r ${com} uid=$ldapuser,ou=users,dc=salle-s,dc=org
 277       done
 278
 279       # Subusers
 280       if [ -f /var/lib/nixos/sponsored_users ]; then
 281         cat /var/lib/nixos/sponsored_users | while read mainUser subUser name; do
 282           (${pkgs.openldap}/bin/ldapadd -c ${com} 2>/dev/null >/dev/null || true) <<EOF
 283       dn: uid=$subUser,uid=$mainUser,ou=users,dc=salle-s,dc=org
 284       objectClass: inetOrgPerson
 285       cn: $subUser
 286       description:: $(echo -n "$name" | base64)
 287       sn: $subUser
 288       uid: $subUser
 289       EOF
 290         done
 291       fi
 292     '';
 293   };
 294
 295   secrets.keys = {
 296     "ldap/sync_password" = {
 297       permissions = "0400";
 298       text = serverSpecificConfig.ldap_sync_password;
 299     };
 300     "ldap/ldaptree.ldif" = {
 301       permissions = "0400";
 302       text = serverSpecificConfig.ldap_service_users
 303         + (builtins.concatStringsSep "\n" (lib.mapAttrsToList (n: v: ''
 304         dn: uid=${n},ou=users,dc=salle-s,dc=org
 305         objectClass: inetOrgPerson
 306         cn: ${n}
 307         description: ${v._meta.name or n} ${v._meta.email}
 308         sn: ${n}
 309         uid: ${n}
 310       '') normalUsers));
 311     };
 312   };
 313
 314   myServices.monitoring.enable = true;
 315   myServices.certificates.enable = true;
 316   users.mutableUsers = true;
 317   system.stateVersion = "21.03";
 318   programs.zsh.enable = true;
 319
 320   users.motd = ''
 321     Bienvenue sur quatresaisons.salle-s.org !
 322
 323     * Charte :
 324       https://4c.salle-s.org/charte
 325     * Gérer les utilisateurs unix additionnels :
 326       sudo sponsored_user -h
 327     * Applications web :
 328       * tableau de bord : https://4c.salle-s.org/
 329       * nextcloud : https://nextcloud.4c.salle-s.org/
 330   '';
 331
 332   users.groups =
 333     lib.mapAttrs (n: v: { gid = v.uid; }) normalUsers
 334     // { wwwrun = { gid = config.ids.gids.wwwrun; }; };
 335   users.users =
 336     let
 337       defaultNormal = n: {
 338         group = n;
 339         extraGroups = [ "users" ];
 340         isNormalUser = true;
 341       };
 342     in
 343       lib.mapAttrs (n: v: defaultNormal n // (lib.filterAttrs (k: _: k != "_meta") v)) normalUsers
 344       // {
 345         sponsored-separator = {
 346           uid = 10000;
 347           group = "users";
 348           home = "/var/empty";
 349           extraGroups = [];
 350           isNormalUser = true;
 351           createHome = false;
 352         };
 353         wwwrun = {
 354           group = "wwwrun";
 355           description = "Apache httpd user";
 356           uid = config.ids.uids.wwwrun;
 357           extraGroups = [ "keys" ];
 358         };
 359       };
 360
 361   system.activationScripts.usersPost = {
 362     deps = [ "users" "groups" ];
 363     text = builtins.concatStringsSep "\n" (lib.mapAttrsToList (n: v: ''
 364       if getent shadow "${n}" | grep -q '^${n}:${v.initialHashedPassword or "!"}:1'; then
 365         chage -d 0 "${n}"
 366         [ '${v.initialHashedPassword or "!"}' = '!' ] && passwd -d "${n}"
 367       fi
 368     '') normalUsers);
 369   };
 370   security.sudo.extraRules = [
 371     {
 372       commands = [
 373         { command = "${sponsoredUser}/bin/sponsored_user"; options = [ "NOPASSWD" ]; }
 374         { command = "/run/current-system/sw/bin/sponsored_user"; options = [ "NOPASSWD" ]; }
 375       ];
 376       users = builtins.attrNames normalUsers;
 377       runAs = "root";
 378     }
 379   ];
 380
 381   environment.systemPackages = [
 382     sponsoredUser userquotas
 383     pkgs.git pkgs.vim pkgs.rsync pkgs.strace pkgs.home-manager
 384     pkgs.inetutils pkgs.htop pkgs.iftop pkgs.bind.dnsutils pkgs.httpie
 385     pkgs.iotop pkgs.whois pkgs.ngrep pkgs.tcpdump pkgs.wireshark-cli
 386     pkgs.tcpflow pkgs.nmap pkgs.p0f pkgs.socat pkgs.lsof pkgs.psmisc
 387     pkgs.openssl pkgs.wget pkgs.pv pkgs.smartmontools pkgs.youtube-dl
 388     pkgs.unzip pkgs.octave pkgs.feh pkgs.xv pkgs.sshfs pkgs.gdb
 389     pkgs.file pkgs.lynx pkgs.tmux pkgs.awesome pkgs.libreoffice
 390     pkgs.evince pkgs.firefox pkgs.xcalib pkgs.python3 pkgs.python2
 391     pkgs.xorg.xkbcomp pkgs.subversion pkgs.xclip pkgs.imagemagick
 392     pkgs.bc pkgs.sox pkgs.zip pkgs.gnome3.gnome-screenshot
 393     pkgs.datadog-process-agent
 394   ];
 395
 396   services.websites.env.production = {
 397     enable = true;
 398     adminAddr = "httpd@immae.eu";
 399     httpdName = "Prod";
 400     modules = [ "http2" "deflate" "filter" ];
 401     extraConfig = [
 402       ''
 403         LogFormat "%{Host}i:%p %h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combinedVhost
 404         Protocols h2 http/1.1
 405         AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css text/javascript application/javascript
 406       '' ];
 407     ips =
 408       let ips = config.hostEnv.ips.main;
 409       in (ips.ip4 or []) ++ (ips.ip6 or []);
 410
 411     fallbackVhost = {
 412       certName    = "quatresaisons";
 413       hosts       = [ "quatresaisons.immae.eu" ];
 414       root        = pkgs.runCommand "empty" {} "mkdir $out && touch $out/index.html";
 415       extraConfig = [ "DirectoryIndex index.html" ];
 416     };
 417     vhostConfs.salle-s = {
 418       certName = "quatresaisons";
 419       addToCerts = true;
 420       hosts = [ "salle-s.org" ];
 421       root = toLanding ./quatresaisons/landing.yml;
 422       extraConfig = [
 423         ''
 424           <Directory ${toLanding ./quatresaisons/landing.yml}>
 425             AllowOverride None
 426             Require all granted
 427             DirectoryIndex index.html
 428           </Directory>
 429       ''
 430       ];
 431     };
 432     vhostConfs.tools = {
 433       certName = "quatresaisons";
 434       addToCerts = true;
 435       hosts = [ "4c.salle-s.org" "quatresaisons.salle-s.org" "quatre-saisons.salle-s.org" ];
 436       root = toLanding ./quatresaisons/landing_4c.yml;
 437       extraConfig = [
 438         ''
 439           Alias /charte ${serverSpecificConfig.charte_path}
 440           <Directory ${serverSpecificConfig.charte_path}>
 441             AllowOverride None
 442             Require all granted
 443             DirectoryIndex index.html index.txt
 444           </Directory>
 445
 446           <Directory ${toLanding ./quatresaisons/landing_4c.yml}>
 447             AllowOverride None
 448             Require all granted
 449             DirectoryIndex index.html
 450           </Directory>
 451       ''
 452       ];
 453     };
 454   };
 455   system.activationScripts.httpd = ''
 456     install -d -m 0750 -o wwwrun -g wwwrun /var/lib/php
 457     install -d -m 0750 -o wwwrun -g wwwrun /var/lib/php/sessions
 458   '';
 459
 460   services.phpfpm = {
 461     phpOptions = ''
 462       session.save_path = "/var/lib/php/sessions"
 463       post_max_size = 20M
 464       ; 15 days (seconds)
 465       session.gc_maxlifetime = 1296000
 466       ; 30 days (minutes)
 467       session.cache_expire = 43200
 468       '';
 469     settings = {
 470       log_level = "notice";
 471     };
 472   };
 473
 474 }