| 1 | { config, pkgs, ... }: |
| 2 | |
| 3 | { |
| 4 | systemd.services.ofborg-log-message-collector = { |
| 5 | description = "ofBorg log message collector"; |
| 6 | |
| 7 | wantedBy = [ "ofborg.target" ]; |
| 8 | bindsTo = [ "ofborg.target" ]; |
| 9 | restartTriggers = [ config.environment.etc."ofborg.json".source ]; |
| 10 | |
| 11 | stopIfChanged = false; |
| 12 | unitConfig.StartLimitIntervalSec = 0; |
| 13 | serviceConfig = { |
| 14 | # Filesystem stuff |
| 15 | ProtectSystem = "strict"; # Prevent writing to most of / |
| 16 | ProtectHome = true; # Prevent accessing /home and /root |
| 17 | PrivateTmp = true; # Give an own directory under /tmp |
| 18 | PrivateDevices = true; # Deny access to most of /dev |
| 19 | ProtectKernelTunables = true; # Protect some parts of /sys |
| 20 | ProtectControlGroups = true; # Remount cgroups read-only |
| 21 | RestrictSUIDSGID = true; # Prevent creating SETUID/SETGID files |
| 22 | PrivateMounts = true; # Give an own mount namespace |
| 23 | RemoveIPC = true; |
| 24 | UMask = "0027"; |
| 25 | |
| 26 | Restart = "always"; |
| 27 | RestartSec = "5s"; |
| 28 | ExecStart = "${pkgs.ofborg}/bin/log-message-collector /etc/ofborg.json"; |
| 29 | User = "ofborg-logs"; |
| 30 | Group = "ofborg-logs"; |
| 31 | |
| 32 | LogsDirectory = "ofborg"; |
| 33 | |
| 34 | # Capabilities |
| 35 | CapabilityBoundingSet = ""; # Allow no capabilities at all |
| 36 | NoNewPrivileges = true; # Disallow getting more capabilities. This is also implied by other options. |
| 37 | |
| 38 | # Kernel stuff |
| 39 | ProtectKernelModules = true; # Prevent loading of kernel modules |
| 40 | SystemCallArchitectures = "native"; # Usually no need to disable this |
| 41 | ProtectKernelLogs = true; # Prevent access to kernel logs |
| 42 | ProtectClock = true; # Prevent setting the RTC |
| 43 | |
| 44 | # Misc |
| 45 | LockPersonality = true; # Prevent change of the personality |
| 46 | ProtectHostname = true; # Give an own UTS namespace |
| 47 | RestrictRealtime = true; # Prevent switching to RT scheduling |
| 48 | MemoryDenyWriteExecute = true; # Maybe disable this for interpreters like python |
| 49 | PrivateUsers = true; # If anything randomly breaks, it's mostly because of this |
| 50 | RestrictNamespaces = true; |
| 51 | SystemCallFilter = "@system-service"; |
| 52 | }; |
| 53 | }; |
| 54 | |
| 55 | users.users.ofborg-logs = { |
| 56 | isSystemUser = true; |
| 57 | group = "ofborg-logs"; |
| 58 | description = "ofBorg logs user"; |
| 59 | }; |
| 60 | users.groups.ofborg-logs = { }; |
| 61 | |
| 62 | sops.secrets = { |
| 63 | "ofborg/log-message-collector-rabbitmq-password" = { |
| 64 | owner = "ofborg-logs"; |
| 65 | restartUnits = [ "ofborg-log-message-collector.service" ]; |
| 66 | sopsFile = ../../secrets/ofborg.core01.ofborg.org.yml; |
| 67 | }; |
| 68 | }; |
| 69 | } |