223 lines
8.9 KiB
Nix
223 lines
8.9 KiB
Nix
# docs:
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# - <https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/services/networking/pleroma.nix>
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# - <https://docs.pleroma.social/backend/configuration/cheatsheet/>
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# example config:
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# - <https://git.pleroma.social/pleroma/pleroma/-/blob/develop/config/config.exs>
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#
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# to run it in a oci-container: <https://github.com/barrucadu/nixfiles/blob/master/services/pleroma.nix>
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#
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# admin frontend: <https://fed.uninsane.org/pleroma/admin>
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{ config, lib, pkgs, ... }:
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let
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logLevel = "warning";
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# logLevel = "debug";
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in
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{
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config = lib.mkIf (config.sane.maxBuildCost >= 2) {
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sane.persist.sys.byStore.private = [
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# contains media i've uploaded to the server
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{ user = "pleroma"; group = "pleroma"; path = "/var/lib/pleroma"; method = "bind"; }
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];
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services.pleroma.enable = true;
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services.pleroma.secretConfigFile = config.sops.secrets.pleroma_secrets.path;
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services.pleroma.configs = [
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''
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import Config
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config :pleroma, Pleroma.Web.Endpoint,
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url: [host: "fed.uninsane.org", scheme: "https", port: 443],
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http: [ip: {127, 0, 0, 1}, port: 4040]
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# secret_key_base: "{secrets.pleroma.secret_key_base}",
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# signing_salt: "{secrets.pleroma.signing_salt}"
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config :pleroma, :instance,
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name: "Perfectly Sane",
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description: "Single-user Pleroma instance",
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email: "admin.pleroma@uninsane.org",
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notify_email: "notify.pleroma@uninsane.org",
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limit: 5000,
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registrations_open: true,
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account_approval_required: true,
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max_pinned_statuses: 5,
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external_user_synchronization: true
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# docs: https://hexdocs.pm/swoosh/Swoosh.Adapters.Sendmail.html
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# test mail config with sudo -u pleroma ./bin/pleroma_ctl email test --to someone@somewhere.net
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config :pleroma, Pleroma.Emails.Mailer,
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enabled: true,
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adapter: Swoosh.Adapters.Sendmail,
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cmd_path: "${lib.getExe' pkgs.postfix "sendmail"}"
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config :pleroma, Pleroma.User,
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restricted_nicknames: [ "admin", "uninsane", "root" ]
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config :pleroma, :media_proxy,
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enabled: false,
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redirect_on_failure: true
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#base_url: "https://cache.pleroma.social"
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# see for reference:
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# - `force_custom_plan`: <https://docs.pleroma.social/backend/configuration/postgresql/#disable-generic-query-plans>
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config :pleroma, Pleroma.Repo,
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adapter: Ecto.Adapters.Postgres,
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username: "pleroma",
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database: "pleroma",
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hostname: "localhost",
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pool_size: 10,
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prepare: :named,
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parameters: [
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plan_cache_mode: "force_custom_plan"
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]
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# XXX: prepare: :named is needed only for PG <= 12
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# prepare: :named,
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# password: "{secrets.pleroma.db_password}",
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# Configure web push notifications
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config :web_push_encryption, :vapid_details,
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subject: "mailto:notify.pleroma@uninsane.org"
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# public_key: "{secrets.pleroma.vapid_public_key}",
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# private_key: "{secrets.pleroma.vapid_private_key}"
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# config :joken, default_signer: "{secrets.pleroma.joken_default_signer}"
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config :pleroma, :database, rum_enabled: false
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config :pleroma, :instance, static_dir: "/var/lib/pleroma/instance/static"
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config :pleroma, Pleroma.Uploaders.Local, uploads: "/var/lib/pleroma/uploads"
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config :pleroma, configurable_from_database: false
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# strip metadata from uploaded images
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config :pleroma, Pleroma.Upload, filters: [Pleroma.Upload.Filter.Exiftool.StripLocation]
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# fix log spam: <https://git.pleroma.social/pleroma/pleroma/-/issues/1659>
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# specifically, remove LAN addresses from `reserved`
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config :pleroma, Pleroma.Web.Plugs.RemoteIp,
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enabled: true,
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reserved: ["127.0.0.0/8", "::1/128", "fc00::/7", "172.16.0.0/12"]
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# TODO: GET /api/pleroma/captcha is broken
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# there was a nixpkgs PR to fix this around 2022/10 though.
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config :pleroma, Pleroma.Captcha,
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enabled: false,
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method: Pleroma.Captcha.Native
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# (enabled by colin)
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# Enable Strict-Transport-Security once SSL is working:
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config :pleroma, :http_security,
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sts: true
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# docs: https://docs.pleroma.social/backend/configuration/cheatsheet/#logger
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config :logger,
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backends: [{ExSyslogger, :ex_syslogger}]
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config :logger, :ex_syslogger,
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level: :${logLevel}
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# policies => list of message rewriting facilities to be enabled
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# transparence => whether to publish these rules in node_info (and /about)
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config :pleroma, :mrf,
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policies: [Pleroma.Web.ActivityPub.MRF.SimplePolicy],
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transparency: true
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# reject => { host, reason }
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config :pleroma, :mrf_simple,
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reject: [ {"threads.net", "megacorp"}, {"*.threads.net", "megacorp"} ]
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# reject: [ [host: "threads.net", reason: "megacorp"], [host: "*.threads.net", reason: "megacorp"] ]
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# XXX colin: not sure if this actually _does_ anything
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# better to steal emoji from other instances?
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# - <https://docs.pleroma.social/backend/configuration/cheatsheet/#mrf_steal_emoji>
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config :pleroma, :emoji,
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shortcode_globs: ["/emoji/**/*.png"],
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groups: [
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"Cirno": "/emoji/cirno/*.png",
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"Kirby": "/emoji/kirby/*.png",
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"Bun": "/emoji/bun/*.png",
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"Yuru Camp": "/emoji/yuru_camp/*.png",
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]
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''
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];
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systemd.services.pleroma.path = [
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# something inside pleroma invokes `sh` w/o specifying it by path, so this is needed to allow pleroma to start
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pkgs.bash
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# used by Pleroma to strip geo tags from uploads
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pkgs.exiftool
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# config.sane.programs.exiftool.package #< XXX(2024-10-20): breaks image uploading
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# i saw some errors when pleroma was shutting down about it not being able to find `awk`. probably not critical
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# config.sane.programs.gawk.package
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# needed for email operations like password reset
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pkgs.postfix
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];
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systemd.services.pleroma = {
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# postgres can be slow to service early requests, preventing pleroma from starting on the first try
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serviceConfig.Restart = "on-failure";
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serviceConfig.RestartSec = "10s";
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# hardening (systemd-analyze security pleroma)
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# XXX(2024-07-28): this hasn't been rigorously tested:
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# possible that i've set something too strict and won't notice right away
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# make sure to test:
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# - image/media uploading
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serviceConfig.CapabilityBoundingSet = lib.mkForce [ "" "" ]; # nixos default is `~CAP_SYS_ADMIN`
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serviceConfig.LockPersonality = true;
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serviceConfig.NoNewPrivileges = true;
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serviceConfig.MemoryDenyWriteExecute = true;
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serviceConfig.PrivateDevices = lib.mkForce true; #< dunno why nixpkgs has this set false; it seems to work as true
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serviceConfig.PrivateMounts = true;
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serviceConfig.PrivateTmp = true;
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serviceConfig.PrivateUsers = true;
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serviceConfig.ProtectProc = "invisible";
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serviceConfig.ProcSubset = "all"; #< needs /proc/sys/kernel/overflowuid for bwrap
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serviceConfig.ProtectClock = true;
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serviceConfig.ProtectControlGroups = true;
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serviceConfig.ProtectHome = true;
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serviceConfig.ProtectKernelModules = true;
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serviceConfig.ProtectSystem = lib.mkForce "strict";
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serviceConfig.RemoveIPC = true;
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serviceConfig.RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6 AF_NETLINK";
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serviceConfig.RestrictSUIDSGID = true;
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serviceConfig.SystemCallArchitectures = "native";
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serviceConfig.SystemCallFilter = [ "@system-service" "@mount" "@sandbox" ]; #< "sandbox" might not actually be necessary
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serviceConfig.ProtectHostname = false; #< else brap can't mount /proc
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serviceConfig.ProtectKernelLogs = false; #< else breaks exiftool ("bwrap: Can't mount proc on /newroot/proc: Operation not permitted")
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serviceConfig.ProtectKernelTunables = false; #< else breaks exiftool
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serviceConfig.RestrictNamespaces = false; # media uploads require bwrap
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};
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# this is required to allow pleroma to send email.
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# raw `sendmail` works, but i think pleroma's passing it some funny flags or something, idk.
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# hack to fix that.
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users.users.pleroma.extraGroups = [ "postdrop" ];
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# Pleroma server and web interface
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# TODO: enable publog?
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services.nginx.virtualHosts."fed.uninsane.org" = {
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forceSSL = true; # pleroma redirects to https anyway
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enableACME = true;
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# inherit kTLS;
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locations."/" = {
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proxyPass = "http://127.0.0.1:4040";
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recommendedProxySettings = true;
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# documented: https://git.pleroma.social/pleroma/pleroma/-/blob/develop/installation/pleroma.nginx
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extraConfig = ''
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# client_max_body_size defines the maximum upload size
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client_max_body_size 16m;
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'';
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};
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};
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sane.dns.zones."uninsane.org".inet.CNAME."fed" = "native";
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sops.secrets."pleroma_secrets" = {
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owner = config.users.users.pleroma.name;
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};
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};
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}
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