From 0bcabe1c4b1dd74af233674dfa6c6ec3011ce2c0 Mon Sep 17 00:00:00 2001
From: stuebinm
Date: Tue, 18 Jan 2022 09:43:24 +0100
Subject: restructuring directories

---
 flora/configuration.nix          |  72 ++++++++++++++++
 flora/hardware-configuration.nix |  25 ++++++
 flora/services/blog.nix          |   9 ++
 flora/services/cgit.nix          |  94 +++++++++++++++++++++
 flora/services/daemoniones.nix   |  34 ++++++++
 flora/services/dockerhub.nix     |  23 +++++
 flora/services/hedgedoc.nix      |  77 +++++++++++++++++
 flora/services/nginx.nix         |  17 ++++
 flora/services/picarones.nix     |  26 ++++++
 flora/services/pleroma.nix       | 178 +++++++++++++++++++++++++++++++++++++++
 flora/services/surveys.nix       |  23 +++++
 11 files changed, 578 insertions(+)
 create mode 100644 flora/configuration.nix
 create mode 100644 flora/hardware-configuration.nix
 create mode 100644 flora/services/blog.nix
 create mode 100644 flora/services/cgit.nix
 create mode 100644 flora/services/daemoniones.nix
 create mode 100644 flora/services/dockerhub.nix
 create mode 100644 flora/services/hedgedoc.nix
 create mode 100644 flora/services/nginx.nix
 create mode 100644 flora/services/picarones.nix
 create mode 100644 flora/services/pleroma.nix
 create mode 100644 flora/services/surveys.nix

(limited to 'flora')

diff --git a/flora/configuration.nix b/flora/configuration.nix
new file mode 100644
index 0000000..b2699b7
--- /dev/null
+++ b/flora/configuration.nix
@@ -0,0 +1,72 @@
+{ config, pkgs, ... }:
+
+{
+  imports = [
+    ./hardware-configuration.nix
+    # ./services/hedgedoc.nix
+    #./services/daemoniones.nix
+    ./services/nginx.nix
+    ./services/pleroma.nix
+    ./services/cgit.nix
+    # ./services/surveys.nix
+    #./services/picarones.nix
+    ./services/dockerhub.nix
+    ./services/blog.nix
+  ];
+  
+  # Use the GRUB 2 boot loader.
+  boot.loader.grub.enable = true;
+  boot.loader.grub.version = 2;
+  boot.loader.grub.devices = [ "/dev/sda" ];
+
+  networking = {
+    hostName = "flora";
+    
+    enableIPv6 = true;
+    defaultGateway6 = {
+      address = "fe80::1";
+      interface = "ens3";
+    };
+    
+    interfaces.ens3.ipv6.addresses = [ {
+      address = "2a01:4f9:c010:df15::1";
+      prefixLength = 64;
+    } ]; 
+    
+    useDHCP = false;
+    interfaces.ens3.useDHCP = true;
+
+    firewall.logRefusedConnections = false;
+    
+
+  };
+
+  services.fail2ban = {
+    enable = true;
+    bantime-increment.enable = true;
+    bantime-increment.overalljails = true;
+    bantime-increment.maxtime = "1312m";
+    ignoreIP = [ "88.133.194.232" ];
+  };
+  
+  services.logrotate = {
+    enable = true;
+    paths.nginx = {
+      path = "/var/log/nginx";
+      frequency = "weekly";
+    };
+  };
+
+  
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system = {
+    stateVersion = "20.09"; # Did you read the comment?
+  };
+
+}
+
diff --git a/flora/hardware-configuration.nix b/flora/hardware-configuration.nix
new file mode 100644
index 0000000..2ce21f4
--- /dev/null
+++ b/flora/hardware-configuration.nix
@@ -0,0 +1,25 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ modulesPath, config, lib, pkgs, inputs, ... }:
+
+{
+  imports =
+    [ "${modulesPath}/profiles/qemu-guest.nix"
+    ];
+
+  boot.initrd.availableKernelModules = [ "ata_piix" "virtio_pci" "xhci_pci" "sd_mod" "sr_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/5d31cad5-9076-4d2f-93f6-6af817bc368b";
+      fsType = "ext4";
+    };
+
+  swapDevices = [ ];
+
+  nix.maxJobs = lib.mkDefault 1;
+}
+
diff --git a/flora/services/blog.nix b/flora/services/blog.nix
new file mode 100644
index 0000000..056a63b
--- /dev/null
+++ b/flora/services/blog.nix
@@ -0,0 +1,9 @@
+{ config, lib, pkgs, inputs, ... }:
+
+{
+  services.nginx.virtualHosts."stuebinm.eu" = {
+    enableACME = true;
+    forceSSL = true;
+    locations."/".root = (import inputs.blog);
+  };
+}
diff --git a/flora/services/cgit.nix b/flora/services/cgit.nix
new file mode 100644
index 0000000..094bfd5
--- /dev/null
+++ b/flora/services/cgit.nix
@@ -0,0 +1,94 @@
+{pkgs, config, ...}:
+
+{
+  containers.cgit = { 
+    autoStart = true;
+    privateNetwork = true;
+    hostAddress6 = "fd00::42:12";
+    localAddress6 = "fd00::42:13";
+
+    bindMounts."/git" = {
+      hostPath = "/var/git/public";
+      isReadOnly = true;
+    };
+
+    config = {pkgs, config, ...}: {
+      services.lighttpd.enable = true;
+      services.lighttpd.extraConfig = ''server.use-ipv6 = "enable"'';
+      services.lighttpd.cgit = {
+        enable = true;
+        subdir = "git";
+        configText = ''
+          source-filter=${pkgs.cgit}/lib/cgit/filters/syntax-highlighting.py
+          about-filter=${pkgs.cgit}/lib/cgit/filters/about-formatting.sh
+          cache-size=1000
+          logo=/git/cgit.png
+          favicon=/git/favicon.ico
+
+          # take css from an assumed repo `config`
+          css=/git/config/plain/cgit.css
+
+          # remove .git extensions from repo names
+          remove-suffix=1
+
+          # readme formats which may be parsed
+          readme=:README.md
+          readme=:README
+          readme=:README.txt
+          readme=:README.org
+
+          # allow cloning repos
+          enable-http-clone=1
+                  
+          enable-follow-links=1
+          enable-html-serving=1
+          enable-index-owner=0
+
+          mimetype.css=text/css
+          mimetype.jpg=image/jpeg
+          mimetype.jpeg=image/jpeg
+          mimetype.pdf=application/pdf
+          mimetype.png=image/png
+          mimetype.svg=image/svg+xml
+
+          # some nice formatting
+          root-title=An Assortment of Stuff
+          root-desc=hand-squished into git repos
+          enable-commit-graph=1
+          enable-log-linecount=1
+          enable-log-filecount=1
+          branch-sort=age
+          # suppress email addresses in html logs
+          noplainemail=1
+
+          # maximum file size for plain blobs in kilobyte
+          max-blob-size=100
+
+          cache-scanrc-ttl=1
+
+          scan-path=/git
+        '';
+      };
+
+      networking.firewall.allowedTCPPorts = [ 80 ];
+    };
+  };
+
+  services.nginx.recommendedProxySettings = true;
+  services.nginx.virtualHosts."stuebinm.eu" = {
+    locations."/git/".proxyPass = "http://[${config.containers.cgit.localAddress6}]";
+    enableACME = true;
+    forceSSL = true;
+  };
+
+  # user for git repo administration
+  users.users.git = {
+    openssh.authorizedKeys.keys = config.users.users.root.openssh.authorizedKeys.keys;
+    home = "/var/git";
+    isNormalUser = true;
+    packages = [ pkgs.git ];
+  };
+
+  networking.firewall.allowedTCPPorts = [ 80 443 ];
+
+}
diff --git a/flora/services/daemoniones.nix b/flora/services/daemoniones.nix
new file mode 100644
index 0000000..ae9d3cb
--- /dev/null
+++ b/flora/services/daemoniones.nix
@@ -0,0 +1,34 @@
+{ config, pkgs, ...}:
+
+{
+  systemd.services = 
+    let simpledaemon = name: command: {
+      enable = true;
+      description = name;
+      wantedBy = [ "multi-user.target" ];
+      serviceConfig.Type = "simple";
+      script = command;
+    };
+  in {
+    choclo = simpledaemon "choclo signalling server" "/root/simple-signalling/target/release/chaski -b 127.0.0.1:5000";
+    wasi = simpledaemon "wasi backend" "/root/wasi-minimal/target/release/wasi";
+#    picarones = simpledaemon "picarones backend" "/root/picarones-server/target/release/picarones -b 127.0.0.1:6000";
+  };
+
+  services.nginx = {
+    virtualHosts = 
+      let websocketproxy = addr: {
+        locations."/".proxyPass = addr;
+        forceSSL = true;
+        enableACME = true;
+        locations."/".proxyWebsockets = true;
+      };
+    in {
+      "wasi.stuebinm.eu" = websocketproxy "http://127.0.0.1:9000";
+      "choclo.stuebinm.eu" = websocketproxy "http://127.0.0.1:5000";
+#      "picarones.stuebinm.eu" = websocketproxy "http://127.0.0.1:6000";
+    };
+  };
+
+
+}
diff --git a/flora/services/dockerhub.nix b/flora/services/dockerhub.nix
new file mode 100644
index 0000000..c9b84b3
--- /dev/null
+++ b/flora/services/dockerhub.nix
@@ -0,0 +1,23 @@
+{ config, lib, pkgs, ... }:
+
+{
+  services.dockerRegistry = {
+    enable = true;
+    port = 6000;
+    enableRedisCache = false;
+    extraConfig = {
+      storage.maintenance.readonly.enabled = true;
+    };
+  };
+
+  services.nginx.virtualHosts."registry.stuebinm.eu" = {
+    locations."/" = {
+      proxyPass = "http://localhost:6000";
+      proxyWebsockets = true;
+    };
+    enableACME = true;
+    forceSSL = true;
+  };
+
+  services.nginx.clientMaxBodySize = "0";
+}
diff --git a/flora/services/hedgedoc.nix b/flora/services/hedgedoc.nix
new file mode 100644
index 0000000..038f99f
--- /dev/null
+++ b/flora/services/hedgedoc.nix
@@ -0,0 +1,77 @@
+{ config, lib, pkgs, ... }:
+let
+  hedgedoc-patched = pkgs.hedgedoc.overrideAttrs (old: {
+    src = pkgs.fetchgit {
+      url = "https://stuebinm.eu/git/hedgedoc";
+      rev = "b0f98a43381486995b99ed79e0eabb3af149dbf3";
+      sha256 = "1199k5q8wampkw2ri4wgwzqgh1ff0l4kdxx9h8ywqy2f7faf922c";
+    };
+  });
+in
+{
+    # Container containing CodiMD and its database
+  # has its own internal network; needs a reverse-proxy to be reachable from the outside
+  # TODO: persistent memory for pads
+  containers.codimd = { 
+    autoStart = true;
+    privateNetwork = true;
+    hostAddress6 = "fd00::42:10";
+    localAddress6 = "fd00::42:11";
+    
+    config = {config, pkgs, ... }: {
+      # open CodiMD port
+      networking.firewall.allowedTCPPorts = [ config.services.hedgedoc.configuration.port ];
+
+      # database (postgres 11), with default database reachable for CodiMD; no imperative config needed!
+      services.postgresql = {
+        enable = true;
+        package = pkgs.postgresql_11;
+        ensureDatabases = [ "codimd" ];
+        ensureUsers = [ {
+          name = "hedgedoc";
+          ensurePermissions = { "DATABASE codimd" = "ALL PRIVILEGES";};
+        } ];
+        # ugly workaround to allow CodiMD to login without password — this service has lots of options,
+        # but apparently not for authentification, which even needs to be forced …
+        authentication = pkgs.lib.mkForce ''
+          # Generated file; do not edit!
+          local all all              trust
+          host  codimd hedgedoc  ::1/18       trust
+          host  codimd codimd ::1/128      trust
+        '';
+      };
+      # CodiMD itself
+      services.hedgedoc = {
+        enable = true;
+        workDir = "/var/codimd/";
+        configuration = {
+          dbURL = "postgres:///codimd";
+          port = 3000;
+          domain = "nix.stuebinm.eu";
+          urlAddPort = false;
+          protocolUseSSL = true;
+          allowPDFExport = true;
+          host = "::";
+          allowEmailRegister = false;
+          allowFreeURL = true;
+          uploadsPath = "/var/codimd/uploads";
+          #email = false;
+        };
+      };
+
+      systemd.services.hedgedoc.serviceConfig.ExecStart = pkgs.lib.mkForce "${hedgedoc-patched}/bin/hedgedoc";
+    };
+  };
+
+    
+  networking.firewall.allowedTCPPorts = [ 80 443 ];
+
+  services.nginx.virtualHosts."nix.stuebinm.eu" = {
+    locations."/" = {
+      proxyPass = "http://[" + config.containers.codimd.localAddress6 + "]:3000";
+      proxyWebsockets = true;
+    };
+    forceSSL = true;
+    enableACME = true;
+  };
+}
diff --git a/flora/services/nginx.nix b/flora/services/nginx.nix
new file mode 100644
index 0000000..bbcacb7
--- /dev/null
+++ b/flora/services/nginx.nix
@@ -0,0 +1,17 @@
+{ config, lib, pkgs, ... }:
+
+{
+  networking.firewall.allowedTCPPorts = [ 80 443 ];
+
+  services.nginx = {
+    enable = true;
+    
+    recommendedOptimisation = true;
+    recommendedTlsSettings = true;
+    recommendedProxySettings = true;
+
+    appendHttpConfig = ''
+      add_header Permissions-Policy "interest-cohort=()";
+    '';
+  };
+}
diff --git a/flora/services/picarones.nix b/flora/services/picarones.nix
new file mode 100644
index 0000000..c2e3c7b
--- /dev/null
+++ b/flora/services/picarones.nix
@@ -0,0 +1,26 @@
+{config, pkgs, ...}:
+let
+  source = builtins.fetchGit {
+    url = "https://stuebinm.eu/git/picarones/";
+    rev = "0596b9f6c561daa67945adb81570efd30650dffd";
+  };
+in
+{
+
+  imports = [ source.outPath ];
+
+  services.picarones = {
+    enable = true;
+    frontend = {
+      enable = true;
+      domain = "picarones.stuebinm.eu";
+      proxyBackend = true;
+      config = {
+        enableACME = true;
+        forceSSL = true;
+      };
+    };
+  };
+
+  networking.firewall.allowedTCPPorts = [ 80 443 ];
+}
diff --git a/flora/services/pleroma.nix b/flora/services/pleroma.nix
new file mode 100644
index 0000000..e0f60ed
--- /dev/null
+++ b/flora/services/pleroma.nix
@@ -0,0 +1,178 @@
+{config, pkgs, inputs, ...}:
+
+
+let
+  domain = "pleroma.stuebinm.eu";
+in
+{
+
+  containers.pleroma = {
+    autoStart = true;
+    privateNetwork = true;
+    
+    hostAddress = "192.168.42.30";
+    localAddress = "192.168.42.31";
+    hostAddress6 = "fd00::42:30";
+    localAddress6 = "fd00::42:31";
+    
+    
+    config = {pkgs, config, ...}: {
+      
+      # generating the manual will fail when mixing nixos channels,
+      # so disable it here or this won't build at all.
+      documentation.enable = false;
+      
+      # pleroma has a cli tool for configuration
+      environment.systemPackages = [ pkgs.dnsutils ];
+    
+      services.pleroma = {
+        enable = true;
+
+
+        # package = (import inputs.nixpkgs-unstable {}).pleroma;
+        
+        # this is barely necessary at this point — all that's
+        # set in here is the default_signer for joken, and the
+        # secret_key_base and signing_salt for phoenix.
+        secretConfigFile = "/var/lib/pleroma/secrets.exs";
+        
+        # for a list of available config options, see
+        # https://docs-develop.pleroma.social/backend/configuration/cheatsheet/
+        # 
+        # Additionally, some parts of pleroma's config (e.g. Pleroma.Repo)
+        # are better documented in their respective libraries (in this
+        # case, see the documentation for Ecto on Adapters).
+        configs = [ ''
+          import Config
+
+          config :pleroma, Pleroma.Web.Endpoint,
+            url: [host: "${domain}", scheme: "https", port: 443],
+            http: [ip: {0, 0, 0, 0, 0, 0, 0, 0}, port: 4000]
+
+          config :pleroma, :instance,
+            name: "Pleroma",
+            limit: 5000,
+            registrations_open: false,
+            federating: true,
+            healthcheck: true,
+            allow_relay: true
+
+          config :pleroma, :media_proxy,
+            enabled: false,
+            redirect_on_failure: true
+
+          config :pleroma, Pleroma.Upload,
+            filters: [
+                Pleroma.Upload.Filter.Exiftool,
+                Pleroma.Upload.Filter.AnonymizeFilename,
+                Pleroma.Upload.Filter.Dedupe
+            ]
+            
+          config :pleroma, Pleroma.Uploaders.Local,
+            uploads: "/var/lib/pleroma/uploads"
+
+          config :pleroma, Pleroma.Repo,
+            adapter: Ecto.Adapters.Postgres,
+            username: "pleroma",
+            database: "pleroma",
+            socket_dir: "/run/postgresql",
+            pool_size: 10,
+            prepare: :named,
+            parameters: [
+                plan_cache_mode: "force_custom_plan"
+            ]
+
+
+
+          config :pleroma, :database, rum_enabled: false
+          config :pleroma, configurable_from_database: false
+
+          config :pleroma, :instance, static_dir: "/var/lib/pleroma/static"
+          
+        '' ];
+      };
+
+      # otherwise, the exiftool will fail to run
+      systemd.services.pleroma.path = [ pkgs.exiftool ];
+          
+      services.postgresql = {
+        enable = true;
+        package = pkgs.postgresql_12;
+        
+        ensureDatabases = [ "pleroma" ];
+        ensureUsers = [ {
+          name = "pleroma";
+          ensurePermissions."DATABASE pleroma" = "ALL PRIVILEGES";
+        } ];
+        
+        # give pleroma access. must be done with lib.mkForce, for some reason
+        authentication = pkgs.lib.mkForce ''
+          # Generated file; do not edit!
+          local all all              trust
+          host  pleroma pleroma ::1/128      trust
+        '';
+        
+        # pleroma wants to do some initial config on startup, which it
+        # can't do by itself since those needs superuser access
+        #
+        # unfortunatly, this is executed /before/ the database is created,
+        # i.e. we have to create user and database by hand, even though
+        # they would otherwise created by ensureUsers / ensureDatabse.
+        # Using those does still prevent us from accidentally deleting
+        # them, though (but not from deleting the database's content!)
+        initialScript = pkgs.writeScript "postgres-pleroma-initial" ''
+          CREATE USER pleroma;
+          CREATE DATABASE pleroma OWNER pleroma;
+          \c pleroma;
+          --Extensions made by ecto.migrate that need superuser access
+          CREATE EXTENSION IF NOT EXISTS citext;
+          CREATE EXTENSION IF NOT EXISTS pg_trgm;
+          CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+        '';
+      };
+        
+      networking.firewall.allowedTCPPorts = [ 4000 10022 ];
+    };
+  };
+  
+  # give the container access to the external internet (necessary for
+  # fetching content from other instances). Doesn't appear to work with
+  # IPv6, though ...
+  networking.nat = {
+    enable = true;
+    internalInterfaces = [ "ve-pleroma" ];
+    externalInterface = "ens3";
+    
+  };
+  networking.firewall.allowedTCPPorts = [ 10022 ];
+  
+  services.nginx.virtualHosts."${domain}" = {
+    forceSSL = true;
+    enableACME = true;
+    
+    locations."/" = {
+      proxyPass = "http://[${config.containers.pleroma.localAddress6}]:4000";
+      proxyWebsockets = true;
+      # these headers are in the example config in the NixOS manual.
+      # take some time to figure out what they all do, and if these
+      # are necessary
+      extraConfig = ''
+        add_header 'Access-Control-Allow-Origin' '*' always;
+        add_header 'Access-Control-Allow-Methods' 'POST, PUT, DELETE, GET, PATCH, OPTIONS' always;
+        add_header 'Access-Control-Allow-Headers' 'Authorization, Content-Type, Idempotency-Key' always;
+        add_header 'Access-Control-Expose-Headers' 'Link, X-RateLimit-Reset, X-RateLimit-Limit, X-RateLimit-Remaining, X-Request-Id' always;
+        if ($request_method = OPTIONS) {
+            return 204;
+        }
+        add_header X-XSS-Protection "1; mode=block";
+        add_header X-Permitted-Cross-Domain-Policies none;
+        add_header X-Frame-Options DENY;
+        add_header X-Content-Type-Options nosniff;
+        add_header Referrer-Policy same-origin;
+        add_header X-Download-Options noopen;
+        client_max_body_size 16m;
+      '';
+    };
+  };
+}
+
diff --git a/flora/services/surveys.nix b/flora/services/surveys.nix
new file mode 100644
index 0000000..befa673
--- /dev/null
+++ b/flora/services/surveys.nix
@@ -0,0 +1,23 @@
+{pkgs, config, ...}:
+
+let survey = pkgs.fetchgit {
+      url = "https://stuebinm.eu/git/slightly-better-surveys";
+      rev = "c255269db0c739400b62d4c4041e3238b1045d22";
+      sha256 = "007q6s5xc3kn3dy1zj7hc94wyn495qam2x1020br3crwgpxy3hmp";
+    };
+in
+{
+  services.nginx.virtualHosts."survey.stuebinm.eu" = {
+    locations."/".root = survey.outPath + "/site";
+    locations."/upload".proxyPass = "http://localhost:8080";
+
+    enableACME = true;
+    forceSSL = true;
+  };
+
+  services.nginx.appendHttpConfig = ''
+    types {
+        application/wasm wasm;
+    }
+  '';
+}
-- 
cgit v1.2.3