modules: services: nextcloud: upgrade version

And update package names for grafana dashboards to avoid breaking the
config.

flake.lock

@@ -23,11 +23,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1626073055,
-        "narHash": "sha256-vocByfpVu6m9zvtJugDvmd6/9iT2HJuG4tmDICKd0lI=",
+        "lastModified": 1627501942,
+        "narHash": "sha256-rG2PUTgzmXvf/fSDCWKhlRwZjZs1/0TySC5eYHVJrmg=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "775cb20bd4af7781fbf336fb201df02ee3d544bb",
+        "rev": "2272fc312d5dc477e70816d94e550d08729b307b",
         "type": "github"
       },
       "original": {
@@ -39,11 +39,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1626046891,
-        "narHash": "sha256-Zt8saH+hAehXskW0iFAzk+iMillYoFBxvLReYNqGT9E=",
+        "lastModified": 1627391865,
+        "narHash": "sha256-tPoWBO9Nzu3wuX37WcnctzL6LoDCErJLnfLGqqmXCm4=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "d8f8f31af9d77a48220e4e8a301d1e79774cb7d2",
+        "rev": "8ecc61c91a596df7d3293603a9c2384190c1b89a",
         "type": "github"
       },
       "original": {
@@ -55,11 +55,11 @@
     },
     "nur": {
       "locked": {
-        "lastModified": 1626192709,
-        "narHash": "sha256-REQ9ByMk4crAX37e8YDZOBl9Kxn+nTfnnLwwxczcoP0=",
+        "lastModified": 1627534577,
+        "narHash": "sha256-cGVIlBkZZA9VvhXRRrWsTpkesJ/bSlGSPYPxafQVjSU=",
         "owner": "nix-community",
         "repo": "NUR",
-        "rev": "564ec91b61dab796f1af44502ff3a9c124f4d6da",
+        "rev": "0e1a91ef1d0460adfb5c669a9c0114f46e67956c",
         "type": "github"
       },
       "original": {

modules/services/default.nix

@@ -20,6 +20,7 @@
     ./pirate.nix
     ./podgrab.nix
     ./postgresql-backup.nix
+    ./postgresql.nix
     ./quassel.nix
     ./rss-bridge.nix
     ./sabnzbd.nix

modules/services/drone.nix

@@ -81,6 +81,7 @@ in
     users.groups.drone = { };
 
     services.postgresql = {
+      enable = true;
       ensureDatabases = [ "drone" ];
       ensureUsers = [{
         name = "drone";

modules/services/matrix.nix

@@ -63,7 +63,6 @@ in
   config = lib.mkIf cfg.enable {
     services.postgresql = {
       enable = true;
-      package = pkgs.postgresql_12;
       initialScript = pkgs.writeText "synapse-init.sql" ''
         CREATE ROLE "matrix-synapse" WITH LOGIN PASSWORD 'synapse';
         CREATE DATABASE "matrix-synapse" WITH OWNER "matrix-synapse"

modules/services/monitoring.nix

@@ -78,7 +78,7 @@ in
         dashboards = [
           {
             name = "Node Exporter";
-            options.path = pkgs.nur.repos.alarsyo.grafana-dashboards.node-exporter;
+            options.path = pkgs.nur.repos.alarsyo.grafanaDashboards.node-exporter;
             disableDeletion = true;
           }
         ];

modules/services/nextcloud.nix

@@ -30,7 +30,7 @@ in
   config = lib.mkIf cfg.enable {
     services.nextcloud = {
       enable = true;
-      package = pkgs.nextcloud21;
+      package = pkgs.nextcloud22;
       hostName = nextcloudDomain;
       home = "/var/lib/nextcloud";
       maxUploadSize = cfg.maxSize;

modules/services/nginx.nix

@@ -44,7 +44,7 @@
     services.grafana.provision.dashboards = [
       {
         name = "NGINX";
-        options.path = pkgs.nur.repos.alarsyo.grafana-dashboards.nginx;
+        options.path = pkgs.nur.repos.alarsyo.grafanaDashboards.nginx;
         disableDeletion = true;
       }
     ];

modules/services/postgresql.nix

@@ -0,0 +1,61 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.services.postgresql;
+in
+{
+  options.my.services.postgresql = with lib; {
+    enable = my.mkDisableOption "postgres configuration";
+
+    # Transient option to be enabled for migrations
+    upgradeScript = mkEnableOption "postgres upgrade script";
+  };
+
+  config = lib.mkMerge [
+    # Let other services enable postgres when they need it
+    (lib.mkIf cfg.enable {
+      services.postgresql = {
+        package = pkgs.postgresql_13;
+      };
+    })
+
+    # Taken from the manual
+    (lib.mkIf cfg.upgradeScript {
+      containers.temp-pg.config.services.postgresql = {
+        enable = true;
+        package = pkgs.postgresql_13;
+      };
+
+      environment.systemPackages =
+        let
+          newpg = config.containers.temp-pg.config.services.postgresql;
+        in
+        [
+          (pkgs.writeScriptBin "upgrade-pg-cluster" ''
+            #!/usr/bin/env bash
+
+            set -x
+            export OLDDATA="${config.services.postgresql.dataDir}"
+            export NEWDATA="${newpg.dataDir}"
+            export OLDBIN="${config.services.postgresql.package}/bin"
+            export NEWBIN="${newpg.package}/bin"
+
+            if [ "$OLDDATA" -ef "$NEWDATA" ]; then
+              echo "Cannot migrate to same data directory" >&2
+              exit 1
+            fi
+
+            install -d -m 0700 -o postgres -g postgres "$NEWDATA"
+            cd "$NEWDATA"
+            sudo -u postgres $NEWBIN/initdb -D "$NEWDATA"
+
+            systemctl stop postgresql    # old one
+
+            sudo -u postgres $NEWBIN/pg_upgrade \
+              --old-datadir "$OLDDATA" --new-datadir "$NEWDATA" \
+              --old-bindir $OLDBIN --new-bindir $NEWBIN \
+              "$@"
+          '')
+        ];
+    })
+  ];
+}