added other services and descs

hosts/lab/default.nix

@@ -18,15 +18,36 @@
 
   services.uptime = {
     enable = true;
-    interval = "1min";
     displayDays = 90;
-    services = {
+    intro = ''
-      website = "https://ily.rs";
+      This status page is written in pure bash. It tracks 90 days of
-      forgejo = "https://git.ily.rs";
+      historical data per service. Each category may probe at its own
-      foundry = "https://foundry.ily.rs";
+      interval; that's noted next to the category description.
-      wiki = "https://wiki.ily.rs/health-ping";
+    '';
-      penfield = "https://penfield.ily.rs";
+    categories = [
-    };
+      {
+        description = "These first sites are all hosted personally.";
+        intervalSeconds = 60;
+        services = [
+          { name = "website";   url = "https://ily.rs"; }
+          { name = "guestbook"; url = "https://ily.rs/guestbook"; }
+          { name = "git";       url = "https://git.ily.rs"; }
+          { name = "records";   url = "https://c.ily.rs"; }
+          { name = "penfield";  url = "https://penfield.ily.rs"; }
+          { name = "wiki";      url = "https://wiki.ily.rs/health-ping"; }
+          { name = "foundry";   url = "https://foundry.ily.rs"; }
+        ];
+      }
+      {
+        description = "Other services I like to keep track of.";
+        intervalSeconds = 300;
+        hideUrls = true;
+        services = [
+          { name = "co-surf";   url = "https://co-surf.com"; }
+          { name = "frontline"; url = "https://essexfrontline.org.uk"; }
+        ];
+      }
+    ];
   };
 
   networking.hostName = "lab";

modules/uptime/default.nix

@@ -2,8 +2,62 @@
 let
   cfg = config.services.uptime;
 
-  servicesEnv = lib.concatStringsSep "\n"
+  serviceSubmodule = lib.types.submodule {
-    (lib.mapAttrsToList (name: url: "${name} ${url}") cfg.services);
+    options = {
+      name = lib.mkOption {
+        type = lib.types.str;
+        description = "Service name. Used as the log filename and the row label.";
+      };
+      url = lib.mkOption {
+        type = lib.types.str;
+        description = "URL to probe.";
+      };
+    };
+  };
+
+  categorySubmodule = lib.types.submodule {
+    options = {
+      description = lib.mkOption {
+        type = lib.types.str;
+        default = "";
+        description = "Free-form text shown above this category's table.";
+      };
+      intervalSeconds = lib.mkOption {
+        type = lib.types.int;
+        default = 60;
+        description = "Minimum interval between probes for services in this category.";
+      };
+      hideUrls = lib.mkOption {
+        type = lib.types.bool;
+        default = false;
+        description = "If true, omit the URL column when rendering services in this category.";
+      };
+      services = lib.mkOption {
+        type = lib.types.listOf serviceSubmodule;
+        default = [];
+        example = [{ name = "git"; url = "https://git.ily.rs"; }];
+        description = "Ordered list of services to probe. Render order matches list order.";
+      };
+    };
+  };
+
+  configFile = pkgs.writeText "uptime-config" (lib.concatStringsSep "\n" (
+    (lib.imap0 (i: cat:
+      "CAT\t${toString i}\t${toString cat.intervalSeconds}\t${if cat.hideUrls then "1" else "0"}\t${cat.description}"
+    ) cfg.categories)
+    ++
+    (lib.concatLists (lib.imap0 (i: cat:
+      map (svc: "SVC\t${toString i}\t${svc.name}\t${svc.url}") cat.services
+    ) cfg.categories))
+  ));
+
+  introFile = pkgs.writeText "uptime-intro" cfg.intro;
+
+  catIntervals = map (c: c.intervalSeconds) cfg.categories;
+  timerSeconds =
+    if catIntervals == []
+    then 60
+    else lib.foldl' (a: b: if a < b then a else b) 86400 catIntervals;
 
   runScript = pkgs.writeShellApplication {
     name = "uptime-run";
@@ -15,12 +69,6 @@ in
   options.services.uptime = {
     enable = lib.mkEnableOption "minimal text-only uptime status page";
 
-    interval = lib.mkOption {
-      type = lib.types.str;
-      default = "5min";
-      description = "Probe interval, passed to the timer's OnUnitActiveSec.";
-    };
-
     outputPath = lib.mkOption {
       type = lib.types.str;
       default = "/var/lib/uptime/status.txt";
@@ -31,11 +79,16 @@ in
       '';
     };
 
-    services = lib.mkOption {
+    intro = lib.mkOption {
-      type = lib.types.attrsOf lib.types.str;
+      type = lib.types.str;
-      default = {};
+      default = "";
-      example = { forgejo = "https://git.ily.rs"; };
+      description = "Free-form text shown at the top of the status page (before any categories).";
-      description = "Map of service name to URL to probe.";
+    };
+
+    categories = lib.mkOption {
+      type = lib.types.listOf categorySubmodule;
+      default = [];
+      description = "Ordered list of service categories. Each is rendered as its own table.";
     };
 
     retentionDays = lib.mkOption {
@@ -47,7 +100,7 @@ in
     displayDays = lib.mkOption {
       type = lib.types.int;
       default = 30;
-      description = "How many days of history to render in the long-term bar (1 cell = 1 day).";
+      description = "How many days of history to render in the long-term bar.";
     };
 
     displayHours = lib.mkOption {
@@ -75,7 +128,8 @@ in
       after = [ "network-online.target" ];
       wants = [ "network-online.target" ];
       environment = {
-        SERVICES = servicesEnv;
+        CONFIG_PATH = "${configFile}";
+        INTRO_PATH = "${introFile}";
         OUTPUT_PATH = cfg.outputPath;
         RETENTION_DAYS = toString cfg.retentionDays;
         DISPLAY_DAYS = toString cfg.displayDays;
@@ -97,7 +151,7 @@ in
       wantedBy = [ "timers.target" ];
       timerConfig = {
         OnBootSec = "1min";
-        OnUnitActiveSec = cfg.interval;
+        OnUnitActiveSec = "${toString timerSeconds}s";
         Unit = "uptime.service";
       };
     };

modules/uptime/run.sh

@@ -1,4 +1,5 @@
-: "${SERVICES:?must be set}"
+: "${CONFIG_PATH:?must be set}"
+: "${INTRO_PATH:?must be set}"
 : "${OUTPUT_PATH:?must be set}"
 : "${RETENTION_DAYS:?must be set}"
 : "${DISPLAY_DAYS:?must be set}"
@@ -10,21 +11,38 @@ mkdir -p "$state_dir"
 now=$(date -u +%s)
 retention_cutoff=$(( now - RETENTION_DAYS * 86400 ))
 
+# Parse categories into parallel arrays indexed by category number.
+cat_intervals=()
+cat_hideurls=()
+cat_descriptions=()
+while IFS=$'\t' read -r tag idx interval hideurls desc; do
+  if [ "$tag" = "CAT" ]; then
+    cat_intervals[$idx]=$interval
+    cat_hideurls[$idx]=$hideurls
+    cat_descriptions[$idx]=$desc
+  fi
+done < "$CONFIG_PATH"
+
+# Compute name column width across all services.
 max_name_len=0
-while IFS= read -r line; do
+while IFS=$'\t' read -r tag _ name _; do
-  [ -z "$line" ] && continue
+  [ "$tag" != "SVC" ] && continue
-  n=${line%% *}
+  (( ${#name} > max_name_len )) && max_name_len=${#name}
-  (( ${#n} > max_name_len )) && max_name_len=${#n}
+done < "$CONFIG_PATH"
-done <<< "$SERVICES"
 name_col=$(( max_name_len + 2 ))
 
-# Probe each service and rotate its log.
+# Probe phase: gate per-service by the owning category's intervalSeconds.
-while IFS= read -r line; do
+while IFS=$'\t' read -r tag cat_idx name url; do
-  [ -z "$line" ] && continue
+  [ "$tag" != "SVC" ] && continue
-  name=${line%% *}
+  interval=${cat_intervals[$cat_idx]}
-  url=${line#* }
   log="$state_dir/$name.log"
 
+  if [ -s "$log" ]; then
+    last_ts=$(tail -n 1 "$log" | awk '{print $1}')
+    age=$(( now - last_ts ))
+    (( age < interval )) && continue
+  fi
+
   code=$(curl -fsS --max-time 10 -o /dev/null -w '%{http_code}' "$url" 2>/dev/null || true)
   if [ -z "$code" ] || [ "$code" = "000" ]; then
     code="000"
@@ -38,15 +56,11 @@ while IFS= read -r line; do
 
   awk -v cutoff="$retention_cutoff" '$1 >= cutoff' "$log" > "$log.tmp"
   mv "$log.tmp" "$log"
-done <<< "$SERVICES"
+done < "$CONFIG_PATH"
 
-# Render. bucket_size and cell_count are parameters so we can add
+# Render helpers.
-# hour/minute granularity rows later without restructuring the awk.
 render_row() {
-  local log_file="$1"
+  local log_file="$1" now_arg="$2" bucket_size="$3" cells="$4"
-  local now_arg="$2"
-  local bucket_size="$3"
-  local cells="$4"
 
   if [ ! -s "$log_file" ]; then
     local pad
@@ -89,18 +103,6 @@ render_row() {
     }' "$log_file"
 }
 
-day_bar_cells=30
-day_bucket=$(( DISPLAY_DAYS * 86400 / day_bar_cells ))
-days_per_cell=$(( DISPLAY_DAYS / day_bar_cells ))
-if (( days_per_cell == 1 )); then
-  day_unit="1 day"
-else
-  day_unit="$days_per_cell days"
-fi
-
-hour_bar_cells="$DISPLAY_HOURS"
-hour_bucket=3600
-
 scale_bar() {
   local cells="$1" left="$2" right="$3"
   local fill=$(( cells - ${#left} - ${#right} ))
@@ -123,28 +125,71 @@ center() {
   fi
 }
 
+human_interval() {
+  local s="$1"
+  if   (( s < 60 ));   then printf '%d seconds' "$s"
+  elif (( s == 60 ));  then printf '1 minute'
+  elif (( s < 3600 )); then printf '%d minutes' "$(( s / 60 ))"
+  elif (( s == 3600 )); then printf '1 hour'
+  else                       printf '%d hours' "$(( s / 3600 ))"
+  fi
+}
+
+day_bar_cells=30
+day_bucket=$(( DISPLAY_DAYS * 86400 / day_bar_cells ))
+days_per_cell=$(( DISPLAY_DAYS / day_bar_cells ))
+if (( days_per_cell == 1 )); then
+  day_unit="1 day"
+else
+  day_unit="$days_per_cell days"
+fi
+
+hour_bar_cells="$DISPLAY_HOURS"
+hour_bucket=3600
+
 day_scale=$(scale_bar "$day_bar_cells" "<-${DISPLAY_DAYS}d" "now->")
 hour_scale=$(scale_bar "$hour_bar_cells" "<-${DISPLAY_HOURS}h" "now->")
+day_label=$(center "$day_bar_cells" "1 cell = $day_unit")
+hour_label=$(center "$hour_bar_cells" "1 cell = 1 hour")
 
 tmp="$OUTPUT_PATH.tmp"
 {
-  printf '# updated %s\n\n' "$(date -u -d "@$now" '+%Y-%m-%d %H:%M:%S UTC')"
+  printf '# updated %s\n' "$(date -u -d "@$now" '+%Y-%m-%d %H:%M:%S UTC')"
+
+  if [ -s "$INTRO_PATH" ]; then
+    intro_content=$(cat "$INTRO_PATH")
+    printf '\n%s\n' "$intro_content"
+  fi
+
+  n_cats=${#cat_intervals[@]}
+  for (( cat_idx = 0; cat_idx < n_cats; cat_idx++ )); do
+    desc=${cat_descriptions[$cat_idx]}
+    interval=${cat_intervals[$cat_idx]}
+
+    printf '\n'
+    if [ -n "$desc" ]; then
+      printf '%s (probed every %s)\n\n' "$desc" "$(human_interval "$interval")"
+    fi
 
     printf "%-${name_col}s%s  %s\n" '' "$day_scale" "$hour_scale"
-  while IFS= read -r line; do
+
-    [ -z "$line" ] && continue
+    while IFS=$'\t' read -r tag c_idx name url; do
-    name=${line%% *}
+      [ "$tag" != "SVC" ] && continue
-    url=${line#* }
+      [ "$c_idx" != "$cat_idx" ] && continue
       log="$state_dir/$name.log"
       read -r day_bar day_pct _ < <(render_row "$log" "$now" "$day_bucket" "$day_bar_cells")
       read -r hour_bar _ state < <(render_row "$log" "$now" "$hour_bucket" "$hour_bar_cells")
+      if [ "${cat_hideurls[$cat_idx]}" = "1" ]; then
+        printf "%-${name_col}s%s  %s  %s  %s%%\n" \
+          "$name" "$day_bar" "$hour_bar" "$state" "$day_pct"
+      else
         printf "%-${name_col}s%s  %s  %s  %s%%  %s\n" \
           "$name" "$day_bar" "$hour_bar" "$state" "$day_pct" "$url"
-  done <<< "$SERVICES"
+      fi
+    done < "$CONFIG_PATH"
 
-  printf "%-${name_col}s%s  %s\n" '' \
+    printf "%-${name_col}s%s  %s\n" '' "$day_label" "$hour_label"
-    "$(center "$day_bar_cells" "1 cell = $day_unit")" \
+  done
-    "$(center "$hour_bar_cells" "1 cell = 1 hour")"
 
   printf '\nlegend: = up   - degraded   _ down   . no data\n'
 } > "$tmp"