v0.1.6 — project aliases (closes #3)

Adds human-readable aliases for project groups (the wrapping label
around services), useful when orchestrators like Coolify or Dokploy
generate cryptic project keys.

- New server module `src/server/project-aliases.ts` with load/save
  helpers, a 64-char max, and control-char sanitization.
- New endpoints: GET /api/project-aliases, PUT /api/project-aliases,
  DELETE /api/project-aliases/:project. Aliases also returned in
  /api/init for first-paint hydration.
- GroupNode header is now click-to-edit: short names prefill so users
  can tweak them, long cryptic names start blank for a fresh alias.
  The compose suffix (PROD/DEV/etc) stays visible and is not part of
  the alias. Reset icon appears only when an alias differs from the
  original project key.
- App.tsx wires the alias state, the project filter dropdown shows
  the alias plus the compose suffix list joined by " - ".
- MonitoringPage uses the alias in: project filter dropdown, the
  totals card title, and per-service card subtitles (which show only
  THAT service's compose, not the whole project list).
- engine/layout.ts exports getComposeKey and stores the raw `project`
  key in group node data so the same alias scope matches the filter.
- i18n: 4 new keys (EN + ES) for rename / reset / save / cancel.

bun.lock

@@ -8,6 +8,7 @@
         "@modelcontextprotocol/sdk": "^1.27.1",
         "dockerode": "^4",
         "hono": "^4",
+        "html-to-image": "^1.11.13",
         "lucide-react": "^0.577.0",
         "yaml": "^2",
         "zod": "^3",
@@ -494,6 +495,8 @@
 
     "hono": ["hono@4.12.8", "", {}, "sha512-VJCEvtrezO1IAR+kqEYnxUOoStaQPGrCmX3j4wDTNOcD1uRPFpGlwQUIW8niPuvHXaTUxeOUl5MMDGrl+tmO9A=="],
 
+    "html-to-image": ["html-to-image@1.11.13", "", {}, "sha512-cuOPoI7WApyhBElTTb9oqsawRvZ0rHhaHwghRLlTuffoD1B2aDemlCruLeZrUIIdvG7gs9xeELEPm6PhuASqrg=="],
+
     "http-errors": ["http-errors@2.0.1", "", { "dependencies": { "depd": "~2.0.0", "inherits": "~2.0.4", "setprototypeof": "~1.2.0", "statuses": "~2.0.2", "toidentifier": "~1.0.1" } }, "sha512-4FbRdAX+bSdmo4AUFuS0WNiPz8NgFt+r8ThgNWmlrjQjt1Q7ZR9+zTlce2859x4KSXrwIsaeTqDoKQmtP8pLmQ=="],
 
     "iconv-lite": ["iconv-lite@0.7.2", "", { "dependencies": { "safer-buffer": ">= 2.1.2 < 3.0.0" } }, "sha512-im9DjEDQ55s9fL4EYzOAv0yMqmMBSZp6G0VvFyTMPKWxiSBHUj9NW/qqLmXUwXrrM7AvqSlTCfvqRb0cM8yYqw=="],

package.json

@@ -1,6 +1,6 @@
 {
   "name": "containerflow",
-  "version": "0.1.4",
+  "version": "0.1.6",
   "license": "AGPL-3.0-or-later",
   "author": "Jorge Gonzalez D. (RGJorge)",
   "type": "module",
@@ -21,6 +21,7 @@
     "@modelcontextprotocol/sdk": "^1.27.1",
     "dockerode": "^4",
     "hono": "^4",
+    "html-to-image": "^1.11.13",
     "lucide-react": "^0.577.0",
     "yaml": "^2",
     "zod": "^3"

src/client/App.tsx

@@ -18,12 +18,13 @@ import { useDocker } from "./hooks/useDocker";
 import { useServerConfig } from "./hooks/useServerConfig";
 import { I18nProvider, useT } from "./i18n";
 import { createStatsStore, StatsStoreContext } from "./hooks/useStatsStore";
-import { buildLayout, computeEdges, NODE_WIDTH, NODE_HEIGHT, GROUP_PADDING, GROUP_HEADER } from "./engine/layout";
+import { buildLayout, computeEdges, getComposeKey, NODE_WIDTH, NODE_HEIGHT, GROUP_PADDING, GROUP_HEADER } from "./engine/layout";
 import { DetailPanel } from "./panels/DetailPanel";
 import { NodeContextMenu } from "./components/NodeContextMenu";
 import { LoginScreen } from "./components/LoginScreen";
 import { OffsetEdge } from "./components/OffsetEdge";
 import { HeaderBar, type Page } from "./components/HeaderBar";
+import { ExportPngButton } from "./components/ExportPngButton";
 import { EdgeLegend } from "./components/EdgeLegend";
 import { ActionErrorToast } from "./components/ActionErrorToast";
 import { Wifi, WifiOff, ChevronDown, Check } from "lucide-react";
@@ -143,6 +144,37 @@ function Dashboard({ token }: { token: string }) {
   const [containerSettings, setContainerSettings] = useState<Record<string, { notificationsEnabled?: boolean; cpuThreshold?: number | null; memThreshold?: number | null }>>({});
   const [globalThresholds, setGlobalThresholds] = useState<{ cpu: number; mem: number }>({ cpu: 50, mem: 60 });
   const [discordEnabled, setDiscordEnabled] = useState(false);
+  // Project aliases — friendly names for cryptic project keys (Coolify, Dokploy, etc.)
+  const [projectAliases, setProjectAliases] = useState<Record<string, string>>({});
+  // Save / reset handler — passed to GroupNode via node data. Wrapped in a ref
+  // so the layout effect doesn't have to recompute every time the callback
+  // identity changes; GroupNode always gets the latest version.
+  const handleAliasChange = useCallback(async (project: string, newAlias: string) => {
+    const trimmed = newAlias.trim();
+    setProjectAliases((prev) => {
+      const next = { ...prev };
+      if (trimmed) next[project] = trimmed;
+      else delete next[project];
+      return next;
+    });
+    const headers: Record<string, string> = { "Content-Type": "application/json" };
+    if (token) headers["Authorization"] = `Bearer ${token}`;
+    try {
+      await fetch("/api/project-aliases", {
+        method: "PUT",
+        headers,
+        body: JSON.stringify({ project, alias: trimmed }),
+      });
+    } catch {
+      // On error, refetch from server to revert optimistic update.
+      fetch("/api/project-aliases", { headers })
+        .then((r) => r.ok ? r.json() : {})
+        .then(setProjectAliases)
+        .catch(() => {});
+    }
+  }, [token]);
+  const handleAliasChangeRef = useRef(handleAliasChange);
+  handleAliasChangeRef.current = handleAliasChange;
   useEffect(() => {
     const headers: Record<string, string> = {};
     if (token) headers["Authorization"] = `Bearer ${token}`;
@@ -150,6 +182,10 @@ function Dashboard({ token }: { token: string }) {
       .then((r) => r.ok ? r.json() : {})
       .then(setContainerSettings)
       .catch(() => {});
+    fetch("/api/project-aliases", { headers })
+      .then((r) => r.ok ? r.json() : {})
+      .then(setProjectAliases)
+      .catch(() => {});
     fetch("/api/discord-config", { headers })
       .then((r) => r.ok ? r.json() : null)
       .then((c: any) => {
@@ -364,7 +400,8 @@ function Dashboard({ token }: { token: string }) {
 
     const { nodes: newNodes } = buildLayout(filteredServices, filteredConnections);
 
-    // Mark service nodes as locked + inject effective thresholds for progress bar coloring
+    // Mark service nodes as locked + inject effective thresholds for progress bar coloring.
+    // For group nodes, inject the alias (if any) + the change handler.
     for (const n of newNodes) {
       if (n.type === "service") {
         const svc = filteredServices.find((s) => s.uid === n.id);
@@ -375,6 +412,15 @@ function Dashboard({ token }: { token: string }) {
           (n.data as any).cpuThreshold = notifsOn ? (cs?.cpuThreshold ?? globalThresholds.cpu) : undefined;
           (n.data as any).memThreshold = notifsOn ? (cs?.memThreshold ?? globalThresholds.mem) : undefined;
         }
+      } else if (n.type === "group") {
+        // Use the raw `project` from the layout (NOT the groupKey which includes
+        // the compose suffix). This way the alias matches what `service.project`
+        // is on individual services, and the filter dropdown shares the same key.
+        const project = (n.data as any).project as string | undefined;
+        if (project) {
+          (n.data as any).alias = projectAliases[project];
+          (n.data as any).onAliasChange = handleAliasChangeRef.current;
+        }
       }
     }
 
@@ -458,7 +504,7 @@ function Dashboard({ token }: { token: string }) {
         return result;
       });
     }
-  }, [filteredServices, filteredConnections, canInteract, containerSettings, globalThresholds, discordEnabled]);
+  }, [filteredServices, filteredConnections, canInteract, containerSettings, globalThresholds, discordEnabled, projectAliases]);
 
   // Recompute edges + handles on drag end (not every pixel)
   const recomputeEdges = useCallback((currentNodes: Node[]) => {
@@ -566,11 +612,11 @@ function Dashboard({ token }: { token: string }) {
 
       <ActionErrorToast errors={actionErrors} onDismiss={dismissActionError} onClearAll={clearActionErrors} />
 
-      {activePage === "monitoring" && <MonitoringPage events={events} token={token} services={services} eventLogStream={eventLogStream} notificationStream={notificationStream} onOpenServiceDetail={openServiceDetail} />}
+      {activePage === "monitoring" && <MonitoringPage events={events} token={token} services={services} eventLogStream={eventLogStream} notificationStream={notificationStream} onOpenServiceDetail={openServiceDetail} projectAliases={projectAliases} />}
       {activePage === "settings" && <SettingsPage projects={projects} servicesCount={services.length} token={token} />}
 
       {/* Canvas — inset (only visible on dashboard) */}
-      <div className={`flex-1 min-h-0 relative mx-2 mt-1 rounded-xl overflow-hidden ring-1 ring-slate-700/60 shadow-[inset_0_2px_12px_rgba(0,0,0,0.5)] ${activePage !== "dashboard" ? "hidden" : ""}`}>
+      <div id="dashboard-canvas" className={`flex-1 min-h-0 relative mx-2 mt-1 rounded-xl overflow-hidden ring-1 ring-slate-700/60 shadow-[inset_0_2px_12px_rgba(0,0,0,0.5)] ${activePage !== "dashboard" ? "hidden" : ""}`}>
         <ReactFlow
           onInit={(instance) => { reactFlowRef.current = instance; }}
           nodes={dimmedNodes}
@@ -641,7 +687,9 @@ function Dashboard({ token }: { token: string }) {
           proOptions={{ hideAttribution: true }}
         >
           <Background color="#374151" gap={30} size={2} />
-          <Controls position="bottom-left" />
+          <Controls position="bottom-left">
+            <ExportPngButton onError={(msg) => pushActionError("dashboard", "export", msg)} />
+          </Controls>
           <EdgeLegend />
           <MiniMap
             position="bottom-right"
@@ -659,7 +707,7 @@ function Dashboard({ token }: { token: string }) {
 
         {/* Project filter */}
         {projects.length > 1 && (
-          <div className="absolute top-3 right-3 z-10" ref={filterRef}>
+          <div data-no-export="true" className="absolute top-3 right-3 z-10" ref={filterRef}>
             <button
               onClick={() => setFilterOpen((v) => !v)}
               className="flex items-center gap-2 text-sm text-slate-400 bg-slate-800/80 backdrop-blur-sm hover:bg-slate-700/80 border border-slate-700/50 px-3 py-1.5 rounded-md transition-colors"
@@ -671,7 +719,7 @@ function Dashboard({ token }: { token: string }) {
               <ChevronDown size={14} className={`text-slate-500 transition-transform ${filterOpen ? "rotate-180" : ""}`} />
             </button>
             {filterOpen && (
-              <div className="absolute top-full right-0 mt-1.5 bg-slate-800 border border-slate-700 rounded-lg shadow-xl shadow-black/40 py-1.5 min-w-[220px] max-h-[280px] overflow-y-auto">
+              <div className="absolute top-full right-0 mt-1.5 bg-slate-800 border border-slate-700 rounded-lg shadow-xl shadow-black/40 py-1.5 min-w-[280px] max-h-[280px] overflow-y-auto">
                 {/* Select/Deselect all */}
                 <button
                   onClick={() => {
@@ -702,11 +750,14 @@ function Dashboard({ token }: { token: string }) {
                   const projectServices = services.filter((s) => s.project === p);
                   const running = projectServices.filter((s) => s.state === "running").length;
                   const stopped = projectServices.length - running;
+                  const display = projectAliases[p] || p;
+                  const composeKeys = [...new Set(projectServices.map((s) => getComposeKey(s.compose_file)))];
+                  const composeSuffix = composeKeys.join(" - ");
                   return (
                     <button
                       key={p}
                       onClick={() => toggleProject(p)}
-                      title={p}
+                      title={composeSuffix ? `${display} / ${composeSuffix}` : display}
                       className="flex items-center gap-2.5 w-full px-3.5 py-2 text-sm hover:bg-slate-700/60 transition-colors"
                     >
                       <div className={`w-4 h-4 rounded border flex items-center justify-center shrink-0 ${
@@ -714,7 +765,10 @@ function Dashboard({ token }: { token: string }) {
                       }`}>
                         {active && <Check size={12} className="text-white" />}
                       </div>
-                      <span className={`flex-1 min-w-0 truncate text-left ${active ? "text-slate-200" : "text-slate-500"}`}>{p}</span>
+                      <span className={`flex-1 min-w-0 truncate text-left uppercase ${active ? "text-slate-200" : "text-slate-500"}`}>
+                        {display}
+                        {composeSuffix && <span className="ml-1 text-xs text-slate-500">/ {composeSuffix}</span>}
+                      </span>
                       <span className="ml-auto flex items-center gap-1.5 text-xs shrink-0">
                         <span className="text-emerald-500/70">{running}</span>
                         <span className="text-slate-600">/</span>

src/client/components/ExportPngButton.tsx

@@ -0,0 +1,40 @@
+import { useState } from "react";
+import { ControlButton } from "@xyflow/react";
+import { Download, Loader2 } from "lucide-react";
+import { useT } from "../i18n";
+import { exportGraphAsPng, downloadPng } from "../utils/exportPng";
+
+interface Props {
+  onError?: (message: string) => void;
+}
+
+export function ExportPngButton({ onError }: Props) {
+  const { t } = useT();
+  const [busy, setBusy] = useState(false);
+
+  const handleClick = async () => {
+    if (busy) return;
+    setBusy(true);
+    try {
+      const { dataUrl } = await exportGraphAsPng();
+      downloadPng(dataUrl, window.location.hostname);
+    } catch (err) {
+      const code = err instanceof Error ? err.message : "UNKNOWN";
+      const message =
+        code === "EMPTY_GRAPH"
+          ? t("controls.exportPng.empty")
+          : code === "GRAPH_TOO_LARGE"
+            ? t("controls.exportPng.tooLarge")
+            : t("controls.exportPng.failed");
+      onError?.(message);
+    } finally {
+      setBusy(false);
+    }
+  };
+
+  return (
+    <ControlButton onClick={handleClick} title={t("controls.exportPng")} disabled={busy}>
+      {busy ? <Loader2 className="animate-spin" /> : <Download />}
+    </ControlButton>
+  );
+}

src/client/engine/layout.ts

@@ -9,7 +9,7 @@ export const GROUP_PADDING = 28;
 export const GROUP_HEADER = 44;
 const GROUP_GAP = 50;
 
-function getComposeKey(file: string): string {
+export function getComposeKey(file: string): string {
   if (!file) return "default";
   const match = file.match(/docker-compose\.?(.*)\.yml/);
   const key = match?.[1] || "";
@@ -127,12 +127,14 @@ export function buildLayout(
       .filter(Boolean);
     const subtitle = composeFiles.join(", ");
 
-    // Group node
+    // Group node. `project` is the raw project key (without the compose part);
+    // it's what the alias system uses so the same alias applies across all
+    // compose files of the same project and matches the filter dropdown.
     nodes.push({
       id: `group-${groupKey}`,
       type: "group",
       position: { x: groupX, y: 0 },
-      data: { label: getGroupLabel(groupKey), subtitle, count: svcs.length },
+      data: { label: getGroupLabel(groupKey), subtitle, count: svcs.length, project: svcs[0]?.project },
       style: {
         width: groupWidth,
         height: groupHeight,

src/client/i18n.tsx

@@ -20,6 +20,18 @@ const en = {
   "filter.projects": "Projects",
   "filter.all": "All",
 
+  // Canvas controls
+  "controls.exportPng": "Export graph as PNG",
+  "controls.exportPng.empty": "No containers to export",
+  "controls.exportPng.tooLarge": "Graph is too large to export at full quality",
+  "controls.exportPng.failed": "Failed to export graph",
+
+  // Group alias
+  "group.rename": "Rename project",
+  "group.resetAlias": "Reset to original name",
+  "group.saveAlias": "Save",
+  "group.cancelAlias": "Cancel",
+
   // Login
   "login.connecting": "Connecting...",
   "login.connect": "Connect",
@@ -279,6 +291,18 @@ const es: Record<TranslationKey, string> = {
   "filter.projects": "Proyectos",
   "filter.all": "Todos",
 
+  // Canvas controls
+  "controls.exportPng": "Exportar grafo como PNG",
+  "controls.exportPng.empty": "No hay containers para exportar",
+  "controls.exportPng.tooLarge": "El grafo es muy grande para exportar en alta calidad",
+  "controls.exportPng.failed": "Error al exportar el grafo",
+
+  // Group alias
+  "group.rename": "Renombrar proyecto",
+  "group.resetAlias": "Restaurar nombre original",
+  "group.saveAlias": "Guardar",
+  "group.cancelAlias": "Cancelar",
+
   // Login
   "login.connecting": "Conectando...",
   "login.connect": "Conectar",

src/client/nodes/GroupNode.tsx

@@ -1,11 +1,18 @@
-import { memo } from "react";
+import { memo, useEffect, useRef, useState } from "react";
 import type { NodeProps } from "@xyflow/react";
-import { Server, Wrench, Rocket, Box, Folder } from "lucide-react";
+import { Server, Wrench, Rocket, Box, Folder, Pencil, RotateCcw, Check, X } from "lucide-react";
+import { useT } from "../i18n";
 
 interface GroupNodeData {
   label: string;
   subtitle?: string;
   count?: number;
+  /** Original (raw) project key used to look up / save the alias. */
+  project?: string;
+  /** Current alias if set, else undefined / empty string. */
+  alias?: string;
+  /** Save handler — called with (project, newAlias). Empty newAlias = reset. */
+  onAliasChange?: (project: string, newAlias: string) => void;
   [key: string]: unknown;
 }
 
@@ -36,24 +43,141 @@ function getProjectColor(label: string) {
 }
 
 export const GroupNode = memo(function GroupNode({ data }: NodeProps) {
+  const { t } = useT();
   const d = data as unknown as GroupNodeData;
-  // Label is "PROJECT / COMPOSE" — match compose part for known colors
-  const parts = d.label.split(" / ");
-  const composePart = parts.length > 1 ? parts[parts.length - 1] : d.label;
-  const known = groupConfig[composePart];
+  // Label is "PROJECT / COMPOSE" (uppercase). We let users alias only the
+  // project portion — the compose suffix (DEV / PROD / INFRA / docker-compose
+  // file name) stays as a structural hint and is also used for the icon match.
+  const labelParts = d.label.split(" / ");
+  const projectPart = labelParts[0] || d.label;
+  const composePart = labelParts.length > 1 ? labelParts.slice(1).join(" / ") : "";
+  const iconKey = composePart || d.label;
+  const known = groupConfig[iconKey];
   const proj = known ? null : getProjectColor(d.label);
   const config = known || { icon: Folder, color: proj!.color, borderColor: proj!.borderColor };
   const Icon = config.icon;
 
+  const hasAlias = Boolean(d.alias && d.alias.trim().length > 0);
+  const projectDisplay = hasAlias ? d.alias! : projectPart;
+  const displayName = composePart ? `${projectDisplay} / ${composePart}` : projectDisplay;
+  const canEdit = Boolean(d.project && d.onAliasChange);
+
+  const [editing, setEditing] = useState(false);
+  const [draft, setDraft] = useState(projectDisplay);
+  const inputRef = useRef<HTMLInputElement | null>(null);
+
+  // Focus input when entering edit mode. Cursor lands at the end of the
+  // current draft — no selection highlight, so users can just type to append.
+  useEffect(() => {
+    if (editing && inputRef.current) {
+      const el = inputRef.current;
+      el.focus();
+      const len = el.value.length;
+      el.setSelectionRange(len, len);
+    }
+  }, [editing]);
+
+  // Keep draft in sync if alias changes externally while not editing
+  useEffect(() => {
+    if (!editing) setDraft(projectDisplay);
+  }, [projectDisplay, editing]);
+
+  const startEdit = () => {
+    if (!canEdit) return;
+    // Short names (≤25 chars) → prefill so user can tweak (e.g. add a suffix).
+    // Long names (cryptic IDs from Coolify/Dokploy/etc) → start blank for a fresh alias.
+    setDraft(projectDisplay.length <= 25 ? projectDisplay : "");
+    setEditing(true);
+  };
+  const commit = () => {
+    if (!canEdit || !d.project) return;
+    // Reset if the user types the original project (case-insensitive) —
+    // no point storing an alias that's identical to the source key.
+    const finalAlias = draft.trim().toLowerCase() === projectPart.trim().toLowerCase() ? "" : draft;
+    d.onAliasChange?.(d.project, finalAlias);
+    setEditing(false);
+  };
+  const cancel = () => {
+    setEditing(false);
+    setDraft(projectDisplay);
+  };
+  const reset = () => {
+    if (!canEdit || !d.project) return;
+    d.onAliasChange?.(d.project, "");
+  };
+
   return (
-    <div className="absolute top-0 left-0 right-0 px-5 py-2.5 flex items-center gap-2.5">
-      <Icon size={16} style={{ color: config.color }} />
-      <span
-        className="text-sm font-semibold tracking-wider uppercase"
-        style={{ color: config.color }}
-      >
-        {d.label}
-      </span>
+    <div className="group absolute top-0 left-0 right-0 px-5 py-2.5 flex items-center gap-2.5">
+      <Icon size={16} style={{ color: config.color }} className="shrink-0" />
+      {editing ? (
+        <>
+          <input
+            ref={inputRef}
+            value={draft}
+            onChange={(e) => setDraft(e.target.value)}
+            onKeyDown={(e) => {
+              if (e.key === "Enter") commit();
+              if (e.key === "Escape") cancel();
+            }}
+            onBlur={commit}
+            maxLength={64}
+            className="text-sm font-semibold tracking-wider uppercase bg-transparent border-none outline-none p-0 min-w-0"
+            style={{ color: config.color, width: `${Math.max(draft.length * 9 + 8, 100)}px` }}
+            onMouseDown={(e) => e.stopPropagation()}
+            onClick={(e) => e.stopPropagation()}
+          />
+          {composePart && (
+            <span
+              className="text-sm font-semibold tracking-wider uppercase"
+              style={{ color: config.color }}
+            >
+              / {composePart}
+            </span>
+          )}
+          <button
+            onMouseDown={(e) => { e.preventDefault(); e.stopPropagation(); commit(); }}
+            className="text-emerald-400 hover:text-emerald-300 transition-colors"
+            title={t("group.saveAlias")}
+          >
+            <Check size={14} />
+          </button>
+          <button
+            onMouseDown={(e) => { e.preventDefault(); e.stopPropagation(); cancel(); }}
+            className="text-slate-500 hover:text-slate-300 transition-colors"
+            title={t("group.cancelAlias")}
+          >
+            <X size={14} />
+          </button>
+        </>
+      ) : (
+        <>
+          <span
+            className={`text-sm font-semibold tracking-wider uppercase ${canEdit ? "cursor-pointer hover:opacity-80" : ""}`}
+            style={{ color: config.color }}
+            onClick={canEdit ? startEdit : undefined}
+          >
+            {displayName}
+          </span>
+          {canEdit && (
+            <button
+              onClick={(e) => { e.stopPropagation(); startEdit(); }}
+              className="opacity-0 group-hover:opacity-100 text-slate-500 hover:text-slate-300 transition-opacity"
+              title={t("group.rename")}
+            >
+              <Pencil size={11} />
+            </button>
+          )}
+          {hasAlias && canEdit && (
+            <button
+              onClick={(e) => { e.stopPropagation(); reset(); }}
+              className="opacity-0 group-hover:opacity-100 text-slate-500 hover:text-slate-300 transition-opacity"
+              title={t("group.resetAlias")}
+            >
+              <RotateCcw size={11} />
+            </button>
+          )}
+        </>
+      )}
       {d.subtitle && (
         <span className="text-xs text-slate-600 font-mono truncate max-w-[220px]">
           {d.subtitle}
@@ -61,7 +185,7 @@ export const GroupNode = memo(function GroupNode({ data }: NodeProps) {
       )}
       <div className="flex-1 h-px" style={{ backgroundColor: config.borderColor }} />
       {d.count != null && (
-        <div className="flex items-center gap-1.5">
+        <div className="flex items-center gap-1.5 shrink-0">
           <Box size={12} style={{ color: config.borderColor }} />
           <span className="text-xs font-mono" style={{ color: config.borderColor }}>
             {d.count}

src/client/pages/MonitoringPage.tsx

@@ -7,6 +7,7 @@ import { StatsCard } from "../components/StatsCard";
 import { ThresholdBar } from "../components/ThresholdBar";
 import { Tooltip } from "../components/Tooltip";
 import { guessIcon } from "../nodes/ServiceNode";
+import { getComposeKey } from "../engine/layout";
 
 function timeAgo(ts: number): string {
   const diff = Math.floor((Date.now() / 1000) - ts);
@@ -85,9 +86,10 @@ interface MonitoringPageProps {
   eventLogStream: EventLogEntry[];
   notificationStream: NotificationLogEntry[];
   onOpenServiceDetail: (uid: string, tab?: "info" | "config" | "env" | "stats") => void;
+  projectAliases?: Record<string, string>;
 }
 
-export function MonitoringPage({ events, token, services, eventLogStream, notificationStream, onOpenServiceDetail }: MonitoringPageProps) {
+export function MonitoringPage({ events, token, services, eventLogStream, notificationStream, onOpenServiceDetail, projectAliases = {} }: MonitoringPageProps) {
   const { t } = useT();
   const [statsRange, setStatsRange] = useState<StatsRange>("1h");
   const [activeTab, setActiveTab] = useState<"history" | "events" | "notifications">("history");
@@ -235,12 +237,13 @@ export function MonitoringPage({ events, token, services, eventLogStream, notifi
   };
 
   // Labels
+  const aliasOrName = (p: string) => projectAliases[p] || p;
   const projectLabel = selectedProjects.size === 0
     ? t("monitoring.filterProject")
     : selectedProjects.size === allProjects.length
       ? t("monitoring.allProjects")
       : selectedProjects.size === 1
-        ? [...selectedProjects][0]
+        ? aliasOrName([...selectedProjects][0])
         : `${selectedProjects.size} ${t("filter.projects").toLowerCase()}`;
 
   const serviceLabel = selectedServices.size === 0
@@ -308,18 +311,24 @@ export function MonitoringPage({ events, token, services, eventLogStream, notifi
                   <div className="border-t border-slate-700/50 my-1" />
                   {allProjects.map((project) => {
                     const isSelected = selectedProjects.has(project);
+                    const composeKeys = [...new Set(services.filter((s) => s.project === project).map((s) => getComposeKey(s.compose_file)))];
+                    const composeSuffix = composeKeys.join(" - ");
                     return (
                       <button
                         key={project}
                         onClick={() => toggleProject(project)}
+                        title={composeSuffix ? `${aliasOrName(project)} / ${composeSuffix}` : aliasOrName(project)}
                         className="flex items-center gap-2.5 w-full px-3.5 py-2 text-sm hover:bg-slate-700/60 transition-colors"
                       >
-                        <div className={`w-4 h-4 rounded border flex items-center justify-center ${
+                        <div className={`w-4 h-4 rounded border flex items-center justify-center shrink-0 ${
                           isSelected ? "bg-cyan-500 border-cyan-500" : "border-slate-600"
                         }`}>
                           {isSelected && <Check size={12} className="text-white" />}
                         </div>
-                        <span className={isSelected ? "text-slate-200" : "text-slate-400"}>{project}</span>
+                        <span className={`min-w-0 truncate uppercase ${isSelected ? "text-slate-200" : "text-slate-400"}`}>
+                          {aliasOrName(project)}
+                          {composeSuffix && <span className="ml-1 text-xs text-slate-500">/ {composeSuffix}</span>}
+                        </span>
                       </button>
                     );
                   })}
@@ -453,7 +462,13 @@ export function MonitoringPage({ events, token, services, eventLogStream, notifi
                         ? ([...selectedServices][0].split("/").pop() || [...selectedServices][0])
                         : `${selectedServices.size} ${t("footer.containers")}`)
                     : selectedProjects.size === 1
-                      ? [...selectedProjects][0]
+                      ? (() => {
+                          const proj = [...selectedProjects][0];
+                          const display = aliasOrName(proj);
+                          const composeKeys = [...new Set(services.filter((s) => s.project === proj).map((s) => getComposeKey(s.compose_file)))];
+                          const suffix = composeKeys.join(" - ");
+                          return suffix ? `${display} / ${suffix.toUpperCase()}` : display;
+                        })()
                       : selectedProjects.size === allProjects.length
                         ? t("monitoring.allProjects")
                         : `${selectedProjects.size} ${t("filter.projects").toLowerCase()}`
@@ -478,6 +493,7 @@ export function MonitoringPage({ events, token, services, eventLogStream, notifi
                   globalRange={statsRange}
                   fallbackData={filteredHistory[svc] || []}
                   token={token}
+                  projectAliases={projectAliases}
                 />
               ))}
               </div>
@@ -581,7 +597,7 @@ function MonitoringTotalsCard({
   return (
     <div className="px-5 py-3 border-b border-slate-700/40 bg-slate-900/40">
       <div className="flex items-center gap-2 mb-2">
-        <span className="text-xs text-slate-300 font-medium truncate">{title}</span>
+        <span className="text-xs text-slate-300 font-medium truncate uppercase">{title}</span>
         <span className="text-[10px] text-slate-500">· {containerCount} {t("footer.containers")}</span>
       </div>
       <div className="grid grid-cols-2 gap-2">
@@ -637,6 +653,7 @@ interface MonitoringServiceCardProps {
   globalRange: StatsRange;
   fallbackData: StatsHistoryPoint[];
   token: string;
+  projectAliases: Record<string, string>;
 }
 
 function MonitoringServiceCard({
@@ -655,6 +672,7 @@ function MonitoringServiceCard({
   globalRange,
   fallbackData,
   token,
+  projectAliases,
 }: MonitoringServiceCardProps) {
   const { t } = useT();
   const [localRange, setLocalRange] = useState<StatsRange | null>(null);
@@ -692,9 +710,17 @@ function MonitoringServiceCard({
         <ServiceIcon uid={svc} services={services} />
         <div className="min-w-0">
           <span className="text-xs text-slate-300 font-medium truncate block">{shortName}</span>
-          {svc.includes("/") && (
-            <span className="text-[10px] text-slate-500 truncate block leading-tight">{svc.split("/")[0]}</span>
-          )}
+          {svc.includes("/") && (() => {
+            const proj = svc.split("/")[0];
+            const display = projectAliases[proj] || proj;
+            // Only show THIS service's compose (not the whole project's list).
+            const thisCompose = svcData ? getComposeKey(svcData.compose_file) : "";
+            return (
+              <span className="text-[10px] text-slate-500 truncate block leading-tight uppercase">
+                {display}{thisCompose && <span> / {thisCompose}</span>}
+              </span>
+            );
+          })()}
         </div>
         <div className="flex-1" />
         {/* Per-card range buttons */}

src/client/utils/exportPng.ts

@@ -0,0 +1,165 @@
+import { toPng } from "html-to-image";
+
+const PIXEL_RATIO = 3;
+const BACKGROUND = "#0f172a"; // slate-900 (matches dashboard)
+const DOT_COLOR = "rgba(55, 65, 81, 0.7)"; // slate-700 at 70% — matches the perceptual softness of the SVG pattern
+const DOT_GAP = 30;
+const DOT_SIZE = 2;
+// Hard cap to avoid browser canvas memory issues. 100M pixels ≈ 800 MB RAM.
+const MAX_PIXELS = 100_000_000;
+
+export interface ExportPngOptions {
+  pixelRatio?: number;
+  backgroundColor?: string;
+}
+
+export interface ExportPngResult {
+  dataUrl: string;
+  width: number;
+  height: number;
+}
+
+/**
+ * Captures the dashboard canvas (React Flow area) as a PNG data URL.
+ *
+ * The React Flow `<Background>` component renders dots as an SVG `<pattern>`,
+ * which html-to-image does not rasterize reliably across browsers. To get a
+ * deterministic output we:
+ *   1. Capture the React Flow area with transparent background (nodes/edges
+ *      only) and skip the buggy SVG pattern via `filter`.
+ *   2. Paint our own background + dot grid onto a canvas at the correct
+ *      pixel ratio.
+ *   3. Draw the captured layer on top.
+ *
+ * Overlay UI (Controls, MiniMap, EdgeLegend, anything with `data-no-export`)
+ * is excluded so the export is just the graph itself.
+ */
+export async function exportGraphAsPng(opts: ExportPngOptions = {}): Promise<ExportPngResult> {
+  const pixelRatio = opts.pixelRatio ?? PIXEL_RATIO;
+  const backgroundColor = opts.backgroundColor ?? BACKGROUND;
+
+  const target = document.querySelector(".react-flow") as HTMLElement | null;
+  if (!target) {
+    throw new Error("CANVAS_NOT_FOUND");
+  }
+
+  const rect = target.getBoundingClientRect();
+  const width = Math.ceil(rect.width);
+  const height = Math.ceil(rect.height);
+
+  if (width === 0 || height === 0) {
+    throw new Error("EMPTY_GRAPH");
+  }
+  if (width * height * pixelRatio * pixelRatio > MAX_PIXELS) {
+    throw new Error("GRAPH_TOO_LARGE");
+  }
+
+  // 1. Temporarily disable CSS effects that don't translate well to a
+  // rasterized PNG: Tailwind's `ring-*` (box-shadow halo around rounded
+  // corners shows as harsh edges without backdrop-blur underneath) and
+  // `backdrop-filter` (browsers don't capture it at all). Restored in
+  // the `finally` block.
+  const tempStyle = document.createElement("style");
+  tempStyle.dataset.exportPngOverride = "true";
+  tempStyle.textContent = `
+    /* Only target service (container) nodes — group headers stay transparent
+       so the group's outline / border remains visible at the top. */
+    .react-flow__node:not(.react-flow__node-group) > * {
+      --tw-ring-shadow: 0 0 #0000 !important;
+      backdrop-filter: none !important;
+      /* Solid dark fill so the dot grid doesn't bleed through node bodies.
+         State is still indicated by the border colors and the inner state dot. */
+      background-color: rgb(15 23 42 / 0.85) !important;
+    }
+  `;
+  document.head.appendChild(tempStyle);
+
+  let nodesDataUrl: string;
+  try {
+    // 2. Capture nodes/edges with transparent background.
+    nodesDataUrl = await toPng(target, {
+      width,
+      height,
+      pixelRatio,
+      backgroundColor: undefined,
+      filter: (node) => {
+        // node is typed as HTMLElement but at runtime can be any Element (incl. SVG).
+        // We rely on Element-level APIs which exist on both HTML and SVG.
+        const el = node as Element;
+        const cl = el.classList;
+        if (!cl) return true;
+        // Custom: anything explicitly marked
+        if ((node as HTMLElement).dataset?.noExport === "true") return false;
+        // React Flow overlays
+        if (cl.contains("react-flow__controls")) return false;
+        if (cl.contains("react-flow__minimap")) return false;
+        if (cl.contains("react-flow__attribution")) return false;
+        if (cl.contains("react-flow__panel")) return false;
+        // We re-render the dots manually below, skip React Flow's SVG pattern.
+        if (cl.contains("react-flow__background")) return false;
+        return true;
+      },
+    });
+  } finally {
+    document.head.removeChild(tempStyle);
+  }
+
+  // 2. Load the captured image so we can composite it onto a canvas.
+  const layer = await loadImage(nodesDataUrl);
+
+  // 3. Composite: solid bg + dot grid + captured layer.
+  const canvas = document.createElement("canvas");
+  canvas.width = width * pixelRatio;
+  canvas.height = height * pixelRatio;
+  const ctx = canvas.getContext("2d");
+  if (!ctx) {
+    throw new Error("CANVAS_CONTEXT_FAILED");
+  }
+
+  // Solid base
+  ctx.fillStyle = backgroundColor;
+  ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+  // Dot grid (matches the React Flow <Background> config: gap 30, size 2)
+  ctx.fillStyle = DOT_COLOR;
+  const gap = DOT_GAP * pixelRatio;
+  const radius = (DOT_SIZE * pixelRatio) / 2;
+  for (let x = gap; x < canvas.width; x += gap) {
+    for (let y = gap; y < canvas.height; y += gap) {
+      ctx.beginPath();
+      ctx.arc(x, y, radius, 0, Math.PI * 2);
+      ctx.fill();
+    }
+  }
+
+  // Captured nodes/edges on top
+  ctx.drawImage(layer, 0, 0, canvas.width, canvas.height);
+
+  return { dataUrl: canvas.toDataURL("image/png"), width, height };
+}
+
+function loadImage(src: string): Promise<HTMLImageElement> {
+  return new Promise((resolve, reject) => {
+    const img = new Image();
+    img.onload = () => resolve(img);
+    img.onerror = (e) => reject(new Error(`Image load failed: ${e}`));
+    img.src = src;
+  });
+}
+
+/**
+ * Triggers a browser download of a data URL with a filename of the form
+ * `containerflow-<hostname>-<timestamp>.png`.
+ */
+export function downloadPng(dataUrl: string, hostname?: string): void {
+  const ts = new Date().toISOString().replace(/[:.]/g, "-").slice(0, 19);
+  const host = hostname?.replace(/[^a-z0-9-]/gi, "").toLowerCase() || "graph";
+  const filename = `containerflow-${host}-${ts}.png`;
+
+  const link = document.createElement("a");
+  link.href = dataUrl;
+  link.download = filename;
+  document.body.appendChild(link);
+  link.click();
+  document.body.removeChild(link);
+}

src/server/index.ts

@@ -8,6 +8,7 @@ import { docker, discoverServices, discoverConnections, getContainerLogs, stream
 import { pollStats, watchDockerEvents } from "./watcher";
 import { loadDiscordConfig, saveDiscordConfig, notifyStateChange, notifyResourceAlert, notifyUIAction, notifyActionError, testWebhook, checkDownServices, setNotificationListener } from "./discord";
 import { loadContainerSettings, saveContainerSettings } from "./container-settings";
+import { loadProjectAliases, saveProjectAliases, sanitizeAlias } from "./project-aliases";
 import { initStatsDB, insertStats, getStatsHistory, getAllServicesStatsHistory } from "./stats-db";
 import { initEventsDB, insertEvent, insertNotification, getEvents, getNotifications, type EventLogEntry, type NotificationLogEntry } from "./events-db";
 import type { Service, Stats, WSMessage, DiscordConfig, ContainerSettings, StatsRange } from "../shared/types";
@@ -202,7 +203,8 @@ app.get("/api/init", async (c) => {
   // We deliberately do NOT trigger a fresh pollStats here — on cold start
   // with many containers it can exceed Bun's 10s request timeout and hang
   // the dashboard. The first regular poll (within ~3s) populates via WS.
-  return c.json({ services, connections, positions, stats: lastStats });
+  const projectAliases = loadProjectAliases();
+  return c.json({ services, connections, positions, stats: lastStats, projectAliases });
 });
 
 // ── Server config (read by frontend to disable buttons for non-allowed paths) ──
@@ -615,6 +617,43 @@ app.put("/api/container-settings", async (c) => {
   }
 });
 
+// ── Project aliases ──
+app.get("/api/project-aliases", (c) => {
+  return c.json(loadProjectAliases());
+});
+
+app.put("/api/project-aliases", async (c) => {
+  try {
+    const body = await c.req.json() as { project: string; alias: string };
+    if (!body.project) {
+      return c.json({ error: "Missing project" }, 400);
+    }
+    const aliases = loadProjectAliases();
+    const clean = sanitizeAlias(body.alias || "");
+    if (clean) {
+      aliases[body.project] = clean;
+    } else {
+      // Empty alias = reset to original (remove the entry)
+      delete aliases[body.project];
+    }
+    saveProjectAliases(aliases);
+    return c.json({ ok: true, alias: clean || null });
+  } catch {
+    return c.json({ error: "Failed to save" }, 500);
+  }
+});
+
+app.delete("/api/project-aliases/:project", (c) => {
+  const project = c.req.param("project");
+  if (!project) {
+    return c.json({ error: "Missing project" }, 400);
+  }
+  const aliases = loadProjectAliases();
+  delete aliases[project];
+  saveProjectAliases(aliases);
+  return c.json({ ok: true });
+});
+
 // ── Stats history ──
 const VALID_RANGES = new Set(["1h", "6h", "24h", "7d"]);
 

src/server/project-aliases.ts

@@ -0,0 +1,29 @@
+import fs from "fs";
+import path from "path";
+
+const DATA_DIR = process.env.DATA_DIR || path.join(process.cwd(), "data");
+const ALIASES_FILE = path.join(DATA_DIR, ".dockerflow-project-aliases.json");
+
+const MAX_ALIAS_LENGTH = 64;
+
+export type ProjectAliases = Record<string, string>;
+
+export function loadProjectAliases(): ProjectAliases {
+  try {
+    if (fs.existsSync(ALIASES_FILE)) {
+      return JSON.parse(fs.readFileSync(ALIASES_FILE, "utf-8"));
+    }
+  } catch {}
+  return {};
+}
+
+export function saveProjectAliases(aliases: ProjectAliases): void {
+  fs.writeFileSync(ALIASES_FILE, JSON.stringify(aliases, null, 2));
+}
+
+export function sanitizeAlias(raw: string): string {
+  return raw
+    .replace(/[\x00-\x1f\x7f]/g, "") // strip control chars
+    .trim()
+    .slice(0, MAX_ALIAS_LENGTH);
+}