1.0.32

src/lib/data/changelog.json

@@ -1,4 +1,22 @@
 [
+  {
+    "version": "1.0.32",
+    "date": "2026-06-06",
+    "changes": [
+      { "type": "feature", "text": "container details tweaks: process count, label filter, copy all labels (#812)" },
+      { "type": "feature", "text": "log improvements (#1130)" },
+      { "type": "fix", "text": "cleared Resources fields not persisted on container edit (#1119)" },
+      { "type": "fix", "text": "long container names overflowed in activity event details dialog (#1129)" },
+      { "type": "fix", "text": "git stack recreate and start operations ignored Dockhand-stored env vars (#1132)" },
+      { "type": "fix", "text": "dashboard stopped count reset to 0 after refresh for gracefully stopped containers (#1133)" },
+      { "type": "fix", "text": "auto-update preserves runtime `-e` env and `-l` label overrides (#1135)" },
+      { "type": "fix", "text": "git stack volume binds resolved to wrong host path when compose was in a subdirectory (#1139)" },
+      { "type": "fix", "text": "git stacks: subdir compose files now find their adjacent env files (#1136)" },
+      { "type": "feature", "text": "env editor doesn't flag Docker/Compose built-in variables as unused (#141)" },
+      { "type": "feature", "text": "container network mode: share another container's network namespace (#161)" }
+    ],
+    "imageTag": "fnsys/dockhand:v1.0.32"
+  },
   {
     "version": "1.0.31",
     "date": "2026-05-30",

src/lib/server/container-env-merge.ts

@@ -1,34 +0,0 @@
-/**
- * Merge container env vars with new image env vars during auto-update.
- * Image-baked vars get updated to the new image's values.
- * User-set vars (not present in old image) are preserved.
- * Env vars removed from the new image are dropped.
- */
-export function mergeImageEnvVars(
-	containerEnv: string[],
-	oldImageEnv: string[],
-	newImageEnv: string[]
-): string[] {
-	const getKey = (entry: string) => entry.split('=')[0];
-	const oldImageKeys = new Set(oldImageEnv.map(getKey));
-
-	const merged: string[] = [];
-
-	// Keep user-set env vars (key not present in old image)
-	for (const entry of containerEnv) {
-		if (!oldImageKeys.has(getKey(entry))) {
-			merged.push(entry);
-		}
-	}
-
-	// Add all new image env vars (updates changed values, adds new ones)
-	for (const entry of newImageEnv) {
-		const key = getKey(entry);
-		// Skip if user already set this key (user wins)
-		if (!merged.some(e => getKey(e) === key)) {
-			merged.push(entry);
-		}
-	}
-
-	return merged;
-}

src/lib/server/container-image-divergence.ts

@@ -0,0 +1,72 @@
+/**
+ * Helpers for surfacing env/label divergence between a running
+ * container and its image. Pure read-only — never used to mutate
+ * the container; used only to power UI hints.
+ *
+ * Background: as of #1135 / commit 0f989bd7 revert, Dockhand no
+ * longer "merges" image-baked env or labels into a container during
+ * auto-update. The container's Config.Env and Config.Labels are
+ * preserved verbatim (so a user's runtime `-e` / `-l` override is
+ * never silently wiped). The trade-off, originally raised by #1061,
+ * is that an image's updated default env/label values do not
+ * automatically propagate to running containers.
+ *
+ * These helpers let the UI surface "this container's value differs
+ * from the image's current value" so users can decide whether to
+ * Remove & Deploy. We do NOT try to classify "user-set vs
+ * image-baked" — that information isn't recoverable from Docker.
+ */
+
+/** Parse a Docker env list (`KEY=value` strings) into a Map. */
+function parseEnv(entries: string[]): Map<string, string> {
+	const m = new Map<string, string>();
+	for (const e of entries) {
+		const i = e.indexOf('=');
+		if (i === -1) {
+			m.set(e, '');
+		} else {
+			m.set(e.slice(0, i), e.slice(i + 1));
+		}
+	}
+	return m;
+}
+
+/**
+ * Keys where the container's env value differs from the image's
+ * CURRENT env value. Keys present in only one side are excluded —
+ * they're either user-only or image-only, neither of which is
+ * "divergence" we can usefully act on.
+ */
+export function detectImageEnvDivergence(
+	containerEnv: string[],
+	imageEnv: string[]
+): string[] {
+	const cont = parseEnv(containerEnv);
+	const img = parseEnv(imageEnv);
+	const diff: string[] = [];
+	for (const [k, v] of cont) {
+		if (img.has(k) && img.get(k) !== v) {
+			diff.push(k);
+		}
+	}
+	return diff;
+}
+
+/**
+ * Keys where the container's label value differs from the image's
+ * CURRENT label value. Same semantics as detectImageEnvDivergence.
+ */
+export function detectImageLabelDivergence(
+	containerLabels: Record<string, string> | null | undefined,
+	imageLabels: Record<string, string> | null | undefined
+): string[] {
+	const cont = containerLabels || {};
+	const img = imageLabels || {};
+	const diff: string[] = [];
+	for (const [k, v] of Object.entries(cont)) {
+		if (k in img && img[k] !== v) {
+			diff.push(k);
+		}
+	}
+	return diff;
+}

src/lib/server/docker.ts

@@ -6,7 +6,6 @@
  */
 
 import { homedir } from 'node:os';
-import { mergeImageEnvVars } from './container-env-merge';
 import { existsSync, mkdirSync, rmSync, readdirSync } from 'node:fs';
 import { join, resolve } from 'node:path';
 import * as http from 'node:http';
@@ -1299,6 +1298,11 @@ export interface CreateContainerOptions {
 	restartPolicy?: string;
 	restartMaxRetries?: number;
 	networkMode?: string;
+	/** Additional networks attached after creation via POST /networks/<name>/connect.
+	 *  Must NOT include the primary (which lives in networkMode + EndpointsConfig). */
+	additionalNetworks?: string[];
+	/** @deprecated use networkMode + additionalNetworks. Kept only so old callers
+	 *  (auto-update inspect path) keep working — see backward-compat block below. */
 	networks?: string[];
 	/** Network aliases for the primary network */
 	networkAliases?: string[];
@@ -1454,92 +1458,67 @@ export async function createContainer(options: CreateContainerOptions, envId?: n
 		containerConfig.Volumes = options.volumes;
 	}
 
-	if (options.networkMode) {
-		containerConfig.HostConfig.NetworkMode = options.networkMode;
-
-		// Build endpoint config for primary network with aliases, static IP, and gateway priority
-		const hasNetworkConfig = options.networkAliases?.length || options.networkIpv4Address || options.networkIpv6Address || options.networkGwPriority !== undefined;
-		if (hasNetworkConfig) {
-			const endpointConfig: any = {};
-
-			if (options.networkAliases && options.networkAliases.length > 0) {
-				endpointConfig.Aliases = options.networkAliases;
-			}
-
-			if (options.networkIpv4Address || options.networkIpv6Address) {
-				endpointConfig.IPAMConfig = {};
-				if (options.networkIpv4Address) {
-					endpointConfig.IPAMConfig.IPv4Address = options.networkIpv4Address;
-				}
-				if (options.networkIpv6Address) {
-					endpointConfig.IPAMConfig.IPv6Address = options.networkIpv6Address;
-				}
-			}
-
-			// Gateway priority (Docker Engine 28+)
-			if (options.networkGwPriority !== undefined) {
-				endpointConfig.GwPriority = options.networkGwPriority;
-			}
-
-			containerConfig.NetworkingConfig = {
-				EndpointsConfig: {
-					[options.networkMode]: endpointConfig
-				}
-			};
-		}
+	// Backward-compat: callers (and the auto-update inspect path) may still pass
+	// the legacy "networks" array which conflated primary + extras. Normalize to
+	// the new model: anything that isn't the primary becomes an additional network.
+	if (options.networks && !options.additionalNetworks) {
+		const primary = options.networkMode || '';
+		options.additionalNetworks = options.networks.filter(n => n !== primary);
 	}
 
-	if (options.networks && options.networks.length > 0) {
-		containerConfig.HostConfig.NetworkMode = options.networks[0];
+	// Networking model:
+	//   - networkMode is the SINGLE source of truth for the primary network
+	//   - EndpointsConfig has exactly ONE entry, keyed by networkMode, carrying
+	//     the form's IPv4/IPv6/aliases/gwPriority
+	//   - additionalNetworks (extras only — NEVER includes the primary) are
+	//     attached after container creation via POST /networks/{name}/connect
+	//   - Shared modes (host / none / container:X / service:X) skip both
+	//     EndpointsConfig and additionalNetworks: Docker rejects them.
+	const primaryMode = options.networkMode || '';
+	const isSharedMode = primaryMode === 'host' || primaryMode === 'none' || primaryMode.startsWith('container:') || primaryMode.startsWith('service:');
 
-		// Build endpoint configs for all networks
-		const endpointsConfig: Record<string, any> = {};
+	if (primaryMode) {
+		containerConfig.HostConfig.NetworkMode = primaryMode;
+	}
 
-		for (const network of options.networks) {
-			const isFirstNetwork = network === options.networks[0];
-			const netCfg = options.networkConfigs?.[network];
+	// Build the single EndpointsConfig entry for the primary (only for non-shared modes).
+	if (primaryMode && !isSharedMode) {
+		const endpointConfig: any = {};
+		if (options.networkAliases?.length) {
+			endpointConfig.Aliases = options.networkAliases;
+		}
+		if (options.networkIpv4Address || options.networkIpv6Address) {
+			endpointConfig.IPAMConfig = {};
+			if (options.networkIpv4Address) endpointConfig.IPAMConfig.IPv4Address = options.networkIpv4Address;
+			if (options.networkIpv6Address) endpointConfig.IPAMConfig.IPv6Address = options.networkIpv6Address;
+		}
+		if (options.networkGwPriority !== undefined) {
+			endpointConfig.GwPriority = options.networkGwPriority;
+		}
+		containerConfig.NetworkingConfig = {
+			EndpointsConfig: {
+				[primaryMode]: endpointConfig
+			}
+		};
+	}
+
+	// Extras attached after creation. Empty array for shared modes.
+	const extraNetworks: { name: string; config: any }[] = [];
+	if (!isSharedMode && options.additionalNetworks?.length) {
+		for (const netName of options.additionalNetworks) {
+			if (netName === primaryMode) continue;  // primary lives in EndpointsConfig, not here
+			const netCfg = options.networkConfigs?.[netName];
 			const endpointConfig: any = {};
-
-			// Per-network config from networkConfigs (takes precedence)
 			if (netCfg) {
-				if (netCfg.aliases && netCfg.aliases.length > 0) {
-					endpointConfig.Aliases = netCfg.aliases;
-				}
+				if (netCfg.aliases?.length) endpointConfig.Aliases = netCfg.aliases;
 				if (netCfg.ipv4Address || netCfg.ipv6Address) {
 					endpointConfig.IPAMConfig = {};
-					if (netCfg.ipv4Address) {
-						endpointConfig.IPAMConfig.IPv4Address = netCfg.ipv4Address;
-					}
-					if (netCfg.ipv6Address) {
-						endpointConfig.IPAMConfig.IPv6Address = netCfg.ipv6Address;
-					}
-				}
-			} else if (isFirstNetwork) {
-				// Backward compat: apply flat fields to first network if no networkConfigs
-				if (options.networkAliases && options.networkAliases.length > 0) {
-					endpointConfig.Aliases = options.networkAliases;
-				}
-				if (options.networkIpv4Address || options.networkIpv6Address) {
-					endpointConfig.IPAMConfig = {};
-					if (options.networkIpv4Address) {
-						endpointConfig.IPAMConfig.IPv4Address = options.networkIpv4Address;
-					}
-					if (options.networkIpv6Address) {
-						endpointConfig.IPAMConfig.IPv6Address = options.networkIpv6Address;
-					}
-				}
-				// Gateway priority (Docker Engine 28+)
-				if (options.networkGwPriority !== undefined) {
-					endpointConfig.GwPriority = options.networkGwPriority;
+					if (netCfg.ipv4Address) endpointConfig.IPAMConfig.IPv4Address = netCfg.ipv4Address;
+					if (netCfg.ipv6Address) endpointConfig.IPAMConfig.IPv6Address = netCfg.ipv6Address;
 				}
 			}
-
-			endpointsConfig[network] = endpointConfig;
+			extraNetworks.push({ name: netName, config: endpointConfig });
 		}
-
-		containerConfig.NetworkingConfig = {
-			EndpointsConfig: endpointsConfig
-		};
 	}
 
 	if (options.privileged !== undefined) {
@@ -1772,6 +1751,39 @@ export async function createContainer(options: CreateContainerOptions, envId?: n
 		containerConfig.Domainname = options.domainname;
 	}
 
+	// Shared network modes (host / container:X / service:X) inherit the
+	// namespace's networking, so Docker rejects any field that would override it.
+	// Strip them defensively — the merge in updateContainer carries values from
+	// the old config that may not be valid for the new mode (e.g. switching from
+	// bridge → container:foo with a leftover Hostname).
+	// Mirrors the same logic in recreateContainerFromInspect.
+	{
+		const primary = containerConfig.HostConfig?.NetworkMode || '';
+		const isHost = primary === 'host';
+		const isContainer = primary.startsWith('container:');
+		const isService = primary.startsWith('service:');
+		if (isHost || isContainer || isService) {
+			delete containerConfig.Hostname;
+			delete containerConfig.Domainname;
+			delete containerConfig.MacAddress;
+		}
+		if (isContainer || isService) {
+			// container:X also shares ports / DNS / hosts with the target
+			delete containerConfig.ExposedPorts;
+			if (containerConfig.HostConfig) {
+				delete containerConfig.HostConfig.PortBindings;
+				delete containerConfig.HostConfig.PublishAllPorts;
+				delete containerConfig.HostConfig.Dns;
+				delete containerConfig.HostConfig.DnsOptions;
+				delete containerConfig.HostConfig.DnsSearch;
+				delete containerConfig.HostConfig.ExtraHosts;
+				delete containerConfig.HostConfig.Links;
+			}
+			// NetworkingConfig is meaningless when sharing a namespace
+			delete containerConfig.NetworkingConfig;
+		}
+	}
+
 	const result = await dockerJsonRequest<{ Id: string }>(
 		`/containers/create?name=${encodeURIComponent(options.name)}`,
 		{
@@ -1781,6 +1793,18 @@ export async function createContainer(options: CreateContainerOptions, envId?: n
 		envId
 	);
 
+	// Attach additional networks now that the container exists. Docker only allows
+	// a single network at create time, so anything beyond the primary is connected here.
+	for (const extra of extraNetworks) {
+		try {
+			await connectContainerToNetworkRaw(extra.name, result.Id, extra.config, envId);
+		} catch (err: any) {
+			console.error(`Failed to attach additional network "${extra.name}":`, err?.message || err);
+			// Don't fail the whole create — primary network is already connected.
+			// Caller (updateContainer rollback path) will surface this if needed.
+		}
+	}
+
 	return { id: result.Id, start: () => startContainer(result.Id, envId) };
 }
 
@@ -1901,50 +1925,6 @@ export async function recreateContainerFromInspect(
 		HostConfig: hostConfig
 	};
 
-	// 4a. Update image-embedded labels and env vars to match the new image.
-	// Docker's create API uses exactly the labels/env you pass, ignoring the new image's
-	// embedded values. We inspect both old and new images to distinguish image-origin
-	// values from user-set values, then merge accordingly.
-	try {
-		const [oldImageInspect, newImageInspect] = await Promise.all([
-			inspectImage(config.Image, envId),
-			inspectImage(newImage, envId)
-		]);
-
-		// Merge labels
-		const oldImageLabels: Record<string, string> = (oldImageInspect as any)?.Config?.Labels || {};
-		const newImageLabels: Record<string, string> = (newImageInspect as any)?.Config?.Labels || {};
-		const containerLabels: Record<string, string> = createConfig.Labels || {};
-
-		const mergedLabels: Record<string, string> = {};
-
-		// Keep user-set labels (not present in old image)
-		for (const [k, v] of Object.entries(containerLabels)) {
-			if (!(k in oldImageLabels)) {
-				mergedLabels[k] = v;
-			}
-		}
-
-		// Add all new image labels (overrides old image labels)
-		for (const [k, v] of Object.entries(newImageLabels)) {
-			mergedLabels[k] = v;
-		}
-
-		createConfig.Labels = mergedLabels;
-		log?.(`Updated image labels: ${Object.keys(newImageLabels).length} from new image, ${Object.keys(mergedLabels).length} total`);
-
-		// Merge env vars (same logic: image-baked vars get updated, user-set vars preserved)
-		const oldImageEnv: string[] = (oldImageInspect as any)?.Config?.Env || [];
-		const newImageEnv: string[] = (newImageInspect as any)?.Config?.Env || [];
-		const containerEnv: string[] = createConfig.Env || [];
-
-		createConfig.Env = mergeImageEnvVars(containerEnv, oldImageEnv, newImageEnv);
-		log?.(`Updated image env vars: ${newImageEnv.length} from new image, ${createConfig.Env.length} total`);
-	} catch (e) {
-		log?.(`Warning: could not update image labels/env: ${e}`);
-		// Fall through with old values — non-fatal
-	}
-
 	// Strip default MemorySwappiness — Podman + cgroupv2 rejects it.
 	// Docker returns -1, Podman returns 0 when unset.
 	const swappiness = createConfig.HostConfig?.MemorySwappiness;
@@ -2424,20 +2404,44 @@ export async function updateContainer(id: string, options: Partial<CreateContain
 	// Extract ALL existing container options
 	const existingOptions = extractContainerOptions(oldContainerInfo);
 
-	// Merge user-provided options on top of existing options
-	// User options take precedence, but we preserve everything not explicitly provided
+	// Per-network fields (aliases, static IPs, MAC, gateway priority) are scoped to
+	// a single network. When the user switches the primary network, the values
+	// extracted from the old network must NOT follow the container — e.g. compose
+	// service aliases from "anton" applied to the default bridge fail with
+	// "invalid endpoint settings" because the default bridge doesn't accept aliases.
+	if (options.networkMode && options.networkMode !== networkMode) {
+		existingOptions.networkAliases = undefined;
+		existingOptions.networkIpv4Address = undefined;
+		existingOptions.networkIpv6Address = undefined;
+		existingOptions.networkGwPriority = undefined;
+		existingOptions.macAddress = undefined;
+	}
+
+	// Merge user-provided options on top of existing options.
+	// Semantics (#1119):
+	//   - key absent from `options`          → preserve existingOptions[key]
+	//   - key present with explicit `null`   → CLEAR the field (treat as undefined)
+	//   - key present with any other value   → use the user's value
+	//
+	// Without the null-as-clear handling, clearing a Resources field in the UI
+	// (which sends null) would merge over the existing value identically to a
+	// preserved field — Memory limit, etc. would silently stick around.
+	const userOptions: Record<string, unknown> = {};
+	for (const [k, v] of Object.entries(options)) {
+		userOptions[k] = v === null ? undefined : v;
+	}
 	const mergedOptions: CreateContainerOptions = {
 		...existingOptions,
-		...options,
+		...userOptions,
 		// Replace labels, but preserve Docker internal labels (com.docker.*)
-		labels: options.labels !== undefined
+		labels: options.labels !== undefined && options.labels !== null
 			? {
 					...Object.fromEntries(
 						Object.entries(existingOptions.labels || {}).filter(([k]) => k.startsWith('com.docker.'))
 					),
 					...options.labels
 				}
-			: existingOptions.labels
+			: options.labels === null ? {} : existingOptions.labels
 	};
 
 	// 1. Stop old container

src/lib/server/host-path.ts

@@ -385,36 +385,39 @@ export function extractUidFromSocketPath(socketPath: string): string | null {
 export function rewriteComposeVolumePaths(composeContent: string, workingDir: string): { content: string; modified: boolean; changes: string[] } {
 	const changes: string[] = [];
 
-	// Try to translate workingDir to host path using ANY cached mount
-	// This handles both DATA_DIR mounts and external mounts (e.g., /external-stacks)
-	const hostWorkingDir = translateContainerPathViaMount(workingDir);
-
-	if (!hostWorkingDir) {
-		// Can't translate - workingDir is not under any known mount
-		return { content: composeContent, modified: false, changes };
-	}
-
-	// Parse compose content line by line to find and rewrite volume mounts
+	// Parse compose content line by line to find and rewrite volume mounts.
 	// We look for patterns like:
 	//   - ./something:/container/path
+	//   - ../something:/container/path
 	//   - "./something:/container/path"
-	//   - './something:/container/path'
+	//   - '../something:/container/path'
 	const lines = composeContent.split('\n');
 	const modifiedLines: string[] = [];
 
 	for (const line of lines) {
-		// Match volume mount patterns with relative paths
-		// Handles: - ./path:/dest, - "./path:/dest", - './path:/dest'
-		const volumeMatch = line.match(/^(\s*-\s*)(['"]?)(\.\/[^'":\s]+)(\2)(:.+)$/);
+		// Match volume mount patterns with relative paths.
+		// Handles ./path and ../path, optionally quoted with single or double quotes.
+		const volumeMatch = line.match(/^(\s*-\s*)(['"]?)(\.\.?\/[^'":\s]+)(\2)(:.+)$/);
 
 		if (volumeMatch) {
 			const [, prefix, quote, relativeSrc, , destPart] = volumeMatch;
-			// Convert relative path to absolute host path
-			const absoluteHostPath = hostWorkingDir + '/' + relativeSrc.substring(2); // Remove ./
+			// Resolve to an absolute container path, then translate to a host
+			// path via any known mount. Each line is translated independently so
+			// `../foo` can escape workingDir into a sibling that may map to a
+			// different mount than workingDir itself.
+			const absoluteContainerPath = resolve(workingDir, relativeSrc);
+			const absoluteHostPath = translateContainerPathViaMount(absoluteContainerPath);
 
-			const newLine = `${prefix}${absoluteHostPath}${destPart}`;
-			modifiedLines.push(newLine);
-			changes.push(`  ${relativeSrc} -> ${absoluteHostPath}`);
+			if (absoluteHostPath) {
+				const newLine = `${prefix}${absoluteHostPath}${destPart}`;
+				modifiedLines.push(newLine);
+				changes.push(`  ${relativeSrc} -> ${absoluteHostPath}`);
+			} else {
+				// Can't translate — leave line unchanged. Compose will resolve
+				// it relative to its cwd; if that's wrong the deploy fails
+				// loudly, which is better than producing a misleading host path.
+				modifiedLines.push(line);
+			}
 		} else {
 			modifiedLines.push(line);
 		}

src/lib/server/stacks.ts

@@ -855,6 +855,16 @@ function findComposeOverrideFile(stackDir: string, composeFileName: string): str
 /**
  * Execute a docker compose command locally via child_process.spawn.
  *
+ * Heads up on paths: `stackDir` is the cpSync target / fallback working
+ * directory, but it's not always where the compose file lives — git stacks
+ * with a contextDir can put the compose file in a subdirectory. Anything
+ * compose-adjacent (spawn cwd, .env discovery, compose.override.yaml
+ * lookup, .env.dockhand write, volume-path rewriter) anchors on
+ * `composeFileDir = dirname(composeFile)`. The two are equal for the
+ * common case and the change is transparent; only the subdir case is
+ * affected. If you add anything new that touches a compose-adjacent file,
+ * use `composeFileDir`, not `stackDir`.
+ *
  * @param tlsConfig - TLS configuration for remote Docker connections (certs written to temp files)
  * @param envVars - Non-secret environment variables (from .env file, passed for backward compat)
  * @param secretVars - Secret environment variables (injected via shell env, NEVER written to disk)
@@ -907,13 +917,22 @@ async function executeLocalCompose(
 		writeFileSync(composeFile, composeContent);
 	}
 
+	// Anchor for everything compose-adjacent: the directory the compose file
+	// itself lives in. Equal to stackDir for the common case (compose at
+	// stack root), but different when a git stack puts the compose file in
+	// a subdirectory of the context dir. Bugs #1136 and #1139 both stemmed
+	// from anchoring on stackDir instead of this.
+	const composeFileDir = dirname(composeFile);
+
 	// Rewrite relative volume paths for host path translation (in memory only, not saved to disk)
 	// This is needed when Dockhand runs inside Docker - the Docker daemon on the host
 	// can't see container paths like /app/data/..., so we translate them to host paths
 	// Only do this for local Docker (no dockerHost) - for remote Docker the paths wouldn't make sense
+	// Resolve relative paths against the COMPOSE FILE'S directory, not stackDir, so
+	// subdir compose files with ./ and ../ binds resolve correctly (#1139).
 	let finalComposeContent = composeContent;
 	if (!dockerHost && getHostDataDir()) {
-		const rewriteResult = rewriteComposeVolumePaths(composeContent, stackDir);
+		const rewriteResult = rewriteComposeVolumePaths(composeContent, composeFileDir);
 		if (rewriteResult.modified) {
 			finalComposeContent = rewriteResult.content;
 			console.log(`${logPrefix} [HostPath] Translating relative volume paths for Docker host:`);
@@ -951,9 +970,25 @@ async function executeLocalCompose(
 	}
 
 	// Check if .env file exists on disk (for legacy support decision)
-	const defaultEnvPath = join(stackDir, '.env');
+	const defaultEnvPath = join(composeFileDir, '.env');
 	const hasEnvFile = existsSync(defaultEnvPath) || (customEnvPath && existsSync(customEnvPath));
 
+	// One-line audit of all path notions used below. Next time something is
+	// off (compose can't find a file, volume bind points at the wrong
+	// place, env vars don't reach the container), grep for "[PathAudit]"
+	// in the log — the mismatch is usually obvious. The "subdir=yes" flag
+	// is the canary for the case where stackDir and composeFileDir diverge.
+	console.log(
+		`${logPrefix} [PathAudit] ` +
+		`stackDir=${stackDir} ` +
+		`composeFile=${composeFile} ` +
+		`composeFileDir=${composeFileDir} ` +
+		`subdir=${composeFileDir !== stackDir ? 'yes' : 'no'} ` +
+		`defaultEnvPath=${defaultEnvPath} (exists=${existsSync(defaultEnvPath)}) ` +
+		`customEnvPath=${customEnvPath ?? '(none)'}` +
+		(customEnvPath ? ` (exists=${existsSync(customEnvPath)})` : '')
+	);
+
 	// LEGACY SUPPORT: Only inject envVars via shell if NO .env file exists
 	// This is for stacks created with older Dockhand versions that stored env vars
 	// in DB but didn't write .env files to disk.
@@ -1015,14 +1050,14 @@ async function executeLocalCompose(
 		// Host path translation: must pipe modified content via stdin
 		args.push('-f', '-');
 		// Also include override file if it exists (needs path translation too)
-		const overrideFile = findComposeOverrideFile(stackDir, basename(composeFile));
+		const overrideFile = findComposeOverrideFile(composeFileDir, basename(composeFile));
 		if (overrideFile) {
 			let overrideContent = readFileSync(overrideFile, 'utf-8');
 			if (getHostDataDir()) {
-				const rewrite = rewriteComposeVolumePaths(overrideContent, stackDir);
+				const rewrite = rewriteComposeVolumePaths(overrideContent, composeFileDir);
 				if (rewrite.modified) overrideContent = rewrite.content;
 			}
-			tempOverridePath = join(stackDir, '.compose.override.translated.yaml');
+			tempOverridePath = join(composeFileDir, '.compose.override.translated.yaml');
 			writeFileSync(tempOverridePath, overrideContent);
 			args.push('-f', tempOverridePath);
 			console.log(`${logPrefix} Including override file (path-translated): ${basename(overrideFile)}`);
@@ -1030,7 +1065,7 @@ async function executeLocalCompose(
 	} else if (customComposePath) {
 		// Custom path (imported/adopted stacks): must use -f to point to non-standard location
 		args.push('-f', composeFile);
-		const overrideFile = findComposeOverrideFile(stackDir, basename(composeFile));
+		const overrideFile = findComposeOverrideFile(composeFileDir, basename(composeFile));
 		if (overrideFile) {
 			args.push('-f', overrideFile);
 			console.log(`${logPrefix} Including override file: ${basename(overrideFile)}`);
@@ -1056,7 +1091,7 @@ async function executeLocalCompose(
 	// Only written when useOverrideFile is true (git stacks). Internal/adopted stacks
 	// already have their non-secrets in the .env file written by the UI.
 	if (useOverrideFile && envVars && Object.keys(envVars).length > 0) {
-		const overrideEnvPath = join(stackDir, '.env.dockhand');
+		const overrideEnvPath = join(composeFileDir, '.env.dockhand');
 		const header = '# Auto-generated by Dockhand. Do not edit - changes will be overwritten on next deploy.\n';
 		const lines = Object.entries(envVars).map(([k, v]) => `${k}=${v}`);
 		writeFileSync(overrideEnvPath, header + lines.join('\n') + '\n');
@@ -1126,9 +1161,9 @@ async function executeLocalCompose(
 	}
 
 	try {
-		console.log(`${logPrefix} Spawning docker compose process...`);
+		console.log(`${logPrefix} Spawning docker compose process from ${composeFileDir}: ${args.join(' ')}`);
 		const proc = nodeSpawn(args[0], args.slice(1), {
-			cwd: stackDir,
+			cwd: composeFileDir,
 			env: spawnEnv,
 			stdio: [useStdin ? 'pipe' : 'inherit', 'pipe', 'pipe']
 		});
@@ -1906,7 +1941,11 @@ export async function startStack(
 		return withContainerFallback(stackName, envId, 'start');
 	}
 
-	const opts = { stackName, envId, workingDir: result.stackDir, composePath: result.composePath, envPath: result.envPath };
+	// Check if this is a git stack - git stacks need useOverrideFile to write .env.dockhand
+	const source = await getStackSource(stackName, envId);
+	const isGitStack = source?.sourceType === 'git';
+
+	const opts: ComposeCommandOptions = { stackName, envId, workingDir: result.stackDir, composePath: result.composePath, envPath: result.envPath, useOverrideFile: isGitStack };
 
 	// Check if containers exist for this stack. If they do, use 'start' to resume
 	// them (preserves container IDs, avoids Traefik race conditions from recreation).
@@ -1974,7 +2013,13 @@ export async function restartStack(
 		return withContainerFallback(stackName, envId, 'restart');
 	}
 
-	const opts: ComposeCommandOptions = { stackName, envId, workingDir: result.stackDir, composePath: result.composePath, envPath: result.envPath };
+	// Git stacks need useOverrideFile to write .env.dockhand with DB overrides.
+	// Non-git stacks still pass nonSecretVars for legacy support (stacks without
+	// .env files on disk get vars injected via shell env at executeLocalCompose).
+	const source = await getStackSource(stackName, envId);
+	const isGitStack = source?.sourceType === 'git';
+
+	const opts: ComposeCommandOptions = { stackName, envId, workingDir: result.stackDir, composePath: result.composePath, envPath: result.envPath, useOverrideFile: isGitStack };
 
 	let composeResult: StackOperationResult;
 

src/lib/stores/settings.ts

@@ -24,7 +24,8 @@ export interface AppSettings {
 	eventCleanupEnabled: boolean;
 	scannerCleanupCron: string;
 	scannerCleanupEnabled: boolean;
-	logBufferSizeKb: number;
+	logBufferSizeKb: number;  // legacy, retained for migration — UI uses logMaxLines
+	logMaxLines: number;       // line-count cap for the log buffer (replaces KB-based limit)
 	defaultTimezone: string;
 	eventCollectionMode: EventCollectionMode;
 	eventPollInterval: number;
@@ -58,6 +59,7 @@ const DEFAULT_SETTINGS: AppSettings = {
 	scannerCleanupCron: '0 3 * * 0',
 	scannerCleanupEnabled: true,
 	logBufferSizeKb: 500,
+	logMaxLines: 2000,
 	defaultTimezone: 'UTC',
 	eventCollectionMode: 'stream',
 	eventPollInterval: 60000,
@@ -90,6 +92,20 @@ services:
 `
 };
 
+// Derive logMaxLines from a settings payload — prefers the new field; if absent
+// (older DB), converts the legacy KB value at ~8 lines/KB (Docker log lines
+// average ~120 chars). Clamps to a sensible range.
+function deriveLogMaxLines(s: { logMaxLines?: number; logBufferSizeKb?: number }): number {
+	// Cap at 2000 — anything larger thrashes the browser when rendering with no
+	// virtualization. Old DBs may have absurd values from when the cap was 50K;
+	// snap them down here so users don't get a stuck page after upgrade.
+	if (typeof s.logMaxLines === 'number' && s.logMaxLines > 0) {
+		return Math.min(2000, Math.max(100, s.logMaxLines));
+	}
+	const kb = s.logBufferSizeKb ?? DEFAULT_SETTINGS.logBufferSizeKb;
+	return Math.min(2000, Math.max(100, Math.round(kb * 8)));
+}
+
 // Create a writable store for app settings
 function createSettingsStore() {
 	const { subscribe, set, update } = writable<AppSettings>(DEFAULT_SETTINGS);
@@ -122,6 +138,7 @@ function createSettingsStore() {
 					scannerCleanupCron: settings.scannerCleanupCron ?? DEFAULT_SETTINGS.scannerCleanupCron,
 					scannerCleanupEnabled: settings.scannerCleanupEnabled ?? DEFAULT_SETTINGS.scannerCleanupEnabled,
 					logBufferSizeKb: settings.logBufferSizeKb ?? DEFAULT_SETTINGS.logBufferSizeKb,
+					logMaxLines: deriveLogMaxLines(settings),
 					defaultTimezone: settings.defaultTimezone ?? DEFAULT_SETTINGS.defaultTimezone,
 					eventCollectionMode: settings.eventCollectionMode ?? DEFAULT_SETTINGS.eventCollectionMode,
 					eventPollInterval: settings.eventPollInterval ?? DEFAULT_SETTINGS.eventPollInterval,
@@ -172,6 +189,7 @@ function createSettingsStore() {
 					scannerCleanupCron: updatedSettings.scannerCleanupCron ?? DEFAULT_SETTINGS.scannerCleanupCron,
 					scannerCleanupEnabled: updatedSettings.scannerCleanupEnabled ?? DEFAULT_SETTINGS.scannerCleanupEnabled,
 					logBufferSizeKb: updatedSettings.logBufferSizeKb ?? DEFAULT_SETTINGS.logBufferSizeKb,
+					logMaxLines: deriveLogMaxLines(updatedSettings),
 					defaultTimezone: updatedSettings.defaultTimezone ?? DEFAULT_SETTINGS.defaultTimezone,
 					eventCollectionMode: updatedSettings.eventCollectionMode ?? DEFAULT_SETTINGS.eventCollectionMode,
 					eventPollInterval: updatedSettings.eventPollInterval ?? DEFAULT_SETTINGS.eventPollInterval,
@@ -330,6 +348,13 @@ function createSettingsStore() {
 				return newSettings;
 			});
 		},
+		setLogMaxLines: (value: number) => {
+			update((current) => {
+				const newSettings = { ...current, logMaxLines: value };
+				saveSettings({ logMaxLines: value });
+				return newSettings;
+			});
+		},
 		setDefaultTimezone: (value: string) => {
 			update((current) => {
 				const newSettings = { ...current, defaultTimezone: value };

src/lib/utils/log-entry.ts

@@ -0,0 +1,77 @@
+// Per-line log model shared by LogsPanel and the /logs page. The buffer is an
+// array of these — the toggle/search/filter UI is a pure derivation of the
+// array, no string concatenation. Avoids regex passes over the whole buffer
+// every render and lets Svelte's keyed {#each} diff append-only updates cheaply.
+
+import { AnsiUp } from 'ansi_up';
+
+export interface LogEntry {
+	id: number;
+	timestamp?: string;
+	text: string;
+	// Optional fields for grouped/multi-container views
+	containerId?: string;
+	containerName?: string;
+	color?: string;
+	stream?: string;
+}
+
+const ansiUp = new AnsiUp();
+ansiUp.use_classes = true;
+
+const TS_RE = /^(\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(?:\.\d+)?Z)\s/;
+
+export function parseDockerLine(raw: string): { timestamp?: string; text: string } {
+	const m = raw.match(TS_RE);
+	if (m) return { timestamp: m[1], text: raw.slice(m[0].length) };
+	return { text: raw };
+}
+
+let nextId = 0;
+export function nextLogId(): number {
+	return nextId++;
+}
+
+// Split a chunk of raw log text into LogEntry items. The last item may be
+// partial (no trailing newline), so it's returned as carryover for the next
+// chunk to prepend.
+export function parseLines(
+	raw: string,
+	carryover: string,
+	extra: Partial<LogEntry> = {}
+): { entries: LogEntry[]; carryover: string } {
+	const combined = carryover + raw;
+	const lines = combined.split('\n');
+	const tail = lines.pop() ?? '';
+	const entries: LogEntry[] = [];
+	for (const line of lines) {
+		if (line === '') continue;
+		const { timestamp, text } = parseDockerLine(line);
+		entries.push({ id: nextId++, timestamp, text, ...extra });
+	}
+	return { entries, carryover: tail };
+}
+
+// Per-entry ANSI HTML cache. WeakMap so entries evicted by buffer compaction
+// can be GC'd along with their cached HTML.
+const ansiCache = new WeakMap<LogEntry, string>();
+export function entryHtml(e: LogEntry): string {
+	const cached = ansiCache.get(e);
+	if (cached !== undefined) return cached;
+	const html = ansiUp.ansi_to_html(e.text);
+	ansiCache.set(e, html);
+	return html;
+}
+
+// Render the ANSI HTML for an entry and splice <mark> spans for a search match.
+// Splits by HTML tags so substitution doesn't run inside attribute values.
+export function renderLineHtml(e: LogEntry, query: string): string {
+	const ansi = entryHtml(e);
+	if (!query) return ansi;
+	const escapedForRegex = query.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+	const regex = new RegExp(`(${escapedForRegex})`, 'gi');
+	const parts = ansi.split(/(<[^>]*>)/);
+	return parts
+		.map(part => (part.startsWith('<') ? part : part.replace(regex, '<mark class="search-match">$1</mark>')))
+		.join('');
+}