CFG_NETWORK_MTU=1500 was baked blindly into the rootless daemon uplink
(DOCKERD_ROOTLESS_ROOTLESSKIT_MTU) and every app's container network. On links
whose real path MTU is below 1500 (Qubes/NAT/VPN with PMTU discovery blocked),
image manifests + tiny images pull fine but large image LAYERS stall and reset
mid-blob with "httpReadSeeker: ... EOF" — apps silently fail to install. Probed
here: path MTU ~1328, Docker at 1500 → black hole.
- New scripts/network/network_mtu.sh: networkDetectMtu (don't-fragment ICMP
ladder → largest standard MTU that gets through, 1500 when ICMP gives no
signal) + networkEffectiveMtu (CFG_NETWORK_MTU: a number is verbatim, "auto"
probes once and caches $docker_dir/.network_mtu) + networkRedetectMtu.
- CFG_NETWORK_MTU default 1500 -> auto. Rootless setup now writes the resolved
MTU into the override (and re-detects per install); the per-app NETWORK_MTU_TAG
uses the resolved value too. Explicit numbers still win.
Verified on this box: auto -> 1300; alpine (multi-MB) + the full ~100MB navidrome
image now pull to completion where they previously EOF'd. Applied live (override
1300, config=auto, cache=1300, rootless docker restarted).
Signed-off-by: librelad <librelad@digitalangels.vip>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The Features section was a grab-bag of ~27 toggles, most of which are
either category-specific (firewall, SSL, Docker network, SSH hardening)
or install-time choices that brick the box if flipped on a live
install (the WebUI / config / CLI / Docker requirements). One page
made auditing easier but flattened the risk hierarchy.
Reorganised so each toggle lives where it conceptually belongs, and
the dangerous install-time set is double-gated:
network_docker (Advanced) DOCKER_NETWORK, DOCKER_NETWORK_PRUNE,
DOCKER_SWITCHER
network_firewall (Advanced) UFW, UFWD, WHITELIST_PORT_UPDATER [new]
network_domains (field-Adv) SSLCERTS
security_ssh (Advanced) SSHKEY_DOWNLOADER, SSH_DISABLE_PASSWORDS,
BCRYPT_SAVE, GLUETUN_FOR_ALL [new]
general_terminal (Advanced) CRONTAB, CONFIGS_CHECK,
CONFIGS_AUTO_UPDATE, CONFIGS_AUTO_DELETE,
MISSING_IPS, CONTINUE_PROMPT,
SUGGEST_INSTALLS, SUGGEST_METRICS
general_install (Adv+DEV) CONFIG, COMMAND, WEBUI, WEBUI_SERVICE,
DATABASE, PASSWORDS, DOCKER_CE,
DOCKER_COMPOSE
The install-time eight are marked **ADVANCED** **DEV** — invisible
unless Developer Mode is on AND "Show Advanced Options" is expanded.
Each field's description was updated to note "Disabling on an existing
install will brick the system" / "install-time choice only" so a user
who does get to the toggle understands the gun before pulling the
trigger.
Other cleanup that fell out:
- Removed `configs/features/` directory entirely.
- Added the two new subcategories to SUBCATEGORY_ORDER in
network/.category and security/.category.
- Dropped the `category === 'features'` Danger Zone header special-case
in config-manager.js and its .danger-zone-section--header-only CSS
variant (sole user).
- Trimmed an obsolete "Edit the features config" notice in
check_requirements.sh.
Signed-off-by: librelad <librelad@digitalangels.vip>
Split the rootless network-driver knob out of network_docker into a
dedicated advanced subcategory (configs/network/network_rootless), marked
**ADVANCED** at both the file-header and field level so it's hidden behind
the advanced toggle in the WebUI. Registered in the network .category
order after network_docker. Pure config relocation — the install script
reads CFG_ROOTLESS_NET as a sourced var, so no script change needed.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
Switch the rootless network stack from slirp4netns+builtin to pasta+
implicit (faster and propagates the real client source IP). The earlier
pasta+builtin attempt bricked the daemon because rootlesskit rejects
mismatched net/port-driver pairs; expose a single CFG_ROOTLESS_NET knob
(pasta default, slirp4netns fallback) and derive the matching port
driver in-script so an invalid combo can't be configured. Disable
userland-proxy in the rootless daemon.json (merged, not clobbered) so
containers see the real source IP. Both driver binaries are always
installed, so switching is a config flip + rootless re-setup.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
A free, open, self-hosted app platform (GNU AGPLv3): one-click app deploys,
Traefik reverse proxy with automatic SSL, rootless Docker support, gluetun
VPN routing, and a web dashboard to manage it all.
Free & open forever to self-host; optional paid hosted services fund it.
See PROMISE.md.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
