Make `update.sh` fetch the CI-built release tarball by default instead of
rebuilding the SPA on the server, so a normal update needs no Node/npm on the
box. This keeps updates working on old distros, ARM/Pi and tiny hosts where the
vite 8 toolchain (Node 20.19+/22.12+) can't or shouldn't run — the Node
requirement stays a build-time/CI concern, not a runtime one.
On-box source rebuilds remain available and explicit: --source / --main (main
branch), --branch <name>, or BUILD_FROM_SOURCE=1. --branch now implies source
mode (clears the release default). npm is only required for those paths.
Test: test_update.sh +1 (mode mapping — default=release, --source/--branch/
BUILD_FROM_SOURCE=source). 49 passed / 0 failed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The vite 8 upgrade (dcf05d1) makes the frontend build require Node ^20.19.0 ||
>=22.12.0 — on anything older npm silently skips rolldown's native binary and
`npm run build` dies with a cryptic MODULE_NOT_FOUND. Servers that build the SPA
on-box (source install + every update) would break their next update. So:
- install.sh node_ready() now gates on the real vite 8 floor (was Node >=18) and
provisions NodeSource 22 LTS when the host Node is too old.
- update.sh gains _node_build_ok(): build_frontend_bundle refuses (returns 1 →
caller rolls back) and the Docker-host rebuild halts, both with an actionable
"upgrade Node" message instead of a rolldown stack trace.
- Dockerfile + CI (release, release-smoke, extensions, scripts-nightly) bumped
node 20 -> 22 so the shipped/pre-built bundle is built on a compatible Node.
Also fixes a pre-existing parity bug the operator caught: update.sh rendered the
systemd unit WITHOUT substituting @BIND_HOST@ (install.sh does), so an update
left the literal placeholder and gunicorn would fail to bind. update.sh now
substitutes it (loopback default, SERVERKIT_BIND_HOST override) like install.sh.
Tests: test_update.sh +3 (node-floor gate, build refusal on old Node,
@BIND_HOST@ substitution) — 48 passed / 0 failed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Two gaps for existing installs:
- The tint ran only in install.sh, so `serverkit update` (which has its own
build path in scripts/update.sh) would rebuild with the DEFAULT color and a
fixed favicon.ico — existing installs would never get a unique mark.
- Re-tinting on every rebuild would also repaint the box on each update.
Fix: assign the color ONCE and persist it in /etc/serverkit/favicon-color
(survives updates), then re-apply the SAME color from both install and update.
update.sh applies it to the staged dist unconditionally (after the guarded
build), so it works whether dist was rebuilt (source mode) or shipped prebuilt
(release). An install that predates the feature picks up a color on its first
update and keeps it thereafter — a car keeps its paint.
Verified: bash -n on both scripts; persistence confirmed (re-run reuses the
stored color).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The 1.7.25 -> 1.7.33 update broke on panels that still had the retired
serverkit-workflows extension on disk: preserve_installed_plugins carried
it into the fresh tree, where its reactflow import (removed with plan 45)
sank the whole bundle build and blocked the update.
- RETIRED_PLUGIN_SLUGS: the carry-forward now skips slugs the product
deliberately deleted, and docker in-place mode strips their leftovers
after the hard reset (untracked dirs survive it).
- Quarantine-and-retry: when the bundle build fails and plugins were
carried forward, move them into /var/backups/serverkit/quarantined-
plugins-<ts> and retry once -- fail the plugin, never the update.
The updater self-refreshes from main before running, so this protects
every panel on its next `serverkit update` once merged.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
serverkit migrate-db forwarded the wrapper's own name to cli.py, which
only defines db-migrate — the command has failed with 'No such command'
since the rename. Fix the forward and stop the drift class entirely:
- cmd_panel_cli forwards Click-only verbs verbatim (manifest, services,
apps, repair, login-url, support-bundle, db-migrate/status/history;
panel-status/panel-doctor where a native bash name collides)
- serverkit completion prints a bash completion script; install.sh and
update.sh drop it into /etc/bash_completion.d (best-effort), the
uninstall lib removes it
- test_cli.sh T17-T19: migrate-db forwarding, dispatch reachability,
and a two-way parity guard (cli.py verbs <-> dispatch <-> completion);
test_update.sh T29 covers refresh_bash_completion
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
A test box's panel domain kept serving a Jun 25 bundle after the Jul 3
update — the domain's custom vhost still proxied the retired :3847
frontend container, and the old bundle's calls to deleted legacy
marketplace endpoints read as 'Failed to load extensions'. It looked
exactly like a browser/CDN cache problem (it wasn't — cf-cache-status
was DYNAMIC; the origin itself was stale).
- both stock confs: expires -1 on the SPA entrypoint (emits
Cache-Control: no-cache WITHOUT discarding server-level security
headers, unlike add_header-in-location) — a cached index.html
references hashed assets that vanish on the next blue/green switch
- update.sh refresh_config now runs report_stale_panel_vhosts: warns,
naming the file, when any enabled vhost still proxies :3847;
observation-only per R1, silent on a missing sites-enabled dir,
added to the fresh-box loop per policy
- proving tests: entrypoint no-cache asserted for both confs; stale
vhost flagged (and clean one not); missing-dir silence (42 passed)
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- PULL_REQUEST_TEMPLATE gains a scripts-only checklist condensing the
failure-semantics rules (guarded observations, no &&-tail returns,
capture-safe stdout, errexit-immune helpers, fresh-box loop policy,
proving test in the same commit)
- record the self-update channel decision in the bootstrap header:
keep fetching from main, gated by the update-e2e CI job, preserving
one-push-fixes-the-fleet
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The July 2 outage function had a unit test — with a populated fixture
only. This encodes the missing net:
- fresh-minimal-box fixture loop: every observation/discovery/snapshot/
report function in update.sh (17) and install.sh (16) must survive a
zero-app box under set -Eeuo pipefail; policy comment requires new
functions to be appended
- scripts/test/stubs.sh: shared failing-stub factories (systemctl exit
5, docker fail/empty, curl exit 22, GitHub rate-limit JSON)
- assertion sweep: 43 bare capture-then-compare sites now include exit
status in the assertion
- best-effort contract test: the run block's real APP_BASELINE ->
report chain exits 0 on a fresh box AND on a genuine regression
- fix(update): the loop immediately caught report_failure's trailing
'[ -n $UPDATE_LOG ] && printf' returning 1 when UPDATE_LOG is empty
(same species as the outage) — converted to if, added to the loop
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- find-based backup pruning; empty/missing BACKUP_DIR is a no-op (U1)
- download_release progress to stderr; stdout is the tarball path only (U2)
- guard bare systemctl stop/start/daemon-reload in forward+rollback paths (U3,U4,U8,U13)
- ROLLING_BACK=1 inside rollback(); never runs twice via the EXIT trap (U5)
- npm preflight for source updates; guarded frontend build pipeline (U6)
- empty-ORIG_ARGS re-exec guard, cleanup_on_exit return 0, df -Pk,
SIGPIPE guards, cd leaks subshelled, local typo (U7,U9-U12,U14)
- 14 new proving assertions in test_update.sh (35 passed)
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Allow failures when querying GitHub release tag (prevent pipeline from aborting) and add a unit test ensuring discover_app_upstreams tolerates an empty app-locations directory.
Changes:
- scripts/update.sh: make the curl|grep pipeline resilient by appending `|| true` so the command substitution won't fail the script when the GitHub API call returns nothing.
- scripts/test/test_update.sh: add test T16b to verify discover_app_upstreams does not abort under `set -euo pipefail` when the app-locations directory is empty.
These changes prevent hard failures during release detection and add coverage for empty-directory handling.
Suppress a non-zero exit from the pipeline in discover_app_upstreams by appending `|| true` after the sort. This prevents the script from exiting with an error when no matching proxy_pass entries are found in APP_LOCATIONS_DIR (e.g., empty or missing files). Improves robustness of scripts/update.sh in scenarios with no app upstreams configured.
A panel update deploys a fresh clone/tarball preserving only .env and
the DB, wiping app/plugins/<slug> + src/plugins/<slug> for any
URL/registry/upload-installed extension — the surviving InstalledPlugin
row then flipped to error at next boot. Two-layer fix:
- update.sh: preserve_installed_plugins carries user-installed plugin
dirs from the old tree into the new one (skipping anything the new
tree already ships and __pycache__), before the frontend build so
carried UIs recompile. Covered by harness test T18.
- boot repair pass (plugin_service.repair_missing_plugins, runs before
load_all_plugins): builtin slugs reinstall from builtin-extensions/,
url installs re-download from source_url (force + no hot-load so the
loader registers once), sourceless uploads get a clear re-upload
error. install_from_url/path grew force/hot_load plumbing.
4 new repair tests (16 total in the pipeline suite); update.sh harness
20 passed.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Turns the zero-downtime promise into an actual check. The updater now
snapshots which managed-app upstreams are reachable through nginx
*before* the blue/green switch, re-probes after the graceful reload, and
reports any app that was serving and has since gone dark.
- discover_app_upstreams scans /etc/nginx/serverkit-locations/*.conf for
the per-app proxy_pass upstreams (host:port).
- probe_app_upstreams / snapshot_app_reachability record up/down (any
HTTP status = up; a refused/timed-out connection = down).
- report_app_uptime_regressions diffs before-vs-after and warns for any
up->down app, ignoring apps that were already down. Best-effort: it
never fails an otherwise-healthy update, just surfaces the regression.
- New "Verifying App Uptime" phase wired into the main flow; baseline
captured before the backend stop.
Tests: T16 (upstream discovery), T17 (regression detection both ways).
19 passed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The panel is now fully off Docker: the React SPA is served as static
files directly by host nginx from frontend/dist, eliminating the
serverkit-frontend container and the double nginx hop (host nginx ->
container nginx -> dist). Docker is now used ONLY for managed app
workloads.
- nginx sites (serverkit.conf + serverkit-insecure.conf): `location /`
now roots at /opt/serverkit/frontend/dist with a try_files SPA
fallback and a long-cache /assets/ block, instead of proxying
127.0.0.1:3847. Root tracks the /opt/serverkit symlink so blue/green
updates swap assets atomically.
- install.sh: launch_services no longer builds/starts a frontend
container; adds apply_frontend_root (rewrites the dist root for a
custom SERVERKIT_DIR) and selinux_label_frontend_dist (httpd_sys_-
content_t so SELinux hosts can read the bundle from /opt).
- update.sh: refresh_config carries the same root rewrite across
upgrades; selinux_label_dist relabels the switched-in slot; dropped
the `docker compose up -d --force-recreate frontend` from both the
forward and rollback paths.
- docker-compose.yml: frontend service moved behind a `legacy-frontend`
profile (opt-in escape hatch); default `up -d` starts nothing.
- docs/DEPLOYMENT.md: documents the off-Docker panel model.
Tests: T14 (refresh_config rewrites dist root for custom install dir),
T15 (shipped nginx configs serve static, never proxy :3847). 16 passed.
Note: live nginx -t / SELinux file-serving not validated on a RHEL box
from this dev host; logic is best-effort guarded.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Host nginx is the front door for every managed app (it reverse-proxies
their containers via /etc/nginx/serverkit-locations/*.conf). The updater
used to `systemctl stop nginx` for the whole blue/green switch window,
which blacked out every unrelated hosted site for 10-60s during a panel
update. The slot switch only ever changes nginx config, never anything
nginx serves from the slot, so a stop was never required.
Add reload_nginx_graceful(): validate config (nginx -t) then
`systemctl reload nginx` - keeps listening sockets and in-flight
connections alive, so apps never blink. Starts nginx if it happens to be
down. Wired into both the forward update flow and rollback(); only the
panel backend is now cycled. Dropped the stray frontend-only
`docker compose up -d backend` line.
Tests: T11 reloads-not-stops a running nginx, T12 starts a stopped
nginx, T13 guards against `systemctl stop nginx` reappearing. 13 passed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Hardening plan §6. Reduces the distro-specific if/else surface and handles
edge environments:
- Dependency manifest (scripts/deps/manifest.yaml): declarative per-family
package/python/node/docker/init spec. Consumed directly by the Phase 5
Python bootstrap; install.sh mirrors it inline (it can't parse YAML before
Python exists in the curl|bash path).
- New sourceable libs (built in parallel, each shellcheck-clean + unit-tested):
- scripts/lib/pkg.sh — pkg_detect/refresh/install/is_installed across
apt/dnf/yum/zypper/pacman/apk (PKG_MGR_OVERRIDE + PKG_DRY_RUN for tests).
- scripts/lib/init.sh — init_detect + start/stop/enable/disable/reload/
is_active across systemd/openrc/runit/sysvinit/none (INIT_OVERRIDE/DRY_RUN).
- scripts/lib/env.sh — is_container/is_wsl/has_systemd (override-friendly).
- ID_LIKE handling (G5/6.5): install.sh's os_family_from() (now a pure,
testable function reading ${SERVERKIT_OS_RELEASE}) maps unknown IDs via
ID_LIKE to debian/rhel/fedora/suse/arch/alpine — rhel before fedora so RHEL
clones pick the RHEL Docker repo.
- zypper + pacman + apk (G6/6.6): choose_pkg_manager/refresh_pkg_index/pkg_add,
provision_docker and provision_python gained suse/arch/alpine branches;
Docker enable/start is now init-aware (systemd OR OpenRC) so it no longer
aborts on Alpine.
- Templated systemd unit (6.7): serverkit-backend.service → templates/
serverkit-backend.service.in, rendered (render_service_unit) at install and
in refresh_config so a custom SERVERKIT_DIR/venv/log path is honored.
install_service warns-and-skips enable when has_systemd is false (G5).
- nginx TLS floor as a reversible conf.d snippet (6.8): install.sh + update.sh
prefer /etc/nginx/conf.d/serverkit-tls.conf when nginx.conf doesn't already
declare ssl_protocols (RHEL/Fedora/SUSE), falling back to the in-place edit
on Debian/Ubuntu to avoid a 'duplicate ssl_protocols' error. uninstall
removes only that snippet.
Tests: new scripts/test/test_lib.sh (13) + 4 new test_install.sh cases
(os_family_from, render_service_unit, harden_global_tls A/B). 13+15+10 pass;
shellcheck error+warning clean across all new/changed shell.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Updater robustness from the hardening plan §5:
- Version comparison before updating (G3): is_already_current compares the
local VERSION to the target release tag (release mode) or the local checkout
HEAD to the remote branch HEAD via `git ls-remote` (branch/main mode). When
current, both the hybrid and docker flows print "Already up to date" and exit
0 — unless --force. Offline/indeterminate always proceeds rather than wrongly
blocking.
- Dry-run fidelity: new run_in_dir reports the working directory a command
would run in, replacing the `run_or_dry cd X && run_or_dry compose ...` chain
that printed compose commands with no cwd context.
- Rollback hardening: migrate_database now runs against the NEW slot's DB copy
(slot-absolute path) instead of the /opt/serverkit symlink that still
resolves to the live old slot — so a rollback hands the old code a
byte-for-byte-unchanged database (PostgreSQL/shared DBs migrate directly, as
before). rollback_docker guards `git reset` on a non-empty SHA with a clear
warning. Both rollback paths now run a post-rollback health check and say
plainly when even the rollback is unhealthy.
- Telemetry/logging: halt() always prints the full log path; both summaries
gained an "old → new", mode (release/branch/main, +docker), and duration
line, plus the log path.
Tests: test_update.sh gains versions_equal, is_already_current force/offline
short-circuits, and a flask-stub proof that migrate_database targets the new
slot's DB (T10). 10 passed / 2 skipped locally; shellcheck error+warning clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Critical install/update/uninstall hotfixes from the hardening plan
(docs/plans/INSTALLER_UPDATER_UNINSTALLER_HARDENING_PLAN.md §4):
- Firewall automation (G1): new sourceable scripts/lib/firewall.sh detects
firewalld/ufw/nftables/iptables and opens 80/443; install.sh runs
configure_firewall, update.sh re-ensures it idempotently. Exactly what we
open is recorded in /etc/serverkit/install-state.json (scripts/lib/state.sh)
so uninstall undoes only our rules. Fixes the #1 "installed but unreachable"
failure on fresh RHEL-family boxes.
- Accept Python 3.11 OR 3.12 (G2): locate_python now iterates
python3.12/3.11/3 and provision_python installs the distro package
(python3.11 on Debian 12, 3.12 on Ubuntu/Fedora, 3.11/3.12 on RHEL) before
ever falling back to a source compile.
- Use $PYTHON_BIN for secret generation instead of a bare python3.
- Distro-first Node 20 (replacing unconditional NodeSource): install the
distro nodejs+npm, fall back to NodeSource only when it's missing or < 18,
and validate node>=18 before continuing.
- Unify uninstall (G4): new scripts/lib/uninstall.sh is the single canonical
teardown routine shared by uninstall.sh and `serverkit uninstall` (they had
drifted — one ran `down -v`, one didn't). Default preserves user data
(volumes kept, DB snapshotted to backups); --purge/--delete-volumes removes
volumes+DB+data dirs; --keep-data preserves /etc + /var/lib + backups;
--yes/--dry-run added; honors SERVERKIT_DIR. Removes the apt lock-wait
drop-in on uninstall.
Tests: new scripts/test/test_install.sh (11 cases, source-able install.sh)
covers python/node detection, firewall dry-run + state, and the uninstall
data-handling matrix. Existing test_update.sh still green. shellcheck clean
(error + warning) on all new/changed shell.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Two reliability gaps remained after the failure cascade:
1. Stale-updater trap. The updater that runs is whatever is installed, so an
old update.sh fails in ways the current code already handles and can't fix
itself — exactly what left a box stuck. maybe_reexec_latest_updater fetches
the newest update.sh for the target ref and re-execs into it (guarded by
SERVERKIT_UPDATER_REEXECED, skipped offline/dry-run/opt-out, only after a
bash -n check). From this version on, 'serverkit update' is reliable no
matter how stale the box is.
2. No concurrency guard. acquire_update_lock takes an flock so two updates
can't clobber the same blue/green slot or race docker compose; the lock
auto-releases on exit and degrades gracefully where flock/the path is
unavailable.
Both are covered by scripts/test/test_update.sh (guard no-ops; lock
refuses a held lock, succeeds when free).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Harden update.sh against the class of failure that left a box silently stuck
on the old version, and make it testable without a real deploy.
Robustness (cascade):
- L5 loud failures: `set -Eeuo pipefail` (the -E/errtrace makes the ERR trap
fire inside functions too) + a report_failure ERR trap that names the phase,
exit code, line and command, plus always-on logging to
/var/log/serverkit/update-*.log. No more silent drop-to-prompt.
- L4 docker-path rollback: snapshot the previous git SHA, :rollback image tags
and dist.rollback before mutating; if the new backend is not healthy within
90s, revert to the snapshot and halt (was: warn and continue).
- L6 self-heal: pin COMPOSE_PROJECT_NAME (kills the symlink-rename warning) and
reclaim a stale inactive blue/green slot left by a prior failed hybrid run.
Testability:
- Parameterize the system dirs (SERVERKIT_NGINX_DIR / _LETSENCRYPT_DIR /
_SYSTEMD_DIR / _CONFIG_DIR) and add SERVERKIT_NO_LOG, so refresh_config can
run against fixtures instead of the host /etc.
- Make update.sh source-able via a BASH_SOURCE guard so functions can be
exercised directly.
- scripts/test/test_update.sh: plain-bash unit tests (no deps, no server) that
reproduce the missing-serverkit.conf regression and cover the
detection/slot/report logic.
- .github/workflows/scripts-ci.yml: bash -n + shellcheck + the unit tests on
changes to scripts/**, install.sh, serverkit.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The panel-domain recovery greps /etc/nginx/sites-available/serverkit.conf,
but HTTP-only boxes never have that file. Under `set -euo pipefail` the
no-match/missing-file grep (exit 1/2) propagated and silently killed the
updater at the "Refreshing Configuration" phase — before the atomic switch
and before PREVIOUS_DIR is set, so no error and no rollback. The update
appeared to "do nothing" and the version never advanced.
Guard the command substitution with `|| true` (matching the idiom used a
few lines below for panel-domain).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
serverkit update (update.sh) assumed the hybrid install shape (backend in a
host venv under systemd, frontend in Docker) and unconditionally ran
`source $INSTALL_DIR/venv/bin/activate`. On an all-Docker deployment (backend
AND frontend as compose services, no host venv) that crashes with
"venv/bin/activate: No such file or directory" -- and the preceding "stop
services" step leaves the box down with no restart.
Add is_docker_deployment() (compose file present + no host venv + a
serverkit-backend container exists) that routes to update_docker_compose():
in-place git sync, optional host frontend build when ./frontend/dist is
bind-mounted, `docker compose build` (the running version keeps serving until
the build succeeds), `up -d` (backend auto-migrates on boot), then a
container-health check. The hybrid venv/systemd/blue-green path is unchanged.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Make email handling case-insensitive (queries + model normalization) to prevent duplicate accounts. Add SiteDomainService.panel_origin() helper and use it across services to build public URLs (Gitea, WordPress, Roundcube) and Django ALLOWED_HOSTS. Add optional custom-domain support when creating WordPress sites and propagate domain to Roundcube install. Improve environment domain fallback to prefer panel/base domains over .localhost. Small Dockerfile healthcheck tweak (use 127.0.0.1). Update install/update/build scripts to always (re)create virtualenv locally for release installs. Remove unused frontend CreateSiteModal and expose domain field in WordPress page.
KIMI's optional-SSL commit hardened ssl_protocols/ssl_ciphers per-vhost but
left the system nginx.conf http{} defaults untouched, so the default server
and any non-ServerKit vhost could still negotiate TLS 1.0/1.1 and weak ciphers
(the scan's "insecure TLS versions" / "weak ciphers in TLS 1.2" findings).
- install.sh: harden_global_tls() rewrites (or injects) ssl_protocols and
ssl_ciphers in /etc/nginx/nginx.conf to TLS1.2/1.3 + AEAD-only. Editing the
line in place avoids nginx's duplicate-directive error on Debian/Ubuntu,
which already set ssl_protocols in http{}.
- update.sh: re-applies the floor so existing installs harden on upgrade too.
- Persist the panel domain to /etc/serverkit/panel-domain; update.sh recovers
it from there (or the live cert path) instead of the commented-out .env
SERVERKIT_PUBLIC_URL grep, which never matched -> secure installs were
getting the YOUR_DOMAIN placeholder re-applied and nginx -t failing on update.
- update.sh now degrades to the HTTP config when a secure cert is missing,
rather than leaving nginx unable to reload.
Global TLS settings are inert in HTTP-only mode, so optional SSL is unaffected.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- Add secure nginx config with TLS 1.2+, HSTS preload, CSP, and security headers
- Add insecure HTTP fallback config for users who cannot or do not want HTTPS
- Make installer best-effort SSL: try Let's Encrypt, fall back to HTTP without failing
- Preserve secure/insecure SSL choice across updates via /etc/serverkit/ssl-mode
- Support SERVERKIT_SKIP_SSL=1 to disable HTTPS entirely
- Add CAA record to default DNS zone template
- Harden generated per-app nginx configs with HSTS preload, CSP, and security headers
- Align Flask security middleware headers with nginx edge config
