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RenewCMS/features/updates_restart_helper.feature

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Feature: Updates part 3: Restart, the privileged helper and rollback
As the owner of a RenewCMS site
I want one Restart button that installs the staged release, or just restarts the site, and puts the old version back if the new one does not come up
So that I can update from the browser while the app itself stays unprivileged and sandboxed
Background:
Given slices 1 to 3 of Updates ship in one release
And the app never gains privileges: the documented systemd unit keeps ProtectSystem=strict and only the data directory writable
And only the helper runs as root; it is the same binary, started as "renewcms apply-update" by a oneshot systemd service
And the data directory is the directory that holds DB_FILE; no new env var is added
And the files in the data directory are:
update-restart-request.json (marker, written by the app):
{"kind":"update"|"restart","tag" (update only),"requested_at" RFC3339 UTC,"requested_by" user_id};
update-result.json (written by the helper):
{"outcome":"running"|"succeeded"|"rolled_back"|"failed","kind","tag","from_version","started_at","finished_at"};
update-helper.json (status file, written by enable-browser-updates):
{"version":1,"service","binary","data_dir","installed_at"};
update-running.json (written by the server at every startup):
{"version","pid","started_at"}
And the marker is written atomically (temp file in the data directory, then rename) and deleted by the helper after reading it
And the technical reason of a failure goes to the log or journal only, never into a file the app serves or a response
And the domain package internal/domain/update (stdlib only) gains these interfaces, each faked in tests:
RestartRequestStore (write, read, delete the marker),
ResultStore (read, write and delete the result),
RunningInfoStore (the server writes update-running.json; the helper reads it),
HelperFilesystem (lstat, open with no-follow, read, create-exclusive, copy, rename, remove, chmod, make a fresh private
temp directory, all of them symlink-aware),
ServiceControl (restart and status of the systemd service),
HealthChecker (GET http://127.0.0.1:<port>/healthz, true on 200),
Clock
And the helper logic depends only on those interfaces and on update.SignatureVerifier from slice 2 with the embedded release.pub
And O_NOFOLLOW and lstat behaviour sit behind HelperFilesystem so the logic is tested on any OS; the real adapter is Linux-only
(build-tagged) and is covered by the manual systemd checklist
And RequestRestartUseCase and the extended GetUpdateStatusUseCase depend only on domain interfaces; handlers in
api/handlers/update receive them through NewHandler; only api/dependecyInjection.go builds the adapters
And POST /v1/system/update/restart is mounted in NewSystemRouter behind jwtauth.Verifier, jwtauth.Authenticator,
RequireCurrentToken, RequireVerifiedUser and RequireOwner; there is no limiter
And its optional JSON body is {"kind":"update"|"restart"}, bound to a request struct with
validate:"omitempty,oneof=update restart" and checked by validator.Validate.Struct; an empty body is allowed
And the checks on POST run in this order: no cookie or stale token (401), unverified (403), not owner (403),
malformed body or invalid kind (400), can_apply false (409), job downloading or verifying (409), a restart already pending
or running (409), kind that does not match the state (409), marker write error (500), then 202
And with no body the server picks by state: job "ready" gives kind "update", anything else kind "restart"
And the kind given must match: "update" needs a job "ready"; "restart" needs no job "ready"; otherwise 409 and nothing is written
And POST download and POST restart delete update-result.json before they start a new job or write a marker
And the 202 body is the status JSON with state "restarting" and started_at equal to the marker's requested_at (server clock)
And errors are plain text from http.Error and carry no path or technical detail
And GET /v1/system/update has no side effects; it keeps the 12 keys of slice 1 and gains exactly one key, "finished_at":
the result's finished_at (RFC3339 UTC) whenever a result file exists, otherwise null, whatever the state
And state is one of idle, downloading, verifying, ready, restarting, succeeded, failed, derived from the files by one rule:
marker present, or result "running" younger than 5 minutes: "restarting";
result "running" older than 5 minutes and no marker: "failed", error "install";
result "succeeded", kind "update", tag equal to the running version: "succeeded";
result "succeeded" for kind "restart", or kind "update" whose tag is no longer the running version: "idle";
result "rolled_back": "failed", error "rolled_back";
result "failed": "failed", error "install";
otherwise the slice 2 job state; a missing or corrupt result file counts as no result
And a result persists and is read the same on every GET until POST download or POST restart deletes it
And error is null, "download", "verification", "rolled_back" or "install"
And GET /healthz is unchanged: body "ok", no version header
And the server writes update-running.json at every startup, after the listener is bound and before it serves, atomically; a write error
is logged and is not fatal
And the helper judges a restart by two things: GET /healthz answers 200 AND update-running.json holds the expected version AND it is
NEW: its pid differs from the pid read before the restart, or its started_at is later than the instant the restart command
was issued; a stale file with the old pid or started_at never counts
And main gains a minimal dispatcher before the normal start: the subcommands enable-browser-updates, disable-browser-updates and
apply-update run their own code and never read .env, open the database or listen; "--version" and the normal start are unchanged
And the new subcommands never write a secret value or an env value into a unit file
Scenario: Request an update restart, happy path
Given the owner, can_apply true and a job "ready" for "v2.3.0-beta"
When the owner sends POST /v1/system/update/restart with no body, or with {"kind":"update"}
Then the status is 202 and the body is the status JSON with state "restarting"
And the marker holds kind "update", tag "v2.3.0-beta", requested_by the owner's user_id and requested_at
And update-result.json was deleted first
And the running binary, the staged files and the database are unchanged by the app
And GET reports state "restarting" for any verified user
Scenario: Request a plain restart
Given the owner, can_apply true and no job "ready"
When the owner sends POST /v1/system/update/restart with no body, or with {"kind":"restart"}
Then the status is 202, the marker holds kind "restart" and no tag, and GET reports state "restarting"
Scenario Outline: The kind must match the state
Given the owner, can_apply true and <state>
When the owner sends POST /v1/system/update/restart with {"kind":"<kind>"}
Then the status is 409, no marker is written, the result file and the job are untouched
Examples:
| state | kind |
| no job "ready" (idle) | update |
| a job "failed" | update |
| a job "ready" | restart |
Scenario: Restart site never installs an update another owner just made ready
Given owner A opened the Plain restart dialog while the job was idle
And owner B then made a job "ready"
When owner A confirms and the SPA sends {"kind":"restart"}
Then the status is 409, nothing is installed and the staged files are untouched
And the SPA reloads the card and shows "Ready to install"
Scenario Outline: A bad body is a 400
Given the owner and can_apply true
When the owner sends POST /v1/system/update/restart with <body>
Then the status is 400 with a plain text body and no marker is written
Examples:
| body |
| {"kind":"upgrade"} |
| {"kind":""} |
| {"kind":7} |
| {"kind":"update" |
| not json |
Scenario Outline: POST is guarded like the other system routes
When <caller> sends POST /v1/system/update/restart
Then the status is <status> and no marker is written and no result is deleted
Examples:
| caller | status | body |
| no jwt cookie | 401 | the existing 401 text |
| a stale token version | 401 | the existing 401 text |
| an unverified owner | 403 | the existing unverified text |
| an admin | 403 | apperr.OwnerRequiredErrorMessage |
Scenario Outline: Restart is refused with 409
Given the owner and <condition>
When the owner sends POST /v1/system/update/restart
Then the status is 409, the existing marker, result and job are untouched and no new marker is written
Examples:
| condition |
| can_apply is false (no update-helper.json) |
| the job state is downloading |
| the job state is verifying |
| a marker is already pending |
| the result file reads "running" (helper at work) |
Scenario: Two restarts at once write one marker
When two owners send POST /v1/system/update/restart concurrently
Then exactly one answers 202 and the other 409 and one marker exists
Scenario: The marker cannot be written
Given the data directory is not writable, or a directory sits where the marker file goes
When the owner sends POST /v1/system/update/restart
Then the status is 500 with a plain text body without paths, no marker exists and the job record is untouched
Scenario Outline: GET derives the state from the files and never changes them
Given <files>
When any verified user sends GET /v1/system/update twice
Then both answers are identical, state is <state>, error is <error> and finished_at is <finished>
And no file in the data directory changed
Examples:
| files | state | error | finished |
| a marker is present | restarting | null | null |
| result "running" written 30 s ago | restarting | null | null |
| result "running" written 6 minutes ago, no marker | failed | "install" | its value |
| result "succeeded", kind "update", tag equal to the running version | succeeded | null | its value |
| result "succeeded", kind "update", tag older than the running one | idle | null | its value |
| result "succeeded", kind "restart" | idle | null | its value |
| result "rolled_back" | failed | "rolled_back" | its value |
| result "failed" | failed | "install" | its value |
| no marker, no result | idle | null | null |
| a corrupt result file | idle | null | null |
Scenario: The result lives until the next job
Given a result "rolled_back"
When the owner sends POST /v1/system/update/download and the job reaches "ready"
Then the result file was deleted by the POST, GET reports state "ready", error null and finished_at null
And GET /v1/system/update still has exactly the 12 keys of slice 1 plus finished_at
Scenario: After a successful update the status is consistent
Given a result "succeeded" for "v2.3.0-beta" and the running version "v2.3.0-beta"
Then GET reports state "succeeded", available false, current "v2.3.0-beta" and finished_at set
Scenario: The server writes update-running.json at startup
When the server starts with version "v2.3.0-beta"
Then update-running.json holds {"version":"v2.3.0-beta","pid":<its pid>,"started_at":<now>} written atomically
And it is written after the listener is bound and before requests are served
And a write error is logged and the server still starts
And a second start replaces the file with the new pid and started_at
And the file is not served by any route
Scenario: Healthz is unchanged
When a client sends GET /healthz
Then the status is 200, the body is "ok" and there is no version header, and the route stays public
Scenario Outline: The command dispatcher
When the binary is run with "<args>" and an empty environment
Then <outcome>
Examples:
| args | outcome |
| --version | it prints the version, exits 0 (unchanged from slice 2) |
| enable-browser-updates | it runs the installer, never reads .env or opens the database |
| disable-browser-updates | it runs the uninstaller, never reads .env or opens the database |
| apply-update | it runs the helper, never reads .env or opens the database |
| no arguments | the normal server start |
| an unknown subcommand | a usage message on stderr and a non-zero exit, the server is not started |
Scenario Outline: enable-browser-updates refuses when it cannot work
Given <situation>
When "renewcms enable-browser-updates" runs
Then it exits non-zero with the clear message "<message>" and writes nothing
Examples:
| situation | message |
| the OS is not Linux | Browser updates need Linux with systemd. |
| Linux without systemd (no /run/systemd/system) | Browser updates need systemd, which this machine is not running. |
| not run as root | Run this command as root, for example with sudo. |
| no unit for the service and no flags | Could not find the RenewCMS service. Pass --service, --binary and --data-dir. |
| the data directory cannot be resolved | Could not find the data directory. Pass --data-dir. |
Scenario: enable-browser-updates installs the units
Given systemd on Linux, root, and an existing renewcms.service with ExecStart=/opt/renewcms/renewcms and ReadWritePaths=/var/lib/renewcms
When "renewcms enable-browser-updates" runs
Then it reads the service name, binary path and data directory from the unit, with --service, --binary and --data-dir overriding them
And it writes renewcms-update.path (PathExists= the marker) and renewcms-update.service (Type=oneshot, User=root,
ExecStart=<binary> apply-update with the service, binary, data directory and port as flags)
And the port comes from --port, else from PORT in the service's environment file, else 8080
And it runs daemon-reload and enables and starts the path unit
And it writes update-helper.json last, so can_apply becomes true only when everything else worked
And no secret and no environment value is written into either unit
And it prints what it installed and how to undo it
Scenario: enable-browser-updates is idempotent
Given it ran once
When it runs again, including after the binary path or service name changed
Then the units and the status file are rewritten to the current values, no duplicate unit exists and the exit is 0
Scenario: enable-browser-updates undoes its own partial work
Given writing the second unit, daemon-reload or enable fails
Then the first unit is removed, update-helper.json is not written and the exit is non-zero with the reason
Scenario: disable-browser-updates
Given browser updates are enabled
When "renewcms disable-browser-updates" runs
Then the path unit is stopped and disabled, both unit files and update-helper.json are removed, daemon-reload runs
And the marker and result files, the staged files and backups are left in place
And running it again, or where it was never enabled, exits 0 with a message
And can_apply reads false afterwards
Scenario: apply-update, a plain restart
Given a marker of kind "restart" and update-running.json with pid 100 and started_at T0
When the helper runs
Then it reads the marker without following symlinks, deletes it, and writes the result "running" with started_at
And it records the current update-running.json, restarts the service once and polls until /healthz answers 200
and update-running.json is new (pid differs from 100, or started_at is later than the restart instant)
And it then writes "succeeded" with kind "restart" and finished_at
And the binary and the staged files are untouched
Scenario Outline: A stale running file never counts as success
Given a marker and update-running.json that <staleness> while /healthz answers 200
When the helper polls
Then it keeps polling and it is not declared succeeded or rolled back until a new file appears or 60 s pass
Examples:
| staleness |
| still holds the old pid and old started_at |
| holds the target version but the old pid and an old started_at |
| is missing |
| is corrupt |
| holds the old version with a new pid (for an update) |
Scenario: apply-update, an update, happy path
Given a marker of kind "update" for "v2.3.0-beta" and a staged binary, checksums.txt and checksums.txt.sig under updates/v2.3.0-beta/
When the helper runs
Then it creates a fresh root-owned temp directory with mode 0700 and copies the staged files into it, opening each original with no-follow
And it verifies the signature of the COPIED checksums.txt with the embedded public key
And it verifies the SHA-256 of the COPIED binary against its checksums.txt line, ignoring the earlier job record
And it copies the current binary to <name>.previous, replacing an older .previous
And it writes the verified copy to a temp file in the binary's directory (mode 0755), checks that it still hashes to the verified value,
and installs it with an atomic rename; the original staged path is never installed
And it restarts the service and polls /healthz and update-running.json for up to 60 s
And when /healthz answers 200 and update-running.json is new and holds "v2.3.0-beta" it writes "succeeded", success being declared on the
first matching poll
And it removes the temp directory and updates/v2.3.0-beta/
And the marker was deleted before any other step ran
Scenario Outline: apply-update refuses an untrusted staged binary
Given a marker of kind "update" and <fault>
When the helper runs
Then the current binary is not touched, no .previous is written and the service is not restarted
And it writes "failed", logs the technical reason only, and removes the temp directory and updates/<tag>/
Examples:
| fault |
| the binary was changed after the job verified it |
| checksums.txt was changed |
| the signature is from a different key or is missing |
| checksums.txt has no line for the asset |
| the staged binary is missing |
Scenario Outline: apply-update refuses symlinks
Given a marker of kind "update" and <symlink>
When the helper runs
Then it never reads through the link, the current binary is untouched, there is no .previous and no restart
And it writes "failed" and logs which path was a symlink
And whatever the link pointed to is not read, copied, written or removed
Examples:
| symlink |
| the marker itself is a symlink |
| <data>/updates is a symlink to another directory |
| <data>/updates/<tag> is a symlink to another directory |
| the staged binary is a symlink to /usr/bin/something |
| checksums.txt is a symlink |
| checksums.txt.sig is a symlink |
| a symlink is placed at the result path or at a temp file name |
Scenario: A symlinked marker is removed, not followed
Given the marker is a symlink to a file outside the data directory
When the helper runs
Then the link itself is unlinked, the target is untouched, and the result is "failed"
Scenario: A file swapped after verification is not installed
Given the staged binary is verified and a fake attacker replaces the original staged path with other bytes right after the copy step
When the helper installs
Then the installed bytes equal the verified copy's bytes and not the swapped bytes
And the same holds for a swap during the .previous copy and the final rename
And a swap of the temp file in the binary's directory before the rename is caught by the re-hash and ends as "failed" with the binary untouched
Scenario: Result and temp files are written without following links
Given the service user placed a symlink at update-result.json or at a predictable temp name in the data directory
When the helper writes its result
Then it creates a temp file with create-exclusive and no-follow, then renames it over the result, and the link target is untouched
Scenario Outline: apply-update distrusts the marker
Given a marker whose tag is <tag>
When the helper runs
Then it writes "failed", the binary is untouched, the service is not restarted and nothing outside <data>/updates is read
Examples:
| tag |
| ../../etc/passwd |
| v2.3.0-beta/../../x |
| an empty string |
| v2.1.0-beta (older than the running version) |
| not-a-version |
Scenario Outline: apply-update rolls back when the new version does not come up
Given an update marker and <fault> after the new binary was installed and the service restarted
When the helper runs
Then within the 60 s window it restores <name>.previous over the binary atomically and restarts the service again
And it polls until /healthz answers 200 and a NEW update-running.json holds the old version
And it writes "rolled_back" with from_version and tag and removes the temp directory and the staged files
Examples:
| fault |
| /healthz never answers within 60 s |
| /healthz answers but update-running.json stays old |
| update-running.json holds another version |
| the service restart command fails |
Scenario Outline: apply-update failures around the swap
Given an update marker and <fault>
Then <outcome>
Examples:
| fault | outcome |
| copying to .previous fails | the binary is untouched, the service not restarted, result "failed" |
| the atomic install fails | .previous and the old binary are intact, no restart, result "failed" |
| the rollback restore itself fails | result "failed", logged loudly, exit non-zero |
| the old version never returns after rollback | result "failed" (not "rolled_back"), exit non-zero |
Scenario: The result is always written
Given any marker and any outcome, including a panic in the helper
Then update-result.json holds outcome, kind, tag, from_version, started_at and finished_at, written atomically
And a "running" record exists from the moment the marker was read until the outcome replaces it
Scenario: Only the helper runs with privilege
Then the app has no code that execs systemctl, writes outside the data directory or reads the units
And the oneshot service and path unit contain no environment secrets
Scenario: Settings, owner, Restart buttons (route /settings)
Given the owner and can_apply true
Then with state "ready" the Restart button (power, primary) is enabled and opens the Install dialog
And with state "idle" (Up to date or Check failed) the Restart button (power, secondary) is enabled and opens the Plain restart dialog
And with state "downloading", "verifying" or "restarting" Restart is disabled or absent as the card draws it
And with can_apply false (Not prepared) or the admin view no Restart is rendered
And the slice 2 disabled Restart in Ready to install is now enabled and has a handler
And the SPA sends {"kind":"update"} from the Install dialog and {"kind":"restart"} from the Plain restart dialog, always
Scenario: Settings, Restart: confirm (Install dialog)
When the owner presses Restart in Ready to install
Then a dialog titled "Restart to finish the update?" shows "RenewCMS will install version 2.3.0-beta and restart. Your site will be unavailable for about 10 seconds. This page reloads on its own when the site is back. Save anything you're editing first."
And its buttons are "Restart later" and "Restart now", the confirm is neutral, not red
And focus moves to the first button, Escape and "Restart later" close it and focus returns to Restart
And no request is sent until "Restart now"
Scenario: Settings, Plain restart: confirm
When the owner presses Restart with no update waiting
Then a dialog titled "Restart the site?" shows "Your site will be unavailable for about 10 seconds. This page reloads on its own when the site is back. Save anything you're editing first."
And its buttons are "Cancel" and "Restart site", with the same focus and Escape behaviour
Scenario: Settings, Restart: request failed
Given the confirm button is pressed and POST /v1/system/update/restart answers 500 or never reaches the server
Then the dialog stays open (install or plain) with the error "Couldn't start the restart. Nothing was changed and your site is still running. Try again in a moment."
And the confirm button is enabled again, no overlay shows and nothing is stored in sessionStorage
Scenario: Settings, this tab remembers that it started the restart
Given POST /v1/system/update/restart answers 202 with started_at "S"
Then sessionStorage holds one entry with the kind and "S" (the server's started_at), and no other storage is written
And the overlay shows
Scenario: Settings, Restarting to install
Given POST /v1/system/update/restart answers 202 for an update
Then a full-page region with role "status" shows, titled "Installing version 2.3.0-beta" with
"Your site is restarting with the new version. This takes about 10 seconds. This page reloads on its own when the site is back." and a moving bar
And it is announced once as "Installing version 2.3.0-beta. Your site is restarting."
And the overlay survives failing requests and the Offline banner state is ignored while it shows
And it polls GET /healthz and GET /v1/system/update every second, tolerating network errors and non-200 answers
Scenario: Settings, Plain restart: restarting
Given POST /v1/system/update/restart answers 202 for a plain restart
Then the overlay shows "Restarting your site" / "This takes about 10 seconds. This page reloads on its own when the site is back."
And it polls the same way
Scenario: Settings, Restarting, taking longer
Given 60 seconds pass with no answer from /healthz or from GET /v1/system/update
Then the overlay shows "Still restarting" / "This is taking longer than usual. Keep this page open. It reloads on its own when the site is back, or you can reload it now." and a "Reload page" button
And the meta reads "Started at 09:51 · 1 minute ago" (clock-sensitive)
And "Reload page" reloads the page, the overlay stays until the site answers, and the polling continues
Scenario: Settings, the overlay ends when the site answers
Given the overlay shows and /healthz answers and GET /v1/system/update answers with a state other than "restarting"
and finished_at later than the stored started_at
Then the page reloads once
And a GET answering "restarting", a GET whose finished_at is null or not later than the stored started_at, a /healthz answer without a GET
answer, and a rejected GET all keep the overlay and do not reload
Scenario: Settings, Update done (the tab that started it)
Given the page reloaded, sessionStorage holds {kind "update", started_at "S"} and GET answers state "succeeded" with finished_at later than "S"
Then the entry is cleared, focus lands on the "Updates" heading (id="updates-h") with the ring shown
And a success toast "Update installed" / "RenewCMS is now on version 2.3.0-beta." is announced
And the Version card shows the new running version and the card reads "You're on version 2.3.0-beta" /
"The update is installed and your site is running again." / "Updated today at 09:52" with a "Read the release notes" link (arrow-up-right)
Scenario: Settings, Update failed, rolled back (the tab that started it)
Given the page reloaded, sessionStorage holds {kind "update", started_at "S"} and GET answers state "failed", error "rolled_back", finished_at later than "S", running "v2.2.0-beta"
Then the entry is cleared and focus lands on "Updates"
And an error toast (stays until dismissed) with icon circle-x "The update didn't install" / "Your site is back on v2.2.0-beta." shows
And the card shows icon triangle-alert (warning) "The update didn't install" /
"RenewCMS put the previous version back, so your site is running as before. Nothing was lost." /
"What to do next: try again in a few minutes. If it fails again, ask whoever manages your server to check the update." and a "Try again" button that sends POST /v1/system/update/download
And error "install" renders the same card and toast
Scenario: Settings, Plain restart: done (the tab that started it)
Given the page reloaded, sessionStorage holds {kind "restart", started_at "S"} and GET answers state "idle" with finished_at later than "S"
Then the entry is cleared, focus lands on "Updates" and a success toast "Site restarted" / "Your site is running again." is announced
And the card is the normal Up to date card
Scenario Outline: A later visit shows the card with no toast and no focus move
Given sessionStorage has no entry, or an entry whose started_at is not earlier than finished_at, and GET answers <result>
Then the card renders for that state, no toast shows and focus does not move to "Updates"
And nothing is written to sessionStorage
Examples:
| result |
| state "succeeded", finished_at set |
| state "failed", error "rolled_back" |
| state "failed", error "install" |
| state "idle", finished_at set (plain restart) |
Scenario: Settings, another owner's tab never takes the toast
Given owner B has /settings open, with no sessionStorage entry, while GET answers "restarting" and later "succeeded"
Then owner B's page shows the overlay while "restarting" and the card afterwards, with no toast and no focus move
And owner A's tab, which holds the entry, still gets the toast and the focus
And an admin sees the admin view and no overlay
Scenario: Settings, a stale sessionStorage entry
Given an entry left behind by a restart that never finished in this tab (the tab was closed and reopened by hand)
When the page loads and GET answers a finished_at that is not later than the entry's started_at, or null
Then no toast shows, focus does not move, the entry stays until a later finished_at consumes it, and a new restart overwrites it
Scenario: Settings, 409 on Restart
Given POST /v1/system/update/restart answers 409
Then the dialog closes, nothing is stored in sessionStorage and the card reloads
And when the reload shows downloading, verifying or restarting an info toast "An update is already running" / "Another owner started it. Progress shows here." shows and the card or overlay switches to that run
And when the reload shows can_apply false the card shows "Not prepared" and no toast
And when the reload shows a different "Ready to install" or "idle" (the kind did not match) the card shows that state and no toast
Scenario: Settings, 400 on Restart
Given POST /v1/system/update/restart answers 400
Then the dialog shows the "Couldn't start the restart" text and nothing is stored in sessionStorage
Scenario: Settings, 403 role changed on Restart
Given POST /v1/system/update/restart answers 403
Then the dialog closes, an error toast "Only the owner can do this" / "Ask the owner of this site to update RenewCMS." shows and the card reloads in the admin view
Scenario: Settings, 401 on Restart
Given POST /v1/system/update/restart answers 401
Then the global handler goes to /login?redirect=/settings&reason=expired and no local copy shows
Scenario: Home banner while restarting
Given state "restarting"
Then Home shows no update banner and does not poll
Scenario: The docs gain a "Browser updates" section
Then docs/deployment.md has "Browser updates" with the one-time command "sudo renewcms enable-browser-updates", what it installs
(two units, update-helper.json), how to undo it ("sudo renewcms disable-browser-updates"), and what is and is not supported
And it lists: Linux with systemd only; not Windows, macOS, Docker or other init systems; the previous binary is kept as <name>.previous
and a database backup in backups/; an update whose new version does not come up within 60 s is rolled back automatically
And it names the files update-restart-request.json, update-result.json, update-helper.json and update-running.json
And the "How to update" link of the Not prepared card points at that section
And the sentence "the site does not update itself" in the "Update checks" section is replaced