Replace href navigation with fetch() so the server response is captured
and displayed in a slide-up toast at the bottom of the page. Delete also
removes the host card from the DOM on success without a page reload.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Host Overview (plugins.html): show Update and Delete buttons in the
host-right zone when the logged-in user is the host owner (or admin /
unauthenticated mode). Buttons link to /u?h=<host> and /d?h=<host>
with stopPropagation so they don't toggle the accordion; Delete prompts
for confirmation first.
ThresholdChecker.purge_stale_alerts(): removes alert states whose
metric_path has no matching threshold in the current config. Called
after startup pickle restore and after every SIGHUP config reload so
alerts orphaned by upgrades or config changes do not persist
indefinitely.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Override the global style.css body height/overflow that locks all pages
to the viewport height (a remnant of the old drawer-menu layout).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- ZFS monitor plugin (zfs_monitor) added to plugin list and features
- nagios_runner: async execution, stderr capture, signal handling, path validation
- Threshold alerting: de-escalation suppression, short-duration suppression, ping_monitor thresholds
- Per-host watch flag and role-filtered dashboards
- HTTP API & Web UI: hostname links in Live View, Host Overview with ZFS renderer, alert pie chart in nav bar, Settings threshold viewer
- hbc connection retry: indefinite retry for IPv4; IPv6 dropped after 3 early startup failures
- hbc daemon mode: logs routed to syslog after daemonizing
- hbc_mini: noted zfs_monitor and IPv6 early-fail protection not available
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
IPv4 connections are retried forever in heartbeat_sender if open() fails,
so a temporary network outage does not terminate the sender.
IPv6 connections that have never opened successfully are dropped after
IPV6_EARLY_FAIL_LIMIT (3) consecutive failures so that a network without
IPv6 support does not keep a dead sender running.
At startup all resolved connections are added to the list regardless of
whether the initial open() succeeds; the heartbeat_sender loop handles
the first real connection attempt.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
After daemonize() redirects stderr to /dev/null, the existing StreamHandler
writes to /dev/null. logging.basicConfig() is a no-op when handlers are
already configured, so log messages are silently lost.
Replace the daemon block to:
1. Call daemonize() first
2. Explicitly remove existing handlers (pointing to /dev/null)
3. Add SysLogHandler pointing to /dev/log with fallback to UDP localhost:514
4. Log startup message to the new syslog handler
Removes redundant syslog.openlog() call which is no longer needed.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
When NagiosRunnerPlugin has no commands configured, set skip_reason before
returning False from initialize(). This allows PluginLoader to log INFO
(not WARNING) when the plugin is skipped.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
CLIENT_DEFAULTS seeds "plugins": {} so raw_config.get("plugins", raw_config)
always returned the empty subdict instead of falling back to the full config.
Plugins configured at top-level (e.g. nagios_runner: ...) were therefore
never found, resulting in "No Nagios commands configured".
Now checks the plugins subdict first, then top-level keys, so both
config layouts work correctly.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Threshold alerts (plugin metrics, RTT) were firing immediately on the
first breach. Now every state transition to WARNING/CRITICAL starts a
grace-period timer (grace_seconds from the 'grace' config key). The
notification is deferred until the next heartbeat after grace_seconds
have elapsed. If the metric recovers within the grace window, both the
alert and the recovery are suppressed — no spurious pages for transient
spikes.
Two helper methods added to ThresholdChecker:
- _apply_grace: handles the state-change path (defer or suppress)
- _check_pending_or_renotify: handles the stable-alert path (fire
deferred notification once grace expires, or fall through to reminders)
The overdue case is unchanged — on_overdue already fires only after
interval+grace seconds of silence, which is equivalent behaviour.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
threshold.py was emitting level="RECOVERED" for metric recoveries, which
failed the is_recover check in send_notification (which only matched "RECOVER"),
bypassing _alerted_channels routing and the min_level bypass added in the
previous commit. Changed to "RECOVER" so all recovery paths are consistent.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- AlertState.update() now resets last_notification when the alert level
changes, so a WARNING→CRITICAL escalation restarts the reminder interval
rather than inheriting a nearly-expired timer.
- _dispatch_to_channel() bypasses min_level for RECOVER, so recovery
notifications are delivered even after a server restart when
_alerted_channels is empty and the fallback dispatch path is used.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
andreasandClaude Sonnet 4.6