Pulse was generating tag colours from a hash of the tag name instead
of using the colours configured in Proxmox. Now polls /cluster/options
once per PVE instance and merges the tag-style colour map into state,
which the frontend uses as the first-priority colour source for tag
badges. Falls back to the existing special-tag and hash-based colours
when Proxmox hasn't set a custom colour for a tag.
Proxmox status.Mem includes page cache as "used" memory, inflating
reported VM usage. The existing fallbacks (balloon meminfo, RRD, linked
host agent) were frequently unavailable, causing most VMs to fall
through to the inflated status-mem source.
Adds a new last-resort fallback that reads /proc/meminfo via the QEMU
guest agent file-read endpoint to get accurate MemAvailable. Results
are cached (60s positive, 5min negative backoff for unsupported VMs).
Also fixes: RRD memavailable fallback missing from traditional polling
path, cache key collisions in multi-PVE setups, FreeMem underflow
guard inconsistency, and integer overflow in kB-to-bytes conversion.
The --disk-exclude agent flag only filtered local metric collection but
had no effect on server-side Proxmox disk health and SSD wearout alerts,
which poll the Proxmox API directly. Users excluding disks (e.g.
--disk-exclude sda) still received alerts for those disks.
Agent now sends its DiskExclude patterns in each report. The server
stores them on the Host model and consults them during Proxmox disk
polling — excluded disks get a synthetic healthy status passed to
CheckDiskHealth so any existing alerts clear immediately.
Also adds FreeBSD pseudo-filesystem types (fdescfs, devfs, linprocfs,
linsysfs) to the virtual FS filter and /var/run/ to special mount
prefixes, fixing false disk-full alerts on FreeBSD for fdescfs mounts.
Backport of v6 commits a87c9950 and 347d7db1.
Part 1 (a87c9950): Wrap the four guest agent c.get() errors with
fmt.Errorf("guest agent ...: %w", err) so isVMSpecificError() correctly
scopes them to the VM rather than the cluster endpoint.
Part 2 (347d7db1): Replace the 20+ pattern blocklist in
executeWithFailover with an allowlist via isEndpointConnectivityError().
Only true TCP/DNS/TLS failures mark an endpoint unhealthy. Any HTTP
response from Proxmox — including 500 — proves the node is reachable
and returns the error without affecting endpoint health.
#1266: ageFormatted already includes 'ago' from formatTimeDiff(); remove the
duplicate literal suffix from the backup age tooltip in GuestRow.tsx.
#1143: Remove /var/lib/docker from specialMountPrefixes so real block devices
mounted there are visible in disk usage. Container overlay layers (fstype=overlay)
are already filtered by virtualFSTypes and are unaffected.
(cherry picked from commit 5acef3405d4288f627788675123e266d661c2fe3)
Linux VM page cache (#1270): QEMU VM memory now falls back to Proxmox
RRD's memavailable metric (which excludes reclaimable page cache) when
the qemu-guest-agent doesn't provide MemInfo.Available. Previously the
fallback was detailedStatus.Mem (total - MemFree), inflating usage to
80%+ on VMs with normal Linux page cache. Mirrors the existing LXC
rrd-memavailable path.
FreeBSD ZFS ARC (#1264, #1051): The host agent now reads
kstat.zfs.misc.arcstats.size via SysctlRaw on FreeBSD and subtracts
the ARC size from reported memory usage. ZFS ARC is reclaimable under
memory pressure (like Linux SReclaimable) but gopsutil counts it as
wired/non-reclaimable, causing false 90%+ memory alerts on TrueNAS
and FreeBSD hosts. Build-tagged so it compiles cleanly on all platforms.
Fixes#1270Fixes#1264Fixes#1051
(cherry picked from commit 94502f83ff9ffc6da28aaadc946a2f7d8b4e9bac)
