Three new scripts for VM-level infrastructure management:
- audit-vm-disks.sh: Audit disk cache config on all VMs across hosts
- audit-guest-io.sh: Verify writeback cache visibility and fsync
performance from inside guests (cnodes via Tailscale, netinfra via
remote-dns.sh)
- deploy-tuned-guests.sh: Deploy tuned profiles to VMs via qemu-guest-agent
(template for when guest agents are deployed fleet-wide)
These establish repeatable processes for VM disk/performance auditing
instead of ad-hoc one-off probes.
[#395]
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k8s/install-cp.sh: add --etcd-arg heartbeat-interval=1000 and
election-timeout=5000 to both bootstrap and join commands. Gives etcd 5x
margin to absorb transient fsync stalls on spinning-disk-backed NFS
storage (default 500ms/1500ms too tight for this environment).
proxmox/perf/scripts/audit-vm-disks.sh: new script to audit disk cache
configuration on all VMs across Proxmox hosts. Identifies VMs that would
benefit from cache=writeback (especially etcd/database workloads on
NFS-backed spinning disk).
[#392] [#393]
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mrcharles