The /dev/ram0 + XFS + format-ramdisk.service approach was unnecessary
complexity from a migration confusion — there was no actual tmpfs bug
with io_uring. tmpfs is simpler (no format-on-boot), resizable on the
fly, and what every other Solana operator uses.
Changes:
- prepare-agave: remove format-ramdisk.service and ramdisk-accounts.service,
use tmpfs fstab entry with size=1024G (was 600G /dev/ram0, too small)
- recover: remove ramdisk_device var (no longer needed)
- redeploy: wipe accounts by rm -rf instead of umount+mkfs
- snapshot-download.py: extract download_best_snapshot() public API for
use by the new container entrypoint.py (in agave-stack)
- CLAUDE.md: update ramdisk docs, fix /srv/solana → /srv/kind/solana paths
- health-check: fix ramdisk path references
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Normal playbooks should never hardcode hostnames — that's an inventory
concern. Changed all playbooks to hosts:all. The one exception is
ashburn-relay-check.yml which legitimately spans both inventories
(switches + biscayne) and uses explicit hostnames.
Also adds:
- ashburn-relay-check.yml: full-path relay diagnostics (switches + host)
- biscayne-start.yml: start kind container and scale validator to 1
- ashburn-relay-setup.sh.j2: boot persistence script for relay state
- Direct device mounts replacing rbind (ZFS shared propagation fix)
- systemd service replacing broken if-up.d/netfilter-persistent
- PV mount path corrections (/mnt/validator-* not /mnt/solana/*)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
A. F. Dudley