67 lines
2.5 KiB
Bash
67 lines
2.5 KiB
Bash
#!/usr/bin/env bash
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set -euo pipefail
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[ -r "./env-vol_prepare" ] && . ./env-vol_prepare
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VOL_NAME="${VOL_NAME:?ERROR: VOL_NAME must be set (Hetzner volume name)}"
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VOL_MOUNT_PATH="${VOL_MOUNT_PATH:?ERROR: VOL_MOUNT_PATH must be set}"
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VOL_FS_TYPE="${VOL_FS_TYPE:-ext4}"
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VOL_LABEL_PREFIX="${VOL_LABEL_PREFIX:-scsi-0HC_Volume_}"
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VOL_FSTAB_OPTIONS="${VOL_FSTAB_OPTIONS:-defaults,nofail,discard 0 0}"
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DEVICE="/dev/disk/by-id/${VOL_LABEL_PREFIX}${VOL_NAME}"
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# Hetzner may expose volumes by numeric ID rather than name.
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# When the name-based path is absent, find the HC volume device by scanning.
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if [ ! -e "${DEVICE}" ]; then
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HC_DEVICE=$(ls /dev/disk/by-id/ 2>/dev/null \
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| grep "^scsi-0HC_Volume_[0-9]" \
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| grep -v "\-part" \
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| head -1)
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if [ -n "${HC_DEVICE}" ]; then
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DEVICE="/dev/disk/by-id/${HC_DEVICE}"
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echo "=== vol-prepare: name-based path not found, resolved device: ${DEVICE} ==="
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fi
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fi
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echo "=== vol-prepare: volume=${VOL_NAME}, device=${DEVICE}, mount=${VOL_MOUNT_PATH} ==="
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if [ ! -e "${DEVICE}" ]; then
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echo "ERROR: device ${DEVICE} not found." >&2
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echo " Hetzner volume '${VOL_NAME}' must be attached to this server before this taskserv runs." >&2
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echo " Available block devices by-id:" >&2
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ls /dev/disk/by-id/ 2>/dev/null | grep -i hc || echo " (none found)" >&2
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exit 1
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fi
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# Format only if the device has no existing filesystem
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EXISTING_FS="$(blkid -o value -s TYPE "${DEVICE}" 2>/dev/null || echo "")"
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if [ -z "${EXISTING_FS}" ]; then
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echo "=== vol-prepare: no filesystem detected — formatting as ${VOL_FS_TYPE} ==="
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mkfs."${VOL_FS_TYPE}" -F "${DEVICE}"
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echo "=== vol-prepare: formatted ${DEVICE} as ${VOL_FS_TYPE} ==="
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else
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echo "=== vol-prepare: existing filesystem (${EXISTING_FS}) found — skipping format ==="
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fi
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# Create mount point
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mkdir -p "${VOL_MOUNT_PATH}"
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# Mount if not already mounted
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if ! mountpoint -q "${VOL_MOUNT_PATH}"; then
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echo "=== vol-prepare: mounting ${DEVICE} → ${VOL_MOUNT_PATH} ==="
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mount "${DEVICE}" "${VOL_MOUNT_PATH}"
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else
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echo "=== vol-prepare: ${VOL_MOUNT_PATH} already mounted — skipping mount ==="
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fi
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# Add to /etc/fstab for persistence across reboots (idempotent)
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FSTAB_ENTRY="${DEVICE} ${VOL_MOUNT_PATH} ${VOL_FS_TYPE} ${VOL_FSTAB_OPTIONS}"
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if ! grep -qF "${DEVICE}" /etc/fstab; then
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echo "=== vol-prepare: adding fstab entry ==="
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echo "${FSTAB_ENTRY}" >> /etc/fstab
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else
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echo "=== vol-prepare: fstab entry already present — skipping ==="
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fi
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echo "=== vol-prepare: ready (device=${DEVICE}, mount=${VOL_MOUNT_PATH}, fs=${VOL_FS_TYPE}) ==="
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