Claude Agent
3caa4ab873
A `/slowdisk` directory exists on hosts even when it is just a folder on the root disk (no dedicated extra disk) — offloading there gives no benefit. Source the host .env and require SLOWDISK to be set (operator sets it only on hosts with a real extra disk mounted at /slowdisk) before activating the static-file -> /slowdisk symlink offload. Unset = normal extract everywhere. Target path stays /slowdisk (the fixed in-container mount). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
119 lines
4.9 KiB
Bash
Executable File
119 lines
4.9 KiB
Bash
Executable File
#!/bin/bash
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dir="$(dirname "$0")"
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source "$dir/volume-utils.sh"
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# Host config: SLOWDISK gates the static-file offload (see prep_static_offload). It must be
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# set ONLY on hosts that have a real dedicated extra disk mounted at /slowdisk; on hosts
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# where /slowdisk is just a folder on the root disk, offloading gives no benefit.
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[ -f "$dir/.env" ] && source "$dir/.env"
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remote_source="$2"
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if [[ -n "$remote_source" ]] && is_local_backup_url "$remote_source"; then
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echo "Source URL points to this server, using local /backup instead of $remote_source"
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remote_source=""
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fi
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# Path to the backup directory
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backup_dir="/backup"
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# Path to the volume directory
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volume_dir="/var/lib/docker/volumes"
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if [ ! -d "$volume_dir" ]; then
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echo "Error: /var/lib/docker/volumes directory does not exist"
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exit 1
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fi
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# Pre-create static-file -> /slowdisk symlinks from a backup's ".txt" manifest, so the
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# immutable "ancient"/freezer dirs land on the (SSD) /slowdisk during extraction while the
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# hot/dynamic state stays on the primary disk. tar then extracts THROUGH the symlinks via
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# --keep-directory-symlink (it keeps the dir-symlinks instead of clobbering them).
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# Target naming matches delete-volumes.sh / delete_slowdisk_targets_for_key cleanup.
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# GATED on the SLOWDISK env var from .env: only hosts with a real dedicated extra disk set
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# it. Safe fallbacks (just extract normally): SLOWDISK unset, /slowdisk missing, no manifest,
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# or no static paths. (/slowdisk is the fixed in-container mount, so the target path is fixed.)
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prep_static_offload() {
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local key=$1 meta=$2 data_dir=$3 rel target
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[ -n "${SLOWDISK:-}" ] || { echo " SLOWDISK not set in .env (no dedicated extra disk) — no static offload"; return 0; }
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[ -d /slowdisk ] || { echo " /slowdisk absent — no static offload"; return 0; }
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[ -f "$meta" ] || { echo " no manifest ($meta) — no static offload"; return 0; }
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# manifest data lines (after the 3-line header) are "<size> <relpath>"
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while IFS= read -r rel; do
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[ -z "$rel" ] && continue
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rel="${rel#/}"
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case "$rel" in *..*) echo " skip unsafe static path '$rel'"; continue;; esac
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target="/slowdisk/rpc_${key}__data_${rel//\//_}"
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echo " offload static '$rel' -> $target"
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mkdir -p "$target" "$data_dir/$(dirname "$rel")" || { echo " WARN: mkdir failed for '$rel', skipping"; continue; }
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ln -sfn "$target" "$data_dir/$rel"
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done < <(awk 'NR>3 && NF>=2 {print $NF}' "$meta")
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}
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# Read the JSON input and extract the list of keys
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keys=$(get_persistent_volume_keys "$dir/$1.yml" | grep -E '^[0-9a-z]')
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echo "$keys"
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while IFS= read -r key; do
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[ -z "$key" ] && continue
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data_dir="$volume_dir/rpc_$key/_data"
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declare newest_file
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if [[ -n "$remote_source" ]]; then
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newest_file=$($dir/list-backups.sh "$remote_source" | grep "rpc_$key-20" | sort | tail -n 1)
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else
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newest_file=$(ls -1 "$backup_dir"/"rpc_$key"-[0-9]*G.tar.zst 2>/dev/null | sort | tail -n 1)
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fi
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if [ -z "$newest_file" ]; then
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echo "Error: No backup found for volume 'rpc_$key'"
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exit 1
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fi
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meta_file="${newest_file%.tar.zst}.txt"
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echo "=== restoring rpc_$key <- $newest_file ==="
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# 1) wipe live data AND any /slowdisk static targets for this key (no leak on re-restore)
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delete_slowdisk_targets_for_key "$key"
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[ -d "$data_dir" ] && rm -rf "$data_dir"/*
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mkdir -p "$data_dir"
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# 2) obtain the manifest (fetch the sidecar .txt for remote restores) and, unless this is
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# a reth node (reth dropped whole-dir static-file symlinks), pre-create the offload.
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local_meta="$meta_file"
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if [[ -n "$remote_source" ]]; then
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local_meta="$backup_dir/$(basename "$meta_file")"
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[ -d "$backup_dir" ] || local_meta="/tmp/$(basename "$meta_file")"
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if [ ! -f "$local_meta" ]; then
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curl --ipv4 -fsS "${remote_source}${meta_file}" -o "$local_meta" 2>/dev/null || local_meta=""
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fi
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fi
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if [[ "$1" == *reth* ]]; then
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echo " reth node: static-file symlink offload disabled (reth broke whole-dir symlinks)"
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elif [ -n "$local_meta" ]; then
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prep_static_offload "$key" "$local_meta" "$data_dir"
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fi
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# 3) extract THROUGH the pre-created symlinks (keep them, don't clobber)
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if [[ -n "$remote_source" ]]; then
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if [ ! -d "$backup_dir" ]; then
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echo "No /backup cache: streaming + extracting $newest_file directly"
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curl --ipv4 -# "${remote_source}${newest_file}" | zstd -d | tar -xf - --keep-directory-symlink -C /
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if [ $? -ne 0 ]; then
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echo "Error processing $newest_file"
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exit 1
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fi
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else
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if [ ! -e "$backup_dir/$(basename "$newest_file")" ]; then
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aria2c -c -Z -x8 -j8 -s8 -d "$backup_dir" "${remote_source}${newest_file}"
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fi
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tar -I zstd -xf "$backup_dir/$(basename "$newest_file")" --keep-directory-symlink -C /
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fi
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else
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tar -I zstd -xf "$newest_file" --keep-directory-symlink -C /
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fi
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echo "Backup '$newest_file' restored"
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done <<< "$keys"
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"$dir/delete-node-keys.sh" "$1"
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echo "node $1 restored."
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