55 lines
1.1 KiB
Bash
55 lines
1.1 KiB
Bash
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#!/bin/bash
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set -euo pipefail
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usage() {
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cat >&2 <<'EOF'
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Usage:
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backup-restore.sh [snapshot]
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Environment:
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AWS_ACCESS_KEY_ID
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AWS_SECRET_ACCESS_KEY
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RESTIC_REPOSITORY
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RESTIC_PASSWORD
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EOF
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exit 1
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}
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if [ $# -gt 1 ]; then
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usage
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fi
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: "${AWS_ACCESS_KEY_ID:?AWS_ACCESS_KEY_ID must be set}"
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: "${AWS_SECRET_ACCESS_KEY:?AWS_SECRET_ACCESS_KEY must be set}"
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: "${RESTIC_REPOSITORY:?RESTIC_REPOSITORY must be set}"
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: "${RESTIC_PASSWORD:?RESTIC_PASSWORD must be set}"
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snapshot="${1:-latest}"
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restore_path='/data/forgejo'
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clear_directory() {
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local dir=$1
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mkdir -p "$dir"
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find "$dir" -mindepth 1 -maxdepth 1 -exec rm -rf -- {} +
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}
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staging_dir="$(mktemp -d)"
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cleanup() {
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rm -rf "$staging_dir"
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}
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trap cleanup EXIT INT TERM
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echo "Restoring snapshot '$snapshot' from $RESTIC_REPOSITORY into $restore_path ..."
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restic restore "$snapshot" --target "$staging_dir" --include "$restore_path"
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restored_path="$staging_dir$restore_path"
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if [ ! -e "$restored_path" ]; then
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echo "Snapshot '$snapshot' did not contain $restore_path" >&2
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exit 1
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fi
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clear_directory "$restore_path"
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cp -a "$restored_path"/. "$restore_path"/
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echo "Restore completed at $restore_path."
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