81 lines
2.2 KiB
Bash
81 lines
2.2 KiB
Bash
#!/bin/bash
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# Auto-elevate if not root
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if [[ "$EUID" -ne 0 ]]; then
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echo "This script needs root to access Docker volumes. Re-running with sudo..."
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exec sudo "$0" "$@"
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fi
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set -euo pipefail
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WORKDIR="$(pwd)"
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COMPOSE_FILE="${WORKDIR}/docker-compose.yml"
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if [[ ! -f "$COMPOSE_FILE" ]]; then
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echo "❌ No docker-compose.yml found in $WORKDIR"
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exit 1
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fi
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# Original user info (for restoring file ownership)
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ORIGINAL_USER="${SUDO_USER:-$USER}"
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ORIGINAL_UID=$(id -u "$ORIGINAL_USER")
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ORIGINAL_GID=$(id -g "$ORIGINAL_USER")
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# Determine the project name (same as docker-compose uses)
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PROJECT_NAME=$(basename "$WORKDIR")
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echo "📦 Working in (${PROJECT_NAME})"
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# Get all services using yq
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SERVICE_NAMES=$(yq e '.services | keys | .[]' "$COMPOSE_FILE")
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for SERVICE in $SERVICE_NAMES; do
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echo "🔍 Found service (${SERVICE})"
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# Get the volumes for the service
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VOLUMES=$(yq e ".services.${SERVICE}.volumes[]" "$COMPOSE_FILE" 2>/dev/null || true)
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while IFS= read -r VOLUME; do
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# Clean up quotes and whitespace
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VOLUME=$(echo "$VOLUME" | sed 's/^"//;s/"$//;s/^[[:space:]]*//;s/[[:space:]]*$//')
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# Skip bind mounts
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if [[ "$VOLUME" == ./* || "$VOLUME" == /* ]]; then
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continue
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fi
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# Get the source volume name (before colon)
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SOURCE=$(echo "$VOLUME" | cut -d':' -f1)
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echo "📁 Found named volume (${SOURCE})"
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# Prompt the user
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read -rp "→ Would you like to tar.gz and save to this location as ${SOURCE}.tar.gz? (Y/n) " REPLY
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REPLY=${REPLY:-Y}
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if [[ "$REPLY" =~ ^[Yy]$ ]]; then
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VOLUME_PATH="/var/lib/docker/volumes/${PROJECT_NAME}_${SOURCE}/_data"
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if [[ ! -d "$VOLUME_PATH" ]]; then
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echo "⚠️ Volume path $VOLUME_PATH not found! Skipping..."
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continue
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fi
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OUTPUT_FILE="${WORKDIR}/${SOURCE}.tar.gz"
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echo "📦 Backing up $VOLUME_PATH to $OUTPUT_FILE"
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# Create tar as original user
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sudo -u "$ORIGINAL_USER" tar -czf "$OUTPUT_FILE" -C "$VOLUME_PATH" .
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# Ensure file is owned properly
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chown "$ORIGINAL_UID:$ORIGINAL_GID" "$OUTPUT_FILE"
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echo "✅ Backup complete: $OUTPUT_FILE"
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else
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echo "⏭️ Skipping ${SOURCE}"
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fi
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done <<< "$VOLUMES"
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done
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