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Update backup_named_volumes.sh

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Ryan Hamilton
2025-07-18 14:15:57 +00:00
parent a165b304ed
commit 5840e5509a
1 changed files with 22 additions and 57 deletions
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79
backup_named_volumes.sh
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@@ -2,72 +2,37 @@
set -euo pipefail set -euo pipefail
WORKDIR="${1:-$(pwd)}" PROJECT_NAME=$(basename "$(pwd)")
COMPOSE_FILE="${WORKDIR}/docker-compose.yml" echo "📦 Docker Compose project: $PROJECT_NAME"
echo "DEBUG: Looking for Compose file at $COMPOSE_FILE" # Get all named volumes for this project
ls -l "$COMPOSE_FILE" || echo "⚠️ File not found!" VOLUMES=$(docker volume ls --format '{{.Name}}' | grep "^${PROJECT_NAME}_")
if [[ -z "$VOLUMES" ]]; then
if [[ ! -f "$COMPOSE_FILE" ]]; then echo "❌ No volumes found for project '$PROJECT_NAME'"
echo "❌ No docker-compose.yml found in $WORKDIR"
exit 1 exit 1
fi fi
# Determine project name (Docker Compose style) for FULL_VOL in $VOLUMES; do
PROJECT_NAME=$(basename "$WORKDIR") SHORT_VOL="${FULL_VOL#${PROJECT_NAME}_}"
echo "📦 Working in (${PROJECT_NAME})"
# Get original user details (in case script is run via sudo -E or similar) VOLUME_PATH="/var/lib/docker/volumes/${FULL_VOL}/_data"
ORIGINAL_USER="${SUDO_USER:-$USER}" OUTPUT_FILE="${SHORT_VOL}.tar.gz"
ORIGINAL_UID=$(id -u "$ORIGINAL_USER")
ORIGINAL_GID=$(id -g "$ORIGINAL_USER")
# Get services echo "📁 Found volume: $SHORT_VOL"
SERVICE_NAMES=$(sudo yq e '.services | keys | .[]' "$COMPOSE_FILE") read -rp "→ Backup this volume to ${OUTPUT_FILE}? (Y/n) " REPLY
REPLY=${REPLY:-Y}
for SERVICE in $SERVICE_NAMES; do if [[ "$REPLY" =~ ^[Yy]$ ]]; then
echo "🔍 Found service (${SERVICE})" if [[ ! -d "$VOLUME_PATH" ]]; then
echo "⚠️ Volume path not found: $VOLUME_PATH"
# Get service volumes
VOLUMES=$(sudo yq e ".services.${SERVICE}.volumes[]" "$COMPOSE_FILE" 2>/dev/null || true)
while IFS= read -r VOLUME; do
# Clean up quotes/whitespace
VOLUME=$(echo "$VOLUME" | sed 's/^"//;s/"$//;s/^[[:space:]]*//;s/[[:space:]]*$//')
# Skip bind mounts
if [[ "$VOLUME" == ./* || "$VOLUME" == /* ]]; then
continue continue
fi fi
SOURCE=$(echo "$VOLUME" | cut -d':' -f1) echo "📦 Backing up $VOLUME_PATH → $OUTPUT_FILE"
echo "📁 Found named volume (${SOURCE})" sudo tar -czf "$OUTPUT_FILE" -C "$VOLUME_PATH" .
echo "✅ Done."
read -rp "→ Tar.gz and save as ${SOURCE}.tar.gz? (Y/n) " REPLY else
REPLY=${REPLY:-Y} echo "⏭️ Skipped $SHORT_VOL"
fi
if [[ "$REPLY" =~ ^[Yy]$ ]]; then
VOLUME_PATH="/var/lib/docker/volumes/${PROJECT_NAME}_${SOURCE}/_data"
OUTPUT_FILE="${WORKDIR}/${SOURCE}.tar.gz"
if ! sudo test -d "$VOLUME_PATH"; then
echo "⚠️ Volume path not found: $VOLUME_PATH"
continue
fi
echo "📦 Backing up $VOLUME_PATH → $OUTPUT_FILE"
# Use sudo to read, but write file as your user
sudo tar -czf "$OUTPUT_FILE" -C "$VOLUME_PATH" .
# Fix ownership in case sudo did anything funny
chown "$ORIGINAL_UID:$ORIGINAL_GID" "$OUTPUT_FILE"
echo "✅ Backup done: $OUTPUT_FILE"
else
echo "⏭️ Skipping ${SOURCE}"
fi
done <<< "$VOLUMES"
done done