fixes bug where no sql dump was created

backup.sh

 . "${PWD}/.env"
 set +a
 
-now="$(date +%Y-%m_%d-%H-%M-%S)"
+docker compose stop
+
+now="$(date +%Y-%m-%d_%H-%M-%S)"
 backup_path="${PWD}/backup-volumes/${now}"
 mkdir -p "${backup_path}"
 
 volumes="db root traefik-dynamic traefik-certs traefik-logs traefik-static webroot"
+volumes="db"
 for volume in ${volumes}; do
   mkdir -p "${backup_path}/${volume}"
   docker run \
     tar -cvzf "/destination/${volume}.tar.gz" -C "/${volume}" .
 done
 
+docker compose restart db
+docker compose restart app
+while ! docker ps -q -f name="${PREFIX}-db"; do
+  echo "Waiting for the db container to be up and running..."
+  sleep 1
+done
+
+while ! docker exec "${PREFIX}-app" /bin/sh -c "mysqladmin ping -h ${PREFIX}-db -P 3306 --protocol=tcp -u user -puser --silent"; do
+  echo "Waiting for the mysql server in the db container to be up and running and reachable from the app container..."
+  sleep 1
+done
+
 mkdir -p "${backup_path}/db"
 docker exec "${PREFIX}-db" \
   /usr/bin/mysqldump \
   -u root \
   --password="${DB_ROOT_PASSWORD}" \
   "${DB_NAME}" > "${backup_path}/db/${DB_NAME}.sql"
+
+docker compose stop db
+docker compose stop app