Rebuild container from Dockerfile
# ① イメージ再ビルド
docker build -t service-A:latest .Import and reporduce pod
# ② MicroK8sに再import
docker save service-A:latest -o service-A.tar
microk8s ctr images import service-A.tar
# ③ Pod再作成（重要）
microk8s kubectl rollout restart deployment/service-A -n service-A-namespace