GKEのバージョン 1.16.13-gke.1 Node Container-Optimized OS from Google コンテナのOS OSは下記を使うのでちょっと特殊 https://console.cloud.google.com/gcr/images/gcp-runtimes/GLOBAL/ubuntu_18_0_4?gcrImageListsize=30 # cat /etc/os-release NAME="Ubuntu" VERSION="18.04.4 LTS (Bionic Beaver)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 18.04.4 LTS" VERSION_ID="18.04" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.u