apt update

環境 Raspbeey Pi 3 model B+ エラー内容 pi@raspberrypi:~ $ echo "deb http://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list deb http://apt.kubernetes.io/ kubernetes-xenial main pi@raspberrypi:~ $ sudo apt update Err:3 https://packages.cloud.google.com/apt kubernetes-xenial InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6A030B21BA07F4FB Reading package lists... Done W: GPG error: https://packages.cloud.google.com/apt kubernetes-xenial InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6A030B21BA07F4FB E: The repository 'http://apt.kubernetes.io kubernetes-xenial InRelease' is not signed. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. 原因 鍵登録をしていなかった pi@raspberrypi:~ $ curl -fsSL https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -

apt update

kubenetesを導入する際のapt updateのエラー

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