安装应用
我们以安装 kubectl 命令为例:
第一步、先进行应用的搜索
# snap search kubectl Name Version Publisher Notes Summary kubectl 1.18.8 canonical? classic Command line client for controlling a Kubernetes cluster. kubernetes-worker 0.0.1 canonical? - A complete Kubernetes worker kafkactl 1.11.0 dwi-di - A command-line interface for interaction with Apache Kafka kubectl-eks 1.10.3 canonical-cloud-snaps classic kubectl controls the Kubernetes cluster manager. kubectl-iexec v1.6.2-next leetserve - plugin to interactively exec to a pod client-keystone-auth v1.14.0+git36.e163280 knobby - Client plugin for kubectl to enable keystone authentication. devoperator 1.5.1 art-hens-teeth classic DevOps tools kube-commander 0.2.1 anatoly-rugalev - Browse your kubernetes clusters in a casual way
第二步、查看软件包信息,获取所有可用版本
# snap info kubectl name: kubectl summary: Command line client for controlling a Kubernetes cluster. publisher: Canonical? store-url: https://snapcraft.io/kubectl contact: https://www.ubuntu.com/kubernetes license: Apache-2.0 description: | kubectl is a command line client for running commands against Kubernetesclusters. For more information about kubectl, including syntax, descriptions of command operations, andcommon examples, see the [overview](https://kubernetes.io/docs/reference/kubectl/overview/). Fordetails about each command, including all the supported flags and subcommands, see the [kubectlreference documentation](https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands/). snap-id: ZgG2URycDgvxSVskfoZxn44uaRMw0iwe channels: latest/stable: 1.18.8 2020-08-27 (1612) 10MB classiclatest/candidate: 1.18.8 2020-08-27 (1612) 10MB classiclatest/beta: 1.18.8 2020-08-27 (1612) 10MB classiclatest/edge: 1.18.8 2020-08-27 (1612) 10MB classic1.19/stable: 1.19.0 2020-08-27 (1623) 10MB classic1.19/candidate: 1.19.0 2020-08-27 (1623) 10MB classic1.19/beta: 1.19.0 2020-08-27 (1623) 10MB classic1.19/edge: 1.19.0 2020-08-27 (1623) 10MB classic1.18/stable: 1.18.8 2020-08-26 (1612) 10MB classic ...
第三步、安装应用(或特定版本)
# snap install kubectl --classic// 如果需要安装特定版本# snap install kubectl --classic --channel=1.18/stable
注意事项,是否使用 --classic 选项与应用程序权限有关,应用的 Snapcraft 主页或者错误信息会提示是否需要使用 --classic 选项。
相关链接
Installing the Snap Store app
参考文献
K4NZ / 使用 snap 安装应用
How to install snap packages behind web proxy on Ubuntu 16.04 - Ask Ubuntu
How to list all available versions of a snap which is not installed? - Ask Ubuntu
ubuntu - Install specific previous version of package using snap? - Unix & Linux Stack Exchange