1、解除安裝舊版:sudo apt-get remove docker docker-engine docker-ce docker.io

2、更新:sudo apt-get update

3、 sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common

4、新增GPG金鑰curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

5、設定stablesudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

6、更新包sudo apt-get update

7、列出可用版本ceapt-cache madison docker-ce

8、安裝docker-ce docker-cesudo apt-get install -y docker-ce=<VERSION>不加=安裝預設版

9、檢視服務是否啟動systemctl status docker若未啟動執行sudo systemctl start docker

10、執行hello-worldsudo docker run hello-world

安裝tomcat 1、查詢映象 sudo docker search tomcat 2、安裝sudo docker pull tomcat

未完