sudo apt-get remove docker docker-engine docker.io containerd runc

Reading package lists... Done
Building dependency tree    
Reading state information... Done
Package 'docker-engine' is not installed, so not removed
Package 'docker' is not installed, so not removed
Package 'containerd' is not installed, so not removed
Package 'docker.io' is not installed, so not removed
Package 'runc' is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.

sudo apt-get update

udo apt-get install \
  apt-transport-https \
  ca-certificates \
  curl \
  gnupg-agent \
  software-properties-common

# curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

# apt-key fingerprint 0EBFCD88

pub  rsa4096 2017-02-22 [SCEA]
   9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88
uid      [ unknown] Docker Release (CE deb) <docker@docker.com>
sub  rsa4096 2017-02-22 [S]

$ sudo add-apt-repository \
  "deb [arch=amd64] https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu/ \
  $(lsb_release -cs) \
  stable"

 $ sudo apt-get update

 $ sudo apt-get install docker-ce docker-ce-cli containerd.io

$ docker pull hello-world
$ docker run hello-world
#出現(xiàn)以下信息，表示docker安裝成功，已經(jīng)可以正常運行
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:

  1. The Docker client contacted the Docker daemon.
  2. The Docker daemon pulled the "hello-world" image from the Docker Hub.(amd64)
  3. The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading.
  4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal.
 To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash
 Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/
 For more examples and ideas, visit:
 https://docs.docker.com/get-started/

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://XXX你的id.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

#首先確定mysql是否能被搜素到，這步可以跳過，也可以在dockerhub.com中搜索
docker search mysql

#拉取鏡像
docker pull mysql  #這里默認是拉取的最新版本，如果需要特定版本可以在鏡像后面添加tag，具體版本信息可以在dockerhub.com查詢

#特定版本拉取,比如要拉取8.0.22(版本號一定要是官方放出的版本號，否則是查找不到的)
docker pull mysql:8.0.22

#這時可以查看下拉取的鏡像
docker images

#運行鏡像
docker run -d -p 3306:3306 -v /crownBlog/datadir:/var/lib/mysql --name crownBlog-mysql -e MYSQL_ROOT_PASSWORD=123456  mysql

# -d 表示后臺運行，并返回容器id
# -p 3006:3306 表示端口映射，具體為 -p 主機端口：容器端口
# --name 給容器取個名字
# -e MYSQL_ROOT_PASSWORD=password 給mysql root管理員設置密碼
# -v /crownBlog/datadir:/var/lib/mysql 添加數(shù)據(jù)卷
/crownBlog/datadir是主機的數(shù)據(jù)庫路徑
/var/lib/mysql是容器中的數(shù)據(jù)庫路徑，這一步非常重要

#進入容器配置
docker exec -it crownBlog-mysql bash

root@ed9345077e02:/# mysql -u root -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.22 MySQL Community Server - GPL
Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its affiliates.
Other names may be trademarks of their respective owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

# 之后就和一般情況下mysql的操作一樣了。

docker cp crownBlog.sql crownBlog-mysql:/home 
(docker cp 第一個參數(shù)指定本地文件或者文件夾，第二個參數(shù)指定容器及容器內的目標文件夾)

FROM golang:latest
RUN go env -w GO111MODULE=on
RUN go env -w GOPROXY=https://goproxy.cn,https://goproxy.io,direct

WORKDIR $GOPATH/src/crownBlog
COPY . $GOPATH/src/crownBlog

RUN go build .

EXPOSE 8085

ENTRYPOINT ["./blog"]   

$ docker build -t crownblog .
$ docker run -d -p 8085:8085--name crownblog crownblog

 
#這樣訪問服務器IP:8085就可以訪問網(wǎng)站了