#Docker Install

• 安装下载相关套件
  • sudo apt-get update
  • sudo apt-get install
    apt-transport-https
    ca-certificates
    curl
    gnupg-agent
    software-properties-common
• 加入Docker GPG key
  • curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add –
• 加入Docker资料库
  • sudo add-apt-repository
    "deb [arch=amd64] https://download.docker.com/linux/ubuntu
    $(lsb_release -cs)
    stable“
• 安装Docker Engine
  • sudo apt-get update
  • sudo apt-get install docker-ce docker-ce-cli containerd.io
• 测试Docker安装是否成功
  • sudo docker run hello-world
• 安装特定版本Docker Engine
  • apt-cache madison docker-ce (列出版本资讯)
  • sudo apt-get install docker-ce=<VERSION_STRING> docker-ce-cli=<VERSION_STRING> containerd.io

#Docker Run [Option] 用法

• Sudo docker run [Option] [Image] [Command] [Arg](Ex : Sudo docker run --rm -d alpine sleep 10)(Ex : Sudo docker run -it alpine /bin/sh)
• Option
  • -d 将Container跑在背景 (不会卡死terminal)
  • -e 设置环境参数
  • -i 保持STDIN开启
  • -t 开启pseudo-TTY (通常-it连用)
  • --name 给Container一个别名
  • --p 将Container中的Port对应到本机的Port
  • --rm 在Container停止後自动删除
  • -v 将Container内的资料夹与本机的资料夹做映射!

#Docker 基本指令

• sudo docker ps –a : 列出目前产生的Container
• sudo docker images : 列出目前有的Images档案
• sudo docker rm [Container ID] : 删除特定Container!
• sudo docker rmi [Images ID] : 删除特定映像档
• sudo docker run [Images] : 建立Container
• sudo docker exec [Container ID] : 传送指令给正在运行的Container
• sudo docker inspect [Container ID] : 列出容易的相关设定参数
• Sudo docker start [Container ID] : 重新启动Container
• Sudo docker stop [Container ID] : 停止Container运行

#Docker Container特性

#自制Docker Images

• Dockerfile内容如下

FROM alpine:3.10.1

RUN apk update && apk upgrade && apk add --no-cache nano sudo wget curl \
tree elinks bash shadow procps util-linux coreutils binutils findutils grep && \
wget https://busybox.net/downloads/binaries/1.28.1-defconfig-multiarch/busybox-x86_64 && \
chmod +x busybox-x86_64 && mv busybox-x86_64 bin/busybox1.28

CMD ["/bin/bash"]

#自制可由SSH连入的Docker Container

• Dockerfile内容如下

FROM alpine.base
RUN apk update && apk upgrade && apk add --no-cache openssh openrc && rc-update add sshd && \  
    # 设定 OpenSSH
    mkdir /run/openrc && touch /run/openrc/softlevel && rc-status &>/dev/null && \
    # 建立 sshup
    echo '#!/bin/bash' > /usr/bin/sshup && echo -e 'Welcome to Alpine 3.10.1\n' > /etc/motd && \ 
    echo '/etc/init.d/sshd start &>/dev/null && tail -f /dev/null' >> /usr/bin/sshup && chmod +x /usr/bin/sshup && \
    # 建立管理者帐号
adduser -s /bin/bash -h /home/user -G wheel -D user && echo '%wheel ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers && \
    echo -e "userd\nuser\n" | passwd user &>/dev/null && [ "$?" == "0" ] && echo “Add user ok!"

ENTRYPOINT ["/usr/bin/sshup"]

#Docker 桥接网路架构图

#Docker 建立新的桥接器

#Docker中共用资料夹

#Docker建立资料库测试

#在Ubuntu运行C#

• 注册Microsoft Key and Reposity
  • wget https://packages.microsoft.com/config/ubuntu/18.04/packages-microsoft-prod.deb -O - - packages-microsoft-prod.deb
  • sudo dpkg -i packages-microsoft-prod.deb
• 下载安装dotnet-sdk
  • sudo add-apt-repository universe
  • sudo apt-get update
  • sudo apt-get install apt-transport-https
  • sudo apt-get update
  • sudo apt-get install dotnet-sdk-3.1
• 测试
  • 查询可建立专案类型 : dotnet new --list
  • 建立新专案 : dotnet new [专案类型] –o [ProjectName](EX : dotnet new console –o test )
  • 运行专案 : dotnet run [.csproj File](EX : dotnet run ./test.csproj )

#在将C# Code包装为Docker Image

• Dockerfile内容如下

# https://hub.docker.com/_/microsoft-dotnet-core
FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS build
WORKDIR /source

# copy csproj and restore as distinct layers
COPY *.csproj .
RUN dotnet restore

# copy and publish app and libraries
COPY . .
RUN dotnet publish -c release -o /app --no-restore

# final stage/image
FROM mcr.microsoft.com/dotnet/core/runtime:3.1
WORKDIR /app
COPY --from=build /app .
ENTRYPOINT ["dotnet", "dotnet.dll"]