Docker

1. install $ sudo apt-get update $ sudo apt-get install docker-ce docker-ce-cli containerd.io 2. test $ sudo docker run hello-world $ service docker status $ docker version Ref: Get Docker Engine - Community for Ubuntu »

1. 建立基本檔案 create Dockerfile, docker-compose.yml, Gemfile, Gemfile.lock, entrypoint.sh 填入 ### Dockerfile FROM ruby:2.5 RUN apt-get update -qq && apt-get install -y nodejs postgresql-client RUN mkdir /myapp WORKDIR /myapp COPY Gemfile /myapp/Gemfile »

到 docker hub 下載 .dmg 檔 雙擊 Docker.dmg, 把鯨魚拉到 Applications 檢查是否都安裝完成 $ docker --version Docker version 18.09.2, build 6247962 $ docker-compose --version docker-compose version 1.23.2, build 1110ad01 $ docker-machine --version docker-machine version 0 »