在Docker上玩转PostgreSQL -- Mac篇[转]

原文链接 https://yq.aliyun.com/articles/2307

战前准备

大家以热烈的掌声来欢迎神器：Docker Toolbox登场!

1. 简述

   Docker Toolbox的诞生是广大Mac和Windows用户玩转Docker的福音。

   再也不用再折腾boot2docker各种墙的问题，俺是不会告诉你：运行boot2docker init会有一种让你砸掉键盘的冲动，好吧，小编还真砸掉一块了，-_-!!。

2. 安装Homebrew

   ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

3. 安装Cask

   brew install caskroom/cask/brew-cask

4. 安装Docker Toolbox

   brew cask install dockertoolbox

运行Docker Quickstart Terminal.app

bash --login '/Applications/Docker/Docker Quickstart Terminal.app/Contents/Resources/Scripts/start.sh'

出现以下提示，说明Docker已经就绪

                        ##         .                  ## ## ##        ==               ## ## ## ## ##    ===           /"""""""""""""""""\___/ ===      ~~~ {~~ ~~~~ ~~~ ~~~~ ~~~ ~ /  ===- ~~~           \______ o           __/             \    \         __/              \____\_______/docker is configured to use the default machine with IP *.*.*.*For help getting started, check out the docs at https://docs.docker.com

否则会提示

Cannot connect to the Docker daemon. Is the docker daemon running on this host?

动手制作PostgreSQL Docker镜像

1. 编写Dockerfile

   这里有介绍Dockerfile的最佳实践以及官方有详细的参考指南，请大家各自阅读。

   翠花，上PG Dockerfile

   $ cd ~;mkdir mypostgresql;cd mypostgresql$ cat DockerfileFROM ubuntu:16.04RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8RUN echo "deb http://apt.postgresql.org/pub/repos/apt/ precise-pgdg main" > /etc/apt/sources.list.d/pgdg.listRUN apt-get update && apt-get -y -q install python-software-properties software-properties-common \    && apt-get -y -q install postgresql-9.4 postgresql-client-9.4 postgresql-contrib-9.4USER postgresRUN /etc/init.d/postgresql start \    && psql --command "CREATE USER pger WITH SUPERUSER PASSWORD 'pger';" \    && createdb -O pger pgerdbUSER rootRUN echo "host all  all    0.0.0.0/0  md5" >> /etc/postgresql/9.4/main/pg_hba.confRUN echo "listen_addresses='*'" >> /etc/postgresql/9.4/main/postgresql.confEXPOSE 5432RUN mkdir -p /var/run/postgresql && chown -R postgres /var/run/postgresqlVOLUME  ["/etc/postgresql", "/var/log/postgresql", "/var/lib/postgresql"]USER postgresCMD ["/usr/lib/postgresql/9.4/bin/postgres", "-D", "/var/lib/postgresql/9.4/main", "-c", "config_file=/etc/postgresql/9.4/main/postgresql.conf"]

2. 制作Docker镜像

   docker build --rm=true -t mypostgresql:9.4 .

3. 运行PostgreSQL On Docker

   docker run -i -t -p 5432:5432 mypostgresql:9.4

4. 测试

   psql -h localhost -p 5432 -U pger -W pgerdb

   结果显示如下，说明镜像制作成功了，细心的读者可能会发现里面已经多了一个名叫pgerdb的数据库

   Password for user pger:psql (9.4.2, server 9.4.5)SSL connection (protocol: TLSv1.2, cipher: ECDHE-RSA-AES256-GCM-SHA384, bits: 256, compression: off)Type "help" for help.pgerdb=# \l                             List of databases   Name    |  Owner   | Encoding  | Collate | Ctype |   Access privileges-----------+----------+-----------+---------+-------+----------------------- pgerdb    | pger     | SQL_ASCII | C       | C     | postgres  | postgres | SQL_ASCII | C       | C     | template0 | postgres | SQL_ASCII | C       | C     | =c/postgres          +           |          |           |         |       | postgres=CTc/postgres template1 | postgres | SQL_ASCII | C       | C     | =c/postgres          +           |          |           |         |       | postgres=CTc/postgres(4 rows)pgerdb=#

搞定，以上就是今天要分享的PostgreSQL On Docker的话题，希望对大家有用，祝玩得开心～～