在 Docker 上搭建 PostGIS 数据库实现空间数据存储及可视化

此文旨在记录与传播在 Docker 上搭建 PostGIS 数据库实现空间数据存储及可视化的知识要点。

PostGIS

已经有PostGIS经验的大佬可以忽略此段了。解释 PostGIS 之前需要介绍 PostgreSQL (简称 postgres ); postgres 是一个数据库服务器软件，由加州大学伯克利分校计算机系开发；部署在服务器上可以由不同数量的客户端连接，进而操作postgres 数据库中的数据。PostGIS 是在 postgres 之上的一款扩展软件，他主要用来存储及操作空间数据（矢量和栅格），还可以对进行空间分析。

Docker

对于一位不熟悉命令行的用户来说可能Docker 是一头野兽；有点吓人吧。 因为他的大部分操作都是基于命令行的；但是它为您提供了一种构建和运行软件的方式，通过构建一种名为LXC容器的技术，以非常一致和可控的方式运行软件。

对于GISer来说，Docker 和 PostGIS 又意味着什么呢？ 如果有 Docker 和 PostGIS 技术，GISer或者其他人都能以最小的配置在任何机器上安装软件，而且环境都是一致的，这在开发和运维中至关重要。当然 Docker 这项技术并不限于和 PostGIS 结合。

安装Docker

Docker 是夸平台的可以安装在任何机器上。前面已经有关于 Docker 安装及使用的文章，可以去参考，在这就不去一一解释了，直接给出通过 Vagrant 安装的简略步骤。

环境

序号	名称	版本	用途
1	centos	7	系统
2	kartoza/postgis	9.6-2.4	docker镜像
3	Virtual Box	latest	虚拟机

注： 因为我们安装好的 PostGIS 要和我们本机的软件进行通信，所以需要使用 host-only 网络, 且指定IP为192.168.33.10。

Vagrantfile文件内容

注：假定已安装Virtual Box 及 Vagrant.

# -*- mode: ruby -*-
# vi: set ft=ruby :

# All Vagrant configuration is done below. The "2" in Vagrant.configure
# configures the configuration version (we support older styles for
# backwards compatibility). Please don't change it unless you know what
# you're doing.
Vagrant.configure("2") do |config|
  # The most common configuration options are documented and commented below.
  # For a complete reference, please see the online documentation at
  # https://docs.vagrantup.com.

  # Every Vagrant development environment requires a box. You can search for
  # boxes at https://vagrantcloud.com/search.
  config.vm.box = "centos/7"

  # Disable automatic box update checking. If you disable this, then
  # boxes will only be checked for updates when the user runs
  # `vagrant box outdated`. This is not recommended.
  # config.vm.box_check_update = false

  # Create a forwarded port mapping which allows access to a specific port
  # within the machine from a port on the host machine. In the example below,
  # accessing "localhost:8080" will access port 80 on the guest machine.
  # NOTE: This will enable public access to the opened port
  # config.vm.network "forwarded_port", guest: 80, host: 8080

  # Create a forwarded port mapping which allows access to a specific port
  # within the machine from a port on the host machine and only allow access
  # via 127.0.0.1 to disable public access
  # config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"

  # Create a private network, which allows host-only access to the machine
  # using a specific IP.
  config.vm.network "private_network", ip: "192.168.33.10"
  # config.vm.network "public_network", ip: "192.168.141.204"

  # Create a public network, which generally matched to bridged network.
  # Bridged networks make the machine appear as another physical device on
  # your network.
  # config.vm.network "public_network"

  # Share an additional folder to the guest VM. The first argument is
  # the path on the host to the actual folder. The second argument is
  # the path on the guest to mount the folder. And the optional third
  # argument is a set of non-required options.
  # config.vm.synced_folder "../data", "/vagrant_data"

  # Provider-specific configuration so you can fine-tune various
  # backing providers for Vagrant. These expose provider-specific options.
  # Example for VirtualBox:
  #
  # config.vm.provider "virtualbox" do |vb|
  #   # Display the VirtualBox GUI when booting the machine
  #   vb.gui = true
  #
  #   # Customize the amount of memory on the VM:
  #   vb.memory = "1024"
  # end
  #
  # View the documentation for the provider you are using for more
  # information on available options.

  # Enable provisioning with a shell script. Additional provisioners such as
  # Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
  # documentation for more information about their specific syntax and use.
  # config.vm.provision "shell", inline: <<-SHELL
  #   apt-get update
  #   apt-get install -y apache2
  # SHELL
end

安装 centos 系统

 

原文链接