此安装教程仅供我自己安装配置时查看，其他的人不可以偷看！！！
安装Docker
1. Update package information, ensure that APT works with the https method, and that CA certificates are installed.
sudo apt-get update sudo apt-get install apt-transport-https ca-certificates
2. Add the new GPG key.
sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
3. Open the /etc/apt/sources.list.d/docker.list file in your favorite editor.If the file doesn’t exist, create it.Remove any existing entries.Add an entry for your Ubuntu operating system.
deb https://apt.dockerproject.org/repo ubuntu-precise main deb https://apt.dockerproject.org/repo ubuntu-trusty main deb https://apt.dockerproject.org/repo ubuntu-xenial main
On Ubuntu Precise 12.04 (LTS)
On Ubuntu Trusty 14.04 (LTS)
On Ubuntu Xenial 16.04 (LTS)
上面的deb要和下面的版本分别对应。
4. Save and close the /etc/apt/sources.list.d/docker.list file.Update the APT package index.Purge the old repo if it exists.Verify that APT is pulling from the right repository.
sudo apt-get update sudo apt-get purge lxc-docker apt-cache policy docker-engine
5. Update your package manager.Install the recommended packages.(仅Ubuntu Xenial 16.04 (LTS)和Ubuntu Trusty 14.04 (LTS)，12.04不做讨论，自己去docker官网看)
sudo apt-get update sudo apt-get install linux-image-extra-$(uname -r) linux-image-extra-virtual
6. Update your APT package index.Install Docker.
sudo apt-get update sudo apt-get install docker-engine
7. Start the docker daemon.
sudo service docker start
安装Docker-Compose(需要先安装docker)
1. Go to the Compose repository release page on GitHub.
2. Follow the instructions from the release page and run the curl command, which the release page specifies, in your terminal.
【“Permission denied” Run sudo -i, then the two commands below, then exit.】
3. An example command illustrating the format,Apply executable permissions to the binary.Test the installation.
curl -L https://github.com/docker/compose/releases/download/1.8.1/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose chmod +x /usr/local/bin/docker-compose
docker-compose --version
Alternative install options
Install using pip
pip version 6.0 or greater is required
pip install docker-compose
Install as a container
curl -L https://github.com/docker/compose/releases/download/1.8.0/run.sh > /usr/local/bin/docker-compose chmod +x /usr/local/bin/docker-compose