Binaries

注解

Docker is still under heavy development! We don’t recommend using it in production yet, but we’re getting closer with each release. Please see our blog post, “Getting to Docker 1.0”

Check runtime dependencies¶

To run properly, docker needs the following software to be installed at runtime:

• iproute2 version 3.5 or later (build after 2012-05-21), and specifically the “ip” utility
• iptables version 1.4 or later
• The LXC utility scripts (http://lxc.sourceforge.net) version 0.8 or later
• Git version 1.7 or later
• XZ Utils 4.9 or later

Check kernel dependencies¶

Docker in daemon mode has specific kernel requirements. For details, check your distribution in 安装.

Note that Docker also has a client mode, which can run on virtually any linux kernel (it even builds on OSX!).

Get the docker binary:¶

wget https://get.docker.io/builds/Linux/x86_64/docker-latest -O docker
chmod +x docker

Run the docker daemon¶

# start the docker in daemon mode from the directory you unpacked
sudo ./docker -d &

Giving non-root access¶

The docker daemon always runs as the root user, and since Docker version 0.5.2, the docker daemon binds to a Unix socket instead of a TCP port. By default that Unix socket is owned by the user root, and so, by default, you can access it with sudo.

Starting in version 0.5.3, if you (or your Docker installer) create a Unix group called docker and add users to it, then the docker daemon will make the ownership of the Unix socket read/writable by the docker group when the daemon starts. The docker daemon must always run as the root user, but if you run the docker client as a user in the docker group then you don’t need to add sudo to all the client commands.

Upgrades¶

To upgrade your manual installation of Docker, first kill the docker daemon:

killall docker

Then follow the regular installation steps.

Run your first container!¶

# check your docker version
sudo ./docker version

# run a container and open an interactive shell in the container
sudo ./docker run -i -t ubuntu /bin/bash

Continue with the Hello World example.