In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "When executing docker swarm init, just copy-paste the lines printed as output"

A block of code is set as follows:

digitalocean:
      image: “docker-1.12-rc4”
      region: nyc3
      ssh_key_fingerprint: “your SSH ID”
      ssh_user: root

Any command-line input or output is written as follows:

      # Set $GOPATH here
      go get https://github.com/chanwit/belt

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "The UI has the expected options, included a list of templates for launching containers, such as MySQL or a Private Registry, but at the moment of writing it doesn’t support Swarm services yet"