There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "In the networks key section, we are instructing Docker to create two networks, one named frontend and one named backend."

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

# Enable autolock on your swarm cluster
docker swarm update --autolock=true
# Adjust certificate expiry to 30 days
docker swarm update --cert-expiry 720h

Bold: Indicates a new term, an important word, or words that you see on screen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Once the configuration has been saved, let's test the job by clicking on the Build Now link."