Conventions used

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

Code in text: 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: “Once Chocolatey has been installed, test it with the choco --version command.”

A block of code is set as follows:

while :
do
    curl -s http://jservice.io/api/random | jq '.[0].question'
    sleep 5
done

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

…
secrets: demo-secret: "<<demo-secret-value>>" 
other-secret: "<<other-secret-value>>" 
yet-another-secret: "<<yet-another-secret-value>>" 
…

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

$ docker version 
$ docker container run hello-world

Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “From the menu, select Dashboard.”

Tips or important notes

Appear like this.