Conventions used

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: "Even though we executed the docker command inside a container, the output clearly shows the images from the host."

A block of code is set as follows:

global: 
  scrape_interval:     15s 
 
scrape_configs: 
  - job_name: Prometheus 
    metrics_path: /prometheus/metrics 
    static_configs: 
      - targets: 
        - localhost:9090 

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

global: 
  scrape_interval:     15s 
 
scrape_configs: 
  - job_name: Prometheus 
    metrics_path: /prometheus/metrics 
    static_configs: 
      - targets: 
        - localhost:9090 

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

docker container exec -it $ID \
 curl node-exporter:9100/metrics

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Please type test in the item name field, select Pipeline as the type, and click the OK button."