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: "This requires additional resources, such as ClusterRoles and RoleBindings, to ensure the Prometheus Pod has permission to scrape metrics from the cluster and its applications."

A block of code is set as follows:

apiVersion: monitoring.coreos.com/v1

kind: Prometheus

metadata:

  name: sample

spec:

  replicas: 2

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

apiVersion: monitoring.coreos.com/v1

kind: ServiceMonitor

metadata:

  name: web-service-monitor

  labels:

    app: web

spec:

  selector:

    matchLabels:

      serviceLabel: webapp

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

$ export BUNDLE_IMG=docker.io/sample/nginx-bundle:v0.0.2
$ make bundle-build bundle-push
$ operator-sdk run bundle docker.io/same/nginx-bundle:v0.0.2

Bold: Indicates a new term, an important word, or words that you see on screen. For instance, words in menus or dialog boxes appear in bold. Here is an example: "Clicking on the Grafana Operator tile opens up the information page for this specific Operator."

Tips or Important Notes

Appear like this.