Values.yaml file

As explained in Machine Learning Platform Engineering

A Helm values file is a configuration file containing values that customize templates in a Helm chart.

A values.yaml file supplies configuration values that Helm chart templates use to customize Kubernetes objects. It can control properties such as container images, CPU and memory requests, replica counts, service types, and ports across an application. section 3.3.6

Application configuration

A chart can set three replicas, select the varunmallya/hello-joker:v1 image, use an IfNotPresent pull policy, and expose port 8080 through a NodePort service.

Figure 3.9 The service_template.yaml file defines the K8s service, and the type of service and port are obtained from values.yaml. The template and values form the core of a Helm chart.

Trace how a service template obtains its type and port from values.yaml, connecting configuration to generated Kubernetes resources. section 3.3.6

How Machine Learning Platform Engineering covers it

How deep it goes

Explains the template-to-values relationship and demonstrates configuration fields, but does not detail Helm value-merging or schema behavior.

Examples

Uses replicaCount, image settings, and NodePort service configuration to deploy a multi-replica application.

What it assumes

Assumes familiarity with basic Kubernetes objects while introducing Helm charts, templates, and values together.

What you can do after

Operate/configure Helm deployments by editing chart values and verifying the resulting Kubernetes resources.

How it connects

Connects Helm charts with Kubernetes object templates, deployments, pods, services, and container images.

liveBookmanning.com

Read Machine Learning Platform Engineering on liveBook Get the book at manning.com

Also explained in

• 

  liveBookmanning.com
  Acing the Certified Kubernetes Administrator Exam, Second EditionA values file is a YAML configuration file containing parameters that Helm substitutes into chart templates.
• 

  liveBookmanning.com
  Data Pipelines with Apache Airflow, Second EditionA Helm values file is a configuration file containing values that parameterize a Helm chart deployment.

Compare how 3 books explain values.yaml file →

Related concepts

• Helm chartconfigures · A Helm chart is a versioned package of templated Kubernetes resource definitions, configuration values, and metadata for deploying an application or service.
• Kubernetes object templateconfigures · A Kubernetes object template is a parameterized YAML definition of a Kubernetes object with customizable properties.
• Airflow deploymentconfigures · An Airflow deployment is an installed and configured operational instance of the Apache Airflow platform.
• Helmconfigures · Helm is a Kubernetes package manager and templating tool that defines, packages, installs, upgrades, and manages applications through charts.
• YAMLkind of · YAML is a human-readable data-serialization standard for representing structured data, including mappings, sequences, and scalar values.

This explainer was generated by Manning's knowledge graph from the text of Machine Learning Platform Engineering. The section links point to the parts of the book it draws on.