What is your experience with creating repositories in…

I have experience creating Helm charts from scratch for various types of applications, including web services, databases, and microservices. My experience includes defining dependencies, configuring YAML templates for different deployment environments, and using hooks to perform additional actions before/after deployment.

I work with various Helm templates such as templates/deployment.yaml, templates/service.yaml, templates/ingress.yaml, templates/configmap.yaml, templates/secret.yaml, and templates/hpa.yaml.

I use values.yaml for parameterizing chart settings, allowing easy adaptation to different environments (development, testing, production) without modifying the templates themselves.

I practice versioning Helm charts to track changes and enable rollback to previous versions.

I have experience integrating Helm chart creation and publication into CI/CD pipelines using tools like GitLab CI, Jenkins, GitHub Actions.

An example structure of a simple Helm chart:

# apiVersion - Kubernetes API version
# appVersion - version of the application installed by the chart
# description - chart description
# name - chart name
# type - chart type
# version - chart version

The following directories and files play a key role in chart creation:

Chart.yaml: Chart metadata.
values.yaml: Default values for templates.
templates/: Directory with Kubernetes manifest templates.
charts/: Directory for nested dependency charts.

Example fragment of values.yaml:

# image - container image settings
image:
  repository: nginx # image repository
  pullPolicy: IfNotPresent # image pull policy
  tag: "latest" # image tag

Example fragment of templates/deployment.yaml using values from values.yaml:

# apiVersion - Kubernetes API version
# kind - resource type (Deployment in this case)
apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ include "mychart.fullname" . }} # full resource name, generated automatically
  labels:
    {{- include "mychart.labels" . | nindent 4 }} # common labels for the resource
spec:
  replicas: {{ .Values.replicaCount }} # number of replicas from values.yaml
  selector:
    matchLabels:
      {{- include "mychart.selectorLabels" . | nindent 6 }} # labels for pod selection
  template:
    metadata:
      labels:
        {{- include "mychart.selectorLabels" . | nindent 8 }}
    spec:
      containers:
        - name: {{ .Chart.Name }} # container name
          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}" # full image path
          imagePullPolicy: {{ .Values.image.pullPolicy }} # image pull policy

I use the include function for reusing YAML blocks and the nindent function for proper indentation formatting.

Understanding the Helm release lifecycle (install, upgrade, rollback, uninstall) is also part of my experience.

What is your experience with creating repositories in Helm?