Step 8 Create Kustomize Chart Configuration Managers - truongnhatbui/techtrends GitHub Wiki

For the management of multiple declarative Kubernetes manifests, a templating layer is necessary, especially if the application is replicated across different regions. For this purpose configuration managers, such as Helm and Kustomize, were introduced.

This exercise will focus on creating your first Helm chart to deploy multiple Nginx applications using the same template and multiple input files.

Exercise Using the manifests provided in the course repository, create a helm chart (Chart.yaml, templates, values.yaml) that will template the following parameters:

namespace name replica count image: name tag pull policy resources requests for CPU and memory service port type (e.g. ClusterIP) configmap data (e.g. the key-value pair) The chart details should be as following:

name: nginx-deployment version: 1.0.0 keywords: nginx Once the Helm chart is available make sure that a default values.yaml file is available. This values file will be used as a default input file for the Helm chart. The values.yaml file should have the following specification:

values.yaml namespace name: demo replica count: 3 image repository: nginx image tag: alpine image pull policy: IfNotPresent resources: CPU 50m and memory 256Mi service type: ClusterIP service port: 8111 configmap data: "version: alpine" Next, create 2 values files with the following specifications:

values-staging.yaml

namespace name: staging replica count: 1 image repository: nginx image tag: 1.18.0 resources: CPU 50m and memory 128Mi configmap data: "version: 1.18.0" values-prod.yaml

namespace name: prod replica count: 2 image repository: nginx image tag: 1.17.0 resources: CPU 70m and memory 256Mi service port: 80 configmap data: "version: 1.17.0" Finally, using the values files above (values-prod, values-staging), create 2 ArgoCD application, nginx-staging and nginx-prod respectively. These should deploy the nginx Helm Chart referencing each input values files.

Make sure you completed the following tasks:

Task List