kubernetes-helm-cicd

A flask app is deployed on Kubernetes using helm charts:

helm create myapp-chart

• testing helm charts: modify the helm charts based on the app requirements and test them before actual deployment:

helm lint myapp-chart
helm template myapp-chart
helm install --dry-run --debug myapp-chart

• deployment automation: is done with helm and CICD pipeline using GitHub Actions which is triggered on push to the main branch.
• secret management: creates and applies regcred secret to be used in deployment. GitHub container registry (GHCR) is used as image registry instead of DockerHub. A GITHUB_TOKEN is needed for CICD read/write access to GHCR. If using other image registries or CICD tools, a KUBECONFIG secret might be needed to configure kubectl so that a CICD runner/agent has access to the cluster.

Prerequisites

• Docker
• Kind (Kubernetes in Docker)
• kubectl
• helm