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Running PodInfo

Updated Aug 19, 2022 ·

Overview​

Podinfo is a small web application used to test, demo, and learn Kubernetes and GitOps tools like FluxCD.

  • Shows pod details through a web UI
  • Supports health checks and horizontal scaling
  • Good for testing GitOps flows with FluxCD

Pre-requisites​

Project Structure​

If you followed the steps in [setting up Flux](/docs/015-Containerization/046-Flux/011-Setting-Up-Flux.md, your project directory should have the following files:

$ tree
.
├── README.md
└── clusters
    └── dev
        └── flux-system
            ├── gotk-components.yaml
            ├── gotk-sync.yaml
            └── kustomization.yaml

3 directories, 4 files

This repository contains the Flux CD configuration files, but it doesn't necessaruly need to contain the application files as well.

podinfo-repo.yaml​

To use a different repository which contain the application files, create a new config file which tells Flux to monitor a new Git repository:

# clusters/dev/flux-system/podinfo-repo.yaml 
apiVersion: source.toolkit.fluxcd.io/v1
kind: GitRepository
metadata:
  name: podinfo
  namespace: flux-system
spec:
  interval: 30s       ## how frequent flux will sync
  url: https://github.com/stefanprodan/podinfo.git
  ref:
    branch: master
info

This only tells FluxCD to watch the repo, not what to do with it.