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CONTRIBUTING.md

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Contributing

Argo Helm is a collection of community maintained charts. Therefore we rely on you to test your changes sufficiently.

Testing Argo Workflows Changes

Minimally:

helm install charts/argo -n argo
argo version

Follow this instructions for running a hello world workflow.

Testing Argo CD Changes

Clean-up:

helm delete argo-cd --purge
kubectl delete crd -l app.kubernetes.io/part-of=argocd

Minimally:

helm install charts/argo-cd --namespace argocd -n argo-cd
kubectl port-forward service/argo-cd-argocd-server -n argocd 8080:443

In a new terminal:

argocd version --server localhost:8080 --insecure
# reset password to 'Password1!'
kubectl -n argocd patch secret argocd-secret \
  -p '{"stringData": {
    "admin.password": "$2a$10$hDj12Tw9xVmvybSahN1Y0.f9DZixxN8oybyA32Uy/eqWklFU4Mo8O",
    "admin.passwordMtime": "'$(date +%FT%T%Z)'"
  }}'
argocd login localhost:8080 --username admin --password 'Password1!'

# WARNING: server certificate had error: x509: certificate signed by unknown authority. Proceed insecurely (y/n)? y

Create and sync app:

argocd app create guestbook --dest-namespace default --dest-server https://kubernetes.default.svc --path guestbook --project default --repo https://github.com/argoproj/argocd-example-apps.git
argocd app sync guestbook

New Application Versions

When raising application versions ensure you make the following changes:

  • values.yaml: Bump all instances of the container image version
  • Chart.yaml: Ensure appVersion matches the above container image and bump version

Please ensure chart version changes adhere to semantic versioning standards:

  • Patch: App version patch updates, backwards compatible optional chart features
  • Minor: New chart functionality (sidecars), major application updates or minor non-backwards compatible changes
  • Major: Large chart rewrites, major non-backwards compatible or destructive changes

Testing Charts

As part of the Continous Intergration system we run Helm's Chart Testing tool.

The checks for this tool are stricter than the standard Helm requirements, where fields normally considered optional like maintainer are required in the standard spec and must be valid GitHub usernames.

Linting configuration can be found in lintconf.yaml

The linting can be invoked manually with the following command:

./scripts/lint.sh

Publishing Changes

Changes are automatically publish whenever a commit is merged to master. The CI job (see .circleci/config.yaml) runs this:

GIT_PUSH=true ./scripts/publish.sh

Script generates tar file for each chart in charts directory and push changes to gh-pages branch. Write access to https://github.com/argoproj/argo-helm.git is required to publish changes.