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cert-manager

This Helm chart will install cert-manager (GitHub, docs) from the official Helm chart).

💡 Kubernetes objects will be installed in cert-manager namespace

How to update the chart

# (only once) adds jetstack helm chart repository
helm repo add jetstack https://charts.jetstack.io

# updates repository information
helm repo update

# lists available charts and get latest version of the chart
helm search repo cert-manager

# (if needed) updates Chart.yaml with version

# updates Chart.lock (and downloads locally the charts)
helm dependency update

How to deploy manually

# checks the Kubernetes objects generated from the chart
helm template cert-manager . -f values.yaml --namespace cert-manager > temp.yaml

# applies CRD file (to be done once)
kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.10.0/cert-manager.crds.yaml

# installs the chart with helm
helm upgrade --install cert-manager . -f values.yaml --create-namespace --namespace cert-manager

# checks deployments (the 3 of them should be READY 1/1)
kubectl get deploy -n cert-manager

# if needed, deletes the chart
helm delete cert-manager -n cert-manager
kubectl delete ns cert-manager

How to investigate

Check existing resources

kubectl get Issuers,ClusterIssuers,Certificates,CertificateRequests,Orders,Challenges --all-namespaces

Know limitations

  • CRDs must be applied before the chart (Helm limitation: Issue #8668)

  • Let's Encrypt certificates can't be added to this chart as they require cert-manager-webhook to be working, it needs to be done in a second step