checkly-operator

A kubernetes operator for checklyhq.com.

The operator can create checklyhq.com checks, groups and alert channels based of kubernetes CRDs and Ingress object annotations.

Documentation

Please see our docs for more details on how to install and use the operator.

Development

direnv

We're using direnv to manage environment variables for this project (or export them manually and you can skip this step). Make sure you generate a checkly API key and you get the account ID as well.

touch .envrc
echo "export CHECKLY_API_KEY=foorbarbaz" > .envrc
echo "export CHECKLY_ACCOUNT_ID=randomnumbers" >> .envrc
direnv allow .

Makefile

Make sure your current kubectl context is set to the appropriate kubernetes cluster where you want to test the operator, then run

kubectl apply -f config/crd/bases/k8s.checklyhq.com_apichecks.yaml
kubectl apply -f config/crd/bases/k8s.checklyhq.com_groups.yaml
kubectl apply -f config/crd/bases/k8s.checklyhq.com_alertchannels.yaml
make run

If you update any of the types for the CRD, run

make manifests

and re-apply the CRD.

Testing the controller

Unit and integration tests

• Make sure your kubectl context is set to your local k8s cluster
• Run USE_EXISTING_CLUSTER=true make test
• To see coverage run go tool cover -html=cover.out

Running locally

See docs for details.

Source material

Sources used for kick starting this project:

• https://sdk.operatorframework.io/docs/building-operators/golang/tutorial/
• https://kubernetes.io/blog/2021/06/21/writing-a-controller-for-pod-labels/
• https://github.com/checkly/checkly-go-sdk
• https://docs.okd.io/latest/operators/operator_sdk/golang/osdk-golang-tutorial.html
• https://sdk.operatorframework.io/docs/building-operators/golang/advanced-topics/#external-resources
• https://book.kubebuilder.io/cronjob-tutorial/writing-tests.html

Versions

We're using the following versions of packages:

• operator-sdk 1.31.0
• golang 1.21