Create config File
cp ../../config-example.json config.json
Edit config.jsonon (vim, nvim, nano... )
${EDITOR} config.json
Create config file as Secret.
kubectl create secret generic config-cloudflare-ddns --from-file=config.json --dry-run=client -oyaml -n ddns > config-cloudflare-ddns-Secret.yaml
apply this secret
kubectl apply -f config-cloudflare-ddns-Secret.yaml
rm config.json # recomended Just keep de secret on Kubernetes Cluster
apply this Deployment
kubectl apply -f cloudflare-ddns-Deployment.yaml