Error 413 when trying to install the Elastic ECK
I managed to fix the issue by setting the proxy-body-size config map value in the system nginx config map to 8m.
proxy-body-size=8mNamespace=ingress-nginxConfig Map=nginx-configuration
thank you @juan-carlos-alafita for providing the relevant links!
413 error with Kubernetes and Nginx ingress controller
https://www.digitalocean.com/community/questions/413-request-entity-too-large-nginx