@tsullivan Please check the below. Below was my environment. Kindly help on it.
docker.elastic.co/kibana/kibana 8.0.0
Below was my settings in kibana.yml
server.name: kib01
server.port: 5601
server.host: "0.0.0.0"
elasticsearch.hosts: ["http://es01:9200"]
elasticsearch.username: "kibana_system"
elasticsearch.password: ""
#xpack.actions.enabled: true
xpack.encryptedSavedObjects.encryptionKey: 3334b9d
xpack.reporting.encryptionKey: 6c1a4d1ce*
#xpack.security.encryptionKey: a40203059***
#xpack.actions.enabledActionTypes: ["*"]
xpack.reporting.kibanaServer.hostname: localhost
xpack.reporting.kibanaServer.protocol: http
xpack.reporting.capture.browser.chromium.disableSandbox: true
xpack.reporting.kibanaServer.port: 5601
xpack.reporting.queue.timeout: 60000