APM server configuration with auth and SSL certs

apm-server.yml

apm-server:
  host: "0.0.0.0:8200"
  auth:
    secret_token: 'secret token generated using openssl or any other string'
  ssl:
    enabled: true
    certificate: '/usr/share/apm-server/certs/elk.example.com/elk.example.com.crt'
    key: '/usr/share/apm-server/certs/elk.example.com/elk.example.com.key'

output.elasticsearch:
  hosts: ["localhost:9200"]
  enabled: true
  protocol: 'https'
  username: 'elastic'
  password: '<elasticsearch password>'
  ssl.enabled: true
  ssl.verification_mode: full
  ssl.certificate_authorities: ['/usr/share/apm-server/certs/http_ca.crt']