• Update kops documentation. Supersedes and closes #339
• Update Dockerfile:
  • Upgrade Kubernetes version, AWS instance types:
    • KUBERNETES_VERSION 1.10.11 -> 1.11.9
    • KOPS_BASE_IMAGE kope.io/k8s-1.10-debian-jessie-amd64-hvm-ebs-2018-08-17 -> kope.io/k8s-1.11-debian-stretch-amd64-hvm-ebs-2018-08-17
    • BASTION_MACHINE_TYPE t2.medium -> t3.small
    • MASTER_MACHINE_TYPE t2.medium -> t3.medium
    • NODE_MACHINE_TYPE t2.medium -> t3.medium
  • Remove ENV variables that should not have defaults:
    • KOPS_STATE_STORE
    • KOPS_STATE_STORE_REGION
    • KOPS_FEATURE_FLAGS
    • KOPS_PRIVATE_SUBNETS
    • KOPS_UTILITY_SUBNETS
    • KOPS_AVAILABILITY_ZONES