---
- name: set kex according to openssh-version if openssh >= 5.9
  set_fact:
    ssh_kex: '{{ ssh_kex_59_default }}'
  when: sshd_version is version('5.9', '>=')

- name: set kex according to openssh-version if openssh >= 6.6
  set_fact:
    ssh_kex: '{{ ssh_kex_66_default }}'
  when: sshd_version is version('6.6', '>=')

- name: set kex according to openssh-version if openssh >= 8.0
  set_fact:
    ssh_kex: '{{ ssh_kex_80_default }}'
  when: sshd_version is version('8.0', '>=')