---
- name: generate bootstrap token (1/2)
  command: kubeadm token generate
  changed_when: False
  check_mode: no
  register: kubeadm_token_generate

- name: generate bootstrap token (2/2)
  set_fact:
    kube_bootstrap_token: "{{ kubeadm_token_generate.stdout }}"

################
### check if master ist already initialized

# if not
- name: set up kubernetes master
  command: "kubeadm init --pod-network-cidr {{ kubernetes.pod_ip_range }}  --service-cidr {{ kubernetes.service_ip_range }} {% if kubernetes.api_extra_sans | length > 0 %}--apiserver-cert-extra-sans {{ kubernetes.api_extra_sans | join(',') }}{% endif %} --token '{{ kube_bootstrap_token }}' --token-ttl 42m --skip-token-print"
  args:
    creates: /etc/kubernetes/pki/ca.crt
  register: kubeadm_init

# if it is initialized

## TODO: add bootstrap token (with expiry)

###
################

- name: dump output of kubeadm init to log file
  when: kubeadm_init.changed
  copy:
    content: "{{ kubeadm_init.stdout }}\n"
    dest: /etc/kubernetes/kubeadm-init.log

- name: check if master is tainted (1/2)
  command: "kubectl --kubeconfig /etc/kubernetes/admin.conf get node {{ inventory_hostname }} -o json"
  check_mode: no
  register: kubectl_get_node
  changed_when: False

- name: check if master is tainted (2/2)
  set_fact:
    kube_node_taints: "{% set node_info = kubectl_get_node.stdout | from_json %}{%if node_info.spec.taints is defined %}{{ node_info.spec.taints | map(attribute='key') | list }}{% endif %}"

- name: remove taint from master node
  when: "kubernetes.dedicated_master == False and 'node-role.kubernetes.io/master' in kube_node_taints"
  command: kubectl --kubeconfig /etc/kubernetes/admin.conf taint nodes --all node-role.kubernetes.io/master-

- name: add taint for master node
  when: "kubernetes.dedicated_master == True and 'node-role.kubernetes.io/master' not in kube_node_taints"
  command: "kubectl --kubeconfig /etc/kubernetes/admin.conf taint nodes {{ ansible_nodename }} node-role.kubernetes.io/master='':NoSchedule"

- name: install openssl
  apt:
    name: openssl
    state: present

- name: get ca certificate digest (1/2)
  shell: "openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | openssl dgst -sha256 -hex | sed 's/^.* //'"
  register: kube_ca_openssl
  changed_when: False

- name: get ca certificate digest (2/2)
  set_fact:
    kube_bootstrap_ca_cert_hash: "sha256:{{ kube_ca_openssl.stdout }}"