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---
- name: generate bootstrap token
command: kubeadm token generate
changed_when: False
check_mode: no
register: kubeadm_token_generate
- name: extract token id and secret
set_fact:
kube_bootstrap_token: "{{ kubeadm_token_generate.stdout }}"
- 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
- 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
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: set ca digest fact
set_fact:
kube_bootstrap_ca_cert_hash: "sha256:{{ kube_ca_openssl.stdout }}"
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