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Regenerate apiserver.crt on all control-plane nodes #7463

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Apr 12, 2021
Merged

Regenerate apiserver.crt on all control-plane nodes #7463

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20 changes: 14 additions & 6 deletions roles/kubernetes/control-plane/tasks/kubeadm-setup.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -81,12 +81,22 @@
mode: 0640

- name: kubeadm | Check if apiserver.crt contains all needed SANs
command: openssl x509 -noout -in "{{ kube_cert_dir }}/apiserver.crt" -check{{ item|ipaddr|ternary('ip','host') }} "{{ item }}"
with_items: "{{ apiserver_sans }}"
shell: |
set -o pipefail
for IP in {{ apiserver_ips | join(' ') }}; do
openssl x509 -noout -in "{{ kube_cert_dir }}/apiserver.crt" -checkip $IP | grep -q 'does match certificate' || echo 'NEED-RENEW'
done
for HOST in {{ apiserver_hosts | join(' ') }}; do
openssl x509 -noout -in "{{ kube_cert_dir }}/apiserver.crt" -checkhost $HOST | grep -q 'does match certificate' || echo 'NEED-RENEW'
done
vars:
apiserver_ips: "{{ apiserver_sans|map('ipaddr')|reject('equalto', False)|list }}"
apiserver_hosts: "{{ apiserver_sans|difference(apiserver_ips) }}"
args:
executable: /bin/bash
register: apiserver_sans_check
changed_when: "'does match certificate' not in apiserver_sans_check.stdout"
changed_when: "'NEED-RENEW' in apiserver_sans_check.stdout"
when:
- inventory_hostname == groups['kube_control_plane']|first
- kubeadm_already_run.stat.exists

- name: kubeadm | regenerate apiserver cert 1/2
Expand All @@ -97,7 +107,6 @@
- apiserver.crt
- apiserver.key
when:
- inventory_hostname == groups['kube_control_plane']|first
- kubeadm_already_run.stat.exists
- apiserver_sans_check.changed

Expand All @@ -107,7 +116,6 @@
init phase certs apiserver
--config={{ kube_config_dir }}/kubeadm-config.yaml
when:
- inventory_hostname == groups['kube_control_plane']|first
- kubeadm_already_run.stat.exists
- apiserver_sans_check.changed

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