kubespray/roles/recover_control_plane/etcd/tasks/main.yml

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---
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- name: Get etcd endpoint health
command: "{{ bin_dir }}/etcdctl endpoint health"
register: etcd_endpoint_health
ignore_errors: true
changed_when: false
check_mode: no
environment:
ETCDCTL_API: 3
ETCDCTL_ENDPOINTS: "{{ etcd_access_addresses }}"
ETCDCTL_CERT: "{{ etcd_cert_dir }}/admin-{{ inventory_hostname }}.pem"
ETCDCTL_KEY: "{{ etcd_cert_dir }}/admin-{{ inventory_hostname }}-key.pem"
ETCDCTL_CACERT: "{{ etcd_cert_dir }}/ca.pem"
when:
- groups['broken_etcd']
- name: Set healthy fact
set_fact:
healthy: "{{ etcd_endpoint_health.stderr is match('Error: unhealthy cluster') }}"
when:
- groups['broken_etcd']
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# When there is an error, everything is printed in stderr_lines, even "is healthy" messages.
- name: Set has_quorum fact
set_fact:
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has_quorum: "{{ etcd_endpoint_health.stderr_lines | select('match', '.*is healthy.*') | list | length >= etcd_endpoint_health.stderr_lines | select('match', '.*is unhealthy.*') | list | length }}"
- include_tasks: recover_lost_quorum.yml
when:
- groups['broken_etcd']
- not has_quorum
- name: Remove etcd data dir
file:
path: "{{ etcd_data_dir }}"
state: absent
delegate_to: "{{ item }}"
with_items: "{{ groups['broken_etcd'] }}"
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ignore_errors: true
when:
- groups['broken_etcd']
- has_quorum
- name: Delete old certificates
# noqa 302 - rm is ok here for now
shell: "rm {{ etcd_cert_dir }}/*{{ item }}*"
with_items: "{{ groups['broken_etcd'] }}"
register: delete_old_cerificates
ignore_errors: true
when: groups['broken_etcd']
- name: Fail if unable to delete old certificates
fail:
msg: "Unable to delete old certificates for: {{ item.item }}"
loop: "{{ delete_old_cerificates.results }}"
changed_when: false
when:
- groups['broken_etcd']
- "item.rc != 0 and not 'No such file or directory' in item.stderr"
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- name: Get etcd cluster members
command: "{{ bin_dir }}/etcdctl member list"
register: member_list
changed_when: false
check_mode: no
environment:
ETCDCTL_API: 3
ETCDCTL_ENDPOINTS: "{{ etcd_access_addresses }}"
ETCDCTL_CERT: "{{ etcd_cert_dir }}/admin-{{ inventory_hostname }}.pem"
ETCDCTL_KEY: "{{ etcd_cert_dir }}/admin-{{ inventory_hostname }}-key.pem"
ETCDCTL_CACERT: "{{ etcd_cert_dir }}/ca.pem"
when:
- groups['broken_etcd']
- not healthy
- has_quorum
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- name: Remove broken cluster members
command: "{{ bin_dir }}/etcdctl member remove {{ item[1].replace(' ','').split(',')[0] }}"
environment:
ETCDCTL_API: 3
ETCDCTL_ENDPOINTS: "{{ etcd_access_addresses }}"
ETCDCTL_CERT: "{{ etcd_cert_dir }}/admin-{{ inventory_hostname }}.pem"
ETCDCTL_KEY: "{{ etcd_cert_dir }}/admin-{{ inventory_hostname }}-key.pem"
ETCDCTL_CACERT: "{{ etcd_cert_dir }}/ca.pem"
with_nested:
- "{{ groups['broken_etcd'] }}"
- "{{ member_list.stdout_lines }}"
when:
- groups['broken_etcd']
- not healthy
- has_quorum
- hostvars[item[0]]['etcd_member_name'] == item[1].replace(' ','').split(',')[2]