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---
# Check the cluster is healthy
- include_tasks: check_cluster_health.yml
# Check if there is at least one v2 snapshot
- name: Check if there is at least one v2 snapshot
find:
paths: "{{ etcd_data_dir }}/member/snap"
patterns: '*.snap'
register: snapshots_result
- fail:
msg: "Before the migration can proceed the etcd member must write down at least one snapshot under {{ etcd_data_dir }}/member/snap directory."
when: snapshots_result.matched | int == 0
# Check if the member has v3 data already
# Run the migration only if the data are v2
- name: Check if there are any v3 data
command: >
etcdctl --cert {{ etcd_peer_cert_file }} --key {{ etcd_peer_key_file }} --cacert {{ etcd_peer_ca_file }} --endpoints 'https://{{ etcd_peer }}:{{ etcd_client_port }}' get "" --from-key --keys-only -w json --limit 1
environment:
ETCDCTL_API: 3
register: l_etcdctl_output
- fail:
msg: "Unable to get a number of v3 keys"
when: l_etcdctl_output.rc != 0
- fail:
msg: "The etcd has at least one v3 key"
when: "'count' in (l_etcdctl_output.stdout | from_json) and (l_etcdctl_output.stdout | from_json).count != 0"
# TODO(jchaloup): once the until loop can be used over include/block,
# remove the repetive code
# - until loop not supported over include statement (nor block)
# https://github.com/ansible/ansible/issues/17098
# - with_items not supported over block
# Check the cluster status for the first time
- include_tasks: check_cluster_status.yml
# Check the cluster status for the second time
- block:
- debug:
msg: "l_etcd_cluster_status_ok: {{ l_etcd_cluster_status_ok }}"
- name: Wait a while before another check
pause:
seconds: 5
when: not l_etcd_cluster_status_ok | bool
- include_tasks: check_cluster_status.yml
when: not l_etcd_cluster_status_ok | bool
# Check the cluster status for the third time
- block:
- debug:
msg: "l_etcd_cluster_status_ok: {{ l_etcd_cluster_status_ok }}"
- name: Wait a while before another check
pause:
seconds: 5
when: not l_etcd_cluster_status_ok | bool
- include_tasks: check_cluster_status.yml
when: not l_etcd_cluster_status_ok | bool
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