blob: e40b699b9cb124bf832ede9d5246920f94f899db (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
---
# TODO(bbezak): Remove in G/2026.1 release as Redis migration is no longer required
- name: Check if Redis is running
become: true
kolla_container_facts:
action: get_containers
container_engine: "{{ kolla_container_engine }}"
name:
- redis
check_mode: false
register: redis_container_facts
- name: Set migration flag if Redis is present
set_fact:
_valkey_migration: "{{ redis_container_facts.containers['redis'] is defined }}"
- name: Perform Redis to Valkey migration steps
when: redis_container_facts.containers['redis'] is defined
block:
- name: Set temporary Valkey migration vars
set_fact:
valkey_server_port: "6380"
valkey_sentinel_port: "26380"
valkey_sentinel_monitor_name: "kolla-temp"
- name: Set valkey master host to valkey[0]
set_fact:
valkey_master_host: "{{ groups['valkey'][0] }}"
redis_slave_hosts: "{{ groups['redis'][1:] }}"
run_once: true
- name: Start Valkey on temporary ports with temp sentinel monitor name
import_tasks: deploy.yml
- name: Wait for Valkey replication sync
become: true
changed_when: false
delegate_to: "{{ valkey_master_host }}"
run_once: true
command: >-
{{ kolla_container_engine }} exec valkey_server
valkey-cli -h {{ api_interface_address }} -p {{ valkey_server_port }} info replication
register: valkey_replication
until: "'master_link_status:up' in valkey_replication.stdout"
retries: 30
delay: 2
- name: Set replica-priority=10 on valkey[0] to ensure it becomes master
become: true
changed_when: true
delegate_to: "{{ valkey_master_host }}"
run_once: true
command: >-
{{ kolla_container_engine }} exec valkey_server valkey-cli
-h {{ api_interface_address }} -p {{ valkey_server_port }}
CONFIG SET replica-priority 10
- name: Set replica-priority=0 on other valkey nodes to prevent promotion
become: true
changed_when: true
command: >-
{{ kolla_container_engine }} exec valkey_server valkey-cli
-h {{ api_interface_address }} -p {{ valkey_server_port }} CONFIG SET replica-priority 0
when: inventory_hostname != valkey_master_host
- name: Stop redis slaves (so they don't get promoted during failover)
become: true
kolla_container:
name: redis
action: stop_container
when: inventory_hostname in redis_slave_hosts
- name: Trigger Sentinel failover (using one of redis-sentinels)
become: true
changed_when: true
delegate_to: "{{ valkey_master_host }}"
run_once: true
command: >-
{{ kolla_container_engine }} exec redis_sentinel redis-cli
-h {{ api_interface_address }}
-p {{ redis_sentinel_port }}
SENTINEL failover kolla
- name: Wait until Valkey becomes master
become: true
changed_when: false
delegate_to: "{{ valkey_master_host }}"
run_once: true
command: >-
{{ kolla_container_engine }} exec valkey_server
valkey-cli -h {{ api_interface_address }} -p {{ valkey_server_port }} info replication
register: valkey_role
until: "'role:master' in valkey_role.stdout"
retries: 30
delay: 2
- name: Stop all Redis containers
become: true
kolla_container:
name: redis
action: stop_and_remove_container
when: inventory_hostname in groups['redis']
- name: Stop all Sentinel containers
become: true
kolla_container:
name: redis_sentinel
action: stop_and_remove_container
when: inventory_hostname in groups['redis']
- name: Remove Redis data volume
become: true
kolla_container:
action: remove_volume
name: redis
when: inventory_hostname in groups['redis']
# These tasks run always, regardless of Redis presence
- name: Reset Valkey port to default (6379) after migration
set_fact:
valkey_server_port: "6379"
valkey_sentinel_port: "26379"
valkey_sentinel_monitor_name: "kolla"
_valkey_migration: false
- name: Reconfigure/Redeploy Valkey on default ports
import_tasks: reconfigure.yml
- name: Verify Valkey responds on port 6379
import_tasks: check.yml
- import_tasks: check-containers.yml
- name: Flush handlers
meta: flush_handlers
|
