kolla-ansible

History

Radosław Piliszek c2d0bf30ea Coordinate haproxy and keepalived restarts Keepalived and haproxy cooperate to provide control plane HA in kolla-ansible deployments. Certain care should be exerted to avoid prolonged availability loss during reconfigurations and upgrades. This patch aims to provide this care. There is nothing special about keepalived upgrade compared to reconfig, hence it is simplified to run the same code as for deploy. The broken logic of safe upgrade is replaced by common handler code which's goal is to ensure we down current master only after we have backups ready. This change introduces a switch to kolla_docker module that allows to ignore missing containers (as they are logically stopped). ignore_missing is the switch's name. All tests are included. Change-Id: I22ddec5f7ee4a7d3d502649a158a7e005fe29c48	2020-10-04 16:58:24 +02:00
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main.yml	Coordinate haproxy and keepalived restarts	2020-10-04 16:58:24 +02:00

Radosław Piliszek c2d0bf30ea Coordinate haproxy and keepalived restarts

Keepalived and haproxy cooperate to provide control plane HA in
kolla-ansible deployments.
Certain care should be exerted to avoid prolonged availability
loss during reconfigurations and upgrades.
This patch aims to provide this care.
There is nothing special about keepalived upgrade compared to
reconfig, hence it is simplified to run the same code as for
deploy.
The broken logic of safe upgrade is replaced by common handler
code which's goal is to ensure we down current master only after
we have backups ready.

This change introduces a switch to kolla_docker module that allows
to ignore missing containers (as they are logically stopped).
ignore_missing is the switch's name.
All tests are included.

Change-Id: I22ddec5f7ee4a7d3d502649a158a7e005fe29c48

2020-10-04 16:58:24 +02:00

main.yml

Coordinate haproxy and keepalived restarts

2020-10-04 16:58:24 +02:00