Unix singals handling in Kolla image

Registered by Duong Ha-Quang on 2017-03-06

Currently, there are some lib and service support SIGHUP for zero-downtime reconfiguration. E.g: (oslo.log, glance: https://blueprints.launchpad.net/glance/+spec/sighup-conf-reload). So, we should support signal handling and passing to service process in container init process.

Benefits:
- Optimize reconfiguration.
- Graceful shutdown service.

Blueprint information

Status:
Not started
Approver:
None
Priority:
Undefined
Drafter:
Duong Ha-Quang
Direction:
Needs approval
Assignee:
Duong Ha-Quang
Definition:
New
Series goal:
None
Implementation:
Unknown
Milestone target:
None

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