~/talk

BOSH – Restore from an Availability Zone Outage

Talkat Cloud Foundry Day 2023 · on Wednesday, 2023-06-21· [devops-and-delivery, cloud-infrastructure]
links:none on file
name:Chun Yuan
links:none on file
slides:none on file

Migrates director state to an external blobstore and a managed RDS database (using pg_dump), replaces static IPs with hostnames, and adds ACLs plus connection termination to isolate the old director before provisioning a new director in another AZ; blob migration needed retry logic and AWS root CA fixes. The cutover aims for zero downtime for VMs, requires rotating DB passwords and removing DNS records, and a manual restore sequence currently takes about 10–20 minutes to bring a new director up.

AI-written summary · about

  1. 0:00Introduction to BOSH
  2. 2:10Multi-AZ outages impact
  3. 4:21Scenario of AZ outage
  4. 6:49Externalizing BOSH components
  5. 9:00Externalizing director database
  6. 11:32Recovering from AZ outage
  7. 14:25Key takeaways and future work
  8. 15:49Q&A session
~/search
type to search 6,249 conferences, 138,987 speakers and 185,172 talks
~/help
cmdctrl k
search every conference, speaker and series
/
focus the filter search
h
home
c
conferences
s
speakers
e
series
t
light / dark — the status bar button does the same
?
this help
esc
close this, then clear every filter — or just the search, while you are typing in it

Ignored while you are typing. Pages without a filter rail have no search to focus.