Convert misc varnish cluster from 1layer config to 2layer config. This removes the last of our 1layer-style clusters for standardization, makes it possible to expand the misc cluster into the cache pops in a normal way, and cleans up a few things related to other coming refactoring work...
Description
Description
Details
Details
Related Changes in Gerrit:
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| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Resolved | • ema | T199720 Deploy initial ATS test clusters in core DCs | |||
| Resolved | • ema | T96853 Evaluate Apache Traffic Server | |||
| Declined | BBlack | T96851 Evaluate limited caching inside nginx | |||
| Restricted Task | |||||
| Resolved | BBlack | T96847 Refactor varnish puppet config | |||
| Declined | BBlack | T119396 Create globally-unique varnish cache cluster port/instancename mappings | |||
| Duplicate | None | T101339 Expand misc cluster into cache PoPs | |||
| Resolved | BBlack | T119394 Convert misc cluster to 2-layer |
Event Timeline
Comment Actions
Change 255108 had a related patch set uploaded (by BBlack):
misc-cluster 2layer refactor, step 1/3
Comment Actions
Change 255109 had a related patch set uploaded (by BBlack):
misc-cluster 2layer refactor, step 2/3
Comment Actions
Change 255110 had a related patch set uploaded (by BBlack):
misc-cluster 2layer refactor, step 3/3
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The misc cluster is now in a 2-layer multi-DC configuration (including ipsec), but with a few missing pieces to go for full functionality:
- Defining dynamic_directors stuff for depooling varnish backends (right now it's static)
- Setting up new IPs, GeoDNS, and LVS stuff to actually route users to the other datacenters for termination
Comment Actions
Change 255375 had a related patch set uploaded (by BBlack):
cache_misc - Add full set of services to conftool data
Comment Actions
Change 255376 had a related patch set uploaded (by BBlack):
cache_misc - define global IPs in LVS config data
Comment Actions
Change 255377 had a related patch set uploaded (by BBlack):
cache_misc - set up LVS services at all DCs
Comment Actions
Change 255378 had a related patch set uploaded (by BBlack):
cache_misc - switch to conftool dynamic directors
Comment Actions
Change 255375 merged by BBlack:
cache_misc - Add full set of services to conftool data
Comment Actions
Change 255383 had a related patch set uploaded (by BBlack):
cache_misc: add LVS service IPs to balancers themselves
Comment Actions
Change 255383 merged by BBlack:
cache_misc: add LVS service IPs to balancers themselves
Comment Actions
Change 255384 had a related patch set uploaded (by BBlack):
cache_misc: fix various icinga monitoring
Comment Actions
Ok at this point everything is ready and configured correctly, except the final switch hasn't been flipped to send users to the geographic endpoints, which is: https://gerrit.wikimedia.org/r/#/c/255331/
Comment Actions
Change 256704 had a related patch set uploaded (by BBlack):
cache_misc: move pass-blocks to layer-common code