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98 Commits
Author SHA1 Message Date
Adam Harrison e9081c6607 Allow specification of initial IPAM ring via --ipam-seed 2016-03-21 09:49:54 +00:00
Matthias Radestock 9f10b21c9c use Space.NumFreeAddresses for calculating transferred ip count 
...rather than Space.NumFreeAddressesInRange; we don't care about the
universe.

Alternatively we could make Space.AddRanges return the count. But
AddRanges doesn't know whether the ranges overlap with existing free
space - that is only guaranteed by the context - so would have to do
much the same before/after calculation.

Another alternative would be to add the range sizes in
AdminTakeoverRanges. But that is more code and less clear.
 2016-03-19 14:41:36 +00:00
Matthias Radestock 62d823850c make rmpeer report on size of transferred space, and not fail 
Closes #2058.
 2016-03-19 14:40:26 +00:00
Matthias Radestock c48eefa82d refactor(ish): extract allocator logging commonality 
and add warnf
 2016-03-19 14:32:54 +00:00
Matthias Radestock 65eff683dd Merge branch '1.4' 2016-03-19 14:30:38 +00:00
Matthias Radestock f42e275884 broadcast ipam ring update after rmpeer 
So that other peers notice the change more promptly.

Fixes #2068.
 2016-03-19 13:57:20 +00:00
Bryan Boreham f11314ed3e Introduce 'Count' type to avoid abusing 'Offset' 2016-03-19 11:47:34 +00:00
Adam Harrison 2eeb754454 refactor: Introduce IPAM config object 2016-03-14 17:41:20 +00:00
Bryan Boreham a57335738d Don't do unnecessary clock skew check in IPAM 2016-03-10 11:41:47 +00:00
Adam Harrison 6584df274e Implement weave consense 2016-03-03 18:52:09 +00:00
Adam Harrison b84ef98de8 Support non-electing peers via --observer 2016-03-03 17:48:50 +00:00
Bryan Boreham 73f1a04d5f Deal in subnets, not ranges, when requesting address allocation 2016-03-02 17:21:51 -08:00
Bryan Boreham b76e2a87cf Store address+subnet prefix for 'owned' addresses 2016-03-02 17:21:24 -08:00
Bryan Boreham b6eec08247 Return all applicable results from Lookup 
and stop erroring on Lookup not found; just return a blank result
 2016-03-02 17:01:12 -08:00
Bryan Boreham 95cbc8940e Sync 'owned' data with existing containers at startup 2016-03-02 11:35:24 -08:00
Bryan Boreham f29716387f Persist the 'owned' address set 2016-03-02 11:35:24 -08:00
Bryan Boreham 7453c7a5dd Merge branch '1.4' 2016-02-29 08:22:22 -08:00
Adam Harrison bceabe32a2 Try all pending allocations 
We can have outstanding allocations for different ranges owned by
different peers, so we should not short circuit after the first space
request.
 2016-02-25 14:56:33 +00:00
Bryan Boreham 546f9592f9 Hard-fail on persistence errors, otherwise the network can get confused on a restart. 
Create `Allocator.fatalf()`, for consistency
 2016-02-12 18:12:26 +00:00
Bryan Boreham 06f3793f05 Remove persisted IPAM ring data on peerName change 2016-02-12 18:12:26 +00:00
Bryan Boreham f396c60402 Persist the Ring 2016-02-12 18:12:26 +00:00
Bryan Boreham ad036499eb Add db infra to IPAM 2016-02-12 18:12:26 +00:00
Bryan Boreham 07b79568dd Resurrect apparently-dead containers on ContainerStarted event 2016-02-04 13:49:43 +00:00
Matthias Radestock 6bebce0b5a tiny refactor 2016-02-02 14:03:01 +00:00
Bryan Boreham 71da517e88 Refactor to collect all code that touches alloc.owned 2016-02-02 13:57:12 +00:00
Bryan Boreham 952e9de265 Remove superfluous line and fix comment typo 2016-01-25 18:05:43 +00:00
Peter Bourgon e27b320ede Update import location for mesh 2016-01-15 15:57:01 +01:00
Bryan Boreham e468399616 Extend the timeout for dead containers to 30 seconds, 
but remove them if they are destroyed, to reduce starvation
when users are creating and destroying containers quickly.
 2016-01-12 14:38:44 +00:00
Bryan Boreham b2b293a8ee Added 'ContainerDestroyed()' callback from docker client 2016-01-12 14:38:44 +00:00
Bryan Boreham f84b933d7c Leave container allocations for a time after death 
so they will be reclaimed if the container is restarted.
Still cancel pending operations immediately a container dies
 2016-01-12 14:38:44 +00:00
Bryan Boreham 4672e9ec1f Generalise ticker so we can use it for more than paxos, 
and call tryPendingOps() from it so we eventually re-try operations
 2016-01-12 14:38:44 +00:00
Matthias Radestock 274265f001 typo 2015-12-21 17:03:03 +00:00
Matthias Radestock 3cd199e852 make GossipData immutable 
The same piece of GossipData can be shared and subject to different
Merge operations. We either need to copy the data when we share it, or
create copies on modification, i.e. copy-on-write.

We choose the latter, since it is more efficient and there is just one
mutating operation.

Fixes #1697.
 2015-11-17 20:13:46 +00:00
Matthias Radestock dc9f8762ca move generic communication substrate into its own 'mesh' package 
This is mostly a matter of moving some files, changing package names,
changing some imports, and changing some type references.

We duplicate the odd constant & global var, and the intmac/macint
functions, since neither 'router' or 'mesh' nor, really,' common' are
a natural home for them.
 2015-11-09 16:37:39 +00:00
Matthias Radestock 8bd77c0d47 refactor: get rid of router/utils.go 
most functions end up in other files in the router package, but a few
land in common.
 2015-11-07 15:45:29 +00:00
Bryan Boreham 67e9310cc1 Review feedback 2015-11-03 17:01:27 +00:00
Bryan Boreham 8742957f75 Tweak naming to be closer to code changes in nameserver 2015-11-03 14:15:49 +00:00
Bryan Boreham ace372cfc6 More extensive choice of transferee 2015-11-03 12:03:28 +00:00
Bryan Boreham b3cda39b0b Let IPAM pick any peer we know about to transfer ownership to, when shutting down 2015-11-02 18:34:58 +00:00
Tom Wilkie 33085e3798 Merge pull request #1499 from weaveworks/1463-ipam-seed-mismatch 
detect when IPAM has been seeded by different peers
 2015-10-09 14:46:55 +01:00
Matthias Radestock 751ccd02f6 don't stall in ipam on early container death 
When a container died before we got into the allocation code (inside
the allocator run loop) we would not cancel the allocation since the
container death event will have been processed by the allocator before
it had any knowledge of the container.

The fix is to move the container-aliveness check inside the allocation
code. That way we still detect the death even if the event has already
flown past.

We only need to perform the check once, since any subsequent death
will result in an event that is processed by the allocator when it has
recorded the container in its state.

Fixes #1459.
 2015-10-07 15:20:22 +01:00
Matthias Radestock 8aaf4cfaf0 include nicknames in error message, if we have them 2015-10-06 14:41:41 +01:00
Matthias Radestock 5a45471c68 more readable errors on ring.Merge 
There are three significant changes here:

- rewrite ring.ErrDifferentSeeds errors
- remove the pre-checking of ranges and instead rewrite
  ring.ErrDifferentRange errors
- don't pruneNicknames() and signal ringUpdated() when there was an
  error

We don't rewrite other errors since our current belief is that only
ErrDifferentSeeds and ErrDifferentRange can arise from user error.
 2015-10-06 14:20:42 +01:00
Matthias Radestock 0bdc84d42a Merge branch '1.1' 2015-09-22 16:28:05 +01:00
Matthias Radestock 7f74ae7912 Merge pull request #1426 from weaveworks/1418-clean-cancel 
Handle cancelled allocation in 'weave attach'

Fixes #1418.
 2015-09-22 16:27:27 +01:00
Bryan Boreham 98b80c59d9 Detect cancelled allocation more cleanly 
to avoid the weave script trying to parse an error message as a CIDR
 2015-09-16 14:14:40 +01:00
Matthias Radestock 14dde9ec32 Merge branch '1.1' 2015-09-15 16:47:05 +01:00
Bryan Boreham d55c68c248 Review feedback 2015-09-15 16:18:37 +01:00
Bryan Boreham a7e0f03647 Use explicit index into operations slice in cancelOpsFor() 
to avoid mis-indexing when more than one op is removed
 2015-09-14 17:02:35 +01:00
Bryan Boreham 81e8ba223f Do network attach on docker event rather than intercepting start and restart commands. 
This means it also works when the docker daemon restarts a container.
 2015-09-01 17:48:12 +01:00