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peering: peering partition failover fixes #16673

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Merged
ndhanushkodi merged 1 commit into from
Mar 20, 2023
Merged

peering: peering partition failover fixes #16673

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3 changes: 3 additions & 0 deletions .changelog/16673.txt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
```release-note:bug
peering: Fixes a bug where the importing partition was not added to peered failover targets, which causes issues when the importing partition is a non-default partition.
```
3 changes: 3 additions & 0 deletions agent/proxycfg/upstreams.go
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Expand Up @@ -470,6 +470,9 @@ func (s *handlerUpstreams) watchUpstreamTarget(ctx context.Context, snap *Config

if opts.peer != "" {
uid = NewUpstreamIDFromTargetID(opts.chainID)
// chainID has the partition stripped. However, when a target is in a cluster peer, the partition should be set
// to the local partition (i.e chain.Partition), since the peered target is imported into the local partition.
uid.OverridePartition(opts.entMeta.PartitionOrDefault())
correlationID = upstreamPeerWatchIDPrefix + uid.String()
}

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6 changes: 6 additions & 0 deletions agent/xds/clusters.go
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Expand Up @@ -1957,11 +1957,17 @@ func (s *ResourceGenerator) mapDiscoChainTargets(cfgSnap *proxycfg.ConfigSnapsho
}

if targetUID.Peer != "" {
// targetID has the partition stripped, so targetUID will not have a partition either. However,
// when a failover target is in a cluster peer, the partition should be set to the local partition (i.e
// chain.Partition), since the peered failover target is imported into the local partition.
targetUID.OverridePartition(chain.Partition)

tbs, _ := upstreamsSnapshot.UpstreamPeerTrustBundles.Get(targetUID.Peer)
rootPEMs = tbs.ConcatenatedRootPEMs()

peerMeta, found := upstreamsSnapshot.UpstreamPeerMeta(targetUID)
if !found {
s.Logger.Warn("failed to fetch upstream peering metadata", "target", targetUID)
continue
}
sni = peerMeta.PrimarySNI()
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