Thanos - v0.27.0

What's Changed

#5339 Receive: When running in routerOnly mode, an interupt (SIGINT) will now exit the process.
#5357 Store: Fix groupcache handling by making sure slashes in the cache's key are not getting interpreted by the router anymore.
#5427 Receive: Fix Ketama hashring replication consistency. With the Ketama hashring, replication is currently handled by choosing subsequent nodes in the list of endpoints. This can lead to existing nodes getting more series when the hashring is scaled. This change makes replication to choose subsequent nodes from the hashring which should not create new series in old nodes when the hashring is scaled. Ketama hashring can be used by setting --receive.hashrings-algorithm=ketama.

#5337 Thanos Object Store: Add the prefix option to buckets.
#5409 S3: Add option to force DNS style lookup.
#5352 Cache: Add cache metrics to groupcache: thanos_cache_groupcache_bytes, thanos_cache_groupcache_evictions_total, thanos_cache_groupcache_items and thanos_cache_groupcache_max_bytes.
#5391 Receive: Add relabeling support with the flag --receive.relabel-config-file or alternatively --receive.relabel-config.
#5408 Receive: Add support for consistent hashrings. The flag --receive.hashrings-algorithm uses default hashmod but can also be set to ketama to leverage consistent hashrings. More technical information can be found here: https://dgryski.medium.com/consistent-hashing-algorithmic-tradeoffs-ef6b8e2fcae8.
#5402 Receive: Implement api/v1/status/tsdb.

#5410 Query: Close() after using query. This should reduce bumps in memory allocations.
#5417 Ruler: Breaking if you have not set this value (--eval-interval) yourself and rely on that value. :warning:. Change the default evaluation interval from 30s to 1 minute in order to be compliant with Prometheus alerting compliance specification: https://github.com/prometheus/compliance/blob/main/alert_generator/specification.md#executing-an-alerting-rule.

@jmjf made their first contribution in https://github.com/thanos-io/thanos/pull/5319
@fgouteroux made their first contribution in https://github.com/thanos-io/thanos/pull/5339
@heylongdacoder made their first contribution in https://github.com/thanos-io/thanos/pull/5324
@bisakhmondal made their first contribution in https://github.com/thanos-io/thanos/pull/5239
@djdongjin made their first contribution in https://github.com/thanos-io/thanos/pull/5383
@nicolastakashi made their first contribution in https://github.com/thanos-io/thanos/pull/5387
@roastiek made their first contribution in https://github.com/thanos-io/thanos/pull/5394
@B0go made their first contribution in https://github.com/thanos-io/thanos/pull/5392
@jademcosta made their first contribution in https://github.com/thanos-io/thanos/pull/5337
@dudaduarte made their first contribution in https://github.com/thanos-io/thanos/pull/5337
@Jakob3xD made their first contribution in https://github.com/thanos-io/thanos/pull/5409
@4xoc made their first contribution in https://github.com/thanos-io/thanos/pull/5153

Full Changelog: https://github.com/thanos-io/thanos/compare/v0.26.0...v0.27.0