Update grafana/loki Docker tag to v2.8.0

This MR contains the following updates:

Package	Type	Update	Change
grafana/loki	ironbank-docker	minor	2.7.5 -> 2.8.0
grafana/loki		minor	2.7.5 -> 2.8.0
grafana/loki	stage	minor	2.7.5 -> 2.8.0

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Release Notes

grafana/loki

v2.8.0

Compare Source

Loki

Enhancements

• 8824 periklis: Expose optional label matcher for label values handler
• 8939 Suruthi-G-K: Loki: Add support for trusted profile authentication in COS client.
• 8852 wtchangdm: Loki: Add route_randomly to Redis options.
• 8848 dannykopping: Ruler: add configurable rule evaluation jitter.
• 8826 amankrsingh2000: Loki: Add support for IBM cloud object storage as storage client.
• 8752 chaudum: Add query fairness control across actors within a tenant to scheduler, which can be enabled by passing the X-Loki-Actor-Path header to the HTTP request of the query.
• 8786 DylanGuedes: Ingester: add new /ingester/prepare_shutdown endpoint.
• 8744 dannykopping: Ruler: remote rule evaluation.
• 8727 cstyan jeschkies: Propagate per-request limit header to querier.
• 8682 dannykopping: Add fetched chunk size distribution metric loki_chunk_fetcher_fetched_size_bytes.
• 8532 justcompile: Adds Storage Class option to S3 objects
• 7951 MichelHollands: Add a count template function to line_format and label_format.
• 7380 liguozhong: metrics query: range vector support streaming agg when no overlap.
• 7731 bitkill: Add healthchecks to the docker-compose example.
• 7759 kavirajk: Improve error message for loading config with ENV variables.
• 7785 dannykopping: Add query blocker for queries and rules.
• 7817 kavirajk: fix(memcached): panic on send on closed channel.
• 7916 ssncferreira: Add doc-generator tool to generate configuration flags documentation.
• 7964 slim-bean: Add a since query parameter to allow querying based on relative time.
• 7989 liguozhong: logql support sort and sort_desc.
• 7997 kavirajk: fix(promtail): Fix cri tags extra new lines when joining partial lines
• 7975 adityacs: Support drop labels in logql
• 7946 ashwanthgoli config: Add support for named stores
• 8027 kavirajk: chore(promtail): Make batchwait and batchsize config explicit with yaml tags
• 7978 chaudum: Shut down query frontend gracefully to allow inflight requests to complete.
• 8047 bboreham: Dashboards: add k8s resource requests to CPU and memory panels.
• 8061 kavirajk: Remove circle from Loki OSS
• 8092 dannykopping: add rule-based sharding to ruler.
• 8131 jeschkies: Compile Promtail ARM and ARM64 with journald support.
• 8212 kavirajk: ingester: Add ingester_memory_streams_labels_bytes metric for more visibility of size of metadata of in-memory streams.
• 8271 kavirajk: logql: Support urlencode and urldecode template functions
• 8259 mar4uk: Extract push.proto from the logproto package to the separate module.
• 7906 kavirajk: Add API endpoint that formats LogQL expressions and support new fmt subcommand in logcli to format LogQL query.
• 6675 btaani: Add logfmt expression parser for selective extraction of labels from logfmt formatted logs
• 8474 farodin91: Add support for short-lived S3 session tokens
• 8774 slim-bean: Add new logql template functions bytes, duration, unixEpochMillis, unixEpochNanos, toDateInZone, b64Enc, and b64Dec
• 8670 salvacorts Introduce two new limits to refuse log and metric queries that would read too much data.
• 8918 salvacorts Introduce limit to require at least a number label matchers on metric and log queries.
• 8909 salvacorts Requests to /loki/api/v1/index/stats are split in 24h intervals.

Fixes

• 7784 isodude: Fix default values of connect addresses for compactor and querier workers to work with IPv6.
• 7880 sandeepsukhani: consider range and offset in queries while looking for schema config for query sharding.
• 7937 ssncferreira: Deprecate CLI flag -ruler.wal-cleaer.period and replace it with -ruler.wal-cleaner.period.
• 7966 sandeepsukhani: Fix query-frontend request load balancing when using k8s service.
• 8251 sandeepsukhani index-store: fix indexing of chunks overlapping multiple schemas.
• 8151 sandeepsukhani fix log deletion with line filters.
• 8448 chaudum: Fix bug in LogQL parser that caused certain queries that contain a vector expression to fail.
• 8775 sandeepsukhani: index-gateway: fix failure in initializing index gateway when boltdb-shipper is not being used.
• 8448 sandeepsukhani: deletion: fix issue in processing delete requests with tsdb index
• 8753 slim-bean A zero value for retention_period will now disable retention.
• 8732 abaguas: azure: respect retry config before cancelling the context
• 8959 periklis: Align common instance_addr with memberlist advertise_addr

Changes

• 8315 thepalbi Relicense and export pkg/ingester WAL code to be used in Promtail's WAL.
• 8761 slim-bean Remove "subqueries" from the metrics.go log line and instead provide splits and shards

Build

Promtail

Enhancements

• 8231 CCOLLOT: Lambda-promtail: add support for AWS SQS message ingestion.
• 7619 cadrake: Add ability to pass query params to heroku drain targets for relabelling.
• 7973 chodges15: Add configuration to drop rate limited batches in Loki client and new metric label for drop reason.
• 8153 kavirajk: promtail: Add max-line-size limit to drop on client side
• 8096 kavirajk: doc(promtail): Doc about how log rotate works with promtail
• 8233 nicoche: promtail: Add max-line-size-truncate limit to truncate too long lines on client side
• 7462 MarNicGit: Allow excluding event message from Windows Event Log entries.
• 7597 redbaron: allow ratelimiting by label
• 3493 adityacs Support geoip stage.
• 8382 kelnage: Promtail: Add event log message stage

Fixes

• 8231 CCOLLOT: Lambda-promtail: fix flushing behavior of batches, leading to a significant increase in performance.

Changes

LogCLI

Enhancement

• 8413 chaudum: Try to load tenant-specific schemaconfig-{orgID}.yaml when using --remote-schema argument and fallback to global schemaconfig.yaml.
• 8537 jeschkies: Allow fetching all entries with --limit=0.

Fluent Bit

Loki Canary

Enhancements

• 8024 jijotj: Support passing loki address as environment variable

Jsonnet

• 7923 manohar-koukuntla: Add zone aware ingesters in jsonnet deployment
• 8855 JoaoBraveCoding: Add gRPC port to loki compactor mixin
• 8880 JoaoBraveCoding: Normalize headless service name for query-frontend/scheduler

Fixes

• 8247 Whyeasy fix usage of cluster label within Mixin.

Build

• 7938 ssncferreira: Add DroneCI pipeline step to validate configuration flags documentation generation.

Notes

Dependencies

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