Tessera Beta v0.2.0

What's Changed

API

• Repo renamed to tessera, and imports updated.
  • Follow rename to Tessera by @AlCutter in #645
  • Tidy up remaining references to Trillian Tessera by @AlCutter in #669
• Tidying and unexporting of things which can be hidden away.
  • NewProofBuilder operates in terms of tree size by @AlCutter in #622
  • Moved Follower into stream package by @mhutchinson in #649
• Improvements and fixes
  • Simpler stream by @AlCutter in #656
  • [API] More API tidying and hiding by @mhutchinson in #657
  • Correct LogReader interface by @AlCutter in #663
  • Add http_timeout flag to hammer by @roger2hk in #673

Features and experiments

• fsck tool for checking self-consistency/integrity of tlog-tiles logs via HTTP
  • Add a simple tlog-files fsck tool by @AlCutter in #644
  • Add bearer token support to fsck by @AlCutter in #665
• An experimental/proof-of-concept mirroring tool has been added, currently only supports local filesystem as a destination.
  • [Mirror] Add outline of experimental mirror tool by @AlCutter in #626
  • [Mirror] Copy entries too by @AlCutter in #627
  • [Mirror] Support mirroring new growth by @AlCutter in #628
• Allow witness signature collection to fail open by @AlCutter in #634
• Make client code fallback to requesting full tiles by @AlCutter in #672

Bugs squashed

• Fix missing wrapped os.ErrNotExist for http.StatusNotFound case in HTTPFetcher by @roger2hk in #635
• Remove redundant break by @roger2hk in #637
• Fix bug in EntriesPathForLogIndex by @phbnf in #639
• [GCP] Fix unexpected otel err during shutdown by @roger2hk in #643
• Prevent multiple concurrent checkpoint update attempts in GCP and AWS by @AlCutter in #646
• bubble up abort other spanner errors to enable retries by @bobcallaway in #651
• Fix checkpoint publish in AWS & GCP by @AlCutter in #659
• [Hammer] Use correct bearer token for writes by @AlCutter in #661

Docs improvements / fixes

• Replace all Url with URL by @roger2hk in #636
• Fix inconsistency between doc comments and actual type/function names by @roger2hk in #638
• Fix fsck README by @AlCutter in #648
• Update GCP/AWS READMEs with new table info by @AlCutter in #664
• Add missing ) in README.md by @roger2hk in #674

Other

• Make hammer/loadtest agnostic of transport by @AlCutter in #647
• [Hammer] Make failed leaves be stickier by @mhutchinson in #650

Deps

• Bump the all-go-deps group with 4 updates by @dependabot in #623
• Bump github/codeql-action from 3.28.15 to 3.28.16 in the all-gha-deps group by @dependabot in #624
• Bump the all-go-deps group with 5 updates by @dependabot in #631
• Bump linter by @mhutchinson in #632
• Bump the all-gha-deps group across 1 directory with 3 updates by @dependabot in #633
• Bump actions/setup-go from 5.4.0 to 5.5.0 in the all-gha-deps group by @dependabot in #640
• Bump the all-go-deps group across 1 directory with 3 updates by @dependabot in #642
• Bump the all-gha-deps group with 2 updates by @dependabot in #653
• Bump the all-go-deps group with 3 updates by @dependabot in #654
• Bump the all-go-deps group with 14 updates by @dependabot in #667

Full Changelog: v0.1.2...v0.2.0

Tessera alpha3 v0.1.2

What's Changed

Highlights

Along with many internal fixes and improvements, the following user facing changes were made:

• Bumped to go1.24
• OpenTelemetry metrics and tracing support added
• AWS and POSIX antispam support added alongside existing GCP support
• Documentation improvements
• AWS and GCP support optional bucket prefixes now (for hosting log resources from multiple logs in the same bucket)

PRs

• Witnessing: Prevent the log from updating to an invalid size by @haydentherapper in #509
• Return current state of tree even if no work done by @AlCutter in #540
• Fix AWS doc comment typo by @roger2hk in #543
• Move migration into lifecycle by @AlCutter in #542
• [GCP] Add antispam tunables by @AlCutter in #545
• [Docs] Fix deprecated flag by @mhutchinson in #546
• AWS migration target support by @mhutchinson in #541
• [AWS] Use library to create DNS string by @mhutchinson in #547
• Add richer Follower interface enabling clean shutdown & stats by @AlCutter in #544
• Antispam with lookup experiment by @AlCutter in #508
• Remove id column from IDSeq by @AlCutter in #548
• Fix comment by @AlCutter in #549
• Standardize logging when publishing a checkpoint by @haydentherapper in #555
• Add GCP antispam test by @AlCutter in #556
• Bump to Go 1.24 by @AlCutter in #557
• Don't fail PR check for benchmarking by @AlCutter in #560
• Implement StreamEntries on AWS and POSIX by @AlCutter in #558
• Add support for ephemeral testing logs, and use it in GCP antispam test. by @AlCutter in #559
• [AWS] Antispam by @mhutchinson in #568
• [AWS] Set cache headers for artifacts in s3 by @mhutchinson in #571
• [Antispam] Faster tests by @mhutchinson in #573
• Move witnessing fully into lifecycle layer by @AlCutter in #578
• Add antispam overview by @AlCutter in #579
• Add initial OTel instrumentation to Tessera by @AlCutter in #580
• Add metrics around integration by @AlCutter in #581
• GCP: push metrics & traces natively by @AlCutter in #584
• [Docs] Improve docs for common lifecycles by @mhutchinson in #585
• Add follower metrics by @AlCutter in #587
• [Docs] Freezing/Deleting/Sharded logs by @mhutchinson in #590
• AWS OTel support by @AlCutter in #591
• GCP Add OTel automatic resource detection by @AlCutter in #593
• Set duplicate and pushback attributes on all add metric increments by @AlCutter in #598
• [AWS] Tune conformance binary for lower latency by @AlCutter in #595
• [GCP] Tune conformance for lower latency by @AlCutter in #594
• [AWS Antispam] End-to-end antispam for conformance by @mhutchinson in #592
• Disable antispam in AWS CI by @mhutchinson in #599
• Add NextIndex metric by @AlCutter in #600
• [Terraform] Add _db suffix to create_antispam. by @mhutchinson in #601
• Update freezing docs by @AlCutter in #602
• Improve roadmap in main README by @mhutchinson in #603
• Adjust antispam defaults, and use them in conformance bins by @AlCutter in #605
• Make pushback sources clearer in logging by @AlCutter in #604
• Add experimental Badger antispam for POSIX by @AlCutter in #606
• Factor-out EntryStreamReader by @AlCutter in #607
• Add support for bucket prefixes in AWS and GCP drivers by @AlCutter in #608
• Slight API pruning and modernization by @mhutchinson in #609
• Don't cache errors in InMemoryDedup by @AlCutter in #611
• Fix broken GCP antispam variable name by @AlCutter in #612
• Use BucketPrefix by @AlCutter in #613
• Delete unused kms key version id by @phbnf in #614
• Use BigEndian in badger by @AlCutter in #618
• [POSIX] Ensure data is durably written to disk by @AlCutter in #619
• [POSIX] Drop idempotent writes by @AlCutter in #620
• Update POSIX perf docs by @AlCutter in #621

Deps

• Bump the all-gha-deps group with 2 updates by @dependabot in #539
• Bump the all-go-deps group with 3 updates by @dependabot in #538
• Bump the all-go-deps group with 4 updates by @dependabot in #551
• Update lifecycle description doc by @AlCutter in #550
• Bump to golangci-lint@2.0.1 and fix new lint issues by @AlCutter in #553
• Bump the all-gha-deps group across 1 directory with 3 updates by @dependabot in #554
• Bump the all-go-deps group with 6 updates by @dependabot in #569
• Fixed go.mod file to remove exclude by @mhutchinson in #572
• Bump github/codeql-action from 3.28.13 to 3.28.14 in the all-gha-deps group by @dependabot in #583
• Bump the all-go-deps group across 1 directory with 9 updates by @dependabot in #586
• Bump the all-go-deps group with 4 updates by @dependabot in #597
• Bump github/codeql-action from 3.28.14 to 3.28.15 in the all-gha-deps group by @dependabot in #596
• Bump google.golang.org/grpc from 1.71.1 to 1.72.0 in the all-go-deps group by @dependabot in #615
• Bump github.com/go-jose/go-jose/v4 from 4.0.4 to 4.0.5 in the go_modules group by @dependabot in #616
• Bump format dep by @AlCutter in #617

Full Changelog: v0.1.1...v0.1.2

Tessera alpha2 v0.1.1

This is the second alpha release of Tessera. There have been a number of API changes and feature additions since the original alpha release.

Take a look at the main README for information about how to get started using it, and let us know in the slack channel how you get on.

What's Changed

• Replace os.IsNotExist(err) with errors.Is(err, fs.ErrNotExist) by @roger2hk in #396
• Added and updated benchmarks by @mhutchinson in #397
• Storage API uses partial width rather than logSize by @AlCutter in #393
• Storage implementations enforce minimum checkpoint intervals by @AlCutter in #394
• Just use layout.PartialTileSize by @AlCutter in #401
• [GCP] Add CacheControl headers by @AlCutter in #400
• Add test for GetEntryBundle addressing by @AlCutter in #403
• [MySQL] complete entry bundle implementation by @mhutchinson in #398
• Set up benchmark action by @mhutchinson in #405
• Explain how to run terragrunt destroy by @phbnf in #404
• Remove AWS dsn from error log to avoid password leak by @roger2hk in #402
• Fix go-routine typo in AWS by @roger2hk in #407
• Update log message and comment in POSIX by @roger2hk in #408
• Fix POSIX full-bundle handling by @AlCutter in #406
• Bump the all-go-deps group with 7 updates by @dependabot in #411
• Bump the all-gha-deps group with 2 updates by @dependabot in #410
• Replace 256 with layout.TileWidth/layout.EntryBundleWidth by @roger2hk in #409
• [GitHub Workflows] Give names to steps by @mhutchinson in #412
• [Benchmarks] Comment on PRs with benchmark scores by @mhutchinson in #413
• Add cache headers to POSIX version too by @lapo-luchini in #416
• pin actions and reduce unnecessary perms & creds by @bobcallaway in #418
• Bump golang.org/x/crypto from 0.30.0 to 0.31.0 in the go_modules group by @dependabot in #415
• Remove public from mysql conformance cache-control by @AlCutter in #417
• Added link to benchmarks by @mhutchinson in #419
• Fix CT serialisation by @AlCutter in #421
• [Hammer] Throttle has mutex guarding changes by @mhutchinson in #424
• Bump github/codeql-action from 3.27.6 to 3.27.9 in the all-gha-deps group by @dependabot in #422
• Rollback #421 and add some comments by @AlCutter in #426
• Open AWS storage to being used with non-AWS MySQL and S3 services by @AlCutter in #428
• [AWS] Fix s3.NewFromConfig panic when running on AWS. by @AlCutter in #429
• Fix token permission code scanning alerts by @roger2hk in #425
• Bump the all-gha-deps group with 2 updates by @dependabot in #430
• Bump the all-go-deps group across 1 directory with 7 updates by @dependabot in #432
• Bump the all-go-deps group with 2 updates by @dependabot in #434
• [Architecture] Switch over to a common impl with separate drivers by @mhutchinson in #433
• Bumped grpc deps by @mhutchinson in #435
• Integrate operates in terms of hashes by @AlCutter in #437
• [POSIX] Fixes & tweaks by @AlCutter in #439
• Extract tighter-scoped integrate funcs in storage impls by @AlCutter in #440
• [Docs] Glanceable roadmap features in main README by @mhutchinson in #442
• Bump workflows in prep for Go 1.23 by @AlCutter in #444
• Bump to Go 1.23 by @AlCutter in #443
• Add codeowners so that PRs get auto-assigned by @patflynn in #427
• Bump the all-go-deps group with 8 updates by @dependabot in #445
• Experimental migration support for POSIX by @AlCutter in #441
• Bump the all-gha-deps group with 2 updates by @dependabot in #446
• GCP Migrate tool by @AlCutter in #447
• [Hammer] Refactor to allow code reuse with CT by @mhutchinson in #448
• Add schema compatibility version checking to GCP by @AlCutter in #451
• Rando suffix for CI by @AlCutter in #452
• Output conformance bucket and use in GCB by @AlCutter in #453
• Rename GCB trigger to better match the intended purpose by @AlCutter in #454
• Bump the all-go-deps group with 5 updates by @dependabot in #455
• Bump golangci/golangci-lint-action from 6.1.1 to 6.2.0 in the all-gha-deps group by @dependabot in #456
• [Hammer] Moved more common functionality into loadtest package by @mhutchinson in #449
• [POSIX] Ensure compatibility version by @mhutchinson in #457
• [MySQL] Check that the DB schema is compatible by @mhutchinson in #458
• [Cleanup] Rename benchmark actions by @mhutchinson in #460
• [AWS] Check compatibility version of the DB schema on startup by @mhutchinson in #459
• Fix broken decorators by @AlCutter in #462
• Bump the all-go-deps group with 7 updates by @dependabot in #465
• Bump the all-gha-deps group across 1 directory with 2 updates by @dependabot in #466
• Bump the all-go-deps group with 6 updates by @dependabot in #468
• Bump the all-gha-deps group with 3 updates by @dependabot in #467
• [GCP] Factor out DB init for later reuse by @AlCutter in #477
• Bump the all-gha-deps group with 2 updates by @dependabot in #478
• Bump the all-go-deps group with 9 updates by @dependabot in #479
• Replace GCP dedup with follower-style implementation by @AlCutter in #475
• Tighten up POSIX file operations by @AlCutter in #481
• [API] Refactoring to make appender API future-proof by @mhutchinson in #461
• Migrate storage implementations to Appender lifecycle model by @AlCutter in #482
• Update CT support to match lifecycle change by @AlCutter in #485
• Lock initialise to prevent concurrent initialisation by @haydentherapper in #480
• Fix missing error message for errors occuring every second by @roger2hk in #487
• Bump the all-gha-deps group with 2 updates by @dependabot in #489
• Bump the all-go-deps group with 2 updates by @dependabot in #490
• Defined witness policy configuration by @mhutchinson in https://...

Tessera Alpha v0.1.0

This is the initial alpha release of Tessera!
Take a look at the main README for information about how to get started using it, and let us know in the slack channel how you get on.