open-policy-agent/opa

Fixes

• Add show debug command to REPL (#750)

Miscellaneous

• Add glob built-ins for easier path matching (thanks @aeneasr)
• Add support for specifying services as object

Major Features

• Wasm compiler. This release adds initial/experimental support for
  compiling Rego policies into Wasm executables. Wasm executables can be loaded
  and executed in compatible Wasm runtimes like V8 (nodejs). You can try this
  out by running opa build.

• Data mocking. This release adds support for replacing/mocking the data
  document using the with keyword. In the past, with only supported the
  input document. This made it tricky to test context-dependent policies. With
  the new with keyword support, it's easier to write tests against contextual
  policies.

• Negation Optimization. This release includes an optimization in partial
  evaluation for dealing with negated statements (not keyword). In the past,
  OPA would generate a support rule for negated statements. This is harder for
  clients to consume and not readily optimized. The optimization computes the
  necessary cross-product of the negated query and inlines it into the caller.
  This leads to simpler partial evaluation results that are readily optimized,
  translated into other query languages (e.g., SQL and Elasticsearch),
  or compiled into Wasm.

Fixes

• Add builtin to verify and decode JWT (#884)
• Add GoDoc sample for using rego.Tracer (#1002)
• Add built-in function to get runtime info (#420)
• Add support for YAML encoded input values (#290)
• Add support for client certificates (#684)
• Add support for non-zero exit code in eval subcommand (#981)
• Fix == rewriting on embedded terms (#995)
• Fix copy propagation panic in comprehensions (#1012)
• Implement regex.find_n (#1001) (#747)
• Improve with modifier target error (#343)
• Iterate over smaller set when intersecting (#531)
• Only write one trailing newline at end of file (#1032)
• Redirect HTTP requests with trailing slashes (#972)
• Update bundle reader to allow relative data.json (#1019)
• Expose version information via REST API (#277)

Miscellaneous

• Add default decision configuration
• Add extra helpers to loader result
• Add indentation to trace in failure output
• Add router option to the HTTP server
• Add support for headers in http.send (thanks @repenno)
• Deprecating --insecure-addr flag (thanks @repenno)
• Add POST v1/query API for large inputs (thanks @rite2nikhil)
• Remove heap allocations from AST set with open addressing
• Replace siphash with xxhash in AST
• Output traces on failures in verbose mode (thanks @srenatus)
• Rewrite duplicate test rule names (thanks @srenatus)

Miscellaneous Fixes

• Add option to enable http redirects (#921)
• Add copy propagation to support rules (#911)
• Add support for inlining negated expressions in partial evaluation
• Add deps subcommand to analyze base and virtual document dependencies
• Add partial evaluation support to eval subcommand
• Add net.cidr_overlap built-in function (thanks @aeneasr)
• Add regex.template_match built-in function (thanks @aeneasr)
• Add external security audit information (thanks @caniszczyk)
• Add initial support for plugin loading (thanks @vrnmthr)
• Fix copy propagator type assertion panic (#912)
• Fix panic in parser error detail construction (#948)
• Fix with value rewriting for call terms (#916)
• Fix coverage flag for test command (thanks @johscheuer)
• Fix compile operation timing in REPL
• Fix to indent 4 spaces instead of a tab (thanks @superbrothers)
• Fix REPL output in policy guide (thanks @ttripp)
• Multiple fixes in the Kubernetes admission controller tutorial (thanks @johscheuer)
• Improve formatting of empty ast.Body (#909)
• Improve Kubernetes admission control policy loading explanation (thanks @rite2nikhil)
• Update http.send test to work without internet access (#945)
• Update test runner to set Fail to true (#954)

Security Audit Fixes

• Improve token authentication docs and handler (#901)
• Link to security docs in tutorials (#917)
• Update bundle reader to cap buffer size (#920)
• Validate queries by checking unsafe builtins (#919)
• Fix XSS in debug page (#918)

Fixes

• Add io.jwt.verify_es256 and io.jwt.verify_ps256 built-in functions (@optnfast)
• Add array.concat built-in function (#851)
• Add support for command line bundle loading (#870)
• Add regex split built-in function
• Fix incorrect AST node in Index events (#859)
• Fix terraform tutorial type check errors (#888)
• Fix CONTRIBUTING.md to include sign-off step (@optnfast)
• Improve save set performance (#860)

Major Features

This release adds two major features to OPA itself.

• Query Profiler: the opa eval subcommand now supports a --profiler option
  to help policy authors understand the performance profile of their policies.
  Give it a shot and let us know if you find it helpful or if you find cases
  that could be improved!

• Compile API: OPA now exposes Partial Evaluation with first-class interfaces.
  In prior releases, Partial Evaluation was only used for optimizations
  purposes. As of v0.9, callers can use Partial Evaluation via HTTP or Golang to
  obtain conditional decisions that can be evaluated on the client-side.

Fixes

• Add ADOPTERS.md file (#691)
• Add time.weekday builtin (#789)
• Fix REPL output for multiple bool exprs (#850)
• Remove support rule if default value is not needed (#820)

Miscellaneous

Here is a shortlist of notable miscellaenous improvements.

• Add any/all built-in functions (thanks @vrnmthr)
• Add built-in function to parse Rego modules
• Add copy propagation optimization to partial evaluation output
• Add docs for exercising policies with test framework
• Add extra output formats to eval subcommand
• Add support for providing input to eval via stdin
• Improve parser error readability
• Improve rule index to support unknown values
• Rewrite == with = in compiler
• Update build to enable CGO

...along with 30+ other fixes and improvements.

Fixes

• Fix virtual document cache invalidation (#736)
• Fix partial cache invalidation for data changes (#589)
• Fix query to path conversion in decision logger (#783)
• Fix handling of pointers to structs (#722, thanks @srenatus)
• Improve sprintf number handling (#748)
• Reduce memory overhead of decision logs (#705)
• Set bundle status in case of HTTP 304 (#794)

Miscellaneous

• Add docs on best practices around identity
• Add built-in function to verify JWTs signed with HS246 (thanks @hbouvier)
• Add built-in function to URL encode objects (thanks @vrnmthr)
• Add query parameters to authorization policy input (#786)
• Add support for listening on a UNIX domain socket (#692, thanks @JAORMX)
• Add trace event for rule index lookups (#716)
• Add support for multiple listeners in server (thanks @JAORMX)
• Remove decision log buffer size limit by default
• Update codebase with various go-fmt/ineffassign/mispell fixes (thanks @srenatus)
• Update REPL command to set unknowns
• Update subcommands to support loader filter (#782)
• Update evaluator to cache storage reads
• Update object to keep track of groundness