v0.0.21

= Features =

• Add /healthz endpoint that returns 500 when some watch stream is stale. (#165)
  • Set Content-Length when writing responses to close client connections. (#168)
  • Send a header to signal that connections should be closed. (#170)

= Bug fixes =

• Fix crashloop when the agent recovers after a healthcheck failure. (#173)
  • Allow configuring the host address binding for the local resource API. (#171)

= Unit tests =

= Miscellaneous =

• Bump version to 0.0.21-1. (#169)
• Update metadata map only if the metadata is not empty. (#166)

v0.0.20

= Features =

• Better support for 64-bit integers in JSON (precision, serialization). (#133)
• Add entrypoint.sh to abstract around metadatad binary. (#40)
  • The entrypoint script uses bash expressions, so should be run with /bin/bash. (#161)
  • Copy entrypoint.sh to the docker working directory. (#163)
• Shut down gracefully on SIGTERM. (#136)

= Bug fixes =

• Catch and log NonRetriableError instead of letting it propagate. (#145)
• Don't update owners cache until the value is available (fixes segfault). (#160)
• Add missing ca-certificates dependency in Xenial. (#140)
• Fix the use of defaults in config parsing. (#138)
• MacOS build fix for openssl libraries. (#137)
• Bump cpp-netlib to the latest (ed6ff63a24df3fe9d7f9eda21dc2b0f6295ab5c7) to fix a build issue. (#150)
• In configuration.cc, change LOG(DEBUG) to std::cout. (#144)

= Unit tests =

• Add unit tests for credentials files. (#125)
• Api server test for dispatch operator; fix parallel builds. (#128)
• Add test for GetPodAndContainerMetadata (#130)
• Add unit tests for environment with fake HTTP server. (#139)
• Add more tests for environment.cc, for reading values from both config or metadata server. (#143)

= Miscellaneous =

• Bump version to 0.0.20-2. (#162)
• Bump version to 0.0.20-1. (#157)
• ValidateConfiguration cleanup. (#134, #135)

v0.0.19

= Features =

• Add support for providing command line options. (#108)
• Disable Docker polling and Kubernetes watch by default. (#113)
  • Fix default value tests after #113. (#117)
• Add streaming JSON parsing. (#106)
  • Use upstream chunked encoding processing with the streaming JSON parser. (#110)
  • Streaming JSON parsing cleanup. (#115)
• Add support for collecting services. (#112)
  • Fix merge conflict in kubernetes_unittest. (#126)

= Bug fixes =

• Bump the GCE metadata server timeout to 2s. (#114)
• Removed spurious line (#121)
• Split the metadata API request when it hits a limit by count or byte size (#129)
• Add ca-certificates as a runtime dependency to resolve ssl issues. (#131)
• Remove a log message that was trying to print a ResourceMetadata object (#132)

= Unit tests =

• Unit tests for MetadataStore (#101)
• Add test for GetNodeMetadata in kubernetes (#102)
• Add JSON Clone() Is() As() testing. (#104)
• Unittests for InstanceMonitoredResource and InstanceResourceMetadata (#105)
• Added test for ComputePodAssociations (#109)
• Unittests for inherited callbacks and configuration validator in updater.h (#111)
• Added GetPodMetadata unit test (#118)
• Add GetContainerMetadata test. (#119)
• Added unit test for GetLegacyResource (#120)

= Miscellaneous =

• Bump version to 0.0.19-1. (#116)
• Allow supplying callbacks for specific endpoints in the API server. (#93)
• Factor out dependencies in test/Makefile. (#107)
• Update a log from error to debug. (#124)

v0.0.18

= Features =

• Add support for cluster-level queries for nodes and unscheduled pods. (#73)
• Add a User-Agent header to metadata API requests; allow overriding via config; add --version argument. (#84)
• Add file health check support (#85)
  • Add an explicit dependency on libboost-filesystem. (#98)
• Disable Kubernetes polling by default (only use watch). (#60)

= Bug fixes =

• Explicitly add the CA certificate when connecting to the Kubernetes master. (#70)
• Fix parsing of fractional seconds. (#65)
• Guard access to containerStatuses by checking if the key exists. (#79)
• Remove pod startTime, as it is causing exceptions and is not used. (#81)
• Update the FindTopLevelOwner function to extract only controllers. (#95)

= Unit tests =

• Add the first unit test (format) (#53)
• Base64 unit tests (#71)
• Support configuration testing (#80)
• Added basic resource unittests (#86)
• Add constructor that parses configuration to support testing. (#88)
• Add JSON unit tests. (#92)

= Miscellaneous =

• Bump version to 0.0.18-1. (#103)
• Add instructions for building on Debian 9. (#68)
• Move all time-related functionality into the time library; ensure high-precision timestamp representation. (#75)
• Update cpp-netlib to the latest (540ed7622be3f9534709036522f86bde1e84829f). (#78)
  • Update responses to include Content-Type headers and return JSON for 404s. (#99)
• Factor MetadataStore, MetadataReporter, and MetadataAgent into their own files. (#87)
• Add a LookupMetadata function to the metadata store. (#90)
• Rename MetadataAgentConfiguration to Configuration (#91)
• Temporarily disable Ubuntu Trusty instructions. (#97)
• Temporarily disable CentOS 7 instructions. (#96)
• Fix recursive make. (#64)
• Ignore dirty submodules. (#67)
• Turn off throw() warnings in GCC 7+. (#72)
  • Suppress GCC 7+ warnings in test builds. (#94)
• Pull out the body callback, so that only the chunk assembling code is in Watcher. (#66)
• Replace all std::bind instances with lambda expressions. (#83)
• Remove stale (and commented out) includes of config.h. (#89)
• Fix up gitdir pointers in submodules on broken git versions. (#82)

v0.0.17

• Add the full instance monitored resource to associations. (#52)
• Explicitly list the submodules during init and deinit. (#54)
• Remove "Name" postfix in the local resource ID for consistency. (#56)
• Add implicit instance resource mapping. (#55)
  • Turn MetadataApiResourceTypeSeparator and MetadataIngestionRawContentVersion into configuration options.
• Add instance association to Docker containers. (#59)
• Handle error response codes to HTTP requests. (#61)
• Retrieve cluster location from metadata attributes, rather than using the instance zone. (#57)
• Handle deletion events from watch and purge deleted entries. (#62)
• Be more robust in handling broken chunked encoding. (#58)
  • Ignore the rest of the streaming input when an error is encountered.
• Update maintainer name and email.
• Add validation to only start updaters if they're configured properly. (#63)

v0.0.16

Remove node_name from k8s_pod and k8s_container monitored resources. (#50)
Restore container_id local resource ID when present. (#51)

v0.0.15

The agent will no longer fail on containers that are not running. (#49)
Pods without labels are no longer causing the agent to fail. (#48)
Issue with container spec / status order mismatch has been resolved. (#47)
Update the default Kubernetes master endpoint to allow the agent to be run in any Kubernetes namespace. (#41)
The local resource ID for pods by ID has been updated to no longer include the namespace name, as it's redundant. (#42)

v0.0.14

Improve synchronization when updating internal data structures. (#37)
Add support for command-line options and guard verbose logging with an option. (#36)
Miscellaneous fixes to the JSON library and cleanup. (#43)
Owner information is now memoized to minimize calls to the master. (#46)
Improve internal resource storage library. (#44)
Enable watching for Kubernetes updates instead of polling the master. (#45)

v0.0.13

Make the credentials file optional. (#30)
Allow generating the docker image via make. (#31)
Rename primaryController* to topLevelController*. (#32)

v0.0.12

Fix build error with gcc5 and add endpoint logging. (#24)
Implement new Kubernetes resources and metadata. (#25)
Support building on MacOS. (#26)