June 2026 monthly summary focused on expanding cloud provider capabilities, stabilizing test/CI artifacts, and improving cross-cloud reliability. Major progress spans OpenTofu Terraform provider (AWS observability and CloudWatch integration), Harbor UI regional fixes, and Prometheus OCI discovery enhancements, underpinned by robust tests, docs, and codegen improvements. Key features delivered: - OpenTofu AWS: aws_observabilityadmin_s3_table_integration resource implemented (CRUD lifecycle, ACTIVE waiter, tag support); registered in observabilityadmin service package; acceptance test scaffolding; docs and tests updated. - OpenTofu AWS: aws_cloudwatch_log_s3_table_source_association resource implemented (CRUD with read-after-create for computed fields, ValidationException handling); registered in logs service package; test symbols exported; docs added. - OpenTofu: codegen and schema regeneration after make gen; service_package_gen and semgrep schema refreshed to align identity/test generation. - Documentation updates across S3 resources (docs fixes and per-PR changelog notes). - Harbor: fixed AWS China region endpoint domain suffix in Harbor UI; added tests validating China region endpoints. - Prometheus: OCI Discovery Core – native OCI compute service discovery added; OCI SD config/type registration and plugin integration; OCI Go SDK dependency added; tests (unit/integration) and cross-platform adjustments; extensive docs and fixtures; rate-limiting and stabilization improvements; key_passphrase and bad-auth test fixtures introduced. - OCI-related: config/docs updates, new OCI labels support (vnic-related) and key_passphrase_file handling; numerous test fixtures and stability improvements. Major bugs fixed: - S3TableIntegration: singleton ConflictException serialization and TestAcc wiring to serialize tests; ensured deterministic identity generation and test execution order. - S3TableSourceAssociation: test serialization fixes to run under TestAccLogs_serial; resolved concurrency issues due to singleton resource dependency. - Harbor China region endpoints: corrected domain suffix to amazonaws.com.cn for cn-north-1 and cn-northwest-1; added tests for verification. - OCI discovery: stability fixes including rate-limit handling, error prefix consistency, and VNIC labeling; refined refresh behavior on transient errors. Overall impact and accomplishments: - Improved reliability and regional coverage across AWS, Harbor, and OCI resources; added native OCI discovery to expand cloud resource visibility; stabilized tests and build tooling to reduce flakes; updated docs to reflect new capabilities and constraints; positioned teams to onboard cloud resources more quickly with accurate regional behavior. Technologies/skills demonstrated: - Go, Terraform provider development, OCI Go SDK, test automation (acctest, tests for serial execution), identity-driven test generation, code generation (service_package_gen), semgrep/schema maintenance, CI/test tuning, and documentation discipline.