inspektor-gadget/inspektor-gadget
Sep 2024 – Mar 2026
15 Months active
Languages Used
GoMarkdownYAMLCMakefile
Technical Skills
Configuration ManagementGoOpenTelemetryTemplate Processingbackend developmentAPI Development
Michael Friese
PROFILE
Michael Friese
Over 15 months, contributed to inspektor-gadget/inspektor-gadget by building features that advanced observability, system monitoring, and developer experience. Delivered process monitoring, network packet capture, and OpenTelemetry integration, using Go and C to implement backend logic, CLI tools, and eBPF-based data collection. Enhanced reliability through deterministic operator ordering, memory management fixes, and robust configuration management. Introduced metadata-driven parameter frameworks and logging operators with rotation, improving UI clarity and data retention. Addressed performance with optimized expression evaluation and metrics infrastructure. The work demonstrated depth in system programming, Kubernetes integration, and concurrent programming, resulting in scalable, secure, and maintainable tooling for cloud-native environments.
Overall Statistics
Feature vs Bugs
81%Features
Repository Contributions
66Total
Bugs
7
Commits
66
Features
29
Lines of code
11,549
Activity Months15
Your Network
4742 peopleSame Organization
@microsoft.com4683
GitOpsMember
Ananta GuptaMember
Abi GicicMember
Abigail HartmanMember
Abram SandersonMember
Adam EttenbergerMember
Alexandre GattikerMember
Ami HollanderMember
AndersMember
Shared Repositories
59
Work History
March 2026
1 Commits • 1 Features
Mar 1, 2026March 2026 summary for inspektor-gadget/inspektor-gadget: Delivered Gadget Logging Operator with log rotation, enabling flexible logging of gadget data to stdout, stderr, or files with lumberjack-based rotation. This feature improves observability, debugging capabilities, and data retention with minimal runtime overhead. Set groundwork for standardized gadget data logging across components and aligns with team goals for reliable telemetry.
1 Commits • 1 Features
Mar 1, 2026March 2026 summary for inspektor-gadget/inspektor-gadget: Delivered Gadget Logging Operator with log rotation, enabling flexible logging of gadget data to stdout, stderr, or files with lumberjack-based rotation. This feature improves observability, debugging capabilities, and data retention with minimal runtime overhead. Set groundwork for standardized gadget data logging across components and aligns with team goals for reliable telemetry.
March 2026
December 2025
1 Commits
Dec 1, 2025December 2025: Delivered a stabilization fix for container management in inspektor-gadget, addressing a memory leak and race conditions. By ensuring proper cleanup of detached containers and adding mutex protection for the attachedContainers map, the gadget now handles high container churn without unbounded memory growth. This directly improves reliability in production and reduces the risk of outages. The work aligns with existing KubeManager cleanup and demonstrates strong concurrency control, memory management, and code hygiene.
December 2025
1 Commits
Dec 1, 2025December 2025: Delivered a stabilization fix for container management in inspektor-gadget, addressing a memory leak and race conditions. By ensuring proper cleanup of detached containers and adding mutex protection for the attachedContainers map, the gadget now handles high container churn without unbounded memory growth. This directly improves reliability in production and reduces the risk of outages. The work aligns with existing KubeManager cleanup and demonstrates strong concurrency control, memory management, and code hygiene.
November 2025
2 Commits • 1 Features
Nov 1, 2025Month: 2025-11 | Focused on enabling metadata-driven UI clarity for parameters in inspektor-gadget/inspektor-gadget. Delivered a comprehensive Parameter Metadata Enhancement that adds titles, tags, and descriptive metadata to parameters, with special attention to well-known eBPF parameters, enabling richer UI surfaces and easier discoverability. No major bug fixes were reported in this period based on the provided data. Overall impact: Establishes a metadata-driven foundation that improves GUI clarity, reduces time to locate relevant parameters, and accelerates UI development and onboarding for users and operators. This work paves the way for future UI enhancements that rely on parameter metadata for filtering, grouping, and descriptions. Technologies/skills demonstrated: metadata framework design, cross-repo standardization, eBPF parameter domain knowledge, and disciplined git practices (tree-wide changes with signed-off commits).
2 Commits • 1 Features
Nov 1, 2025Month: 2025-11 | Focused on enabling metadata-driven UI clarity for parameters in inspektor-gadget/inspektor-gadget. Delivered a comprehensive Parameter Metadata Enhancement that adds titles, tags, and descriptive metadata to parameters, with special attention to well-known eBPF parameters, enabling richer UI surfaces and easier discoverability. No major bug fixes were reported in this period based on the provided data. Overall impact: Establishes a metadata-driven foundation that improves GUI clarity, reduces time to locate relevant parameters, and accelerates UI development and onboarding for users and operators. This work paves the way for future UI enhancements that rely on parameter metadata for filtering, grouping, and descriptions. Technologies/skills demonstrated: metadata framework design, cross-repo standardization, eBPF parameter domain knowledge, and disciplined git practices (tree-wide changes with signed-off commits).
November 2025
October 2025
9 Commits • 4 Features
Oct 1, 2025October 2025: Delivered reliability, performance, and data fidelity improvements across gadgets and the ebpf operator in inspektor-gadget/inspektor-gadget. Key work includes expanding test coverage for the tcpdump gadget and snapshot/socket, upgrading the gadget iteration model to GADGET_ITER with repeatable iteration and configurable fetch intervals, enabling memory reuse for Record structs in the ebpf operator, correcting the tcpdump field name for accurate data representation, and hardening the KubeIPResolver lifecycle by subscribing data sources in PreStart to avoid missed events. These changes reduce regression risk, lower memory overhead, and improve data accuracy and event handling, delivering tangible business value and a stronger foundation for future iterations.
October 2025
9 Commits • 4 Features
Oct 1, 2025October 2025: Delivered reliability, performance, and data fidelity improvements across gadgets and the ebpf operator in inspektor-gadget/inspektor-gadget. Key work includes expanding test coverage for the tcpdump gadget and snapshot/socket, upgrading the gadget iteration model to GADGET_ITER with repeatable iteration and configurable fetch intervals, enabling memory reuse for Record structs in the ebpf operator, correcting the tcpdump field name for accurate data representation, and hardening the KubeIPResolver lifecycle by subscribing data sources in PreStart to avoid missed events. These changes reduce regression risk, lower memory overhead, and improve data accuracy and event handling, delivering tangible business value and a stronger foundation for future iterations.
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025 monthly summary for inspektor-gadget/inspektor-gadget. Focused on delivering a controllable data fetch cadence for the top_process gadget, improving performance and resource usage. Key achievements include adding a --count parameter and updating gadget.yaml and process.go to apply the limit. Demonstrated proficiency in Go, YAML config, and operator patterns; aligned with business value by reducing unnecessary fetches and enabling scalable monitoring.
1 Commits • 1 Features
Aug 1, 2025August 2025 monthly summary for inspektor-gadget/inspektor-gadget. Focused on delivering a controllable data fetch cadence for the top_process gadget, improving performance and resource usage. Key achievements include adding a --count parameter and updating gadget.yaml and process.go to apply the limit. Demonstrated proficiency in Go, YAML config, and operator patterns; aligned with business value by reducing unnecessary fetches and enabling scalable monitoring.
August 2025
July 2025
2 Commits • 1 Features
Jul 1, 2025July 2025 (2025-07) monthly summary for inspektor-gadget/inspektor-gadget. Focused on delivering CLI usability improvements and stability enhancements that drive faster insights and reduce triage time for operators. Key outcomes include a richer CLI top_process display, improved header handling, and targeted bug fixes.
July 2025
2 Commits • 1 Features
Jul 1, 2025July 2025 (2025-07) monthly summary for inspektor-gadget/inspektor-gadget. Focused on delivering CLI usability improvements and stability enhancements that drive faster insights and reduce triage time for operators. Key outcomes include a richer CLI top_process display, improved header handling, and targeted bug fixes.
June 2025
2 Commits • 2 Features
Jun 1, 2025June 2025 — inspektor-gadget/inspektor-gadget Key deliveries: - Process Metrics Initialization for Accurate CPU Usage Deltas: Introduced initial process metric collection right after operator startup to enable accurate CPU delta calculations in subsequent intervals; first collection is not emitted. Commit 8b44088f662c4edb553ddb81e404e0c4d8306798. - Performance Improvement for Datasource Expression Evaluation: Refactored expression evaluation to remove the wrap struct, use datasource.Data directly, and added getBuiltInExpressions to simplify registering built-in expressions, improving evaluation performance. Commit 42a79908e6fb486755c08700b18bcf101c41373e. Impact: - Improved monitoring accuracy and faster data evaluation, contributing to more reliable alerts and lower latency in dashboards. Technologies/skills demonstrated: - Go performance-oriented refactoring, startup metric design, datasource data model optimization, commit-driven development.
2 Commits • 2 Features
Jun 1, 2025June 2025 — inspektor-gadget/inspektor-gadget Key deliveries: - Process Metrics Initialization for Accurate CPU Usage Deltas: Introduced initial process metric collection right after operator startup to enable accurate CPU delta calculations in subsequent intervals; first collection is not emitted. Commit 8b44088f662c4edb553ddb81e404e0c4d8306798. - Performance Improvement for Datasource Expression Evaluation: Refactored expression evaluation to remove the wrap struct, use datasource.Data directly, and added getBuiltInExpressions to simplify registering built-in expressions, improving evaluation performance. Commit 42a79908e6fb486755c08700b18bcf101c41373e. Impact: - Improved monitoring accuracy and faster data evaluation, contributing to more reliable alerts and lower latency in dashboards. Technologies/skills demonstrated: - Go performance-oriented refactoring, startup metric design, datasource data model optimization, commit-driven development.
June 2025
May 2025
15 Commits • 4 Features
May 1, 2025May 2025: Strengthened observability, data capture, and data-source flexibility, delivering business value through improved monitoring, resilience, and telemetry. Key deliverables include the Process Monitoring stack with a new process operator and top_process gadget, registry integration across ig, gadgettracermgr, and gadgetrunner, and per-host process statistics for precise issue diagnosis and capacity planning. The team also enabled operation without eBPF by making gadgetInstance optional, expanding datasource compatibility for mountns/netns scenarios. Telemetry and metrics were bolstered by a global metrics provider with dynamic registration, plus internal metrics export to otel-metrics operator and gadget-service metrics. Network capture capabilities advanced with an eBPF-oriented libpcap-compiler, packet filter patching, trailing data handling, a tcpdump gadget, and a pcap-ng CLI output mode. Data-source parsing improvements added precision metadata and robust escaping for string slices. These changes collectively improve reliability, observability, and data quality across runtimes.
May 2025
15 Commits • 4 Features
May 1, 2025May 2025: Strengthened observability, data capture, and data-source flexibility, delivering business value through improved monitoring, resilience, and telemetry. Key deliverables include the Process Monitoring stack with a new process operator and top_process gadget, registry integration across ig, gadgettracermgr, and gadgetrunner, and per-host process statistics for precise issue diagnosis and capacity planning. The team also enabled operation without eBPF by making gadgetInstance optional, expanding datasource compatibility for mountns/netns scenarios. Telemetry and metrics were bolstered by a global metrics provider with dynamic registration, plus internal metrics export to otel-metrics operator and gadget-service metrics. Network capture capabilities advanced with an eBPF-oriented libpcap-compiler, packet filter patching, trailing data handling, a tcpdump gadget, and a pcap-ng CLI output mode. Data-source parsing improvements added precision metadata and robust escaping for string slices. These changes collectively improve reliability, observability, and data quality across runtimes.
April 2025
2 Commits • 2 Features
Apr 1, 2025April 2025: Focused delivery of developer-facing features for Inspektor Gadget, with improvements to logging post-processing readiness and CLI usability. No major bugs reported this month; remaining items addressed in upcoming sprints. This period established patterns for structured logging and Cobra-based CLI aliases, enabling faster data analysis and smoother operation in production.
2 Commits • 2 Features
Apr 1, 2025April 2025: Focused delivery of developer-facing features for Inspektor Gadget, with improvements to logging post-processing readiness and CLI usability. No major bugs reported this month; remaining items addressed in upcoming sprints. This period established patterns for structured logging and Cobra-based CLI aliases, enabling faster data analysis and smoother operation in production.
April 2025
March 2025
2 Commits
Mar 1, 2025March 2025 monthly summary for inspektor-gadget/inspektor-gadget: focused on reliability and data consistency improvements. Implemented deterministic operator ordering for data processing (sorting by priority, then by name) and added a test to verify the behavior. Fixed persistence of imported gadget images in the OCI store by invoking saveIndexWithLock post-import to ensure imports are usable. These changes reduce nondeterminism, improve stability of gadget workflows, and enhance developer experience. Technologies demonstrated include Go, test-driven development, ordering algorithms, and OCI store locking.
March 2025
2 Commits
Mar 1, 2025March 2025 monthly summary for inspektor-gadget/inspektor-gadget: focused on reliability and data consistency improvements. Implemented deterministic operator ordering for data processing (sorting by priority, then by name) and added a test to verify the behavior. Fixed persistence of imported gadget images in the OCI store by invoking saveIndexWithLock post-import to ensure imports are usable. These changes reduce nondeterminism, improve stability of gadget workflows, and enhance developer experience. Technologies demonstrated include Go, test-driven development, ordering algorithms, and OCI store locking.
February 2025
3 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for inspektor-gadget/inspektor-gadget highlighting key feature deliveries, major bug fixes, and overall impact. Focused on delivering performance profiling capabilities, telemetry flexibility, and documentation accuracy to drive performance optimization and reliable observability.
3 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for inspektor-gadget/inspektor-gadget highlighting key feature deliveries, major bug fixes, and overall impact. Focused on delivering performance profiling capabilities, telemetry flexibility, and documentation accuracy to drive performance optimization and reliable observability.
February 2025
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 — Delivered a security-conscious data enrichment operator for inspektor-gadget/inspektor-gadget that adds host-related fields to events using environment variables, with an explicit allow-list to restrict access. This improves observability and data quality while maintaining security boundaries. No major bug fixes were documented this month.
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 — Delivered a security-conscious data enrichment operator for inspektor-gadget/inspektor-gadget that adds host-related fields to events using environment variables, with an explicit allow-list to restrict access. This improves observability and data quality while maintaining security boundaries. No major bug fixes were documented this month.
November 2024
14 Commits • 6 Features
Nov 1, 2024In 2024-11, Inspektor Gadget consolidated core telemetry, reliability, and security work across the project, delivering observable, safer, and more scalable runtimes for customers and internal operators. The month centered on integrating OpenTelemetry (OTLP) across logs and metrics, hardening lifecycle management, stabilizing configuration handling, and enhancing data-driven tooling.
14 Commits • 6 Features
Nov 1, 2024In 2024-11, Inspektor Gadget consolidated core telemetry, reliability, and security work across the project, delivering observable, safer, and more scalable runtimes for customers and internal operators. The month centered on integrating OpenTelemetry (OTLP) across logs and metrics, hardening lifecycle management, stabilizing configuration handling, and enhancing data-driven tooling.
November 2024
October 2024
9 Commits • 2 Features
Oct 1, 20242024-10 Monthly Summary for inspektor-gadget/inspektor-gadget: Delivered Kubernetes-native gadget lifecycle improvements focused on scalable storage, node-scoped execution, and improved operational tooling. Implemented ConfigMap-backed storage for gadget instances with CRUD operations and new kubectl-gadget commands. Enabled headless deployment with explicit node selection and enhanced attachment validation. Integrated the instance manager and ConfigMap store into the tracer manager for unified storage and tracing. Strengthened security/posture with RBAC updates to permit ConfigMap read/write access and updated documentation to reflect headless workflow. Business value: streamlined cluster lifecycle management, scalable gadget deployments across nodes, and clearer, safer operations in production.
October 2024
9 Commits • 2 Features
Oct 1, 20242024-10 Monthly Summary for inspektor-gadget/inspektor-gadget: Delivered Kubernetes-native gadget lifecycle improvements focused on scalable storage, node-scoped execution, and improved operational tooling. Implemented ConfigMap-backed storage for gadget instances with CRUD operations and new kubectl-gadget commands. Enabled headless deployment with explicit node selection and enhanced attachment validation. Integrated the instance manager and ConfigMap store into the tracer manager for unified storage and tracing. Strengthened security/posture with RBAC updates to permit ConfigMap read/write access and updated documentation to reflect headless workflow. Business value: streamlined cluster lifecycle management, scalable gadget deployments across nodes, and clearer, safer operations in production.
September 2024
2 Commits • 2 Features
Sep 1, 2024September 2024 — inspektor-gadget/inspektor-gadget: Delivered two strategic features enabling runtime configurability and enhanced observability. The changes lay groundwork for personalized user experiences and deployment-time observability tuning across environments.
2 Commits • 2 Features
Sep 1, 2024September 2024 — inspektor-gadget/inspektor-gadget: Delivered two strategic features enabling runtime configurability and enhanced observability. The changes lay groundwork for personalized user experiences and deployment-time observability tuning across environments.
September 2024
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Quality Metrics
Correctness94.0%
Maintainability89.8%
Architecture91.6%
Performance85.0%
AI Usage21.0%
Skills & Technologies
Programming Languages
CGoMakefileMarkdownYAML
Technical Skills
API DevelopmentBPFBackend DevelopmentCC DevelopmentC programmingCLI DevelopmentCLI ToolsCloud ServicesCode OrganizationCommand Line InterfaceCommand-line AliasesCommand-line InterfaceConfiguration ManagementContainer Security
Repositories Contributed To
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