K8sGPT
CLI ToolFreeAI-powered Kubernetes diagnostics.
Capabilities11 decomposed
kubernetes cluster resource scanning with pattern-based issue detection
Medium confidenceScans live Kubernetes clusters by querying the API server for pods, deployments, services, nodes, and other resources, then applies a registry of built-in SRE-knowledge analyzers that pattern-match against common failure modes (CrashLoopBackOff, ImagePullBackOff, pending pods, resource limits, etc.). The analysis engine orchestrates concurrent analyzer execution via pkg/analysis/analysis.go, aggregates findings, and returns structured diagnostic results without requiring cluster modifications.
Encodes domain-specific SRE knowledge into a pluggable analyzer registry (pkg/analyzer/analyzer.go) that pattern-matches Kubernetes resources against known failure modes, enabling offline rule-based diagnosis before AI enrichment. Supports concurrent analyzer execution and distinguishes between core analyzers and optional additional analyzers.
More targeted than generic cluster monitoring tools because it applies SRE expertise to detect specific failure patterns; faster than manual troubleshooting because it scans all resources concurrently without requiring external observability infrastructure.
multi-provider ai-powered issue explanation and remediation
Medium confidenceAccepts anonymized Kubernetes issue descriptions from the analysis engine and sends them to configurable AI backends (OpenAI, Azure OpenAI, Amazon Bedrock, Google Vertex AI, LocalAI, Ollama) via an abstract IAI interface (pkg/ai/iai.go). Each provider implements Configure(), GetCompletion(), and Close() methods, allowing k8sgpt to generate natural-language explanations and remediation steps for detected problems. Supports both cloud-hosted and self-hosted models with provider-specific authentication and request formatting.
Implements a provider-agnostic IAI interface that abstracts OpenAI, Azure, Bedrock, Vertex AI, LocalAI, and Ollama behind a common API, allowing users to swap providers via configuration without code changes. Supports both cloud and self-hosted models, enabling organizations to choose based on cost, latency, and compliance requirements.
More flexible than tools locked to a single AI provider because it supports 6+ backends and allows switching between cloud and local models; more cost-effective than always using cloud APIs because it can route to cheaper local models or alternative providers.
authentication credential management for ai providers and cloud storage
Medium confidenceManages credentials for AI providers (OpenAI, Azure, Bedrock, Vertex AI, LocalAI, Ollama) and cloud storage backends (S3, Azure Blob, GCS) via the auth subsystem (cmd/auth). Supports credential storage in config files, environment variables, or external secret stores. Implements provider-specific authentication flows (API keys, OAuth, IAM roles) without exposing credentials in logs or error messages.
Implements provider-agnostic credential management supporting multiple AI providers and cloud storage backends via environment variables and config files. Handles provider-specific authentication flows (API keys, OAuth, IAM roles) without exposing credentials in logs or error messages.
More secure than hardcoding credentials because it supports environment variables and external secret injection; more flexible than single-provider tools because it manages credentials for 6+ AI providers and 3+ storage backends.
custom analyzer framework for domain-specific issue detection
Medium confidenceProvides a pluggable analyzer framework (pkg/analyzer/analyzer.go) that allows users to define custom analyzers implementing a standard interface to detect organization-specific Kubernetes failure patterns. Custom analyzers are registered in the analyzer registry and executed alongside built-in analyzers during cluster scans. Supports both Go-based custom analyzers and external analyzer integrations, enabling teams to encode proprietary SRE knowledge without modifying k8sgpt core.
Defines a standard analyzer interface that decouples custom logic from k8sgpt core, allowing teams to register custom analyzers in the analyzer registry (pkg/analyzer/analyzer.go) and execute them concurrently with built-in analyzers. Supports both compiled Go analyzers and external tool integrations, enabling flexible extension without forking.
More extensible than monolithic diagnostic tools because it provides a clear interface for custom analyzers; more maintainable than copy-pasting k8sgpt code because custom logic stays separate and can be versioned independently.
remote cache integration for ai response deduplication and cost reduction
Medium confidenceImplements a pluggable cache layer (pkg/cache/) supporting S3, Azure Blob Storage, and Google Cloud Storage backends. When --explain is used, k8sgpt caches AI responses keyed by issue signature, allowing subsequent scans to return cached explanations for identical issues without re-querying the AI provider. Reduces API costs and latency by deduplicating AI calls across multiple scans or teams.
Implements a pluggable cache abstraction (pkg/cache/) supporting multiple cloud storage backends (S3, Azure Blob, GCS) with issue-signature-based deduplication. Allows teams to share cached AI responses across clusters and scans, reducing API costs without modifying k8sgpt core logic.
More cost-effective than always calling AI providers because it deduplicates responses for identical issues; more flexible than single-backend caching because it supports S3, Azure, and GCS, allowing teams to use existing infrastructure.
kubernetes client abstraction with multiple authentication modes
Medium confidenceAbstracts Kubernetes API access via pkg/kubernetes/kubernetes.go, supporting multiple authentication modes: kubeconfig-based (default), in-cluster service account tokens, and controller-runtime client. Automatically detects cluster context from kubeconfig or environment variables, handles API server discovery, and manages connection pooling. Enables k8sgpt to run as a CLI tool, in-cluster pod, or external controller without code changes.
Provides a unified Kubernetes client abstraction (pkg/kubernetes/kubernetes.go) that supports kubeconfig, in-cluster service accounts, and controller-runtime clients, allowing k8sgpt to run in multiple deployment modes without code changes. Automatically detects authentication context and handles connection pooling.
More flexible than tools requiring explicit authentication configuration because it auto-detects kubeconfig and in-cluster tokens; more portable than tools locked to a single auth mode because it supports CLI, in-cluster, and controller-runtime scenarios.
analyzer registry and concurrent execution orchestration
Medium confidenceManages a registry of analyzers (pkg/analyzer/analyzer.go) that maps filter names to analyzer implementations, distinguishing between core analyzers (always available) and optional additional analyzers. The analysis engine (pkg/analysis/analysis.go) orchestrates concurrent execution of selected analyzers against the cluster, aggregates results, and returns structured findings. Supports filtering by analyzer name or resource type to scope scans.
Implements a registry-based analyzer system (pkg/analyzer/analyzer.go) that decouples analyzer implementations from the orchestration engine, allowing concurrent execution of multiple analyzers with filter-based selection. Distinguishes between core and optional analyzers, enabling flexible analyzer composition.
Faster than sequential analyzer execution because it runs analyzers concurrently; more modular than monolithic diagnostic tools because analyzers are independently registered and can be added without modifying orchestration logic.
configuration management with environment variable and file-based overrides
Medium confidenceUses Viper-based configuration management (cmd/root.go) supporting multiple sources: YAML/JSON config files, environment variables, and CLI flags. Follows XDG Base Directory specification for config file location (~/.config/k8sgpt/config.yaml). Configuration precedence: CLI flags > environment variables > config file > defaults. Enables flexible deployment across local machines, CI/CD systems, and Kubernetes clusters without code changes.
Implements Viper-based configuration with XDG Base Directory support and three-level precedence (CLI flags > env vars > config file), allowing flexible configuration across local, CI/CD, and Kubernetes deployments without code changes. Supports YAML/JSON config files and environment variable overrides.
More flexible than tools with hardcoded configuration because it supports file, environment, and CLI-based overrides; more portable than tools ignoring XDG standards because it follows Linux conventions for config file location.
mcp server mode for integration with ai-native tools and agents
Medium confidenceExposes k8sgpt analysis capabilities as a Model Context Protocol (MCP) server, allowing AI agents and LLM-based tools to invoke cluster scanning and issue diagnosis as a tool. The MCP server (pkg/server/analyze/analyze.go) translates k8sgpt operations into MCP-compatible function calls, enabling seamless integration with Claude, ChatGPT plugins, or custom AI agents without requiring direct CLI invocation.
Implements a Model Context Protocol (MCP) server mode that exposes k8sgpt analysis as tool calls for AI agents and LLM-based systems. Allows AI agents to autonomously invoke cluster scanning and diagnosis without CLI invocation, enabling integration with Claude, ChatGPT plugins, and custom AI workflows.
More AI-native than CLI-only tools because it provides MCP server support for direct agent integration; more flexible than tools requiring custom API wrappers because it uses the standard MCP protocol for tool definition and invocation.
output formatting with multiple serialization formats
Medium confidenceSupports multiple output formats (JSON, YAML, table/text) for diagnostic results via pkg/analysis/output.go. Users can select format via CLI flags (--output json, --output yaml, --output table). Enables integration with downstream tools (jq, yq, grep, etc.) and human-readable reporting. Each format preserves full diagnostic information while adapting presentation to the use case.
Provides pluggable output formatting (pkg/analysis/output.go) supporting JSON, YAML, and table formats, allowing results to be consumed by humans (table), machines (JSON), and Kubernetes tools (YAML) without code changes. Each format preserves full diagnostic information while adapting presentation.
More flexible than tools with fixed output format because it supports JSON, YAML, and table; more compatible with CLI ecosystems because JSON/YAML output integrates with jq, yq, and other standard tools.
namespace and resource-type filtering for scoped cluster analysis
Medium confidenceSupports CLI flags (--namespace, --resource-type) to scope cluster scans to specific namespaces or Kubernetes resource kinds (pods, deployments, services, nodes, etc.). Filters are applied at the analysis engine level before analyzer execution, reducing API server load and result volume. Enables focused troubleshooting of specific workloads or infrastructure components without scanning the entire cluster.
Implements namespace and resource-type filtering at the analysis engine level, reducing API server load and result volume by scoping scans before analyzer execution. Supports multiple namespace and resource-type values for flexible filtering without complex query syntax.
More efficient than scanning entire clusters because filtering reduces API calls and analyzer execution; more focused than tools without filtering because users can troubleshoot specific namespaces or resource types without noise from unrelated resources.
Capabilities are decomposed by AI analysis. Each maps to specific user intents and improves with match feedback.
Related Artifactssharing capabilities
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Best For
- ✓SRE teams and platform engineers managing production Kubernetes clusters
- ✓DevOps engineers troubleshooting cluster health during incidents
- ✓Teams automating cluster health checks in CI/CD or monitoring pipelines
- ✓Teams with existing AI provider accounts (OpenAI, Azure, AWS, Google Cloud)
- ✓Organizations requiring on-premises AI inference (LocalAI, Ollama deployments)
- ✓SRE teams automating incident response and runbook generation
- ✓Developers building AI-augmented Kubernetes tooling
- ✓Teams managing credentials across multiple environments (local, CI/CD, Kubernetes)
Known Limitations
- ⚠Requires active kubeconfig and API server connectivity; cannot diagnose offline clusters
- ⚠Built-in analyzers cover common patterns only; edge-case failures may not be detected without custom analyzers
- ⚠Scans only current cluster state; does not analyze historical events or audit logs
- ⚠No built-in support for multi-cluster scanning in a single invocation
- ⚠Requires valid API credentials for chosen provider; no built-in fallback if provider is unavailable
- ⚠AI responses are non-deterministic and may vary in quality or accuracy across providers
Requirements
Input / Output
UnfragileRank
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About
A tool for scanning your Kubernetes clusters, diagnosing issues, and triaging them with AI. K8sGPT translates cluster problems into plain English explanations and suggested fixes.
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