7b5954ea00
* helm: grant hub tokenreviews and pass trusted controllers Adds RBAC for hub to call the authentication.k8s.io/v1 TokenReview endpoint, used by the new internalauth middleware to validate projected ServiceAccountTokens presented by in-cluster gRPC callers. Adds tap.internalAuth.trustedControllers value (empty by default), threaded through to hub's -trusted-controllers flag as a CSV. Listing a controller here lets pods owned by it authenticate to hub via the projected SA token (audience kubeshark-hub). Hub-spawned Jobs are always trusted regardless of this list. Hub matches OwnerReferences by name AND UID, so a name-only forgery does not grant trust. Sub-issue of kubeshark/hub#656. * helm: inline trusted controllers in hub deployment template The chart already knows its own controller names (worker DaemonSet metadata.name is the literal "kubeshark-worker-daemon-set" in 09-worker-daemon-set.yaml). Pasting the same literal into a user-facing tap.internalAuth.trustedControllers value adds a step without buying anything — if the worker DS rename, the deployment template would have to change in lockstep regardless. Drop the values knob, render the flag unconditionally with the literal worker DS name (matching the convention used elsewhere in this chart, e.g. the hub deployment's {{ include "kubeshark.name" . }}-hub). * helm: drop redundant comment on tokenreviews RBAC * helm: drop -trusted-controllers flag (no caller today) The flag was wiring forward-prep for a hypothetical worker->hub gRPC caller from the DaemonSet. Hub-spawned Jobs (dissection-job) are admitted via internalauth.RegisterSpawnedJob, not via this flag. Re-add when an actual DaemonSet-deployed caller materializes. * helm: label worker DS pods for hub internal auth Worker pods don't call hub gRPC today, but pre-labeling the DS pod template means a future worker->hub gRPC caller is one PR (worker-side) away from working — no chart change required. Matches the generic label-driven trust model in hub#783. * helm: rename trust label to kubeshark.io/internal-auth Matches the hub rename. Generic name so the same label can mark pods trusted by future kubeshark services beyond hub.
Network Observability for SREs & AI Agents
Kubeshark indexes cluster-wide network traffic at the kernel level using eBPF — delivering instant answers to any query using network, API, and Kubernetes semantics.
What you can do:
- Download Retrospective PCAPs — cluster-wide packet captures filtered by nodes, time, workloads, and IPs. Store PCAPs for long-term retention and later investigation.
- Visualize Network Data — explore traffic matching queries with API, Kubernetes, or network semantics through a real-time dashboard.
- See Encrypted Traffic in Plain Text — automatically decrypt TLS/mTLS traffic using eBPF, with no key management or sidecars required.
- Integrate with AI — connect your favorite AI assistant (e.g. Claude, Copilot) to include network data in AI-driven workflows like incident response and root cause analysis.
Get Started
helm repo add kubeshark https://helm.kubeshark.com
helm install kubeshark kubeshark/kubeshark
kubectl port-forward svc/kubeshark-front 8899:80
Open http://localhost:8899 in your browser. You're capturing traffic.
For production use, we recommend using an ingress controller instead of port-forward.
Connect an AI agent via MCP:
brew install kubeshark
claude mcp add kubeshark -- kubeshark mcp
Network Data for AI Agents
Kubeshark exposes cluster-wide network data via MCP — enabling AI agents to query traffic, investigate API calls, and perform root cause analysis through natural language.
"Why did checkout fail at 2:15 PM?" "Which services have error rates above 1%?" "Show TCP retransmission rates across all node-to-node paths" "Trace request abc123 through all services"
Works with Claude Code, Cursor, and any MCP-compatible AI.
AI Skills
Open-source, reusable skills that teach AI agents domain-specific workflows on top of Kubeshark's MCP tools:
| Skill | Description |
|---|---|
| Network RCA | Retrospective root cause analysis — snapshots, dissection, PCAP extraction, trend comparison |
| KFL | KFL (Kubeshark Filter Language) expert — writes, debugs, and optimizes traffic filters |
Install as a Claude Code plugin:
/plugin marketplace add kubeshark/kubeshark
/plugin install kubeshark
Or clone and use directly — skills trigger automatically based on conversation context.
Query with API, Kubernetes, and Network Semantics
Kubeshark indexes cluster-wide network traffic by parsing it according to protocol specifications, with support for HTTP, gRPC, Redis, Kafka, DNS, and more. A single KFL query can combine all three semantic layers — Kubernetes identity, API context, and network attributes — to pinpoint exactly the traffic you need. No code instrumentation required.
KFL reference → · Traffic indexing →
Workload Dependency Map
A visual map of how workloads communicate, showing dependencies, traffic volume, and protocol usage across the cluster.
Traffic Retention & PCAP Export
Capture and retain raw network traffic cluster-wide, including decrypted TLS. Download PCAPs scoped by time range, nodes, workloads, and IPs — ready for Wireshark or any PCAP-compatible tool. Store snapshots in cloud storage (S3, Azure Blob, GCS) for long-term retention and cross-cluster sharing.
Snapshots guide → · Cloud storage →
Features
| Feature | Description |
|---|---|
| Traffic Snapshots | Point-in-time snapshots with cloud storage (S3, Azure Blob, GCS), PCAP export for Wireshark |
| Traffic Indexing | Real-time and delayed L7 indexing with request/response matching and full payloads |
| Protocol Support | HTTP, gRPC, GraphQL, Redis, Kafka, DNS, and more |
| TLS Decryption | eBPF-based decryption without key management, included in snapshots |
| AI Integration | MCP server + open-source AI skills for network RCA and traffic filtering |
| KFL Query Language | CEL-based query language with Kubernetes, API, and network semantics |
| 100% On-Premises | Air-gapped support, no external dependencies |
Install
| Method | Command |
|---|---|
| Helm | helm repo add kubeshark https://helm.kubeshark.com && helm install kubeshark kubeshark/kubeshark |
| Homebrew | brew install kubeshark && kubeshark tap |
| Binary | Download |
Contributing
We welcome contributions. See CONTRIBUTING.md.