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aks-network-capture

Collects bounded packet captures from AKS nodes and Azure network configuration for wire-level evidence. WHEN: "capture packets on an AKS node", "take a pcap", "run tcpdump on AKS", "prove where packets drop". Use for explicit packet-capture intent after read-only diagnostics, not general AKS connectivity or ingress troubleshooting.

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SKILL.md
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name
aks-network-capture
description
Collects bounded packet captures from AKS nodes and Azure network configuration for wire-level evidence. WHEN: "capture packets on an AKS node", "take a pcap", "run tcpdump on AKS", "prove where packets drop". Use for explicit packet-capture intent after read-only diagnostics, not general AKS connectivity or ingress troubleshooting.
license
MIT
metadata
{"author":"Microsoft","version":"1.0.1"}
# AKS Network Capture ## Quick Reference | Use | Requires | Safety | | --- | --- | --- | | AKS pcap evidence | `kubectl`; `az` for Azure evidence | Bounded, pinned, least privilege | ## When to Use This Skill Use for explicit packet capture after read-only checks, not generic connectivity failures. ## MCP Tools Azure MCP's AKS area provides cluster and node-pool metadata, not Kubernetes command execution or packet capture. ## Host Capability Gate Before executing the workflow, confirm that the host permits the required Bash or PowerShell execution, `kubectl` access to the bound cluster, `az` for Azure evidence, access to the bundled scripts, and an approved artifact destination. A governed Azure CLI tool alone does not establish that shell, Kubernetes commands, or artifact operations are supported. If a required capability is unavailable or prohibited, state that capture execution is unavailable in this host. Analyze supplied, appropriately redacted evidence or give the operator a target-bound collection/capture plan; do not claim to have run it. Never route `kubectl` through Azure MCP, add an unapproved execution path, or bypass host policy. Host support does not replace the mutation and sensitive-data approvals below. Run bundled scripts from the skill root only after this gate is satisfied. ## Workflow/Steps 0. Check host capabilities, then complete [authorization and target binding](references/capture-authorization.md). Capture intent is not mutation consent. Stop for separate approval before any debug-container fallback. 1. Install [Bash](scripts/setup-capture-configmap.sh) / [PowerShell](scripts/setup-capture-configmap.ps1). 2. Capture nodes or pods with [Bash](scripts/create-capture.sh) / [PowerShell](scripts/create-capture.ps1). 3. Generate traffic if approved with [Bash](scripts/generate-test-traffic.sh) / [PowerShell](scripts/generate-test-traffic.ps1). 4. Retrieve the exact run with [Bash](scripts/retrieve-captures.sh) / [PowerShell](scripts/retrieve-captures.ps1). 5. Gather Azure evidence with [Bash](scripts/collect-azure-network-info.sh) / [PowerShell](scripts/collect-azure-network-info.ps1). The ConfigMap runs [run-capture.sh](scripts/run-capture.sh) inside its pinned Linux image. ## Error Handling | Error | Action | | --- | --- | | Invalid input | Correct it before retrying. | | Missing/stale ConfigMap | Run setup again. | | Capture/retrieval failure | Inspect Job logs; missing evidence is not success. |
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