Files
claude-code/workflows/incidents/node-issue-response.yaml
OpenCode Test c14bae9a12 feat: Implement Phase 3 automation for K8s agent system
Automation components for scheduled and event-driven workflows:

Scheduler:
- scheduler.sh for cron-based workflow execution
- Logs workflow runs to ~/.claude/logs/workflows/
- Notifies dashboard on completion

Alertmanager Integration:
- webhook-receiver.sh for processing alerts
- Dashboard endpoint /api/webhooks/alertmanager
- Example alertmanager-config.yaml with routing rules
- Maps alerts to workflows (crashloop, node issues, resources)

New Incident Workflows:
- node-issue-response.yaml: Handle NotReady/unreachable nodes
- resource-pressure-response.yaml: Respond to memory/CPU overcommit
- argocd-sync-failure.yaml: Investigate and fix sync failures

Dashboard Updates:
- POST /api/webhooks/alertmanager endpoint
- POST /api/workflows/{name}/complete endpoint
- Alerts create pending actions for visibility

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-26 11:49:05 -08:00

109 lines
2.8 KiB
YAML

name: node-issue-response
description: Respond to node issues (NotReady, unreachable)
version: "1.0"
trigger:
- alert:
match:
alertname: KubeNodeNotReady
- alert:
match:
alertname: KubeNodeUnreachable
- manual: true
inputs:
- name: node
description: Node name
required: true
defaults:
model: sonnet
steps:
- name: identify-node
agent: k8s-diagnostician
model: haiku
task: |
Identify the affected node:
- Node: {{ inputs.node | default(alert.labels.node) }}
Get node details:
- Current conditions
- Last heartbeat time
- Kubelet status
- Resource capacity vs allocatable
output: node_info
- name: check-workloads
agent: k8s-diagnostician
model: haiku
task: |
List workloads on the affected node:
- Pods running on the node
- Any pods in Pending state due to node issues
- DaemonSets that should be on this node
Node: {{ steps.identify-node.output.node_name }}
output: workload_status
- name: check-metrics
agent: prometheus-analyst
model: haiku
task: |
Check node metrics history:
- CPU/memory usage trend before issue
- Network connectivity metrics
- Disk I/O and space
- Any anomalies in last hour
Node: {{ steps.identify-node.output.node_name }}
output: metrics_analysis
- name: diagnose-and-recommend
agent: k8s-orchestrator
model: sonnet
task: |
Analyze the node issue:
Evidence:
- Node info: {{ steps.identify-node.output }}
- Workloads: {{ steps.check-workloads.output }}
- Metrics: {{ steps.check-metrics.output }}
Determine:
1. Root cause (network, resource exhaustion, kubelet crash, hardware)
2. Impact (number of affected pods, critical workloads)
3. Recovery options
For Pi cluster context:
- Pi 5 nodes: Can handle more recovery actions
- Pi 3 node: Be conservative, limited resources
Recommend actions with risk classification.
output: diagnosis
- name: safe-actions
condition: "{{ steps.diagnose-and-recommend.output.has_safe_action }}"
agent: k8s-diagnostician
model: haiku
task: |
Execute safe recovery actions:
- Attempt to reschedule affected pods
- Check if node recovers on its own
Do NOT:
- Drain the node (requires confirmation)
- Cordon the node (requires confirmation)
output: recovery_result
outputs:
- diagnosis
- recovery_result
notifications:
on_complete:
summary: |
Node issue response for {{ steps.identify-node.output.node_name }}:
- Status: {{ steps.diagnose-and-recommend.output.node_status }}
- Root cause: {{ steps.diagnose-and-recommend.output.root_cause }}
- Affected pods: {{ steps.check-workloads.output.pod_count }}