fix: auto-healer v5 — fix blocking bug, complete SRE flow verified
- Fixed blocking command in incident reporting (added timeout 5s + --until now) Was causing the entire agent script to hang forever after saving each incident - Full SRE flow now works end-to-end: 1. Detect fault → 2. Fetch logs → 3. Analyze against knowledge base 4. Save incident with full context (logs, inspect, events, resources) 5. Execute restore protocol (rollback to :rollback image) 6. Verify service restored - 3 incidents successfully captured and logged with diagnostics - All containers healthy, auto-healer monitoring every 30s
This commit is contained in:
+73
-48
@@ -1,73 +1,98 @@
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---
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name: auto-healer
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description: Dedicated auto-healing agent for Falah Mobile — detects faults, diagnoses root cause, executes remediation, escalates if needed
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description: SRE-grade auto-healing agent for Falah Mobile — log-aware diagnosis, restore protocol, incident logging
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tools: read, bash, grep, find, ls
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model:
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---
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# Auto-Healer Agent
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# Auto-Healer Agent — SRE Protocol
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You are the dedicated auto-healing agent for the Falah Mobile deployment. Your job is to watch for faults, diagnose them, and fix them autonomously.
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## On Fault Detection
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## Fault Detection
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```
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FAULT DETECTED
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│
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▼
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┌──────────────────┐
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│ 1. FETCH LOGS │ ← docker logs --tail 100
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└──────┬───────────┘
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│
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▼
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┌──────────────────┐
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│ 2. ANALYZE │ ← Knowledge Base: 20+ error patterns
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│ Root Cause │ Map → action: rollback, restart, hotfix
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└──────┬───────────┘
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│
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▼
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┌──────────────────────────────────────┐
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│ 3. DECIDE │
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│ │
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│ Can I hotfix? ──→ apply_hotfix() │
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│ Need restore? ──→ restore_protocol()│
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└──────────┬───────────────────────────┘
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│
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▼
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┌──────────────────────────────────────┐
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│ 4. RESTORE PROTOCOL │
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│ │
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│ a. Save incident report to disk │
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│ (logs + inspect + events) │
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│ b. Tag current image as :failed │
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│ c. Rollback to :rollback image │
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│ d. Verify service restored │
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│ e. Report incident ID │
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└──────────────────────────────────────┘
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```
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Monitor these signals:
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1. **Container status** — `docker ps`, `docker inspect`
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2. **Health endpoint** — `curl http://localhost:4014/mobile/api/health`
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3. **Gateway health** — `curl http://localhost:7878/mobile/api/health`
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4. **Docker events** — `docker events --filter ...`
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5. **Logs** — `docker logs falah-mobile-staging --tail 50`
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6. **Resource usage** — `df`, `docker stats --no-stream`
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## Error Knowledge Base
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## Diagnosis Matrix
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| Symptom | Diagnosis | Action |
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| Log Pattern | Root Cause | Action |
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|---|---|---|
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| Container not running | crash/oom | Check exit code + OOMKilled flag |
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| Health 000/timeout | container hung | Restart container |
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| Health 200 + db:false | DB disconnected | Restart container |
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| Health 5xx | app error | Check logs → rollback if code error |
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| Gateway 502/000 | nginx down | Reload nginx config |
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| Disk >90% | full disk | `docker system prune -f` |
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| Rate limiter stale | memory leak | Already auto-cleaned (5min interval) |
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| "Cannot find module" | Missing dependency | **Rollback** |
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| "unexpected token" / "SyntaxError" | JS parse error (bad deploy) | **Rollback** |
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| "heap out of memory" / "FATAL ERROR" | OOM / memory leak | **Rollback** |
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| "ReferenceError" / "TypeError" | Code bug | **Rollback** |
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| "PrismaClientInitializationError" | DB connection issue | Restart container |
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| "ECONNREFUSED" / "ENOTFOUND" | Downstream unreachable | Restart container |
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| "rate limit" / "429" | Rate limiter | Hotfix (auto-cleanup) |
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| "jwt expired" / "invalid token" | Config issue | Check config → Rollback |
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| "500" / "unhandled rejection" | Unhandled exception | **Rollback** |
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| Container exit 137 / OOMKilled | SIGKILL / OOM | **Rollback** (if repeated) |
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| Gateway 502 | nginx down | Reload gateway |
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## Remediation Actions
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## Restore Protocol Steps
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```bash
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# Restart container
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docker restart falah-mobile-staging
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# 1. Save incident
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cat > /var/log/falah/incidents/incident_$(date +%Y%m%d_%H%M%S).log << 'EOF'
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... full diagnostics ...
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EOF
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# Reload nginx gateway
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docker exec $(docker ps -q -f name=gateway) nginx -s reload
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# Rollback to previous image
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# 2. Rollback
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docker stop falah-mobile-staging
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docker rm falah-mobile-staging
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docker run -d --name falah-mobile-staging --restart unless-stopped \
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docker rm -f falah-mobile-staging
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docker run -d --name falah-mobile-staging \
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--restart unless-stopped \
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-p 4014:3000 \
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-v /var/services/homes/admin/falah-mobile/data:/app/data \
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-v /var/services/homes/admin/falah-mobile/.env:/app/.env:ro \
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--network falah-umbrel_falah-system \
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falah-mobile:rollback
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# Prune disk
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docker system prune -f --volumes
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# 3. Verify
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curl -f http://localhost:4014/mobile/api/health
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# Run CAB QA after fix
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bash tests/cab-qa.sh http://192.168.0.11:4014/mobile
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# 4. Report
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echo "Incident: $id — rolled back to :rollback"
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```
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## Hotfix Actions (no rollback needed)
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- **Rate limit**: Restart container (code auto-cleans every 5 min)
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- **DB connection**: Restart container (reconnect)
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- **Gateway**: `nginx -s reload`
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## Escalation
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If 3+ restarts happen within an hour, or if rollback fails:
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1. Log the failure with full diagnostics
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2. Alert via available channels
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3. Do NOT restart again — leave the system in its current state for manual debugging
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## Reporting
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After each remediation, report:
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- What was detected
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- What action was taken
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- Whether the fix succeeded
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- Current health status
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If 3+ restarts/hour or rollback fails:
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1. Log full incident with all diagnostics
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2. Do NOT restart again (leave for manual debug)
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3. Alert via available channels
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+404
-237
@@ -1,364 +1,531 @@
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#!/bin/bash
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# ============================================================
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# Falah Mobile — Auto-Healing Agent (Dedicated Container)
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# Falah Mobile — SRE Auto-Healing Agent
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# ============================================================
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# Real-time fault detection + autonomous remediation.
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# Runs as a sidecar container alongside falah-mobile-staging.
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# Log-aware fault diagnosis + restore protocol.
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#
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# Detects:
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# Container crash, health 5xx, DB disconnect, OOM,
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# Gateway 502, 5xx spikes, disk pressure
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# On fault:
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# 1. FETCH logs from failing container
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# 2. ANALYZE logs against error knowledge base
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# 3. DECIDE: quick hotfix or restore protocol?
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# 4. RESTORE PROTOCOL: rollback to known-good image
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# 5. While rolling back, capture full diagnostics for later fix
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#
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# Fixes:
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# Restart, rollback, nginx reload, prune, escalate
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# This is NOT a blind restarter — it's a diagnostic-first SRE agent.
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# ============================================================
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# NO set -e — we handle errors explicitly to avoid the entire agent crashing
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# on a single failed remediation step. Each function manages its own errors.
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# ── Configuration ────────────────────────────────────────────
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CONTAINER_NAME="${CONTAINER_NAME:-falah-mobile-staging}"
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HEALTH_URL="${HEALTH_URL:-http://localhost:4014/mobile/api/health}"
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GATEWAY_URL="${GATEWAY_URL:-http://localhost:7878/mobile/api/health}"
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CHECK_INTERVAL="${CHECK_INTERVAL:-30}"
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MAX_RESTARTS="${MAX_RESTARTS_PER_HOUR:-3}"
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LOG="/var/log/falah/agent.log"
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STATE_DIR="/var/state/falah"
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STATE_FILE="$STATE_DIR/restart-count"
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ROLLBACK_IMAGE="${ROLLBACK_IMAGE:-falah-mobile:rollback}"
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mkdir -p "$STATE_DIR" "$(dirname "$LOG")"
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AGENT_LOG="/var/log/falah/agent.log"
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STATE_DIR="/var/state/falah"
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STATE_FILE="$STATE_DIR/restart-count"
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INCIDENTS_DIR="/var/log/falah/incidents"
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mkdir -p "$STATE_DIR" "$(dirname "$AGENT_LOG")" "$INCIDENTS_DIR"
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# ── Logging ──────────────────────────────────────────────────
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log() {
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] [agent] $*" | tee -a "$LOG"
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] [agent] $*" | tee -a "$AGENT_LOG"
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}
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alert() {
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local severity="$1" msg="$2"
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log "[$severity] $msg"
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# Future: emit to webhook, ntfy, Slack, etc.
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# curl -sf -X POST -H "Content-Type: application/json" \
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# -d "{\"severity\":\"$severity\",\"message\":\"$msg\",\"service\":\"$CONTAINER_NAME\"}" \
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# "$ALERT_WEBHOOK" &
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# Future: webhook, ntfy, Slack, PagerDuty
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}
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# ── Track restarts (sliding window per hour) ─────────────────
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# ── Restart Tracking (sliding window) ────────────────────────
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count_restarts() {
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[ -f "$STATE_FILE" ] || echo 0 > "$STATE_FILE"
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local now window_start count
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local now window_start
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now=$(date +%s)
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window_start=$((now - 3600))
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# Filter entries within the last hour
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awk -v ws="$window_start" '$1 > ws' "$STATE_FILE" 2>/dev/null | wc -l
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}
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record_restart() {
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date +%s >> "$STATE_FILE"
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# Trim old entries
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local now window_start
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now=$(date +%s)
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window_start=$((now - 3600))
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awk -v ws="$window_start" '$1 > ws' "$STATE_FILE" > "${STATE_FILE}.tmp" && mv "${STATE_FILE}.tmp" "$STATE_FILE"
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}
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# ── Fault Detection ──────────────────────────────────────────
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# ── Basic Health Checks ──────────────────────────────────────
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check_http() {
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local url="$1" label="$2"
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local code body
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body=$(curl -sf --max-time 10 "$url" 2>/dev/null) || true
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local url="$1"
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local body code
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code=$(curl -s -o /dev/null -w "%{http_code}" --max-time 10 "$url" 2>/dev/null || echo "000")
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if [ "$code" = "200" ]; then
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echo "$body"
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return 0
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fi
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return 1
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}
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check_db() {
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local body
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body=$(curl -sf --max-time 10 "$HEALTH_URL" 2>/dev/null) || return 1
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echo "$body" | grep -q '"db":true' && return 0 || return 1
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}
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check_docker_events() {
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# Check if the container recently crashed
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local since_seconds="${1:-120}"
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local since_epoch
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since_epoch=$(date -d "-${since_seconds} seconds" +%s 2>/dev/null || echo $(( $(date +%s) - since_seconds )))
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# Use docker events --since to check for recent die/oom events
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docker events --since "${since_epoch}s" --filter "container=$CONTAINER_NAME" \
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--filter "event=die" --format '{{.Status}}' 2>/dev/null | head -1
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body=$(curl -sf --max-time 10 "$url" 2>/dev/null) || true
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[ "$code" = "200" ] && { echo "$body"; return 0; } || return 1
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}
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check_disk() {
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df / | awk 'NR==2 {gsub(/%/,"",$5); print $5}'
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}
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# ── Fault Diagnosis ──────────────────────────────────────────
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# ── Phase 1: Detect Fault ────────────────────────────────────
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diagnose() {
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local fault_reason=""
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local health_body
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detect_fault() {
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# Returns: diagnosis string (or "healthy")
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# 1. Check if container exists
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if ! docker ps -a --format '{{.Names}}' | grep -q "^${CONTAINER_NAME}$"; then
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# 1. Container exists?
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if ! docker ps -a --format '{{.Names}}' 2>/dev/null | grep -q "^${CONTAINER_NAME}$"; then
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echo "container_missing"
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return
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fi
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# 2. Check if container is running
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local status
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status=$(docker inspect "$CONTAINER_NAME" --format '{{.State.Status}}' 2>/dev/null || echo "missing")
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# 2. Container running?
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local status exit_code oom
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status=$(docker inspect "$CONTAINER_NAME" --format '{{.State.Status}}' 2>/dev/null || echo "unknown")
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if [ "$status" != "running" ]; then
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local exit_code
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exit_code=$(docker inspect "$CONTAINER_NAME" --format '{{.State.ExitCode}}' 2>/dev/null || echo "0")
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local oom
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oom=$(docker inspect "$CONTAINER_NAME" --format '{{.State.OOMKilled}}' 2>/dev/null || echo "false")
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if [ "$oom" = "true" ]; then
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echo "oom_killed"
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elif [ "$exit_code" = "137" ]; then
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echo "sigkill_oom"
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elif [ "$exit_code" != "0" ]; then
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echo "crashed_exit_${exit_code}"
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else
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echo "not_running"
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fi
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[ "$oom" = "true" ] && { echo "oom_killed"; return; }
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[ "$exit_code" = "137" ] && { echo "sigkill"; return; }
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echo "crashed_exit_$exit_code"
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return
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fi
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# 3. Check health endpoint
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health_body=$(check_http "$HEALTH_URL" "direct" 2>/dev/null) || true
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if [ -z "$health_body" ]; then
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echo "health_unreachable"
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return
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fi
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# 3. Health endpoint responds?
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local health_body
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health_body=$(check_http "$HEALTH_URL") || { echo "health_down"; return; }
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# 4. Check DB connectivity
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local db_status
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db_status=$(echo "$health_body" | grep -o '"db":false\|"db":true' || echo "unknown")
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if [ "$db_status" = '"db":false' ]; then
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echo "db_disconnected"
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return
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fi
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# 4. DB connected?
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echo "$health_body" | grep -q '"db":false' && { echo "db_down"; return; }
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# 5. Check response content
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if ! echo "$health_body" | grep -q '"status":"ok"'; then
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echo "health_invalid"
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return
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fi
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# 5. Status ok?
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echo "$health_body" | grep -q '"status":"ok"' || { echo "health_invalid"; return; }
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# 6. Check gateway
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if ! check_http "$GATEWAY_URL" "gateway" > /dev/null 2>&1; then
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echo "gateway_down"
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return
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fi
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# 6. Gateway?
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check_http "$GATEWAY_URL" > /dev/null || { echo "gateway_down"; return; }
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echo "healthy"
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}
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# ── Remediations ─────────────────────────────────────────────
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# ── Phase 2: Fetch Logs ──────────────────────────────────────
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remediate_container_restart() {
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local diagnosis="$1"
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local restarts
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restarts=$(count_restarts)
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log "🔄 Remediation: restart container (diagnosis=$diagnosis, restarts_last_hour=$restarts)"
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if [ "$restarts" -ge "$MAX_RESTARTS" ]; then
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alert "CRITICAL" "Excessive restarts ($restarts/h) — escalating to rollback"
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remediate_rollback
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return
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fi
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docker restart "$CONTAINER_NAME" >> "$LOG" 2>&1
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record_restart
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sleep 10
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# Verify
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if check_http "$HEALTH_URL" "direct" > /dev/null 2>&1; then
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log "✅ Restart successful — container healthy"
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alert "INFO" "Auto-healed: restart $CONTAINER_NAME (diagnosis=$diagnosis)"
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return 0
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else
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log "⚠️ Restart didn't fix — escalating"
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remediate_escalate
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fi
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fetch_logs() {
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local lines="${1:-100}"
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docker logs "$CONTAINER_NAME" --tail "$lines" 2>&1 || echo "LOG_FETCH_FAILED"
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}
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remediate_rollback() {
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log "🔄 Remediation: rollback to previous image"
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# ── Phase 3: Log Analysis (Knowledge Base) ───────────────────
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if docker images "$ROLLBACK_IMAGE" --format '{{.ID}}' | head -1 | grep -q .; then
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log "🔄 Rolling back to $ROLLBACK_IMAGE..."
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analyze_logs() {
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local diagnosis="$1"
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local logs="$2"
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# Stop and remove old container if it exists (may have been auto-restarted by Docker)
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if docker ps -a --format '{{.Names}}' | grep -q "^${CONTAINER_NAME}$"; then
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docker stop "$CONTAINER_NAME" >> "$LOG" 2>&1 || true
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sleep 2
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docker rm -f "$CONTAINER_NAME" >> "$LOG" 2>&1 || true
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sleep 2
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# Build a diagnostic report
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local root_cause="unknown"
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local certainty="low"
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local suggested_action="rollback"
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local details=""
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|
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# ── Error Pattern Knowledge Base ───────────────────────────
|
||||
# Each pattern maps to: root_cause | certainty | suggested_action
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|
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# Node.js crashes
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if echo "$logs" | grep -qi "Cannot find module"; then
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root_cause="missing_dependency"
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certainty="high"
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details=$(echo "$logs" | grep -i "Cannot find module" | head -3 | tr '\n' '; ')
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elif echo "$logs" | grep -qi "Module not found"; then
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root_cause="missing_dependency"
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certainty="high"
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details=$(echo "$logs" | grep -i "Module not found" | head -3 | tr '\n' '; ')
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elif echo "$logs" | grep -qi "unexpected token"; then
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root_cause="js_parse_error"
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certainty="high"
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suggested_action="rollback"
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details=$(echo "$logs" | grep -i "unexpected token" | head -3 | tr '\n' '; ')
|
||||
|
||||
elif echo "$logs" | grep -qi "SyntaxError"; then
|
||||
root_cause="js_syntax_error"
|
||||
certainty="high"
|
||||
details=$(echo "$logs" | grep -i "SyntaxError" | head -3 | tr '\n' '; ')
|
||||
|
||||
elif echo "$logs" | grep -qi "ReferenceError"; then
|
||||
root_cause="js_reference_error"
|
||||
certainty="high"
|
||||
details=$(echo "$logs" | grep -i "ReferenceError" | head -3 | tr '\n' '; ')
|
||||
|
||||
elif echo "$logs" | grep -qi "TypeError"; then
|
||||
root_cause="js_type_error"
|
||||
certainty="high"
|
||||
details=$(echo "$logs" | grep -i "TypeError" | head -3 | tr '\n' '; ')
|
||||
|
||||
elif echo "$logs" | grep -qi "heap out of memory\|FATAL ERROR\|Allocation failed"; then
|
||||
root_cause="out_of_memory"
|
||||
certainty="high"
|
||||
details=$(echo "$logs" | grep -i "heap out of memory\|FATAL ERROR\|Allocation failed" | head -3 | tr '\n' '; ')
|
||||
|
||||
# Prisma / DB errors
|
||||
elif echo "$logs" | grep -qi "PrismaClientInitializationError\|prisma.*connect.*ECONNREFUSED"; then
|
||||
root_cause="db_connection_refused"
|
||||
certainty="high"
|
||||
suggested_action="restart_container"
|
||||
details=$(echo "$logs" | grep -i "PrismaClientInitializationError\|ECONNREFUSED" | head -3 | tr '\n' '; ')
|
||||
|
||||
elif echo "$logs" | grep -qi "prisma.*ENOENT\|prisma.*does not exist"; then
|
||||
root_cause="prisma_schema_mismatch"
|
||||
certainty="high"
|
||||
details=$(echo "$logs" | grep -i "prisma.*ENOENT\|does not exist" | head -3 | tr '\n' '; ')
|
||||
|
||||
elif echo "$logs" | grep -qi "Can't reach database server\|getaddrinfo ENOTFOUND.*db\|postgres.*connect"; then
|
||||
root_cause="db_unreachable"
|
||||
certainty="high"
|
||||
suggested_action="restart_container"
|
||||
details=$(echo "$logs" | grep -i "ENOTFOUND\|Can't reach database" | head -3 | tr '\n' '; ')
|
||||
|
||||
# Network / connectivity
|
||||
elif echo "$logs" | grep -qi "ECONNREFUSED\|ECONNRESET\|ETIMEDOUT\|ENOTFOUND"; then
|
||||
root_cause="downstream_unreachable"
|
||||
certainty="medium"
|
||||
suggested_action="restart_container"
|
||||
details=$(echo "$logs" | grep -i "ECONNREFUSED\|ECONNRESET\|ETIMEDOUT\|ENOTFOUND" | head -3 | tr '\n' '; ')
|
||||
|
||||
# Rate limiting
|
||||
elif echo "$logs" | grep -qi "rate limit\|too many requests\|429"; then
|
||||
root_cause="rate_limit_exceeded"
|
||||
certainty="medium"
|
||||
suggested_action="hotfix_rate_limit"
|
||||
details=$(echo "$logs" | grep -i "rate limit\|too many" | head -3 | tr '\n' '; ')
|
||||
|
||||
# Auth / config
|
||||
elif echo "$logs" | grep -qi "jwt expired\|invalid token\|Unauthorized"; then
|
||||
root_cause="auth_config_error"
|
||||
certainty="medium"
|
||||
suggested_action="check_config"
|
||||
details=$(echo "$logs" | grep -i "jwt expired\|invalid token\|Unauthorized" | head -3 | tr '\n' '; ')
|
||||
|
||||
# 5xx patterns from health endpoint
|
||||
elif echo "$logs" | grep -qi "500\|Internal Server Error\|unhandled rejection\|uncaught exception"; then
|
||||
root_cause="unhandled_exception"
|
||||
certainty="medium"
|
||||
details=$(echo "$logs" | grep -i "unhandled\|uncaught\|500\|Internal Server Error" | head -3 | tr '\n' '; ')
|
||||
|
||||
# Next.js specific
|
||||
elif echo "$logs" | grep -qi "next.*error\|Error:.*page\|render.*error\|application.*error"; then
|
||||
root_cause="application_error"
|
||||
certainty="medium"
|
||||
details=$(echo "$logs" | grep -i "Error:\|render.*error" | head -3 | tr '\n' '; ')
|
||||
fi
|
||||
|
||||
# Extract original run config from inspect (if available) or use defaults
|
||||
local ports volumes network env_vars
|
||||
ports=$(docker inspect "$CONTAINER_NAME" --format '{{range $p, $conf := .HostConfig.PortBindings}}{{$p}} {{end}}' 2>/dev/null || echo "4014:3000")
|
||||
volumes=$(docker inspect "$CONTAINER_NAME" --format '{{range $v := .Mounts}}{{$v.Source}}:{{$v.Destination}} {{end}}' 2>/dev/null)
|
||||
network=$(docker inspect "$CONTAINER_NAME" --format '{{.HostConfig.NetworkMode}}' 2>/dev/null || echo "bridge")
|
||||
# If diagnosis gives strong signal, incorporate it
|
||||
case "$diagnosis" in
|
||||
oom_killed|sigkill)
|
||||
[ "$root_cause" = "unknown" ] && root_cause="container_killed_sigkill"
|
||||
suggested_action="rollback"
|
||||
;;
|
||||
db_down)
|
||||
[ "$root_cause" = "unknown" ] && root_cause="database_disconnected"
|
||||
suggested_action="restart_container"
|
||||
;;
|
||||
health_down)
|
||||
[ "$root_cause" = "unknown" ] && root_cause="container_unresponsive"
|
||||
;;
|
||||
gateway_down)
|
||||
root_cause="nginx_gateway_down"
|
||||
suggested_action="reload_gateway"
|
||||
certainty="high"
|
||||
;;
|
||||
esac
|
||||
|
||||
# Run rollback image with same config
|
||||
# Return structured report as JSON-like lines
|
||||
echo "ROOT_CAUSE=$root_cause"
|
||||
echo "CERTAINTY=$certainty"
|
||||
echo "ACTION=$suggested_action"
|
||||
echo "DETAILS=$details"
|
||||
}
|
||||
|
||||
# ── Phase 4: Restore Protocol ────────────────────────────────
|
||||
# Fast rollback to last known-good state, while capturing
|
||||
# full diagnostics for permanent fix later.
|
||||
|
||||
restore_protocol() {
|
||||
local diagnosis="$1"
|
||||
local root_cause="$2"
|
||||
local action="$3"
|
||||
local details="$4"
|
||||
local logs="$5"
|
||||
local incident_id
|
||||
incident_id="incident_$(date +%Y%m%d_%H%M%S)"
|
||||
|
||||
log "🚨 RESTORE PROTOCOL triggered — incident: $incident_id"
|
||||
log " Diagnosis: $diagnosis"
|
||||
log " Root cause: $root_cause"
|
||||
log " Action: $action"
|
||||
log " Details: $details"
|
||||
|
||||
# ── Step 0: Save full diagnostic context for later fix ─────
|
||||
{
|
||||
echo "=== INCIDENT REPORT: $incident_id ==="
|
||||
echo "Timestamp: $(date -u '+%Y-%m-%dT%H:%M:%SZ')"
|
||||
echo "Container: $CONTAINER_NAME"
|
||||
echo "Diagnosis: $diagnosis"
|
||||
echo "Root cause: $root_cause"
|
||||
echo "Certainty: $certainty"
|
||||
echo "Action: $action"
|
||||
echo "Details: $details"
|
||||
echo ""
|
||||
echo "=== Container Logs ==="
|
||||
echo "$logs"
|
||||
echo ""
|
||||
echo "=== Container Inspect ==="
|
||||
docker inspect "$CONTAINER_NAME" 2>/dev/null || echo "INSPECT_FAILED"
|
||||
echo ""
|
||||
echo "=== Docker Events (last 5 min) ==="
|
||||
timeout 5 docker events --since "${CHECK_INTERVAL}s" --until "$(date +%s)" \
|
||||
--filter "container=$CONTAINER_NAME" \
|
||||
--format '{{.Time}} {{.Type}} {{.Action}} {{.Status}}' 2>/dev/null || echo "EVENTS_FAILED"
|
||||
echo ""
|
||||
echo "=== System Resources ==="
|
||||
df -h / | tail -1
|
||||
free -m 2>/dev/null || echo "free_unavailable"
|
||||
echo "=== END INCIDENT REPORT ==="
|
||||
} > "$INCIDENTS_DIR/$incident_id.log"
|
||||
|
||||
log "📝 Incident saved to $INCIDENTS_DIR/$incident_id.log"
|
||||
alert "INFO" "Incident $incident_id logged — root cause: $root_cause"
|
||||
|
||||
# ── Step 1: Apply action ───────────────────────────────────
|
||||
case "$action" in
|
||||
rollback)
|
||||
log "🔄 RESTORE: rolling back to $ROLLBACK_IMAGE..."
|
||||
if docker images "$ROLLBACK_IMAGE" --format '{{.ID}}' | head -1 | grep -q .; then
|
||||
# Remove old container
|
||||
docker stop "$CONTAINER_NAME" 2>/dev/null || true
|
||||
sleep 2
|
||||
docker rm -f "$CONTAINER_NAME" 2>/dev/null || true
|
||||
sleep 2
|
||||
|
||||
# Recreate from rollback image
|
||||
local network
|
||||
network=$(docker inspect "$CONTAINER_NAME" --format '{{.HostConfig.NetworkMode}}' 2>/dev/null || echo "bridge")
|
||||
docker run -d \
|
||||
--name "$CONTAINER_NAME" \
|
||||
--restart unless-stopped \
|
||||
-p 4014:3000 \
|
||||
$volumes \
|
||||
-v /var/services/homes/admin/falah-mobile/data:/app/data \
|
||||
--network "$network" \
|
||||
"$ROLLBACK_IMAGE" >> "$LOG" 2>&1
|
||||
"$ROLLBACK_IMAGE" >> "$AGENT_LOG" 2>&1
|
||||
|
||||
sleep 15
|
||||
|
||||
if check_http "$HEALTH_URL" "direct" > /dev/null 2>&1; then
|
||||
log "✅ Rollback successful — previous image restored"
|
||||
alert "INFO" "Auto-healed: rolled back to $ROLLBACK_IMAGE"
|
||||
if check_http "$HEALTH_URL" > /dev/null 2>&1; then
|
||||
log "✅ RESTORE: rollback successful — service restored"
|
||||
alert "INFO" "Restore protocol: rolled back to $ROLLBACK_IMAGE (incident: $incident_id)"
|
||||
record_restart
|
||||
return 0
|
||||
else
|
||||
alert "CRITICAL" "Rollback also failed — manual intervention required"
|
||||
log "❌ RESTORE: rollback also failed — escalation needed"
|
||||
alert "CRITICAL" "Rollback failed for incident $incident_id — manual intervention"
|
||||
return 1
|
||||
fi
|
||||
else
|
||||
log "⚠️ No rollback image found — cannot rollback"
|
||||
alert "WARN" "No rollback image available"
|
||||
log "⚠️ RESTORE: no rollback image found — attempting restart instead"
|
||||
docker restart "$CONTAINER_NAME" >> "$AGENT_LOG" 2>&1
|
||||
sleep 10
|
||||
if check_http "$HEALTH_URL" > /dev/null 2>&1; then
|
||||
log "✅ RESTORE: restart successful (fallback)"
|
||||
record_restart
|
||||
return 0
|
||||
fi
|
||||
return 1
|
||||
fi
|
||||
}
|
||||
;;
|
||||
|
||||
remediate_gateway() {
|
||||
log "🔄 Remediation: reload nginx gateway"
|
||||
restart_container)
|
||||
log "🔄 RESTORE: restarting container..."
|
||||
docker restart "$CONTAINER_NAME" >> "$AGENT_LOG" 2>&1
|
||||
record_restart
|
||||
sleep 10
|
||||
if check_http "$HEALTH_URL" > /dev/null 2>&1; then
|
||||
log "✅ RESTORE: restart successful"
|
||||
return 0
|
||||
else
|
||||
log "⚠️ RESTORE: restart didn't fix — escalating to rollback"
|
||||
restore_protocol "$diagnosis" "restart_failed" "rollback" "$details" "$logs"
|
||||
fi
|
||||
;;
|
||||
|
||||
local gw_container
|
||||
gw_container=$(docker ps --format '{{.Names}}' | grep -i "gateway\|nginx" | head -1)
|
||||
|
||||
if [ -n "$gw_container" ]; then
|
||||
docker exec "$gw_container" nginx -s reload >> "$LOG" 2>&1
|
||||
reload_gateway)
|
||||
log "🔄 RESTORE: reloading nginx gateway..."
|
||||
local gw
|
||||
gw=$(docker ps --format '{{.Names}}' | grep -i "gateway\|nginx" | head -1)
|
||||
[ -n "$gw" ] && docker exec "$gw" nginx -s reload >> "$AGENT_LOG" 2>&1
|
||||
sleep 3
|
||||
if check_http "$GATEWAY_URL" "gateway" > /dev/null 2>&1; then
|
||||
log "✅ Gateway reload successful"
|
||||
alert "INFO" "Auto-healed: reloaded nginx in $gw_container"
|
||||
return 0
|
||||
fi
|
||||
fi
|
||||
log "⚠️ Could not reload gateway"
|
||||
check_http "$GATEWAY_URL" > /dev/null && log "✅ RESTORE: gateway restored" || log "⚠️ Gateway still down"
|
||||
;;
|
||||
|
||||
hotfix_rate_limit)
|
||||
log "🔄 RESTORE: rate limit issue — applying hotfix"
|
||||
# Rate limiter auto-clears stale entries every 5 min (code-level fix)
|
||||
# For immediate relief, restart container
|
||||
docker restart "$CONTAINER_NAME" >> "$AGENT_LOG" 2>&1
|
||||
record_restart
|
||||
sleep 10
|
||||
;;
|
||||
|
||||
check_config)
|
||||
log "🔄 RESTORE: config issue detected — rolling back to safe state"
|
||||
restore_protocol "$diagnosis" "config_error" "rollback" "$details" "$logs"
|
||||
;;
|
||||
|
||||
*)
|
||||
log "🔄 RESTORE: unknown action '$action' — attempting restart as safe default"
|
||||
docker restart "$CONTAINER_NAME" >> "$AGENT_LOG" 2>&1
|
||||
record_restart
|
||||
sleep 10
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
# ── Phase 5: Apply Quick Hotfix (when possible) ──────────────
|
||||
|
||||
apply_hotfix() {
|
||||
local root_cause="$1"
|
||||
local logs="$2"
|
||||
|
||||
case "$root_cause" in
|
||||
rate_limit_exceeded)
|
||||
log "🔧 HOTFIX: rate limit exceeded — restarting to clear state"
|
||||
docker restart "$CONTAINER_NAME" >> "$AGENT_LOG" 2>&1
|
||||
sleep 5
|
||||
log "🔧 HOTFIX: rate limiter now auto-cleans every 5 min (code fix in place)"
|
||||
;;
|
||||
|
||||
db_connection_refused|db_unreachable)
|
||||
log "🔧 HOTFIX: DB connection issue — restarting container"
|
||||
docker restart "$CONTAINER_NAME" >> "$AGENT_LOG" 2>&1
|
||||
sleep 10
|
||||
;;
|
||||
|
||||
*)
|
||||
log "🔧 HOTFIX: no quick fix for '$root_cause' — relying on restore protocol"
|
||||
return 1
|
||||
;;
|
||||
esac
|
||||
return 0
|
||||
}
|
||||
|
||||
remediate_prune() {
|
||||
log "🔄 Remediation: docker system prune (disk pressure)"
|
||||
docker system prune -f >> "$LOG" 2>&1
|
||||
# ── Periodic Maintenance ────────────────────────────────────
|
||||
|
||||
periodic_maintenance() {
|
||||
local disk_pct
|
||||
disk_pct=$(check_disk)
|
||||
if [ "$disk_pct" -gt 90 ]; then
|
||||
log "⚠️ Disk at ${disk_pct}% — running prune"
|
||||
docker system prune -f >> "$AGENT_LOG" 2>&1
|
||||
log "✅ Prune completed"
|
||||
alert "INFO" "Auto-healed: pruned Docker resources"
|
||||
}
|
||||
|
||||
remediate_escalate() {
|
||||
alert "CRITICAL" "Auto-heal unable to fix — escalation needed"
|
||||
# Future: send to PagerDuty, OpsGenie, Slack, etc.
|
||||
log "🚨 ESCALATION: Manual intervention required for $CONTAINER_NAME"
|
||||
fi
|
||||
}
|
||||
|
||||
# ── Main Loop ────────────────────────────────────────────────
|
||||
|
||||
log "══════════════════════════════════════════════════════"
|
||||
log "🚀 Auto-Healing Agent starting"
|
||||
log "🚀 SRE Auto-Healing Agent starting"
|
||||
log " Container: $CONTAINER_NAME"
|
||||
log " Health URL: $HEALTH_URL"
|
||||
log " Gateway URL: $GATEWAY_URL"
|
||||
log " Interval: ${CHECK_INTERVAL}s"
|
||||
log " Max restarts: $MAX_RESTARTS/hour"
|
||||
log " Incidents: $INCIDENTS_DIR"
|
||||
log "══════════════════════════════════════════════════════"
|
||||
|
||||
while true; do
|
||||
# ── Phase 1: Detect ──
|
||||
DIAGNOSIS=$(diagnose)
|
||||
CYCLE=0
|
||||
HEALTHY_CYCLES=0
|
||||
|
||||
# ── Phase 2: Act ──
|
||||
case "$DIAGNOSIS" in
|
||||
healthy)
|
||||
# All good — reset restart count if we've had consecutive healthy cycles
|
||||
if [ -z "$HEALTHY_CYCLES" ]; then HEALTHY_CYCLES=0; fi
|
||||
while true; do
|
||||
# ── Detect ──────────────────────────────────────────────
|
||||
DIAGNOSIS=$(detect_fault)
|
||||
|
||||
if [ "$DIAGNOSIS" = "healthy" ]; then
|
||||
# Stability counter — reset restart tracking after 5 min healthy
|
||||
HEALTHY_CYCLES=$((HEALTHY_CYCLES + 1))
|
||||
# After 10 healthy cycles (5 min), reset restart counter
|
||||
if [ "$HEALTHY_CYCLES" -ge 10 ]; then
|
||||
HEALTHY_CYCLES=0
|
||||
# Reset state file — system is stable now
|
||||
echo 0 > "$STATE_FILE" 2>/dev/null || true
|
||||
fi
|
||||
;;
|
||||
|
||||
container_missing)
|
||||
alert "CRITICAL" "Container $CONTAINER_NAME does not exist"
|
||||
;;
|
||||
|
||||
oom_killed|sigkill_oom)
|
||||
alert "WARN" "Container killed ($DIAGNOSIS) — restarting"
|
||||
# If we've had too many restarts, escalate to rollback
|
||||
local restarts
|
||||
restarts=$(count_restarts)
|
||||
if [ "$restarts" -ge "$MAX_RESTARTS" ]; then
|
||||
alert "CRITICAL" "OOM repeated ($restarts restarts/hour) — rolling back"
|
||||
remediate_rollback
|
||||
else
|
||||
remediate_container_restart "$DIAGNOSIS"
|
||||
# ── FAULT DETECTED ────────────────────────────────────
|
||||
HEALTHY_CYCLES=0
|
||||
log ""
|
||||
log "⚠️ FAULT DETECTED: $DIAGNOSIS"
|
||||
|
||||
# Step 1: Fetch logs
|
||||
log "📋 Fetching container logs..."
|
||||
CONTAINER_LOGS=$(fetch_logs 100)
|
||||
|
||||
# Step 2: Analyze logs against knowledge base
|
||||
log "🔍 Analyzing logs for root cause..."
|
||||
ANALYSIS=$(analyze_logs "$DIAGNOSIS" "$CONTAINER_LOGS")
|
||||
|
||||
# Parse analysis output
|
||||
ROOT_CAUSE=$(echo "$ANALYSIS" | grep "^ROOT_CAUSE=" | cut -d= -f2-)
|
||||
CERTAINTY=$(echo "$ANALYSIS" | grep "^CERTAINTY=" | cut -d= -f2-)
|
||||
ACTION=$(echo "$ANALYSIS" | grep "^ACTION=" | cut -d= -f2-)
|
||||
DETAILS=$(echo "$ANALYSIS" | grep "^DETAILS=" | cut -d= -f2-)
|
||||
|
||||
log " Root cause: $ROOT_CAUSE (certainty: $CERTAINTY)"
|
||||
log " Action: $ACTION"
|
||||
[ -n "$DETAILS" ] && log " Details: $DETAILS"
|
||||
|
||||
# Step 3: Decision — can we hotfix or need restore protocol?
|
||||
restarts=$(count_restarts)
|
||||
|
||||
if [ "$restarts" -ge "$MAX_RESTARTS" ]; then
|
||||
# Too many restarts — go straight to restore protocol
|
||||
log "⚠️ $restarts restarts in last hour — exceeding limit of $MAX_RESTARTS"
|
||||
log "🚨 SKIPPING hotfix attempt — going directly to restore protocol"
|
||||
restore_protocol "$DIAGNOSIS" "$ROOT_CAUSE" "rollback" "$DETAILS" "$CONTAINER_LOGS"
|
||||
|
||||
elif [ "$ACTION" = "rollback" ]; then
|
||||
# Knowledge base says rollback — run restore protocol
|
||||
restore_protocol "$DIAGNOSIS" "$ROOT_CAUSE" "$ACTION" "$DETAILS" "$CONTAINER_LOGS"
|
||||
|
||||
elif [ "$ACTION" = "restart_container" ]; then
|
||||
# Try restart first, escalate if fails
|
||||
log "🔄 Attempting restart (restart #$restarts)..."
|
||||
apply_hotfix "$ROOT_CAUSE" "$CONTAINER_LOGS"
|
||||
sleep 10
|
||||
if [ "$(detect_fault)" != "healthy" ]; then
|
||||
log "⚠️ Restart didn't resolve — escalating to restore protocol"
|
||||
restore_protocol "$DIAGNOSIS" "$ROOT_CAUSE" "rollback" "$DETAILS" "$CONTAINER_LOGS"
|
||||
fi
|
||||
;;
|
||||
|
||||
crashed_*|not_running)
|
||||
alert "WARN" "Container crashed ($DIAGNOSIS)"
|
||||
remediate_container_restart "$DIAGNOSIS"
|
||||
;;
|
||||
elif [ "$ACTION" = "reload_gateway" ]; then
|
||||
restore_protocol "$DIAGNOSIS" "$ROOT_CAUSE" "$ACTION" "$DETAILS" "$CONTAINER_LOGS"
|
||||
|
||||
health_unreachable)
|
||||
alert "WARN" "Health endpoint unreachable"
|
||||
remediate_container_restart "$DIAGNOSIS"
|
||||
;;
|
||||
elif [ "$ACTION" = "hotfix_rate_limit" ]; then
|
||||
apply_hotfix "$ROOT_CAUSE" "$CONTAINER_LOGS"
|
||||
|
||||
db_disconnected)
|
||||
alert "WARN" "Database disconnected"
|
||||
remediate_container_restart "$DIAGNOSIS"
|
||||
;;
|
||||
|
||||
health_invalid)
|
||||
alert "WARN" "Health response invalid"
|
||||
remediate_container_restart "$DIAGNOSIS"
|
||||
;;
|
||||
|
||||
gateway_down)
|
||||
alert "WARN" "Gateway down"
|
||||
remediate_gateway
|
||||
;;
|
||||
|
||||
*)
|
||||
alert "WARN" "Unknown diagnosis: $DIAGNOSIS"
|
||||
remediate_container_restart "$DIAGNOSIS"
|
||||
;;
|
||||
esac
|
||||
|
||||
# ── Periodic maintenance ──
|
||||
# Check disk every 10 cycles (5 min at 30s interval)
|
||||
CYCLE_COUNTER=$((CYCLE_COUNTER + 1))
|
||||
if [ "$CYCLE_COUNTER" -ge 10 ]; then
|
||||
CYCLE_COUNTER=0
|
||||
DISK_PCT=$(check_disk)
|
||||
if [ "$DISK_PCT" -gt 90 ]; then
|
||||
alert "WARN" "Disk at ${DISK_PCT}% — pruning"
|
||||
remediate_prune
|
||||
else
|
||||
# No specific action — safe default: restart, then rollback
|
||||
log "🔄 No specific fix for '$ROOT_CAUSE' — attempting restart"
|
||||
docker restart "$CONTAINER_NAME" >> "$AGENT_LOG" 2>&1
|
||||
record_restart
|
||||
sleep 10
|
||||
[ "$(detect_fault)" != "healthy" ] && restore_protocol "$DIAGNOSIS" "$ROOT_CAUSE" "rollback" "$DETAILS" "$CONTAINER_LOGS"
|
||||
fi
|
||||
fi
|
||||
|
||||
# ── Periodic maintenance (every 10 cycles = 5 min) ─────
|
||||
CYCLE=$((CYCLE + 1))
|
||||
[ "$CYCLE" -ge 10 ] && { CYCLE=0; periodic_maintenance; }
|
||||
|
||||
sleep "$CHECK_INTERVAL"
|
||||
done
|
||||
|
||||
Reference in New Issue
Block a user