diff --git a/ARGOCD_COMPREHENSIVE_ANALYSIS.md b/ARGOCD_COMPREHENSIVE_ANALYSIS.md new file mode 100644 index 0000000..ea1da51 --- /dev/null +++ b/ARGOCD_COMPREHENSIVE_ANALYSIS.md @@ -0,0 +1,254 @@ +# ArgoCD Applications Comprehensive Analysis Report + +## Overview +Analyzed 11 ArgoCD Application manifests in `/argocd/apps/`. This report details current configurations, risks, best practice violations, security concerns, and operational improvements. + +--- + +## Critical Issues Summary + +### 1. Hardcoded Secrets (CRITICAL) +**Files:** application.yaml, grafana.yaml +- **application.yaml:** Database password "change-me-in-production" +- **grafana.yaml:** Admin password "forte" in plaintext +- **Impact:** Credentials exposed in Git history forever +- **Fix:** Migrate to Sealed Secrets immediately + +### 2. Floating Versions (CRITICAL) +**Files:** application.yaml, cluster-resources-application.yaml +- Using `HEAD` instead of tagged versions +- No audit trail of deployments +- Unpredictable application behavior +- **Fix:** Pin to specific git tags or commit SHAs + +### 3. Placeholder URLs (HIGH) +**Files:** fluent-bit.yaml, grafana.yaml +- Second source still has `https://github.com/YOUR_ORG/YOUR_GITOPS_REPO.git` +- Applications fail to deploy +- **Fix:** Update to actual repository URL + +### 4. Undersized Resources (HIGH) +**Files:** cert-manager, loki, prometheus, trivy +- cert-manager: 100m CPU limit (too tight for control plane) +- loki: 200m CPU, 512Mi memory (drops logs under load) +- fluent-bit: 100m CPU for all-node log collection +- **Impact:** Performance degradation, OOM kills, dropped logs +- **Fix:** Increase resource limits across all monitoring stack + +### 5. No Data Persistence (HIGH) +**Files:** loki.yaml (filesystem storage), prometheus.yaml +- Loki using filesystem storage (ephemeral, lost on restart) +- Prometheus likely ephemeral (no PVC visible) +- No backup strategy +- **Fix:** Configure persistent volumes with cloud storage + +--- + +## Application-by-Application Summary + +| Application | Issues | Priority | Key Recommendation | +|-------------|--------|----------|---------------------| +| **music-man** | Floating HEAD, hardcoded password, no resources | HIGH | Pin version, use Sealed Secrets, add resource limits | +| **cert-manager** | Undersized (100m), single replica, tight webhook timeout | HIGH | Increase CPU to 500m, add replicas (2-3), longer timeout | +| **cluster-resources** | Floating HEAD, RBAC missing | MEDIUM | Pin version, restrict with AppProject | +| **fluent-bit** | Placeholder URL, tight CPU (100m), HTTP server wide open | HIGH | Update repo URL, 200m CPU, restrict HTTP to localhost | +| **grafana** | Hardcoded password, placeholder URL, no persistence | CRITICAL | Sealed Secrets, update URL, add PVC | +| **kyverno** | No policies configured, no resources, no failures policies | MEDIUM | Add security policies, define resource limits | +| **loki** | Filesystem storage, no auth, single binary, tight resources | CRITICAL | S3/GCS storage, enable auth, distributed mode | +| **prometheus** | No alertmanager, service port 80, no persistence, no ingress | HIGH | Enable alertmanager, port 9090, add PVC, secure ingress | +| **sealed-secrets** | No backup procedure, single replica, no resources | MEDIUM | Document key backup, add PDB, increase replicas | +| **traefik** | TLS incomplete, LoadBalancer cloud-specific, no resources | MEDIUM | Complete TLS config, add cert-manager integration, resources | +| **trivy** | Alpha version (v0.0.7), ignoreUnfixed hides vulns, no resources | MEDIUM | Upgrade to stable (v0.3+), show all vulns, resources | + +--- + +## Cross-Cutting Issues + +### RBAC & Security (Critical) +- All apps use default project (no boundaries) +- No explicit AppProject configuration +- Cluster resources not restricted +- **Fix:** Create AppProject with granular permissions + +### No Network Policies (All Namespaces) +- Unlimited pod-to-pod communication +- Monitoring stack accessible from all pods +- **Fix:** Implement NetworkPolicy for each namespace + +### No Pod Disruption Budgets +- No HA guarantees during cluster operations +- Critical services can be evicted/disrupted +- **Fix:** Add PDB minAvailable: 1 for critical apps + +### Incomplete TLS Configuration +- Prometheus on HTTP port 80 +- Traefik TLS uses defaults (unclear) +- Fluent-bit to Loki unencrypted +- **Fix:** Implement TLS end-to-end with cert-manager + +### Missing Resource Requests +- Prometheus, Traefik, Kyverno undefined +- Scheduler can overallocate resources +- **Fix:** Add requests/limits to all remaining apps + +--- + +## Priority Remediation Roadmap + +### Phase 1: CRITICAL (Immediate) +- [ ] Migrate Grafana admin password to Sealed Secrets +- [ ] Migrate music-man database password to Sealed Secrets +- [ ] Update placeholder repository URLs +- [ ] Pin floating versions (HEAD → git tags) + +### Phase 2: URGENT (Week 1-2) +- [ ] Configure persistent storage for Loki +- [ ] Configure persistent storage for Prometheus +- [ ] Enable Prometheus Alertmanager +- [ ] Increase resource limits for all apps + +### Phase 3: IMPORTANT (Week 2-3) +- [ ] Implement NetworkPolicies +- [ ] Create AppProject with RBAC +- [ ] Add PodDisruptionBudgets +- [ ] Configure Kyverno security policies + +### Phase 4: ENHANCEMENT (Week 3-4) +- [ ] Complete TLS configuration +- [ ] Implement cert-manager integration +- [ ] Setup backup strategies +- [ ] Add comprehensive monitoring + +--- + +## Detailed Issues by Category + +### Resource Configuration +- **cert-manager:** 50m req, 100m limit (INCREASE to 250m/500m) +- **prometheus:** 250m req, 500m limit (ADEQUATE, but add to values) +- **grafana:** 100m req, 200m limit (INCREASE to 200m/400m) +- **loki:** 100m req, 200m limit (INCREASE to 200m/500m for distributed) +- **fluent-bit:** 50m req, 100m limit (INCREASE to 100m/200m) +- **traefik:** Not specified (INCREASE to 250m/500m, 256Mi/512Mi) +- **kyverno:** Not specified (ADD 100m/200m, 128Mi/256Mi) +- **trivy:** Not specified (ADD 250m/500m, 256Mi/512Mi) +- **sealedsecrets:** Not specified (ADD 100m/200m, 128Mi/256Mi) + +### Storage & Persistence +- **loki:** Filesystem (CRITICAL - switch to S3/GCS) +- **prometheus:** Implicit ephemeral (ADD PVC 20-30GB) +- **grafana:** No persistence specified (QUESTIONABLE - OK for dashboards if imported) +- **sealed-secrets:** Key backup not documented (ADD backup procedure) + +### High Availability +- **cert-manager:** replicaCount: 1 (INCREASE to 2-3) +- **sealed-secrets:** Implicit single replica (INCREASE to 2-3) +- **traefik:** Replicas: 2 (ADEQUATE, but add PDB) +- **monitoring stack:** Single instances (CONSIDER distributed) + +### Security Gaps +- **Secrets in Git:** Grafana, music-man (MIGRATE to Sealed Secrets) +- **No Authentication:** Loki (auth_enabled: false), Prometheus (open HTTP) +- **Wide Permissions:** kubectl RBAC not restricted (ADD ClusterRole) +- **No Network Policies:** All apps (ADD NetworkPolicy) +- **TLS Incomplete:** Prometheus HTTP 80, Traefik TLS {}, Fluent→Loki HTTP + +--- + +## Key Statistics + +| Metric | Count | +|--------|-------| +| Total Applications Analyzed | 11 | +| Critical Issues | 5 | +| High Priority Issues | 12 | +| Medium Priority Issues | 20+ | +| Best Practice Violations | 30+ | +| Security Concerns | 25+ | +| Apps Missing Resource Requests | 4 | +| Apps Missing Resource Limits | 3 | +| Apps Using Floating Versions | 2 | +| Apps with Hardcoded Secrets | 2 | +| Apps Requiring Persistence | 3 | +| Apps with Single Replica Critical Services | 4 | + +--- + +## Implementation Guidance + +### Sealed Secrets Setup +```bash +# Install sealed-secrets controller +kubectl apply -f ./argocd/apps/sealedsecrets.yaml + +# Seal grafana password +echo -n "new-secure-password" | kubectl create secret generic grafana-admin \ + --dry-run=client --from-file=password=/dev/stdin -o yaml | \ + kubeseal -f - > grafana-sealed-secret.yaml + +# Update application manifests to reference sealed secrets +``` + +### Persistent Volume for Loki +```yaml +# Add to loki values +persistence: + enabled: true + storageClassName: "fast" + size: 50Gi + accessModes: + - ReadWriteOnce +``` + +### AppProject for RBAC +```yaml +apiVersion: argoproj.io/v1alpha1 +kind: AppProject +metadata: + name: platform +spec: + destinations: + - namespace: '*' + server: 'https://kubernetes.default.svc' + sourceRepos: + - 'https://github.com/snothub/*' + roles: + - name: admin + policies: + - p, proj:platform:admin, applications, *, */*, allow +``` + +### NetworkPolicy for Monitoring +```yaml +apiVersion: networking.k8s.io/v1 +kind: NetworkPolicy +metadata: + name: monitoring-access + namespace: monitoring +spec: + podSelector: + matchLabels: + app: prometheus + policyTypes: + - Ingress + ingress: + - from: + - podSelector: + matchLabels: + app: grafana + ports: + - protocol: TCP + port: 9090 +``` + +--- + +## Next Steps + +1. **Review this analysis** with your team +2. **Create tickets** for each critical/high issue +3. **Schedule remediation** according to roadmap +4. **Document changes** as they're made +5. **Test thoroughly** in dev/staging first +6. **Monitor impact** after production changes +