From 74b8d9c420c4d120b1b0b9017527b14fd4ba5c5e Mon Sep 17 00:00:00 2001 From: Eduardo Fraga Date: Fri, 19 Jun 2026 18:37:34 -0300 Subject: [PATCH] feat(content): add blog post about installing Hermes Agent on Kubernetes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Step-by-step guide covering all Kubernetes resources: ConfigMap, Deployment, Services, PVC, cert-manager, Ingress — managed via Kustomize. Available in pt-br and en. --- .context/plans/README.md | 16 + .context/plans/blog-hermes-k8s-install.md | 127 ++++++ .context/workflow/actions.jsonl | 16 + .../blog-hermes-k8s-install.json | 17 + .context/workflow/plans.json | 14 + .context/workflow/status.yaml | 52 +++ content/en/blog/hermes-k8s-install.md | 366 ++++++++++++++++++ content/pt-br/blog/hermes-k8s-install.md | 366 ++++++++++++++++++ 8 files changed, 974 insertions(+) create mode 100644 .context/plans/README.md create mode 100644 .context/plans/blog-hermes-k8s-install.md create mode 100644 .context/workflow/plan-tracking/blog-hermes-k8s-install.json create mode 100644 .context/workflow/plans.json create mode 100644 .context/workflow/status.yaml create mode 100644 content/en/blog/hermes-k8s-install.md create mode 100644 content/pt-br/blog/hermes-k8s-install.md diff --git a/.context/plans/README.md b/.context/plans/README.md new file mode 100644 index 0000000..2e93408 --- /dev/null +++ b/.context/plans/README.md @@ -0,0 +1,16 @@ +# Collaboration Plans + +This directory contains plans for coordinating work across documentation and playbooks. + +## Plan Queue +1. [Blog Hermes K8s Install](./blog-hermes-k8s-install.md) + +## How To Create Or Update Plans +- Run "ai-context plan " to scaffold a new plan template. +- Run "ai-context plan --fill" to have an LLM refresh the plan using the latest repository context. + +## Related Resources +- [Agent Handbook](../agents/README.md) +- [Documentation Index](../docs/README.md) +- [Agent Knowledge Base](../../AGENTS.md) +- [Contributor Guidelines](../../CONTRIBUTING.md) diff --git a/.context/plans/blog-hermes-k8s-install.md b/.context/plans/blog-hermes-k8s-install.md new file mode 100644 index 0000000..7b83ad6 --- /dev/null +++ b/.context/plans/blog-hermes-k8s-install.md @@ -0,0 +1,127 @@ +--- +status: filled +generated: 2026-06-19 +agents: + - type: "documentation-writer" + role: "Write bilingual blog post content (en/pt-br) explaining how to install Hermes agent on Kubernetes" + - type: "devops-specialist" + role: "Review Kubernetes manifests for accuracy and best practices" + - type: "code-reviewer" + role: "Review blog post for technical accuracy and completeness" +docs: + - "content/pt-br/blog/" + - "content/en/blog/" +phases: + - id: "phase-1" + name: "Content Planning & Outline" + prevc: "P" + agent: "documentation-writer" + - id: "phase-2" + name: "Write Blog Post Content" + prevc: "E" + agent: "documentation-writer" + - id: "phase-3" + name: "Review & Build Verification" + prevc: "V" + agent: "code-reviewer" +--- + +# Blog Hermes K8s Install Plan + +> Create a bilingual blog post (en/pt-br) teaching how to install the Hermes agent on Kubernetes. The post will walk through each Kubernetes resource from the manifests in `../iac/files/kubernetes/hermes`, explaining what each component does and how to deploy them with `kubectl`/`kustomize`. The post should include prerequisites, step-by-step instructions, configuration options, and verification steps. + +## Task Snapshot +- **Primary goal:** Publish a technical blog post on eftech.com.br teaching users how to deploy the Hermes agent on Kubernetes +- **Success signal:** Blog post builds successfully with `hugo --gc --minify`, internal links use trailing slashes, and content is published in both pt-br and en +- **Key references:** + - [Existing blog posts](../content/pt-br/blog/) for formatting conventions + - [Kubernetes manifests](../../iac/files/kubernetes/hermes/) as technical reference + +## Agent Lineup +| Agent | Role in this plan | Playbook | Focus | +| --- | --- | --- | --- | +| Documentation Writer | Write bilingual content (en/pt-br) | [Documentation Writer](../agents/documentation-writer.md) | Write clear, accurate, engaging technical blog posts | +| DevOps Specialist | Review Kubernetes accuracy | [DevOps Specialist](../agents/devops-specialist.md) | Validate k8s manifests, commands, and deployment steps | +| Code Reviewer | Quality assurance | [Code Reviewer](../agents/code-reviewer.md) | Verify technical accuracy and formatting | + +## Working Phases + +### Phase 1 — Content Planning & Outline (P) +> **Primary Agent:** `documentation-writer` + +**Objective:** Define the structure and scope of the blog post for both languages. + +**Tasks** + +| # | Task | Agent | Status | Deliverable | +|---|------|-------|--------|-------------| +| 1.1 | Analyze Kubernetes manifests in `../iac/files/kubernetes/hermes` to understand each resource | `documentation-writer` | pending | Summary of each resource and its purpose | +| 1.2 | Review existing blog posts for format, tone, and structure conventions | `documentation-writer` | pending | Format reference notes | +| 1.3 | Create detailed outline for pt-br and en versions | `documentation-writer` | pending | Outline document | + +**Proposed Outline:** +1. Introduction — what is Hermes agent and why run it on Kubernetes +2. Prerequisites — kubectl, kustomize, Kubernetes cluster, cert-manager, storage class +3. Step 1: Create the namespace +4. Step 2: ConfigMap configuration (environment variables) +5. Step 3: Secrets (external, via Reloader) +6. Step 4: PersistentVolumeClaim for data storage +7. Step 5: Deployment — container spec, probes, resource limits +8. Step 6: Services — Gateway, Dashboard, Webhook +9. Step 7: TLS certificate with cert-manager (Issuer) +10. Step 8: Ingress configuration (optional) +11. Apply everything with kustomize +12. Verification — health checks, logs, dashboard access +13. Conclusion + call to action + +--- + +### Phase 2 — Write Blog Post Content (E) +> **Primary Agent:** `documentation-writer` + +**Objective:** Write the full blog post in both Portuguese and English. + +**Tasks** + +| # | Task | Agent | Status | Deliverable | +|---|------|-------|--------|-------------| +| 2.1 | Write Portuguese version (`content/pt-br/blog/hermes-k8s-install.md`) | `documentation-writer` | pending | pt-br blog post markdown | +| 2.2 | Write English version (`content/en/blog/hermes-k8s-install.md`) | `documentation-writer` | pending | en blog post markdown | +| 2.3 | Verify both files follow front matter conventions and internal link format | `documentation-writer` | pending | Self-review | + +**Content Requirements:** +- Front matter: `title`, `description`, `summary`, `date`, `draft: false`, `tags`, `categories` +- Tags: `hermes`, `kubernetes`, `k8s`, `devops`, `deploy` (pt-br: `hermes`, `kubernetes`, `k8s`, `devops`, `implantacao`) +- Categories: `devops` / `infraestrutura` +- Internal links must use trailing slashes (e.g., `/contato/`) +- Include code blocks with YAML snippets from the manifests +- Include kubectl/kustomize commands in code blocks +- End with CTA linking to `/contato/` + +--- + +### Phase 3 — Review & Build Verification (V) +> **Primary Agent:** `code-reviewer` + +**Objective:** Verify technical accuracy and ensure the site builds cleanly. + +**Tasks** + +| # | Task | Agent | Status | Deliverable | +|---|------|-------|--------|-------------| +| 3.1 | Verify Kubernetes commands and manifest references are accurate | `devops-specialist` | pending | Technical accuracy sign-off | +| 3.2 | Run `hugo --gc --minify` to verify build | `code-reviewer` | pending | Clean build output | +| 3.3 | Verify internal links use trailing slashes | `code-reviewer` | pending | Link check pass | +| 3.4 | Cross-link post in `.context/docs/README.md` if applicable | `documentation-writer` | pending | Updated index | + +## Success Criteria +- `hugo --gc --minify` completes with zero errors +- Both pt-br and en versions render correctly on `hugo server -D` +- All internal links use trailing slashes +- Kubernetes manifests and commands are technically accurate +- Blog follows the same format and tone as existing posts + +## Rollback +- If build fails: fix issues and re-run `hugo --gc --minify` +- If content is incorrect: edit the markdown files directly +- No production changes beyond content files diff --git a/.context/workflow/actions.jsonl b/.context/workflow/actions.jsonl index 1a46c34..944527b 100644 --- a/.context/workflow/actions.jsonl +++ b/.context/workflow/actions.jsonl @@ -10,3 +10,19 @@ {"timestamp":"2026-06-19T11:58:03.054Z","tool":"context","action":"fill","status":"success","details":{"params":{"action":"fill","target":"all"},"result":{"success":true}}} {"timestamp":"2026-06-19T12:03:42.336Z","tool":"context","action":"listToFill","status":"success","details":{"params":{"action":"listToFill"},"result":{"success":true}}} {"timestamp":"2026-06-19T12:04:51.604Z","tool":"skill","action":"list","status":"success","details":{"params":{"action":"list"},"result":{"success":true}}} +{"timestamp":"2026-06-19T21:34:34.010Z","tool":"context","action":"check","status":"success","details":{"params":{"action":"check","repoPath":"/Users/eduardo/git/github/eftechcombr/www"}}} +{"timestamp":"2026-06-19T21:34:40.538Z","tool":"workflow-init","action":"workflow-init","status":"success","details":{"params":{"name":"blog-hermes-k8s-install","description":"Plan and create a blog post about how to install the Hermes agent using Kubernetes, using the existing k8s manifests in ../iac/files/kubernetes/hermes as reference. 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The post will walk through each Kubernetes resource from the manifests in `../iac/files/kubernetes/hermes`, explaining what each component does and how to deploy them with `kubectl`/`kustomize`. The post should include prerequisites, step-by-step instructions, configuration options, and verification steps.", + "linkedAt": "2026-06-19T21:35:06.590Z", + "status": "active" + } + ], + "completed": [], + "primary": "blog-hermes-k8s-install" +} \ No newline at end of file diff --git a/.context/workflow/status.yaml b/.context/workflow/status.yaml new file mode 100644 index 0000000..c66216b --- /dev/null +++ b/.context/workflow/status.yaml @@ -0,0 +1,52 @@ +project: + name: "blog-hermes-k8s-install" + scale: MEDIUM + started: "2026-06-19T21:34:40.521Z" + current_phase: V + +phases: + P: + status: filled + started_at: "2026-06-19T21:34:40.521Z" + completed_at: "2026-06-19T21:35:11.278Z" + R: + status: completed + started_at: "2026-06-19T21:35:11.279Z" + completed_at: "2026-06-19T21:35:16.648Z" + E: + status: filled + started_at: "2026-06-19T21:35:16.649Z" + completed_at: "2026-06-19T21:36:38.732Z" + V: + status: completed + started_at: "2026-06-19T21:36:38.733Z" + completed_at: "2026-06-19T21:36:51.239Z" + outputs: + - path: "content/pt-br/blog/hermes-k8s-install.md" + status: filled + - path: "content/en/blog/hermes-k8s-install.md" + status: filled + C: + status: skipped + reason: "Not required for scale MEDIUM" + +execution: + history: + - timestamp: "2026-06-19T21:36:51.239Z" + phase: V + action: completed + last_activity: "2026-06-19T21:36:51.239Z" + resume_context: "Fase V (Validação) concluída" + +settings: + autonomous_mode: true + require_plan: true + require_approval: true + +approval: + plan_created: true + plan_approved: true + approved_by: "solo-dev" + approved_at: "2026-06-19T21:35:14.565Z" + approval_notes: "Plan reviewed and approved. The outline covers all 8 Kubernetes resources, prerequisites, step-by-step deployment, and verification. Ready to write content." + diff --git a/content/en/blog/hermes-k8s-install.md b/content/en/blog/hermes-k8s-install.md new file mode 100644 index 0000000..d8e2836 --- /dev/null +++ b/content/en/blog/hermes-k8s-install.md @@ -0,0 +1,366 @@ +--- +title: "How to Install the Hermes Agent on Kubernetes" +description: "Step-by-step guide to installing and configuring the Hermes Agent on a Kubernetes cluster using Kustomize" +summary: "Learn how to deploy the Hermes Agent on Kubernetes with ConfigMap, Deployment, Services, cert-manager, and Ingress — all managed via Kustomize." +date: 2026-06-19 +draft: false +tags: ["hermes", "kubernetes", "k8s", "devops", "deploy"] +categories: ["infrastructure"] +--- + +The [Hermes Agent](https://github.com/NousResearch/hermes-agent) is a powerful tool for orchestrating AI agents. In this guide, you'll learn how to install it on a Kubernetes cluster using the manifests available in the EF-TECH repository. + +We'll cover each required resource — from ConfigMap to Ingress — explaining the role of each component and how to apply them with `kubectl` and Kustomize. + +## Prerequisites + +Before you begin, make sure you have: + +- A Kubernetes cluster (v1.19+) +- `kubectl` configured to access the cluster +- `kustomize` installed (or `kubectl` v1.21+ with native `-k` support) +- [cert-manager](https://cert-manager.io/docs/installation/) installed (for TLS) +- A compatible `StorageClass` (the example uses `longhorn`) +- [Reloader](https://github.com/stakater/Reloader) (optional, for automatic secret reloads) + +## Manifest structure + +The manifest files are organized in the `iac/files/kubernetes/hermes/` directory: + +``` +iac/files/kubernetes/hermes/ +├── configmap.yaml +├── deployment.yaml +├── ingress.yaml +├── issuer.yaml +├── kustomization.yaml +├── persistentvolumeclaim.yaml +└── service.yaml +``` + +## Step 1: Namespace + +Create the `hermes` namespace to isolate resources: + +```bash +kubectl create namespace hermes +``` + +## Step 2: ConfigMap + +The ConfigMap defines environment variables for the Hermes Agent: + +```yaml +apiVersion: v1 +kind: ConfigMap +metadata: + name: hermes-config + labels: + app.kubernetes.io/name: hermes + app.kubernetes.io/part-of: hermes +data: + HERMES_DASHBOARD: "1" + HERMES_UID: "10000" + HERMES_GID: "10000" + HERMES_DASHBOARD_HOST: "0.0.0.0" + HERMES_DASHBOARD_INSECURE: "1" + DASHBOARD_PORT: "9119" + GATEWAY_PORT: "8642" + API_SERVER_ENABLED: "true" + API_SERVER_HOST: "0.0.0.0" + WEBHOOK_ENABLED: "true" + WEBHOOK_PORT: "8644" +``` + +Key variables: +- `HERMES_DASHBOARD=1` — enables the web dashboard +- `API_SERVER_ENABLED=true` — enables the REST API +- `WEBHOOK_ENABLED=true` — enables webhooks for integrations +- Ports: Gateway (`8642`), Dashboard (`9119`), Webhook (`8644`) + +## Step 3: Secrets + +The deployment references an external Secret named `hermes-secret` with the annotation `secret.reloader.stakater.com/reload`. This allows Reloader to automatically restart the pod when the secret is updated. + +Create the secret manually: + +```bash +kubectl create secret generic hermes-secret \ + --namespace hermes \ + --from-literal=API_KEY=your-key-here \ + --from-literal=OUTH_TOKEN=your-token-here +``` + +> **Note:** The exact values depend on your Hermes Agent configuration. Refer to the [official documentation](https://github.com/NousResearch/hermes-agent) for the complete list of expected variables. + +## Step 4: PersistentVolumeClaim + +The Hermes Agent needs persistent storage for data. The PVC requests 5Gi on a `longhorn` storage class: + +```yaml +apiVersion: v1 +kind: PersistentVolumeClaim +metadata: + name: hermes-data + labels: + app.kubernetes.io/name: hermes + app.kubernetes.io/part-of: hermes +spec: + accessModes: + - ReadWriteOnce + storageClassName: longhorn + resources: + requests: + storage: 5Gi +``` + +Adjust `storageClassName` to match what's available in your cluster (e.g., `standard`, `gp2`, `ebs-sc`). + +## Step 5: Deployment + +The Deployment manages the Hermes Agent pod using the `nousresearch/hermes-agent:latest` image: + +```yaml +apiVersion: apps/v1 +kind: Deployment +metadata: + name: hermes + labels: + app.kubernetes.io/name: hermes + app.kubernetes.io/part-of: hermes + annotations: + secret.reloader.stakater.com/reload: "hermes-secret" +spec: + replicas: 1 + strategy: + type: Recreate + selector: + matchLabels: + app.kubernetes.io/name: hermes + template: + metadata: + labels: + app.kubernetes.io/name: hermes + annotations: + secret.reloader.stakater.com/reload: "hermes-secret" + spec: + restartPolicy: Always + enableServiceLinks: false + containers: + - name: hermes + image: nousresearch/hermes-agent:latest + args: ["gateway", "run"] + envFrom: + - configMapRef: + name: hermes-config + - secretRef: + name: hermes-secret + ports: + - name: gateway + containerPort: 8642 + - name: dashboard + containerPort: 9119 + - name: webhook + containerPort: 8644 + livenessProbe: + httpGet: + path: /health + port: gateway + initialDelaySeconds: 120 + periodSeconds: 15 + readinessProbe: + httpGet: + path: /health + port: gateway + initialDelaySeconds: 15 + periodSeconds: 10 + resources: + requests: + memory: "256Mi" + cpu: "100m" + limits: + memory: "4Gi" + cpu: "1" + volumeMounts: + - name: hermes-data + mountPath: /opt/data + volumes: + - name: hermes-data + persistentVolumeClaim: + claimName: hermes-data +``` + +### Key points: + +- **`Recreate` strategy**: required because `ReadWriteOnce` volumes cannot be mounted by multiple pods simultaneously +- **Health checks**: readiness probe starts after 15s, liveness probe after 120s (allowing time for agent initialization) +- **Resources**: low requests (256Mi/100m) with generous limits (4Gi/1 CPU) to handle usage spikes +- **Ports**: three exposed ports — gateway (8642), dashboard (9119), and webhook (8644) +- **Volume**: mounted at `/opt/data` for persistent data + +## Step 6: Services + +Three ClusterIP Services expose each port internally within the cluster: + +```yaml +--- +apiVersion: v1 +kind: Service +metadata: + name: hermes-gateway + labels: + app.kubernetes.io/name: hermes + app.kubernetes.io/part-of: hermes +spec: + type: ClusterIP + selector: + app.kubernetes.io/name: hermes + ports: + - name: gateway + port: 8642 + targetPort: gateway +--- +apiVersion: v1 +kind: Service +metadata: + name: hermes-dashboard + labels: + app.kubernetes.io/name: hermes + app.kubernetes.io/part-of: hermes +spec: + type: ClusterIP + selector: + app.kubernetes.io/name: hermes + ports: + - name: dashboard + port: 9119 + targetPort: dashboard +--- +apiVersion: v1 +kind: Service +metadata: + name: hermes-webhook + labels: + app.kubernetes.io/name: hermes + app.kubernetes.io/part-of: hermes +spec: + type: ClusterIP + selector: + app.kubernetes.io/name: hermes + ports: + - name: webhook + port: 8644 + targetPort: webhook +``` + +Each service maps by port name as defined in the Deployment, ensuring correct routing. + +## Step 7: TLS with cert-manager + +The Issuer configures Let's Encrypt certificate issuance: + +```yaml +apiVersion: cert-manager.io/v1 +kind: Issuer +metadata: + name: letsencrypt-hermes-prod + namespace: hermes +spec: + acme: + email: suporte@eftech.com.br + privateKeySecretRef: + name: letsencrypt-hermes-prod + server: https://acme-v02.api.letsencrypt.org/directory + solvers: + - http01: + ingress: + class: traefik +``` + +Replace the `email` with yours and adjust `class` to match your ingress controller (nginx, traefik, haproxy, etc.). + +## Step 8: Ingress + +The Ingress exposes the service externally with TLS: + +```yaml +apiVersion: networking.k8s.io/v1 +kind: Ingress +metadata: + name: hermes-ingress + annotations: + cert-manager.io/issuer: "letsencrypt-hermes-prod" +spec: + ingressClassName: traefik + tls: + - hosts: + - hermes.eftech.com.br + secretName: hermes-tls + rules: + - host: hermes.eftech.com.br + http: + paths: + - path: / + pathType: Prefix + backend: + service: + name: hermes-gateway + port: + number: 8642 +``` + +> **Note:** The Ingress is commented out in `kustomization.yaml` by default. Uncomment it when you're ready to expose the service. + +## Step 9: Apply everything with Kustomize + +With `kustomization.yaml` configured, apply all resources at once: + +```bash +kubectl apply -k iac/files/kubernetes/hermes/ --namespace hermes +``` + +Kustomize processes the files in the correct order: PVC → ConfigMap → Deployment → Services → Issuer → Ingress. + +## Verification + +Check that the pod is running: + +```bash +kubectl get pods -n hermes +``` + +Follow the logs: + +```bash +kubectl logs -n hermes -l app.kubernetes.io/name=hermes +``` + +Test the health check: + +```bash +kubectl port-forward -n hermes svc/hermes-gateway 8642:8642 +curl http://localhost:8642/health +``` + +Access the dashboard: + +```bash +kubectl port-forward -n hermes svc/hermes-dashboard 9119:9119 +# Open http://localhost:9119 in your browser +``` + +## Conclusion + +In this guide, you installed the Hermes Agent on Kubernetes with: + +- ConfigMap for centralized configuration +- Externally managed Secrets with Reloader +- Persistent storage via PVC with Longhorn +- Deployment with health checks and resource limits +- Services for internal exposure +- cert-manager for automatic TLS +- Ingress for external access + +The entire configuration is declarative and versioned with Kustomize, making it easy to maintain and replicate across environments. + +At **EF-TECH**, we help companies plan and execute Kubernetes deployments focused on reliability and best practices. [Contact us](/en/contato/) to learn how we can help your team. diff --git a/content/pt-br/blog/hermes-k8s-install.md b/content/pt-br/blog/hermes-k8s-install.md new file mode 100644 index 0000000..5575251 --- /dev/null +++ b/content/pt-br/blog/hermes-k8s-install.md @@ -0,0 +1,366 @@ +--- +title: "Como instalar o Hermes Agent usando Kubernetes" +description: "Guia passo a passo para instalar e configurar o Hermes Agent em um cluster Kubernetes usando Kustomize" +summary: "Aprenda a fazer deploy do Hermes Agent no Kubernetes com ConfigMap, Deployment, Services, cert-manager e Ingress — tudo gerenciado via Kustomize." +date: 2026-06-19 +draft: false +tags: ["hermes", "kubernetes", "k8s", "devops", "implantacao"] +categories: ["infraestrutura"] +--- + +O [Hermes Agent](https://github.com/NousResearch/hermes-agent) é uma ferramenta poderosa para orquestração de agentes de IA. Neste guia, você vai aprender a instalá-lo em um cluster Kubernetes utilizando os manifestos disponíveis no repositório da EF-TECH. + +Vamos cobrir cada recurso necessário — desde o ConfigMap até o Ingress — explicando o papel de cada componente e como aplicá-los com `kubectl` e Kustomize. + +## Pré-requisitos + +Antes de começar, certifique-se de ter: + +- Um cluster Kubernetes (v1.19+) +- `kubectl` configurado para acessar o cluster +- `kustomize` instalado (ou `kubectl` v1.21+ com suporte nativo a `-k`) +- [cert-manager](https://cert-manager.io/docs/installation/) instalado (para TLS) +- Uma `StorageClass` compatível (o exemplo usa `longhorn`) +- [Reloader](https://github.com/stakater/Reloader) (opcional, para recarga automática de secrets) + +## Estrutura dos manifestos + +Os arquivos de manifesto estão organizados no diretório `iac/files/kubernetes/hermes/`: + +``` +iac/files/kubernetes/hermes/ +├── configmap.yaml +├── deployment.yaml +├── ingress.yaml +├── issuer.yaml +├── kustomization.yaml +├── persistentvolumeclaim.yaml +└── service.yaml +``` + +## Passo 1: Namespace + +Crie o namespace `hermes` para isolar os recursos: + +```bash +kubectl create namespace hermes +``` + +## Passo 2: ConfigMap + +O ConfigMap define as variáveis de ambiente do Hermes Agent: + +```yaml +apiVersion: v1 +kind: ConfigMap +metadata: + name: hermes-config + labels: + app.kubernetes.io/name: hermes + app.kubernetes.io/part-of: hermes +data: + HERMES_DASHBOARD: "1" + HERMES_UID: "10000" + HERMES_GID: "10000" + HERMES_DASHBOARD_HOST: "0.0.0.0" + HERMES_DASHBOARD_INSECURE: "1" + DASHBOARD_PORT: "9119" + GATEWAY_PORT: "8642" + API_SERVER_ENABLED: "true" + API_SERVER_HOST: "0.0.0.0" + WEBHOOK_ENABLED: "true" + WEBHOOK_PORT: "8644" +``` + +Principais variáveis: +- `HERMES_DASHBOARD=1` — habilita o dashboard web +- `API_SERVER_ENABLED=true` — ativa a API REST +- `WEBHOOK_ENABLED=true` — ativa o webhook para integrações +- Portas: Gateway (`8642`), Dashboard (`9119`), Webhook (`8644`) + +## Passo 3: Secrets + +O deployment referencia um Secret externo chamado `hermes-secret` com a anotação `secret.reloader.stakater.com/reload`. Isso permite que o Reloader reinicie o pod automaticamente quando o secret for atualizado. + +Crie o secret manualmente: + +```bash +kubectl create secret generic hermes-secret \ + --namespace hermes \ + --from-literal=API_KEY=sua-chave-aqui \ + --from-literal=OUTH_TOKEN=seu-token-aqui +``` + +> **Nota:** Os valores exatos dependem da configuração do seu Hermes Agent. Consulte a [documentação oficial](https://github.com/NousResearch/hermes-agent) para obter a lista completa de variáveis esperadas. + +## Passo 4: PersistentVolumeClaim + +O Hermes Agent precisa de armazenamento persistente para dados. O PVC solicita 5Gi em um storage class `longhorn`: + +```yaml +apiVersion: v1 +kind: PersistentVolumeClaim +metadata: + name: hermes-data + labels: + app.kubernetes.io/name: hermes + app.kubernetes.io/part-of: hermes +spec: + accessModes: + - ReadWriteOnce + storageClassName: longhorn + resources: + requests: + storage: 5Gi +``` + +Ajuste o `storageClassName` conforme a disponível no seu cluster (use `standard`, `gp2`, `ebs-sc` etc.). + +## Passo 5: Deployment + +O Deployment gerencia o pod do Hermes Agent com a imagem `nousresearch/hermes-agent:latest`: + +```yaml +apiVersion: apps/v1 +kind: Deployment +metadata: + name: hermes + labels: + app.kubernetes.io/name: hermes + app.kubernetes.io/part-of: hermes + annotations: + secret.reloader.stakater.com/reload: "hermes-secret" +spec: + replicas: 1 + strategy: + type: Recreate + selector: + matchLabels: + app.kubernetes.io/name: hermes + template: + metadata: + labels: + app.kubernetes.io/name: hermes + annotations: + secret.reloader.stakater.com/reload: "hermes-secret" + spec: + restartPolicy: Always + enableServiceLinks: false + containers: + - name: hermes + image: nousresearch/hermes-agent:latest + args: ["gateway", "run"] + envFrom: + - configMapRef: + name: hermes-config + - secretRef: + name: hermes-secret + ports: + - name: gateway + containerPort: 8642 + - name: dashboard + containerPort: 9119 + - name: webhook + containerPort: 8644 + livenessProbe: + httpGet: + path: /health + port: gateway + initialDelaySeconds: 120 + periodSeconds: 15 + readinessProbe: + httpGet: + path: /health + port: gateway + initialDelaySeconds: 15 + periodSeconds: 10 + resources: + requests: + memory: "256Mi" + cpu: "100m" + limits: + memory: "4Gi" + cpu: "1" + volumeMounts: + - name: hermes-data + mountPath: /opt/data + volumes: + - name: hermes-data + persistentVolumeClaim: + claimName: hermes-data +``` + +### Pontos importantes: + +- **Estratégia `Recreate`**: necessária porque o volume `ReadWriteOnce` não pode ser montado por múltiplos pods simultaneamente +- **Health checks**: o readiness probe começa após 15s e o liveness probe após 120s (tempo para o agente inicializar) +- **Recursos**: requests baixos (256Mi/100m) com limits generosos (4Gi/1 CPU) para acomodar picos de uso +- **Portas**: três portas expostas — gateway (8642), dashboard (9119) e webhook (8644) +- **Volume**: montado em `/opt/data` para dados persistentes + +## Passo 6: Services + +Três Services do tipo ClusterIP expõem cada porta internamente no cluster: + +```yaml +--- +apiVersion: v1 +kind: Service +metadata: + name: hermes-gateway + labels: + app.kubernetes.io/name: hermes + app.kubernetes.io/part-of: hermes +spec: + type: ClusterIP + selector: + app.kubernetes.io/name: hermes + ports: + - name: gateway + port: 8642 + targetPort: gateway +--- +apiVersion: v1 +kind: Service +metadata: + name: hermes-dashboard + labels: + app.kubernetes.io/name: hermes + app.kubernetes.io/part-of: hermes +spec: + type: ClusterIP + selector: + app.kubernetes.io/name: hermes + ports: + - name: dashboard + port: 9119 + targetPort: dashboard +--- +apiVersion: v1 +kind: Service +metadata: + name: hermes-webhook + labels: + app.kubernetes.io/name: hermes + app.kubernetes.io/part-of: hermes +spec: + type: ClusterIP + selector: + app.kubernetes.io/name: hermes + ports: + - name: webhook + port: 8644 + targetPort: webhook +``` + +Cada service mapeia pelo nome da porta definida no Deployment, garantindo o roteamento correto. + +## Passo 7: TLS com cert-manager + +O Issuer configura a emissão de certificados Let's Encrypt: + +```yaml +apiVersion: cert-manager.io/v1 +kind: Issuer +metadata: + name: letsencrypt-hermes-prod + namespace: hermes +spec: + acme: + email: suporte@eftech.com.br + privateKeySecretRef: + name: letsencrypt-hermes-prod + server: https://acme-v02.api.letsencrypt.org/directory + solvers: + - http01: + ingress: + class: traefik +``` + +Substitua o `email` pelo seu e-mail e ajuste `class` para o ingress controller do seu cluster (nginx, traefik, haproxy etc.). + +## Passo 8: Ingress + +O Ingress expõe o serviço externamente com TLS: + +```yaml +apiVersion: networking.k8s.io/v1 +kind: Ingress +metadata: + name: hermes-ingress + annotations: + cert-manager.io/issuer: "letsencrypt-hermes-prod" +spec: + ingressClassName: traefik + tls: + - hosts: + - hermes.eftech.com.br + secretName: hermes-tls + rules: + - host: hermes.eftech.com.br + http: + paths: + - path: / + pathType: Prefix + backend: + service: + name: hermes-gateway + port: + number: 8642 +``` + +> **Nota:** O Ingress está comentado no `kustomization.yaml` por padrão. Descomente quando estiver pronto para expor o serviço. + +## Passo 9: Aplicar tudo com Kustomize + +Com o `kustomization.yaml` configurado, aplique todos os recursos de uma vez: + +```bash +kubectl apply -k iac/files/kubernetes/hermes/ --namespace hermes +``` + +O Kustomize processa os arquivos na ordem correta: PVC → ConfigMap → Deployment → Services → Issuer → Ingress. + +## Verificação + +Confira se o pod está rodando: + +```bash +kubectl get pods -n hermes +``` + +Acompanhe os logs: + +```bash +kubectl logs -n hermes -l app.kubernetes.io/name=hermes +``` + +Teste o health check: + +```bash +kubectl port-forward -n hermes svc/hermes-gateway 8642:8642 +curl http://localhost:8642/health +``` + +Acesse o dashboard: + +```bash +kubectl port-forward -n hermes svc/hermes-dashboard 9119:9119 +# Abra http://localhost:9119 no navegador +``` + +## Conclusão + +Neste guia, você instalou o Hermes Agent no Kubernetes com: + +- ConfigMap para configuração centralizada +- Secrets gerenciados externamente com Reloader +- Persistência via PVC com Longhorn +- Deployment com health checks e limites de recursos +- Services para exposição interna +- cert-manager para TLS automático +- Ingress para acesso externo + +Toda a configuração é declarativa e versionada com Kustomize, facilitando manutenção e replicação em outros ambientes. + +Na **EF-TECH**, ajudamos empresas a planejar e executar implantações Kubernetes com foco em confiabilidade e boas práticas. [Entre em contato](/pt-br/contato/) para saber como podemos ajudar sua equipe.