Chore: Update helm chart (#1984)

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## Description
Updated example Helm chart:
* connected PostgreSQL + pgvector to Cognee
* Added required variables and secrets
* Tested with port forwarding
* Updated readme
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## Acceptance Criteria
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## Type of Change
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- [ ] Bug fix (non-breaking change that fixes an issue)
- [ ] New feature (non-breaking change that adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
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- [ ] Documentation update
- [ ] Code refactoring
- [ ] Performance improvement
- [x] Other (please specify): Cloud

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## Pre-submission Checklist
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- [ ] **I have tested my changes thoroughly before submitting this PR**
- [ ] **This PR contains minimal changes necessary to address the
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- [ ] I have added necessary documentation (if applicable)
- [ ] All new and existing tests pass
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## DCO Affirmation
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<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit

* **Documentation**
* Updated deployment guide with example setup instructions, deployment
commands, and port forwarding details for local access.

* **Configuration**
  * Added LLM model and provider configuration settings.
* Enhanced deployment with environment variables and memory resource
limits.
  * Implemented secure secret management for API keys.
  * Adjusted resource allocations for services.

<sub>✏️ Tip: You can customize this high-level summary in your review
settings.</sub>

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.gitignore

@@ -148,6 +148,7 @@ ENV/
 env.bak/
 venv.bak/
 mise.toml
+deployment/helm/values-local.yml
 
 # Spyder project settings
 .spyderproject

deployment/helm/README.md

@@ -1,6 +1,7 @@
 
-# cognee-infra-helm
-General infrastructure setup for Cognee on Kubernetes using a Helm chart.
+# Example helm chart
+Example Helm chart fro Cognee with PostgreSQL and pgvector extension
+It is not ready for production usage
 
 ## Prerequisites
 Before deploying the Helm chart, ensure the following prerequisites are met: 
@@ -13,13 +14,22 @@ Before deploying the Helm chart, ensure the following prerequisites are met:
 
 Clone the Repository Clone this repository to your local machine and navigate to the directory.
 
-## Deploy Helm Chart:
+## Example deploy Helm Chart:
 
    ```bash
-   helm install cognee ./cognee-chart
+   helm upgrade --install cognee deployment/helm \
+  --namespace cognee --create-namespace \
+  --set cognee.env.LLM_API_KEY="$YOUR_KEY"
    ```
 
 **Uninstall Helm Release**:
    ```bash
    helm uninstall cognee
    ```
+
+## Port forwarding
+To access cognee, run
+```
+kubectl port-forward svc/cognee-service -n cognee 8000
+```
+it will be available at localhost:8000

deployment/helm/templates/cognee_deployment.yaml

@@ -20,12 +20,35 @@ spec:
           ports:
             - containerPort: {{ .Values.cognee.port }}
           env:
+            - name: ENABLE_BACKEND_ACCESS_CONTROL
+              value: "false"
             - name: HOST
               value: {{ .Values.cognee.env.HOST }}
             - name: ENVIRONMENT
               value: {{ .Values.cognee.env.ENVIRONMENT }}
             - name: PYTHONPATH
               value: {{ .Values.cognee.env.PYTHONPATH }}
+            - name: VECTOR_DB_PROVIDER
+              value: pgvector
+            - name: DB_HOST
+              value: {{ .Release.Name }}-postgres
+            - name: DB_PORT
+              value: "{{ .Values.postgres.port }}"
+            - name: DB_NAME
+              value: {{ .Values.postgres.env.POSTGRES_DB }}
+            - name: DB_USERNAME
+              value: {{ .Values.postgres.env.POSTGRES_USER }}
+            - name: DB_PASSWORD
+              value: {{ .Values.postgres.env.POSTGRES_PASSWORD }}
+            - name: LLM_API_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Release.Name }}-llm-api-key
+                  key: LLM_API_KEY
+            - name: LLM_MODEL
+              value: {{ .Values.cognee.env.LLM_MODEL }}
+            - name: LLM_PROVIDER
+              value: {{ .Values.cognee.env.LLM_PROVIDER }}
           resources:
             limits:
               cpu: {{ .Values.cognee.resources.cpu }}

deployment/helm/templates/cognee_service.yaml

@@ -5,7 +5,7 @@ metadata:
   labels:
     app: {{ .Release.Name }}-cognee
 spec:
-  type: NodePort
+  type: ClusterIP
   ports:
     - port: {{ .Values.cognee.port }}
       targetPort: {{ .Values.cognee.port }}

deployment/helm/templates/secrets.yml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ .Release.Name }}-llm-api-key
+type: Opaque
+data:
+  LLM_API_KEY: {{ .Values.cognee.env.LLM_API_KEY | b64enc | quote }}

deployment/helm/values.yaml

@@ -7,9 +7,11 @@ cognee:
     HOST: "0.0.0.0"
     ENVIRONMENT: "local"
     PYTHONPATH: "."
+    LLM_MODEL: "openai/gpt-4o-mini"
+    LLM_PROVIDER: "openai"
   resources:
     cpu: "4.0"
-    memory: "8Gi"
+    memory: "2Gi"
 
 # Configuration for the 'postgres' database service
 postgres:
@@ -19,4 +21,4 @@ postgres:
     POSTGRES_USER: "cognee"
     POSTGRES_PASSWORD: "cognee"
     POSTGRES_DB: "cognee_db"
-  storage: "8Gi"
+  storage: "2Gi"