charts description and requirements

docs/guides/deploy-k8s.md

@@ -20,12 +20,47 @@ This guide explains how to deploy the Sensitive Data Archive (SDA) in kubernetes
 
 ## Charts overview
 
+### sda-db - Database component for Sensitive Data Archive (SDA) installation
+
+This chart deploys a pre-configured database ([PostgreSQL](https://www.postgresql.org/ega)) instance for Sensitive Data Archive, the database schemas are designed to adhere to [European Genome-Phenome Archive](https://ega-archive.org/) federated archiving model.
+
+### sda-mq - RabbitMQ component for Sensitive Data Archive (SDA) installation
+
+This chart deploys a pre-configured message broker ([RabbitMQ](https://www.rabbitmq.com/)) designed to work [European Genome-Phenome Archive](https://ega-archive.org/) federated messaging interface between Central EGA and Local/Federated EGAs.
+
+### sda-svc - Components for Sensitive Data Archive (SDA) installation
+
+This chart deploys the service components needed to operate the Sensitive Data Archive solution for running a Federated EGA node.
+The charts may include additional service components that might be beneficial for administrative operations or extending the Sensitive Data Archive solutions to facilitate other use cases.
+
 ## System requirements
 
- - k8s/helm minimal versions
- - rough estimate of hardware resources
+ - kubernetes minimal version required for running the helm charts is `>= 1.19.0-0`
+ - helm minimal version required for running the charts is `>=3.5`
 
-## Minimal working configuration
+### Resource estimation
+
+- RabbitMQ - official recommended resource requirements for a [RabbitMQ cluster](https://www.rabbitmq.com/kubernetes/operator/using-operator.html#resource-reqs)
+- PostgreSQL - official recommended resource requirements for [PostgreSQL](https://www.postgresql.org/docs/current/install-requirements.html)
+
+#### Minimal working configuration
+
+The table below reflects the minum required resources to run the services in the helm charts.
+
+| Service    | CPU   | Memory | Disk |
+|------------|-------|--------|------|
+| RabbitMQ   | 1000m | 1Gi    | 8Gi  |
+| PostgreSQL | 100m  | 128Mi  | 8Gi  |
+| intercept  | 100m  | 32Mi   | -    |
+| ingest     | 100m  | 128Mi  | -    |
+| verify     | 100m  | 128Mi  | -    |
+| finalize   | 100m  | 128Mi  | -    |
+| download   | 100m  | 256Mi  | -    |
+| backup     | 100m  | 128Mi  | -    |
+| auth       | 100m  | 128Mi  | -    |
+| s3inbox    | 100m  | 128Mi  | -    |
+| sftpinbox  | 100m  | 128Mi  | -    |
+| doa        | 100m  | 128Mi  | -    |
 
 ## Security issues
 
@@ -39,5 +74,3 @@ This guide explains how to deploy the Sensitive Data Archive (SDA) in kubernetes
 ## Complementary services
 
  - sda-auth, sda-doa, sda-download
-
-