Gateway

The Gateway enables broadcasting a single message to the different microservices running in the cluster.

The gateway works as a tree: there is the root and the different leafs. The leafs “attach” to the root using a set of attributes, while the root provides an API.

When broadcasting a message, the message must contain the attributes to whom it should be broadcast. The root will broadcast the message to all the leafs that registered with those attributes.

Building gateway

To build the gateway run: go build .

Configuration

Load config file using the CONFIG environment variable

export CONFIG=path/to/clusterData.json

example/clusterData.json

{
   "gatewayWebsocketURL": "127.0.0.1:8001",
   "gatewayRestURL": "127.0.0.1:8002",
   "kubevulnURL": "127.0.0.1:8081",
   "kubescapeURL": "127.0.0.1:8080",
   "eventReceiverRestURL": "https://report.armo.cloud",
   "eventReceiverWebsocketURL": "wss://report.armo.cloud",
   "rootGatewayURL": "wss://ens.euprod1.cyberarmorsoft.com/v1/waitfornotification",
   "accountID": "*********************",
   "clusterName": "******" 
  } 

API Documentation

As mentioned before, the Gateway exposes an HTTP API. You can learn more about the API using one of the provided interactive OpenAPI UIs:

• SwaggerUI, available at /openapi/v2/swaggerui
• RapiDoc, available at /openapi/v2/rapi
• Redoc, available at /openapi/v2/docs

Supported environment variables

• WEBSOCKET_PORT: websocket port (default 8001)
• HTTP_PORT: restAPI port (default 8002)

For more details on environment variables, check out pkg/environmentvariables.go.

VS code configuration samples

You can use the sample file below to setup your VS code environment for building and debugging purposes.

.vscode/launch.json

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Launch Package",
            "type": "go",
            "request": "launch",
            "mode": "auto",
            "program":  "${workspaceRoot}",
                 "env": {
                     "NAMESPACE": "armo-system",
                     "CONFIG": "${workspaceRoot}/.vscode/clusterData.json",
            },
            "args": [
                "-alsologtostderr", "-v=4", "2>&1"
            ]
        }
    ]
}