Added Docker Network support for Locally Invoking SAM applications (#788)

* Docker Network Support
Modified the template to add dockerNetwork option
Passed the value through to the SAM Cli

Note: dockerNetwork is not a boolean, rather it's a string (For
obvious reasons).  The template has auto-complete, and will handle
null values sanely.

Author: LazerFX

.changes/next-release/Feature-07e700f5-e536-43f7-8eee-c95d61158bf6.json

@@ -0,0 +1,4 @@
+{
+    "type": "Feature",
+    "description": "Added docker network option support for invoking sam applications"
+}

src/lambda/config/templates.ts

@@ -38,12 +38,14 @@ export interface HandlerConfig {
     environmentVariables: {
         [name: string]: string
     }
+    dockerNetwork?: string
 }
 
 export function generateDefaultHandlerConfig(): HandlerConfig {
     return {
         event: {},
-        environmentVariables: {}
+        environmentVariables: {},
+        dockerNetwork: undefined
     }
 }
 

src/schemas/templates.json

@@ -38,6 +38,11 @@
                                             "type": "object",
                                             "default": {},
                                             "description": "Overrides the environment variable values defined in the SAM Template when running the Lambda function locally."
+                                        },
+                                        "dockerNetwork": {
+                                            "type": "string",
+                                            "default": null,
+                                            "description": "If specified, adds a --docker-network parameter to the SAM CLI.  If not specified, no parameter will be sent."
                                         }
                                     }
                                 }

src/shared/codelens/localLambdaRunner.ts

@@ -188,7 +188,8 @@ export class LocalLambdaRunner {
             eventPath,
             environmentVariablePath,
             debugPort: !!this._debugPort ? this._debugPort.toString() : undefined,
-            invoker: this.localInvokeCommand
+            invoker: this.localInvokeCommand,
+            dockerNetwork: config.dockerNetwork
         })
 
         const timer = createInvokeTimer(this.configuration)
@@ -420,7 +421,8 @@ export async function invokeLambdaFunction(
         templatePath: invokeArgs.samTemplatePath,
         eventPath,
         environmentVariablePath,
-        invoker: samLocalInvokeCommand
+        invoker: samLocalInvokeCommand,
+        dockerNetwork: config.dockerNetwork
     }
 
     const debugArgs = invokeArgs.debugArgs