Adds a dockerRunCmdExtraArgs option for adding arbitrary arguments to the dockerized pip step.

Author: ChiliJohnson

index.js

@@ -48,6 +48,7 @@ class ServerlessPythonRequirements {
         dockerImage: null,
         dockerFile: null,
         dockerEnv: false,
+        dockerRunCmdExtraArgs: [],
         useStaticCache: false,
         useDownloadCache: false,
         cacheLocation: false,

lib/pip.js

@@ -259,6 +259,13 @@ function installRequirements(targetFolder, serverless, options) {
       // Use same user so --cache-dir works
       dockerCmd.push('-u', getDockerUid(bindPath));
     }
+
+    if (Array.isArray(options.dockerRunCmdExtraArgs)) {
+      dockerCmd.push(...options.dockerRunCmdExtraArgs);
+    } else {
+      throw new Error('dockerRunCmdExtraArgs option must be an array');
+    }
+
     dockerCmd.push(dockerImage);
   }