dockerHost feature

src/config/commandOptions.js

@@ -72,4 +72,7 @@ export default {
   useDocker: {
     usage: 'Uses docker for node/python/ruby',
   },
+  dockerHost: {
+    usage: 'The host name of Docker. Default: localhost',
+  },
 }

src/config/defaultOptions.js

@@ -22,4 +22,5 @@ export default {
   useWorkerThreads: false,
   websocketPort: 3001,
   useDocker: false,
+  dockerHost: 'localhost',
 }

src/lambda/handler-runner/HandlerRunner.js

@@ -34,7 +34,7 @@ export default class HandlerRunner {
 
     if (useDocker) {
       const { default: DockerRunner } = await import('./docker-runner/index.js')
-      return new DockerRunner(this.#funOptions, this.#env)
+      return new DockerRunner(this.#funOptions, this.#env, this.#options)
     }
 
     if (supportedNodejs.has(runtime)) {

src/lambda/handler-runner/docker-runner/DockerContainer.js

@@ -19,13 +19,15 @@ export default class DockerContainer {
   #imageNameTag = null
   #image = null
   #port = null
+  #host = null
 
-  constructor(env, functionKey, handler, runtime) {
+  constructor(env, functionKey, handler, runtime, host) {
     this.#env = env
     this.#functionKey = functionKey
     this.#handler = handler
     this.#imageNameTag = this._baseImage(runtime)
     this.#image = new DockerImage(this.#imageNameTag)
+    this.#host = host
   }
 
   _baseImage(runtime) {
@@ -118,7 +120,7 @@ export default class DockerContainer {
   }
 
   async _ping() {
-    const url = `http://localhost:${this.#port}/2018-06-01/ping`
+    const url = `http://${this.#host}:${this.#port}/2018-06-01/ping`
     const res = await fetch(url)
 
     if (!res.ok) {
@@ -129,7 +131,7 @@ export default class DockerContainer {
   }
 
   async request(event) {
-    const url = `http://localhost:${this.#port}/2015-03-31/functions/${
+    const url = `http://${this.#host}:${this.#port}/2015-03-31/functions/${
       this.#functionKey
     }/invocations`
     const res = await fetch(url, {

src/lambda/handler-runner/docker-runner/DockerRunner.js

@@ -5,11 +5,12 @@ export default class DockerRunner {
   #codeDir = null
   #container = null
 
-  constructor(funOptions, env) {
+  constructor(funOptions, env, options) {
     const { codeDir, functionKey, handler, runtime } = funOptions
+    const { dockerHost } = options
 
     this.#codeDir = codeDir
-    this.#container = new DockerContainer(env, functionKey, handler, runtime)
+    this.#container = new DockerContainer(env, functionKey, handler, runtime, dockerHost)
   }
 
   cleanup() {