Code files

Chapter11/running-a-docker-registry/micro/adderservice/.dockerignore

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+.git
+.gitignore
+node_modules
+npm-debug.log

Chapter11/running-a-docker-registry/micro/adderservice/Dockerfile

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+FROM node:slim
+RUN mkdir -p /home/node/service
+WORKDIR /home/node/service
+COPY package.json /home/node/service
+RUN npm install
+COPY . /home/node/service
+CMD [ "node", "index.js" ]

Chapter11/running-a-docker-registry/micro/adderservice/index.js

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+'use strict'
+
+const wiring = require('./wiring')
+const service = require('./service')()
+
+wiring(service)

Chapter11/running-a-docker-registry/micro/adderservice/package.json

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+{
+  "name": "adder-service",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "Peter Elger <peter.elger@nearform.com>",
+  "license": "ISC",
+  "dependencies": {
+    "restify": "^4.3.0"
+  }
+}

Chapter11/running-a-docker-registry/micro/adderservice/service.js

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+'use strict'
+
+module.exports = service
+
+function service () {
+  function add (args, cb) {
+    const {first, second} = args
+    const result = (parseInt(first, 10) + parseInt(second, 10))
+    cb(null, {result: result.toString()})
+  }
+
+  return { add }
+}

Chapter11/running-a-docker-registry/micro/adderservice/wiring.js

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+'use strict'
+
+const restify = require('restify')
+const { ADDERSERVICE_SERVICE_PORT } = process.env
+
+module.exports = wiring 
+
+function wiring (service) {
+  const server = restify.createServer()
+
+  server.get('/add/:first/:second', (req, res, next) => {
+    service.add(req.params, (err, result) => {
+      if (err) { 
+        res.send(err)
+        next()
+        return 
+      }
+      res.send(200, result)
+      next()
+    })
+  })
+
+  server.listen(ADDERSERVICE_SERVICE_PORT, '0.0.0.0', () => {
+    console.log('%s listening at %s', server.name, server.url)
+  })
+}