Streamline local Docker environment

Update readme

build/docker-compose.yml

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+wordpress:
+  environment:
+    - WORDPRESS_DB_HOST=db
+    - WORDPRESS_DB_PASSWORD=password
+    - WORDPRESS_DB_USER=windycoys
+  image: 'wordpress:php7.0-apache'
+  links:
+    - db
+  ports:
+    - "80:80"
+  volumes:
+    - ../.tmp/wp-content:/var/www/html/wp-content
+    - ../theme:/var/www/html/wp-content/themes/windycoys
+db:
+  environment:
+    - MYSQL_DATABASE=wordpress
+    - MYSQL_PASSWORD=password
+    - MYSQL_ROOT_PASSWORD=password
+    - MYSQL_USER=windycoys
+  image: 'mariadb:latest'
+  volumes:
+    - ../.tmp/mysql:/var/lib/mysql

build/serve.js

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+const { resolve } = require('path');
+const { execSync } = require('child_process');
+const { exec, upAll, stop } = require('docker-compose');
+const browsersync = require('browser-sync');
+const mysql = require('mysql');
+
+const name = 'windycoys';
+
+const dockerOptions = {
+  cwd: resolve(__dirname),
+  log: true,
+};
+
+const browserSyncOptions = {
+  files: [
+    'theme/**/*',
+  ],
+  watchtask: true,
+  open: false,
+};
+
+const mysqlConfig = {
+  user: 'root',
+  password: 'password',
+  database: 'wordpress',
+};
+
+process.env.COMPOSE_PROJECT_NAME = name;
+
+// Get IP address
+const getIpAddr = function getIpAddr(id) {
+  return execSync(`docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' ${id}`).toString('utf8').trim();
+};
+
+// Update URIs in MYSQL database
+const updateUriData = function updateUriData(wordpress, db) {
+  mysqlConfig.host = db;
+  const con = mysql.createConnection(mysqlConfig);
+  con.connect();
+
+  const query = `UPDATE wp_options SET option_value='http://${wordpress}' WHERE option_name in ('siteurl', 'home')`;
+
+  con.query(query, (error) => {
+    if (error) {
+      console.error('Error', error.sqlMessage);
+      process.exit(1);
+    }
+  });
+
+  con.end();
+};
+
+// Register Exit handler to stop Docker containers on exit
+const exitHandler = function exitHandler() {
+  stop(dockerOptions).then(
+    () => {
+      console.log('\n');
+      process.exit();
+    },
+    (err) => {
+      console.error('Error:', err.message);
+      process.exit(1);
+    },
+  );
+};
+
+process.on('beforeExit', exitHandler.bind());
+process.on('SIGINT', exitHandler.bind());
+process.on('SIGUSR1', exitHandler.bind());
+process.on('SIGUSR2', exitHandler.bind());
+process.on('uncaughtException', exitHandler.bind());
+
+// Start Docker containers
+upAll(dockerOptions).then(
+  () => {
+    console.log('Docker containers launched, starting browser-sync...');
+    const wordpress = getIpAddr(`${name}_wordpress_1`);
+    const db = getIpAddr(`${name}_db_1`);
+    if (wordpress && db) {
+      updateUriData(wordpress, db);
+      const bs = browsersync.create();
+      browserSyncOptions.proxy = wordpress;
+      bs.init(browserSyncOptions);
+    } else {
+      console.error('Error', 'No IP address for Docker containers. Aborting.');
+      process.exit(1);
+    }
+  },
+  (err) => {
+    console.error('Error', err.message);
+    process.exit(1);
+  },
+);