$ docker run --rm -d -p 80:80 nginx:alpine
$ docker ps --format "table {{.Image}}\t{{.Ports}}"
IMAGE               PORTS
nginx:alpine        0.0.0.0:80->80/tcp

$ docker run --rm -d -p 80:80 nginx:alpine
$ docker ps --format "table {{.Image}}\t{{.Ports}}"
IMAGE               PORTS
nginx:alpine        127.0.0.1:80->80/tcp

const a = [{a: 'aaa'}];
const b = a.map(v => v);

b[0].a = 'bbb';

console.log(a, b);
// Array (1)
//   0 {a: "bbb"}
// Array (1)
//   0 {a: "bbb"}

const a = ['aaa'];
const b = a.map(v => v);

b[0] = 'bbb';

console.log(a, b);
// Array (1)
//   0 "aaa"
// Array (1)
//   0 "bbb"

const a = ['aaa', {a: 'aaa'}];
const b = a.map(v => v);

b[0] = 'bbb';
b[1].a = 'ccc';

console.log(a, b);
// Array (2)
//   0 "aaa"
//   1 {a: "ccc"}
// Array (2)
//   0 "bbb"
//   1 {a: "ccc"}

const mix = require('laravel-mix');
const util = require('util');

mix.override(webpackConfig => {
  console.log(
    util.inspect(webpackConfig, false, null, true)
  );
});

<configuration>
  <system.webServer>
    <defaultDocument enabled="true">
      <files>
        <clear />
        <add value="index.html" />
      </files>
    </defaultDocument>
    <httpProtocol>
      <customHeader>
        <add name="Cache-Control" value="no-cache" />
      </customHeader>
    </httpProtocol>
  </system.webServer>
  <location path="js">
    <system.webServer>
      <httpProtocol>
        <customHeader>
          <remove name="Cache-Control" />
          <add name="Cache-Control" value="max-age=86400" />
        </customHeader>
      </httpProtocol>
    </system.webServer>
  </location>
  <location path="css">
    <system.webServer>
      <httpProtocol>
        <customHeader>
          <remove name="Cache-Control" />
          <add name="Cache-Control" value="max-age=86400" />
        </customHeader>
      </httpProtocol>
    </system.webServer>
  </location>
  <location path="images">
    <system.webServer>
      <httpProtocol>
        <customHeader>
          <remove name="Cache-Control" />
          <add name="Cache-Control" value="max-age=86400" />
        </customHeader>
      </httpProtocol>
    </system.webServer>
  </location>
</configuration>

http {
    proxy_cache_path /var/nginx/cache keys_zone=static_assets:1m max_size=1g;
}

upstream resource_server {
    server resource.example.com;
}
server {
    location /(css|js)/ {
        proxy_pass http://resource_server;
        proxy_cache static_assets;
        proxy_cache_valid 200 10m;
        add_header X-Cache-Hit $upstream_cache_status;
    }
}

dependencies {
    // 略
    implementation 'org.postgresql:postgresql:42.2.8'
    // 略
}

override fun onResume() {
    super.onResume()

    thread {
        val c = DriverManager.getConnection("jdbc:postgresql://10.0.2.2/postgres?user=postgres&password=password")
        val s = c.createStatement()
        val r = s.executeQuery("CREATE TABLE IF NOT EXISTS sample (id SERIAL PRIMARY KEY, number INTEGER)")
        r.close()
        s.close()
        c.close()
    }
}

+ <uses-permission android:name="android.permission.INTERNET" />

E/AndroidRuntime: FATAL EXCEPTION: Thread-147
    Process: com.example.sample, PID: 2812
    java.sql.SQLException: No suitable driver
        at java.sql.DriverManager.getConnection(DriverManager.java:186)
        at java.sql.DriverManager.getConnection(DriverManager.java:144)
        at com.example.sample.MainActivity$onResume$1.invoke(MainActivity.kt:19)
        at com.example.sample.MainActivity$onResume$1.invoke(MainActivity.kt:8)
        at kotlin.concurrent.ThreadsKt$thread$thread$1.run(Thread.kt:30)

java.lang.NoClassDefFoundError: Failed resolution of: Ljava/time/Duration;
 Caused by: java.lang.ClassNotFoundException: Didn't find class "java.time.Duration" on path: DexPathList[[zip file "/data/app/com.example.sample-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.sample-1/lib/x86_64, /system/lib64, /vendor/lib64]]

org.postgresql.util.PSQLException: No results were returned by the query.

  dependencies {
      // 略
-     implementation 'org.postgresql:postgresql:42.2.8'
+     implementation 'org.postgresql:postgresql:42.2.8.jre7'
      // 略
  }

handlers:
- url: /$
  static_files: public/index\.html
  upload: public/.*

- url: /(.*)
  script: auto

handlers:
- url: /$
  static_files: public/index\.html
  require_matching_file: false
  upload: public/.*
- url: /(.*)
  script: auto
- url: .*
  script: auto

http {
    location ~ /$ {
        alias public/index\.html;
        try_files $uri @fallback;
    }
    location ~ /(.*)$ {
        proxy_pass http://golang:8080;
    }
    location @fallback {
        proxy_pass http://golang:8080;
    }
}

try_files / @fallback;

FROM node:10.17.0

RUN npm install -g lighthouse

version: '3'
services:
  nginx:
    image: nginx:1.17.5
  lighthouse:
    build: ./
    tty: yes

$ docker-compose up -d
$ docker-compose exec lighthouse lighthouse http://nginx/
~~~ 略 ~~~
Runtime error encountered: The environment variable CHROME_PATH must be set to executable of a build of Chromium version 54.0 or later.
~~~ 略 ~~~

- RUN npm install -g lighthouse
+ RUN apt-get update && \
+     apt-get install -y chromium && \
+     npm install -g lighthouse

$ docker-compose down
$ docker rmi ${ディレクトリ名}_lighthouse:latest
$ docker-compose up -d
$ docker-compose exec lighthouse lighthouse http://nginx/
~~~ 略 ~~~
  ChromeLauncher Waiting for browser....................................................................................................... +503ms
  ChromeLauncher:error connect ECONNREFUSED 127.0.0.1:34953 +1ms
  ChromeLauncher:error Logging contents of /tmp/lighthouse.luZObZw/chrome-err.log +0ms
  ChromeLauncher:error [23:23:1027/054400.061948:ERROR:zygote_host_impl_linux.cc(89)] Running as root without --no-sandbox is not supported. See https://crbug.com/638180.
  ChromeLauncher:error  +0ms

$ docker-compose exec lighthouse lighthouse --chrome-flags="--no-sandbox --headless" http://nginx/
~~~ 略 ~~~
  ChromeLauncher Waiting for browser.....✓ +3ms
  config:warn IFrameElements gatherer requested, however no audit requires it. +171ms
  config:warn MainDocumentContent gatherer requested, however no audit requires it. +1ms
  status Connecting to browser +10ms
  status Resetting state with about:blank +17ms
  status Benchmarking machine +55ms
  status Initializing… +512ms
  status Resetting state with about:blank +44ms
  status Setting up network for the pass trace +15ms
  status Cleaning browser cache +4ms
  status Beginning devtoolsLog and trace +10ms
  method <= browser ERR:error Tracing.start  +2ms
  status Disconnecting from browser... +2ms
  ChromeLauncher Killing Chrome instance 22 +1ms
Runtime error encountered: Protocol error (Tracing.start): 'Tracing.start' wasn't found
Error: Protocol error (Tracing.start): 'Tracing.start' wasn't found
~~~ 略 ~~~

FROM ubuntu:bionic-20191010

RUN apt-get update && \
    apt-get install -y curl ca-certificates && \
    curl -sL https://deb.nodesource.com/setup_10.x | bash - && \
    apt-get install -y nodejs chromium-browser && \
    npm install -g lighthouse

$ docker-compose down
$ docker rmi ${ディレクトリ名}_lighthouse:latest
$ docker-compose up -d
$ docker-compose exec lighthouse lighthouse --chrome-flags="--no-sandbox --headless" http://nginx/
~~~ 略 ~~~
  status Generating results... +1ms
  Printer html output written to /nginx_2019-10-28_20-00-00.report.html +121ms
  CLI Protip: Run lighthouse with `--view` to immediately open the HTML report in your browser +0ms
  ChromeLauncher Killing Chrome instance 32 +0ms

$ docker-compose exec lighthouse cat /nginx_2019-10-28_20-00-00.report.html > ./report.html