GCEの無料枠でWordPressサーバーを立てる

sudo apt-get update

sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

Do you want to continue? [Y/n] Y

sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin

Do you want to continue? [Y/n] Y

sudo docker version

Client: Docker Engine - Community
 Version:           20.10.16
 API version:       1.41
 Go version:        go1.17.10
 Git commit:        aa7e414
 Built:             Thu May 12 09:17:23 2022
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true

Server: Docker Engine - Community
 Engine:
  Version:          20.10.16
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.17.10
  Git commit:       f756502
  Built:            Thu May 12 09:15:28 2022
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.6.4
  GitCommit:        212e8b6fa2f44b9c21b2798135fc6fb7c53efc16
 runc:
  Version:          1.1.1
  GitCommit:        v1.1.1-0-g52de29d
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

sudo docker run hello-world

Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
2db29710123e: Pull complete 
Digest: sha256:80f31da1ac7b312ba29d65080fddf797dd76acfb870e677f390d5acba9741b17
Status: Downloaded newer image for hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (amd64)
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/

For more examples and ideas, visit:
 https://docs.docker.com/get-started/

git clone https://github.com/shipwebdotjp/nginx-proxy.git
sudo docker network create nginx_net
cd nginx-proxy
sudo docker compose up -d --build

cd $pwd
git clone https://github.com/shipwebdotjp/docker-wordpress.git wp
cd wp
# メール送信用のpostfixの.envを名称変更し、SMTPサーバーの情報を記載
mv postfix/.env.sample postfix/.env
vi postfix/.env

SMTP_SERVER=smtp.gmail.com
SMTP_USERNAME=example@gmail.com
SMTP_PASSWORD=<Password Here>
SERVER_HOSTNAME=<Your Web Server Domain>

# メール送信MTAの設定ファイルmsmtprcを名称変更し、メールアドレスを記載
mv wordpress/msmtprc.sample wordpress/msmtprc
vi wordpress/msmtprc

from youremail@example.com

# ドメイン名でHTTPSでのアクセスができるようにするため、VIRTUAL_HOSTと、LETSENCRYPT_HOSTを書き換え
vi docker-compose.yml
      VIRTUAL_HOST: example.com
      LETSENCRYPT_HOST: example.com
      LETSENCRYPT_EMAIL: admin@example.com

# docker composeでビルド＆コンテナ作成＆実行
sudo docker compose up -d --build