# 從 Docker 容器部署 Elastic Beanstalk 應用程序

[TOC]

###### tags: `aws` `eb` `docker`

---

## 先決條件

安裝…

- AWS CLI
- EB CLI
- Docker

## 容器化 Elastic Beanstalk 應用程序

├─ .elasticbeanstalk/
│  └─ …
├─ .platform/
│  └─ …
├─ Dockerfile
├─ Dockerrun.aws.json
├─ pom.xml
└─ src/
   └─ …

The most current platform branches are based on the **Amazon Linux 2** operating system and offer long-term support:

- **Docker** Running on 64bit Amazon Linux 2
- **ECS** Running on 64bit Amazon Linux 2

Supported platform branches for each Docker platform:

| Platform Version | Solution Stack Name | AMI | Docker | Docker Compose | Proxy Server |
| ----------------- | ------------------------------------------- | ------------ | ---------- | -------------- | ------------ |
| Docker AL2 3.4.17 | 64bit Amazon Linux 2 v3.4.17 running Docker | 2.0.20220606 | 20.10.13-2 | 1.29.2 | nginx 1.20.0 |
| ECS AL2 3.1.3 | 64bit Amazon Linux 2 v3.1.3 running ECS | 2.0.20220606 | | | |

# Comparison

| | Docker running on AL2 | ECS running on AL2 |
| -------------------- | --------------------- | ------------------ |
| single-container | ✅ | |
| multi-container | ✅ | ✅ |
| `Dockerrun.aws.json` | | ✅ |
| | | |
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# Docker running on Amazon Linux 2

├─ Dockerfile
└─ src/
   └─ ...

## `Dockerfile`

FROM python:3.6
COPY . /app
WORKDIR /app
RUN pip install Flask==1.0.2
EXPOSE 5000
CMD ["python", "application.py"]

:::info
If you're deploying a remote **Docker** image, you don't need to include a **`Dockerfile`**.
:::

### To build a Docker image

% docker build -t {docker-id}/{beanstalk-flask}:latest .

### To push it to ECR

% docker push {docker-id}/{beanstalk-flask}:latest

## If using **Docker Compose**, utilize a **`docker-compose.yml`**.

version: '3.8'
services:
  beanstalk-flask:
    image: "username/beanstalk-flask"
    ports:
      - "80:5000"

## If ***not*** using **Docker Compose**, utilize a **`Dockerrun.aws.json`**.

{
	"AWSEBDockerrunVersion": "1",
	"Image": {
		"Name": "username/beanstalk-flask",
		"Update": "true"
	},
	"Ports": [
		{
			"ContainerPort": "5000"
		}
	]
}

## ECS running on 64bit Amazon Linux 2