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Adding the demo from AWS C3.

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Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>
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Chad Metcalf 2020-07-07 22:20:27 -07:00 committed by Nicolas De Loof
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25
ecs/demo/Makefile Normal file

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REPO_NAMESPACE ?= ${USER}
FRONTEND_IMG = ${REPO_NAMESPACE}/timestamper
REGISTRY_ID ?= PUT_ECR_REGISTRY_ID_HERE
DOCKER_PUSH_REPOSITORY=dkr.ecr.us-west-2.amazonaws.com
all: build-image
create-ecr:
aws ecr create-repository --repository-name ${FRONTEND_IMG}
build-image:
docker build -t $(REGISTRY_ID).$(DOCKER_PUSH_REPOSITORY)/$(FRONTEND_IMG) ./app
docker build -t $(FRONTEND_IMG) ./app
push-image-ecr:
aws ecr get-login-password --region us-west-2 | docker login -u AWS --password-stdin $(REGISTRY_ID).$(DOCKER_PUSH_REPOSITORY)
docker push $(REGISTRY_ID).$(DOCKER_PUSH_REPOSITORY)/$(FRONTEND_IMG)
push-image-hub:
docker push $(FRONTEND_IMG)
clean:
@docker context use default
@docker context rm aws || true
@docker-compose rm -f || true

107
ecs/demo/README.md Normal file

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## Compose sample application
### Python/Flask application
```
+--------------------+ +------------------+
| | | |
| Python Flask | timestamps | Redis |
| Application |------------->| |
| | | |
+--------------------+ +------------------+
```
### Things you'll need to do.
There are a number of places you'll need to fill in information. You can find them with:
```
grep -r '<<<' ./*
./docker-compose.yml: x-aws-pull_credentials: <<<your arn for your secret you can get with docker ecs secret list>>>
./docker-compose.yml: image: <<<yourhubname>>>/timestamper
## Walk through
```
### Setup pull credentials for private Docker Hub repositories
You should use a Personal Access Token (PAT) vs your default password. If you have 2FA enabled on your Hub account you will have to create a PAT. You can read more about managing access tokens here: https://docs.docker.com/docker-hub/access-tokens/
```
docker ecs secret create -d MyKey -u myhubusername -p myhubpat
```
### Create an AWS Docker context and list available contexts
```
docker ecs setup
Enter context name: aws
✔ sandbox.devtools.developer
Enter cluster name:
Enter region: us-west-2
✗ Enter credentials:
docker context ls
NAME DESCRIPTION DOCKER ENDPOINT KUBERNETES ENDPOINT ORCHESTRATOR
aws
default * Current DOCKER_HOST based configuration unix:///var/run/docker.sock swarm
```
### Test locally
```
docker context use default
docker-compose up
open http://localhost:5000
```
### Push images to hub for ecs (ecs cannot see your local image cache)
```
docker-compose push
```
### Switch to ECS context and launch the app
```
docker context use aws
docker ecs compose up
```
### Check out the CLI
```
docker ecs compose ps
docker ecs compose logs
```
### Check out the aws console
- cloud formation
- cloud watch
- security groups
- Load balancers (ELB for this example / ALB if your app only uses 80/443)
### Checkout cloudformation
```
docker ecs compose convert
```
### Stop the meters
```
docker ecs compose down
```
## Using Amazon ECR instead of Docker Hub
[Makefile](Makefile) has an example setup for creating an ECR repository and pushing to it. You'll need to have the AWS CLI installed and your AWS credentials available.
```
make create-ecr
REGISTRY_ID=<from the create above> make build-image
REGISTRY_ID=<from the create above> make push-image-ecr
```
If you want to use this often, you'll likely want to replace `PUT_ECR_REGISTRY_ID_HERE` with the value from above.

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ecs/demo/app/Dockerfile Normal file

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FROM python:3.7-alpine
WORKDIR /app
COPY requirements.txt /app
RUN pip3 install -r requirements.txt
COPY . /app
ENTRYPOINT ["/app/scripts/entrypoint.sh"]
CMD ["python3", "app.py"]

19
ecs/demo/app/app.py Normal file

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from flask import Flask
from flask import render_template
from redis import StrictRedis
from datetime import datetime
app = Flask(__name__)
redis = StrictRedis(host='backend', port=6379)
@app.route('/')
def home():
redis.lpush('times', datetime.now().strftime('%Y-%m-%dT%H:%M:%S%z'))
return render_template('index.html', title='Home',
times=redis.lrange('times', 0, -1))
if __name__ == '__main__':
app.run(host='0.0.0.0', debug=True)

2
ecs/demo/app/requirements.txt Normal file

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flask
redis

4
ecs/demo/app/scripts/entrypoint.sh Executable file

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#! /bin/sh
if [ "${LOCALDOMAIN}" != "" ]; then echo "search ${LOCALDOMAIN}" >> /etc/resolv.conf; fi
exec "$@"

125
ecs/demo/app/templates/index.html Normal file

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<!DOCTYPE html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8" />
<meta
name="viewport"
content="width=device-width, initial-scale=1, shrink-to-fit=yes"
/>
<!-- Bootstrap CSS -->
<link
rel="stylesheet"
href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css"
integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS"
crossorigin="anonymous"
/>
<title>Hello, Docker!</title>
</head>
<body>
<div class="container">
<nav class="navbar sticky-top navbar-expand-lg navbar-dark bg-dark">
<a class="navbar-brand" href="/">Demo</a>
<button
class="navbar-toggler"
type="button"
data-toggle="collapse"
data-target="#navbarNav"
aria-controls="navbarNav"
aria-expanded="false"
aria-label="Toggle navigation"
>
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav">
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Compose Spec
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="https://compose-spec.io/">Overview</a>
<a class="dropdown-item" href="https://github.com/compose-spec/compose-spec/blob/master/spec.md">Specification</a>
<a class="dropdown-item" href="https://github.com/docker/awesome-compose">Awesome Compose - Compose Examples</a>
</div>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Get Docker Desktop
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="https://download.docker.com/mac/stable/Docker.dmg?utm_source=demo&utm_medium=web%20referral&utm_campaign=awsc32020&utm_budget=">Mac</a>
<a class="dropdown-item" href="https://download.docker.com/win/stable/Docker%20Desktop%20Installer.exe?utm_source=demo&utm_medium=web%20referral&utm_campaign=awsc32020&utm_budget=">Windows</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link" href="https://hub.docker.com/signup?utm_source=demo&utm_medium=web%20referral&utm_campaign=awsc32020&utm_budget="
>Sign up for Docker Hub</a
>
</li>
<li class="nav-item">
<a class="nav-link" href="https://docs.aws.amazon.com/AmazonECS/latest/developerguide/Welcome.html"
>Amazon ECS Docs</a
>
</li>
</ul>
</div>
</nav>
<br />
<h1>Hello, Docker Folks!</h1>
<br />
<div class="container-sm">
<div class="text-center">
<!-- Button trigger modal -->
<a class="btn btn-primary" href="/">
Timestamp!
</a>
</div>
<br />
<div class="table-responsive">
<table class="table table-striped table-hover table-sm">
<thead>
<tr>
<th scope="col">Timestamp</th>
</tr>
</thead>
<tbody>
{% for t in times %}
<tr>
<td>{{ t.decode('utf-8') }}</td>
</tr>
{% endfor %}
</tbody>
</table>
</div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script
src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin="anonymous"
></script>
<script
src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.6/umd/popper.min.js"
integrity="sha384-wHAiFfRlMFy6i5SRaxvfOCifBUQy1xHdJ/yoi7FRNXMRBu5WHdZYu1hA6ZOblgut"
crossorigin="anonymous"
></script>
<script
src="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/js/bootstrap.min.js"
integrity="sha384-B0UglyR+jN6CkvvICOB2joaf5I4l3gm9GU6Hc1og6Ls7i6U/mkkaduKaBhlAXv9k"
crossorigin="anonymous"
></script>
</body>
</html>

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ecs/demo/docker-compose.yml Normal file

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version: "3.8"
services:
frontend:
build: app
x-aws-pull_credentials: <<<your arn for your secret you can get with docker ecs secret list>>>
image: <<<yourhubname>>>/timestamper
ports:
- "5000:5000"
depends_on:
- backend
backend:
image: redis:alpine