ecr image example

ecr/Readme.md

@@ -0,0 +1,78 @@
+## Install requirements
+
+```sh
+cd app
+pip install -r requirements.txt
+```
+
+## Run without a container
+
+```sh
+python app.py
+```
+
+This should start the app on port `5000`
+
+## Test the endpoint for local app
+
+```sh
+curl localhost:5000/api/hello
+curl localhost:5000/api/hello?name=Andrew+Brown
+```
+
+## Build Image
+
+```sh
+docker build -t  app ./app
+```
+
+## Run the Container
+
+```sh
+docker run --rm -p 4567:4567 -it app
+```
+
+## Test the endpoint for local container app
+
+```sh
+curl localhost:4567/api/hello
+curl localhost:4567/api/hello?name=Andrew+Brown
+```
+
+## Create ECR Repos
+
+
+aws ecr create-repository \
+--repository-name python \
+--image-tag-mutability IMMUTABLE
+
+aws ecr create-repository \
+--repository-name app \
+--image-tag-mutability MUTABLE
+
+## Login to ECR
+
+```sh
+aws ecr get-login-password --region ca-central-1 | docker login \
+ --username AWS \
+ --password-stdin 982383527471.dkr.ecr.ca-central-1.amazonaws.com
+ ```
+
+ ### Pull, Tag and Push Python Image
+
+
+```sh
+docker pull python:3.13.0a6-slim-bookworm
+docker tag python:3.13.0a6-slim-bookworm 982383527471.dkr.ecr.ca-central-1.amazonaws.com/python:3.13.0a6-slim-bookworm
+docker push 982383527471.dkr.ecr.ca-central-1.amazonaws.com/python:3.13.0a6-slim-bookworm
+```
+
+ ### Build, tag and push app container
+
+ > Update the Dockerfile to reference our python image in ECR
+
+```sh
+docker build -t app .
+docker tag app:latest 982383527471.dkr.ecr.ca-central-1.amazonaws.com/app:latest
+docker push 982383527471.dkr.ecr.ca-central-1.amazonaws.com/app:latest
+```

ecr/app/Dockerfile

@@ -0,0 +1,28 @@
+# FROM python:3.13.0a6-slim-bookworm
+FROM 982383527471.dkr.ecr.ca-central-1.amazonaws.com/python:3.13.0a6-slim-bookworm
+
+# Inside Container
+# make a new folder inside container
+WORKDIR /app
+
+# Outside Container -> Inside Container
+# this contains the libraries want to install to run the app
+COPY requirements.txt requirements.txt
+
+# Inside Container
+# Install the python libraries used for the app
+RUN pip3 install -r requirements.txt
+
+# Outside Container -> Inside Container
+# . means everything in the current directory
+# first period . - /app (outside container)
+# second period . /app (inside container)
+COPY . .
+
+EXPOSE ${PORT}
+
+ENV PYTHONUNBUFFERED=1
+
+# CMD (Command)
+# python3 -m flask run --host=0.0.0.0 --port=4567
+CMD [ "python3", "-m" , "flask", "run", "--host=0.0.0.0", "--port=4567", "--debug"]

ecr/app/app.py

@@ -0,0 +1,22 @@
+from flask import Flask
+from flask import request
+import os
+
+app = Flask(__name__)
+
+@app.route("/api/hello", methods=['GET'])
+def hello():
+    model = {'errors': None}
+    name = request.args.get('name')
+    if not name:
+        model['errors'] = [{"msg": "Name not provided"}]
+    else:
+        model['data'] = {"msg": f"Hello {name}!"}
+
+    if 'errors' in model and model['errors'] is not None:
+        return model['errors'], 422
+    else:
+        return model['data'], 200
+
+if __name__ == "__main__":
+    app.run(debug=True)

ecr/app/requirements.txt

@@ -0,0 +1 @@
+flask