1. Install chalice framework locally: learn more from chalice quick start
# check your python version
python3 --version
# if you are something like Python 3.7.3 and above, you are good to go!
# Next we’ll install Chalice using pip:
python3 -m pip install chalice
# You can verify you have chalice installed by running:
chalice --help
chalice new-project your-project-name
# create this folder if you don't have it
mkdir ~/.aws
cat >> ~/.aws/config
[default]
aws_access_key_id=YOUR_ACCESS_KEY_HERE
aws_secret_access_key=YOUR_SECRET_ACCESS_KEY
region=YOUR_REGION (such as us-west-2, us-west-1, etc)
cp requirements.txt requirements-docker.txt
# Add this one line to requirements-docker.txt
# you need it to make sure that you have chalice in your Docker container.
chalice
- Create custom Dockerfile
FROM alpine:3.7
WORKDIR /app
COPY requirements-docker.txt ./
RUN \
apk add --no-cache python3 postgresql-libs && \
apk add --no-cache --virtual .build-deps gcc python3-dev musl-dev && \
apk add --no-cache postgresql-dev && \
python3 -m pip install -r requirements-docker.txt --no-cache-dir && \
python3 -m pip install --upgrade pip && \
apk --purge del .build-deps
COPY . .
CMD [ "/bin/sh"]
- Create environment file. It will be used in your docker-compose file later.
touch .env
vi .env
######
# Add put there the following content:
#
# YOUR_AWS_ACCESS_KEY_ID
# YOUR_AWS_SECRET_ACCESS_KEY
# YOUR_REGION
# fill with actual aws credentials, taken from
# cat ~/.aws/config
######
APP_NAME=
APP_PATH=/app/${APP_NAME}
AWS_ACCESS_KEY_ID={YOUR_AWS_ACCESS_KEY_ID}
AWS_SECRET_ACCESS_KEY={YOUR_AWS_SECRET_ACCESS_KEY}
AWS_DEFAULT_REGION={YOUR_REGION}
- Create docker-compose.yaml file with following contents
version: "3.8"
services:
app:
build: .
env_file:
- .env
ports:
- "80:8000"
volumes:
- .:/app
tty: true
stdin_open: true
working_dir: "${APP_PATH}"
environment:
- AWS_ACCESS_KEY_ID=${AWS_ACCESS_KEY_ID}
- AWS_SECRET_ACCESS_KEY=${AWS_SECRET_ACCESS_KEY}
- AWS_DEFAULT_REGION=${AWS_DEFAULT_REGION}
- Build and run containers
docker-compose up --build -d
# just copy/paste it to your app.py
@app.lambda_function()
def mylambda(event, context):
return {'response': 'great'}
docker-compose run app chalice deploy
Here you might want to install AWS CLI first. PLease learn how to to it from here:
aws lambda list-functions
You'll have listing of lambda files in json format.
Look for something like "FunctionName": "your-lambda-function-name"
In my case lambda function name is dockerized-dev, so, the command will look like this:
aws lambda invoke --function-name dockerized-dev result.txt
Where result.txt will keep the response from your lambda.
cat result.txt
And you'll get {'response': 'great'} in it. If not....
Check this repo: or drop me a line:
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