acpytest

Python/Flask app for testing infrastructure

• Displays environment variables

• Connects to DB instance

• Stress functions based on: https://github.com/mattixtech/stress

LOCAL DEV WITH PYTHON-VIRTUALENV

1. install prerequisites

   brew install python3 pyenv pyenv-virtualenv virtualenv
   

2. create virtualenv

   virtualenv venv
   

3. activate virutalenv

   . venv/bin/activate
   

4. verify virtual python version

   python --version
   

5. install pip packages to virutalenv

   pip install -r ./requirements.txt
   

6. run app

   python3 ./main.py
   

BUILD DOCKER CONTAINER IMAGE

• NOTE: Relies on version tag in version.py

• on M1 Mac (requires special 'buildx' invocation)

    TAG=`cat version.py | cut -f2 -d= | tr -d \'`; docker buildx build --platform linux/amd64 -t acutchinbitpusher/actest:$TAG .
  

• on Linux

    TAG=`cat version.py | cut -f2 -d= | tr -d \'`; docker build -f Dockerfile -t acutchinbitpusher/actest:$TAG .
  

RUN THE CONTAINER IMAGE LOCALLY

1. set shell environment variables for convenience

    export CONTAINER='<container_name>'
   

2. build the container according to the Dockerfile

    docker build -t $CONTAINER $PWD
   

3. run the container on port 8080

    docker run -d -p 8080:80 -t $CONTAINER
   

4. observe the new image and running container

    docker ps -a; echo; docker images
   

5. curl the container:8080 to test

    curl http://localhost:8080
   

6. stop/delete the image

    docker stop $CONTAINER && docker rm $CONTAINER
   

7. repeatedly stop/delete/rebuild the container and test curl:

   1. first time

       docker stop $CONTAINER && docker rm $CONTAINER && docker build -t $CONTAINER . && docker run -d -p 8080:80 --name $CONTAINER $CONTAINER && echo "sleeping 5..." && sleep 5 && curl http://localhost:8080/index.html && echo && echo && docker logs $CONTAINER
      

   2. repeatedly thereafter

       docker stop $CONTAINER && docker rm $CONTAINER && docker build -t $CONTAINER . && docker run -d -p 8080:80 --name $CONTAINER $CONTAINER && echo "sleeping 5..." && sleep 5 && curl http://localhost:8080/index.html && echo && echo && docker logs $CONTAINER
      

Push to Registry

• DockerHub

    TAG=`cat version.py | cut -f2 -d= | tr -d \'`; docker push acutchinbitpusher/actest:$TAG
  

• AWS ECR

  1. Set shell environment variables for convenience

       export CONTAINER='<container_name>'; export ECR_ACCOUNT_ID='<ecr_account_id>'; export ECR_REGION='<ecr_region>'; export TAG=`cat version.py | cut -f2 -d= | tr -d \'`; export ECR_URL="$ECR_ACCOUNT_ID.dkr.ecr.$ECR_REGION.amazonaws.com"
     

  2. Rebuild the image for EC2/ECS hardware platform, if necessary

       docker build --platform linux/amd64 -t $CONTAINER $PWD
     

  3. Import AWS creds to shell environment

       awsume `<aws_account_name>`
     

  4. Log in to ECR

       aws --region $ECR_REGION ecr get-login-password | docker login --username AWS --password-stdin $ECR_URL
     

     • you should see "Login Succeeded"

  5. tag the container with the ECR info

       docker tag $CONTAINER $ECR_URL/$CONTAINER:latest
     

  6. push image to ECR

       docker push $ECR_URL/$CONTAINER
     

LOAD NEW IMAGE

• BITPUSHER CHEF/DOCKER EC2 INSTANCES

    chef-client
  

• ECS

    aws --region $AWS_DEFAULT_REGION ecs update-s ervice --cluster <ecs_cluster_name> --service <ecs_service_name> --force-new-deployment