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devops

Adobe DevOps Exercise

Out of brevity, the IAM policy used was that of a System Administrator. These are not locked down and would be in a real-world environment.

As opposed to having the source code inline with the CloudFormation template, I have instead opted to create the Lambda Function beforehand in an S3Bucket that's also freshly created. I could have scripted it to build the first S3 Bucket, upload the lambda function, and then run a second CloudFormation template, but opted for this way, instead.

Dependencies

Before you get started, review the dependencies.
python3
python3-distutils python3 distribution utilities. Required for pip/pip3.
pip3 python3 package installer. Required for boto3.
boto3 python3 package. Amazon's official AWS Python SDK.
awscli python3 package. Amazon's official command line API interface. Can be installed via pip3, apt, or yum.

File List

Filename Notes
README.md This file
bin/create_cf_stack.py Handles AWSCLI creation of CloudFormation Stacks
bin/create_stack Wrapper for the above Python script
bin/delete_cf_stack.py Handles AWSCLI deletion of CloudFormation Stacks
bin/delete_stack Wrapper for the above Python script
bin/show_cf_stacks.py Displays Cloudformation stacks
bin/upload Script that uploads lambda source to S3
bin/upload_to_s3.py Upload an arbitrary file to an S3 bucket
bin/lambda/lambda.zip Gets overwritten every time lambda function code gets updated
bin/lambda/s3trigger.py The actual Lambda function
bin/lambda/s3upload.py Triggered by API Gateway to upload a file to S3 (not implemented)
bin/lambda/update_code.py Updates lambda function
cf/cf.yml The complete CloudFormation template
config/aws.ini Config file for the CloudFormation python scripts
data/data.sql Sample data file 1
data/lorem.txt Sample data file 2
supplied/DevOps-Engineer-EA-Applicant-Exercise.pdf The provided instruction file
supplied/data.sql Sample data file 1

Cost Details

Cost calculations have been recorded in a Google Sheets file: https://docs.google.com/spreadsheets/d/1zUh-UcVAlMzrEUit3MRz-RyV83yXY1Ysk_HhCrwJOQQ/edit#gid=1913793038

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