Append timestamp to a S3 bucket folder in builspec.yaml file - amazon-web-services

Question

I am new to YAML file. I want to append Timestamp to S3 bucket folder every time so that each build will be unique. In the post_build I append timestamp to S3 bucket as follows. When the codepipeline is triggered all files are stored to S3 bucket Inhouse folder but folder with timestamp is not getting generated. s3://${S3_BUCKET}/Inhouse/${'date'}
Version: 0.2
env:
variables:
S3_BUCKET: Inhouse-market-dev
phases:
install:
runtime-versions:
nodejs: 10
commands:
- npm install
- npm install -g #angular/cli
build:
commands:
- echo Build started on `date`
post_build:
commands:
- aws s3 cp . s3://${S3_BUCKET}/Inhouse/${'date'} --recursive --acl public-read --cache-control "max-age=${CACHE_CONTROL}"
- echo Build completed on `date`

Answer 1

I think your use of ${'date'} is incorrect. I would recommend trying the following to actually get the unix timestamp:
post_build:
commands:
- current_timestamp=$(date +"%s")
- aws s3 cp . s3://${S3_BUCKET}/Inhouse/${current_timestamp} --recursive --acl public-read --cache-control "max-age=${CACHE_CONTROL}"
- echo Build completed on `date` which is ${current_timestamp}