Cross-Region Replication S3 Buckets - Bash Glue

global.sh

#!/bin/bash

set -e

if [ -z ${STAGE_ENV+x} ]; then
  echo "Missing STAGE_ENV env variable!"
  exit 126
fi

REGION1="us-east-1"
REGION2="us-west-2"

OUTPUTS1=$(
  aws cloudformation describe-stacks \
    --region "${REGION1}" \
    --stack-name "mylambda-${STAGE_ENV}-${REGION1}" | \
    jq -r ".Stacks[0].Outputs[]"
)

OUTPUTS2=$(
  aws cloudformation describe-stacks \
    --region "${REGION2}" \
    --stack-name "mylambda-${STAGE_ENV}-${REGION2}" | \
    jq -r ".Stacks[0].Outputs[]"
)

echo "---------------------------------------"
echo "Creating S3 Cross-Region Replication..."
echo "---------------------------------------"

ROLE=$(echo "$OUTPUTS1" | jq -r "select(.OutputKey == \"MyBucketRepRoleArn\").OutputValue")

BUCKET1=$(echo "$OUTPUTS1" | jq -r "select(.OutputKey == \"MyBucketName\").OutputValue")
BUCKET2=$(echo "$OUTPUTS2" | jq -r "select(.OutputKey == \"MyBucketName\").OutputValue")

BUCKETARN1=$(echo "$OUTPUTS1" | jq -r "select(.OutputKey == \"MyBucketArn\").OutputValue")
BUCKETARN2=$(echo "$OUTPUTS2" | jq -r "select(.OutputKey == \"MyBucketArn\").OutputValue")

REPCONF1=$(cat <<EOT
  {
    "Role": "${ROLE}",
    "Rules": [
      {
        "ID": "my-bucket-${REGION1}",
        "Destination": {
          "Bucket": "${BUCKETARN2}",
          "StorageClass": "STANDARD"
        },
        "Prefix": "",
        "Status": "Enabled"
      }
    ]
  }
EOT
)
echo $REPCONF1 > /tmp/repconf1.json

REPCONF2=$(cat <<EOT
  {
    "Role": "${ROLE}",
    "Rules": [
      {
        "ID": "my-bucket-${REGION2}",
        "Destination": {
          "Bucket": "${BUCKETARN1}",
          "StorageClass": "STANDARD"
        },
        "Prefix": "",
        "Status": "Enabled"
      }
    ]
  }
EOT
)
echo $REPCONF2 > /tmp/repconf2.json

pipenv run aws s3api put-bucket-replication \
  --bucket "${BUCKET1}" \
  --replication-configuration file:///tmp/repconf1.json

pipenv run aws s3api put-bucket-replication \
  --bucket "${BUCKET2}" \
  --replication-configuration file:///tmp/repconf2.json