Python script using boto3 to copy ElastiCache to S3

export_redis_to_s3.py

#!/bin/env python

import boto3
import os
import time
from datetime import datetime

cluster_name = os.environ["CLUSTER_NAME"]
dest_bucket = os.environ["DEST_BUCKET"]
env_name = os.environ["ENV"]
aws_region = os.environ["AWS_REGION"]

start_time = datetime.now()
backup_time = start_time.strftime("%Y-%m-%d-%H-%M-%S")

elasticache = boto3.client('elasticache', region_name=aws_region)

backup_name = f'{env_name}-{cluster_name}-{backup_time}'

print(f'Backing up {cluster_name} to backup named {backup_name}')

response = elasticache.create_snapshot(
    CacheClusterId=cluster_name,
    SnapshotName=backup_name
)

while True:
    time.sleep(10)
    response = elasticache.describe_snapshots(
        SnapshotName=backup_name,
        ShowNodeGroupConfig=False
    )
    status = response['Snapshots'][0]['SnapshotStatus']
    print(f'{backup_name} is {status}')
    if status == "available":
        response = elasticache.copy_snapshot(
            SourceSnapshotName=backup_name,
            TargetSnapshotName=f'{env_name}/{backup_name}',
            TargetBucket=dest_bucket
        )
        break

time_to_complete = datetime.now() - start_time
print(f'{backup_name} was copied to s3://{dest_bucket}/{env_name}/{backup_name} in {time_to_complete}')