![]() ![]() herong> del Hello.class herong> jar -extract -verbose -file. Please let me know your thoughts in the comments. To extract all files out of a JAR file, you can using the jar -extract -file. Print("target_bucket_name: records.".format( However, running this code after the first failed attempt works fine. The second proc.waitFor () returns exit code 2. Target_bucket_name = os.environ.get('TARGET_BUCKET', '') proc runtime.exec (mountCommand) proc.waitFor () proc runtime.exec (extractCommand) proc.waitFor () Running the mount command and extract command in the terminal works fine, but fails when FIRST run in java. Then, finally, we're going to upload the files to the target s3 bucket from the local file system. So, we're going to give a path /tmp/extracted for storing the extracted files. This tarfile package requires a file system path to write to. We're going to use tarfile package to untar the files. The actual untar happens in this lambda function. S3.EventType.OBJECT_CREATED, notification) # assign notification for the s3 event type (ex: OBJECT_CREATED) Notification = aws_s3_notifications.LambdaDestination(unzip_fn) "TARGET_BUCKET": unzip_bucket.bucket_name # Name of the function and its entry point This lambda function may need read access to the source s3 bucket and write permission to the target s3 bucket so that the lambda function can untar files and write to the target bucket.Īnd, we would need to trigger the lambda whenever a tar file is uploaded to the source s3 bucket zip_bucket = s3.Bucket(Ĭode=lambda_.om_asset("./lambdas"), We would be using Python runtime environment and we'll be giving necessary permissions to this lambda function. I'm using the below code to create a source bucket( tar_bucket ) and target bucket ( untar_bucket ) - random numbers are appended to the bucket names just to make the bucket names unique. We're going to use Python in this article.Īt a high level, we just need 3 resources Work with TAR file format, archiving and extraction (UNTAR) Manage TAR archives with PeaZip PeaZip free archiver offers full read / write support (create, open and extract tar) for uncompressed and compressed TAR archives - TAR.GZ archives (same as TGZ extension), TAR.BZ2 archives (alternative file extensions TBZ, TB2, TBZ2), TAR.BR, TAR. You can learn more about AWS CDK from a beginner's guide here. AWS CDK supports many languages including TypeScript, Python, C#, Java, and others. ![]() It's an open-source software development framework that lets you define cloud infrastructure. We're going to use AWS CDK for creating the necessary infrastructure. I've written a similar article to unzip files here Infrastructure The idea is to use tarfile python package to untar the files and write them to /tmp directory and then copy all the files to the target bucket ![]()
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