Rolls back a single function to a previously published Lambda version without running a full CloudFormation deployment. Use it to quickly revert a code change to one function; to roll back the whole service (infrastructure and all functions), use osls rollback instead.
osls rollback function --function <name> \
--function-version <version>Note: You can only rollback a function which was previously deployed through osls deploy. Functions are not versioned when running osls deploy function.
Note: This command is not supported for functions configured with durableConfig locally or already deployed with durable configuration in AWS. Use osls deploy to publish and retarget durable function versions.
--functionor-fThe name of the function which should be rolled back. Required.--function-versionThe version to which the function should be rolled back. Required.
osls rollback function repoints the function to the code and configuration of an existing published Lambda version. It is a code-and-configuration swap only: it does not roll back data in DynamoDB, S3, RDS, or any other stateful resource, and it does not touch the rest of your CloudFormation stack.
You can only roll back to a version that was published by a previous osls deploy. Functions deployed with osls deploy function are not versioned, so they cannot be used as rollback targets. Use osls deploy list functions to see the versions still available.
At first you want to run osls deploy list functions to see all the deployed functions of your service and their corresponding versions.
After picking a function and the version you can run the osls rollback function command to rollback the function.
E.g. osls rollback function -f my-function --function-version 23 rolls back the function my-function to the version 23.