Removing Docker build dependency from build phase

[cagataycali]

While creating OpenSearch serverless vector index, we’re using Dockerized python app to create mappings in given vector collection, CDK environments are mostly Docker based solutions and leads to docker-in-docker support requirements.

We can remove the Docker phrase from the initial configuration to make the process simpler ^^

generative-ai-cdk-constructs/lambda/opensearch-serverless-custom-resources/custom_resources/opensearch_index.py

Line 179 in fab3bba

def create_index(