[Epic] Adding LlamaIndex components

[logan-markewich]

Took a quick browse through components. And nearly everything is built on langchain...

LlamaIndex has everything, plus with the recent introduction of workflows, is even more useful as a generic Orchestration piece

Going to use this issue to track adding llamaindex components

Components missing from llamaindex

• [ ] agents
• [ ] data prep
• [ ] knowledge graphs
• [ ] llms
• [ ] rerankers
• [ ] retrievers
• [ ] vector stores
• [ ] generic workflows as a service

[kevinintel]

I check the comps, lots of comps already supprots llamaindex. llm, dataprep, embedding, retrieval....

[kevinintel]

https://github.com/opea-project/GenAIComps/tree/main/comps/retrievers/llamaindex https://github.com/opea-project/GenAIComps/tree/main/comps/embeddings/llama_index

[logan-markewich]

@kevinintel doing some inventory

• data prep => only redis, llama-index should support any of these and more https://github.com/opea-project/GenAIComps/tree/main/comps/dataprep
• embeddings => yes supported (although with some bugs + extra considerations). Not listed in the original list above
• knowledge graphs => no support https://github.com/opea-project/GenAIComps/tree/main/comps/knowledgegraphs
• llms => I don't actually see any llama-index llms https://github.com/opea-project/GenAIComps/tree/main/comps/llms/text-generation
• lvms => also none, but less important https://github.com/opea-project/GenAIComps/tree/main/comps/lvms
• rerankers => none https://github.com/opea-project/GenAIComps/tree/main/comps/reranks
• retrievers => only redis https://github.com/opea-project/GenAIComps/tree/main/comps/retrievers/llamaindex
• vector stores => none https://github.com/opea-project/GenAIComps/tree/main/comps/vectorstores

[kevinintel]

Yes, we plan to supprot more comps with llamaindex. You can also contribute to comps.