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Deployment on Kubernetes is done using Helm charts. We provide a Helm chart to deploy the Indexify server and executor on Kubernetes. The Helm chart is very lightweight and is meant to be a starting point for deploying Indexify on Kubernetes. It is not meant to be a one-size-fits-all solution, and you may need to customize it to fit your needs. But we are always open to contributions and feedback to make it more useful for everyone!

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Components

  • Server - The API server which manages the graph and orchestrates the execution of functions. It is deployed as a StatefulSet; the server is a stateful application, and it requires a persistent volume to store the state of the execution graph. The server requires a blob store to store the output of functions.
  • Executor - Executors are the workers that execute the functions in the graph. They are deployed as a Deployment. The helm chart deploys the default executor by default, but you can customize it to deploy many executors with the same Indexify server.
  • Blob Store - The blob store is used to store the output of functions. We require using an S3 like service for the blob store. The credentials are stored as a Kubernetes secret and mounted as environment variables in the server.

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Values

The Helm chart is parameterized with the following values:

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Required

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Blob Store

  • blobStore.endpoint - The endpoint for the blob store.
  • blobStore.config.s3.accessKey - The access key for the blob store.
  • blobStore.config.s3.secretKey - The secret key for the blob store.
  • blobStore.allowHTTP - Whether to allow HTTP connections to the blob store.

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Server

  • server.persistance.size - The size of the persistent volume for the server.
  • server.persistance.storageClass - The storage class for the persistent volume. This will depend on the cloud provider you are using. For example, standard for GCP, gp2 for AWS, etc.

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Optional

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Server

  • server.image - The Docker image for the Indexify server.
  • server.ingress.enabled - Whether to create an Ingress resource for the server.

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Executors

  • executors.replicas - The number of replicas for the executor. 1 by default.
  • executors.image - The Docker image for the Indexify executor.
  • executors.name - The name of the executor. indexify-executor by default.
Adding additional executors
You can add additional executors by adding a new key under executors in the values file. For example, to add a new executor with the name indexify-executor-2, you can add the following: 
executors:
  - name: indexify-pdf-blueprint-downloader
    image: tensorlake/pdf-blueprint-download:latest
    replicas: 1
  - name: indexify-pdf-blueprint-parser
    image: tensorlake/pdf-blueprint-pdf-parser:latest
    replicas: 1
  - name: indexify-pdf-blueprint-lancdb
    image: tensorlake/pdf-blueprint-lancdb
    replicas: 1
  - name: indexify-pdf-blueprint-st
    image: tensorlake/pdf-blueprint-st:latest
    replicas: 1
In each executor, one has to specify the name, image, and replicas of the executor.

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Dependencies

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Blob Store

We recommend using an S3 like service for the blob store. Our local helm values override uses minio for this. See the [environment variable patch][minio/api.yaml] for how this gets configured.

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GCP

  • You’ll want to create a HMAC key to use as AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY.
  • Set AWS_ENDPOINT_URL to https://storage.googleapis.com/

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Other Clouds

Not all clouds expose a S3 interface. For those that don’t check out the s3proxy project. However, we’d love help implementing your native blob storage of choice! Please open an issue so that we can have a discussion on how that would look for the project.
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