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Initial Wasm Golang Transform SDK #12322
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Add the Apache 2.0 License as developers will be linking this into their custom Wasm transforms. Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
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CI Failure: #12344 |
The js directory has been deleted, and in redpanda-data#12322 we're introducing the SDK for golang Wasm data transforms. More build/CI changes will come in later PRs. Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
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Is there any high-level documentation that helps place this PR into the broader picture? Is this fully independent of redpanda core or calls out to redpanda apis or Kafka apis etc..?
I took a pass at laying out the major pieces involved in transforms and where this fits in. |
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This package is a resizable buffer that tracks a reader and writer index and is generally easier to use than bytes.Buffer for what we're trying to do when reading/writing across the Wasm FFI boundary. Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This is the initial SDK for Wasm transforms. We have an ABI that we expect from the broker, and the broker expects from this SDK. We mostly pass buffers back and forth across the ABI boundary, and in these buffers are Kafka wire format serialized records. We operate on single records at a time so that we use as little memory as possible within the Wasm runtime (there is very little overhead to the Wasm function calls). Lastly, the ABI is stubbed out on platforms other than Wasm so you can test with the SDK without running it in Wasm. Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
We add some simple documentation, and three examples. Mirror: the simplest transform possible, just copy data to another topic. Regexp Filter: Shows off main() setup and environment variable configuration Transcoding: Hopefully something a little more real world without pulling in Avro or some third party library. Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
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Force pushed to fix lint errors (I will add linting to GitHub actions in another PR) |
I've added a video to the PR description that is a code walkthrough of the PR. If it's helpful |
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This commit defines a ABI for wasm modules to perform transforms within redpanda. There are also helpers for custom host bindings that are defined in an engine agnostic way. See redpanda-data#12322 for the corresponding guest side bindings as well as a video overview of the ABI contract. Additionally, a WASI module is defined, which supports a subset of the WASI standard. Namely, environment variables and writing to std{out,err} is supported. There are currently bindings to both WasmEdge and wasmtime, although the wasmtime integration is mostly experimental and can easily crash the redpanda process (see scylladb/scylladb#14163). Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
This patch set implements the initial ABI + SDK for Redpanda's data transforms.
There are 3 major pieces to Wasm Data Transforms:
rpk transform
commands that allow you to write, manage and deploy transformsSee the individual commits for more information on the actual SDK pieces.
I'll open another PR after this one for Github Actions to run on these. In the meantime, I've run these manually.
Here is a companion video to aid reviews if that's helpful. I recommend watching on 2x 😄
Backports Required
Release Notes
Features