Hi I m trying to use `docker setup script` with the example BentoML #ask-for-help

Hi, I'm trying to use `docker: setup_script` with ...

Max F

02/19/2025, 11:06 PM

Hi, I'm trying to use

docker: setup_script

with the example given in bento-build-options but containerize is failing b/c it is unable to find the setup script:

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#13 [base-container  9/12] RUN chmod +x ./env/docker/script__9d1f8130046bce7702569a931db2dac3 && ./env/docker/script__9d1f8130046bce7702569a931db2dac3  
#13 0.543 chmod: cannot access './env/docker/script__9d1f8130046bce7702569a931db2dac3': No such file or directory

Is there anything additional I need to add to get it work? For reference my bentofile and shell script:

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service: "service:Example"
include:
  - "*.py"
  - "*.sh"
python:
  packages:
    - "nltk"
docker:
  setup_script: "./setup.sh"

and

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#!/bin/bash
set -euxo pipefail

echo "Downloading NLTK data.."
python -m nltk.downloader all

Frost Ming

02/20/2025, 8:44 AM

Hi, this bug is fixed in v1.4.0

👍 1

Pierre Lecerf

04/07/2025, 2:28 PM

Hi there @Frost Ming 👋 I'm still having this issue with BentoML

1.4.7

. It's possible that the path for the

setup_script

does not play nice with the build-context option. I've tried notably: •

include

/my-dir/docker-setup.sh

•

setup_script

"/my-dir/docker-setup.sh"

• service build context :

/my-dir

• the error mentions

FileNotFoundError: [Errno 2] No such file or directory: b'/my-dir/my-dir/docker-setup.sh'

If I try to change

setup_script

"./docker-setup.sh"

, then the error becomes

FileNotFoundError: [Errno 2] No such file or directory: b'/my-dir/docker-setup.sh'

Of note: this is in order to fix the issue mentioned here.

Pierre Lecerf

04/07/2025, 3:27 PM

The weird thing is that I can't seem to be able to reproduce it with the BentoML CLI, with various combinations of build-context, script placement and configuration. When I look at the generated Dockerfile it contains a line for the script with a hashed/generated name, and it invariably contains what's in my

docker-setup.sh

script. It only crashes when ran from a

bentos.build_bentofile

call, there it fails and cannot locate the file.

Pierre Lecerf

04/07/2025, 5:27 PM

OK so, here is a setup that seems to indicate that the build-context is not used for resolving the path to the

setup_script

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a/
├─ b/
   ├─ .git/
   ├─ c/
      ├─ bentofile.yaml
      ├─ docker-setup.sh
      ├─ service.py

working directory :

/a

/a/b/c/bentofile.yaml

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# only highlighting the script bit
docker:
  setup_script: "c/docker-setup.sh"

test script resulting in an error:

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bentos.build_bentofile(
    bentofile="/a/b/c/bentofile.yaml",
    version="0.0.0",
    build_ctx="/a/b",
)

Using an absolute path for the

setup_script

appears to be working but is far from ideal as the service is not expected to be aware of the working directory where the build is happening.

Frost Ming

04/08/2025, 12:45 AM

why did you use a different build_ctx from bentofile.yaml anyway?

Frost Ming

04/08/2025, 12:45 AM

what is the

service

config in bentofile.yaml?

Frost Ming

04/08/2025, 12:47 AM

also didn’t reproduce:

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build_bentofile("a/b/c/bentofile.yaml", build_ctx="a/b")

bentofile.yaml:

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service: c.service:MyService
include:
  - "*.py"
  - "*.sh"
python:
  packages:
    - "nltk"
docker:
  setup_script: "./setup.sh"

Frost Ming

04/08/2025, 12:47 AM

the folder structure is exactly the same

Pierre Lecerf

04/08/2025, 7:44 AM

The reason why the build_ctx is different is that our projects typically have the following structure :

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my_project/
├─ .git/
├─ conf/
├─ my_module/
    ├─ project_logic.py
├─ utils/
    ├─ various_python_stuff.py
├─ bento_stuff/
    ├─ bentofile.yaml
    ├─ service.py

Basically the BentoML part is encapsulated in its own directory tree, and we wanted paths in the bentofile to not be relative. I'll try to produce a minimal working example for the context issue.

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