サンドボックスにオブジェクトストレージバケットをマウントする

# Compatible with Debian-based distributions
FROM ubuntu:latest

# Critical: s3fs versions below 1.93 contain known mounting issues. Ensure version compatibility.
RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install -y s3fs

import { Sandbox } from 'novita-sandbox'

const TEMPLATE_ID = process.env.NOVITA_TEMPLATE_ID
const AWS_ACCESS_KEY_ID = process.env.AWS_ACCESS_KEY_ID
const AWS_SECRET_ACCESS_KEY = process.env.AWS_SECRET_ACCESS_KEY
const AWS_BUCKET_NAME = process.env.AWS_BUCKET_NAME
const AWS_REGION = process.env.AWS_REGION
if (!TEMPLATE_ID || !AWS_ACCESS_KEY_ID || !AWS_SECRET_ACCESS_KEY || !AWS_BUCKET_NAME || !AWS_REGION) {
    throw new Error('Required environment variables not configured: NOVITA_TEMPLATE_ID, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_BUCKET_NAME, AWS_REGION')
}

const MOUNT_DIRECTORY = "/mnt/s3-bucket"

const sandbox = await Sandbox.create(TEMPLATE_ID)

// Initialize mount point directory structure
await sandbox.files.makeDir(MOUNT_DIRECTORY)

// Configure s3fs credentials using standard credential file location
// s3fs-fuse reads AWS credentials from /root/.passwd-s3fs by default
await sandbox.files.write('/root/.passwd-s3fs', `${AWS_ACCESS_KEY_ID}:${AWS_SECRET_ACCESS_KEY}`)

// Enforce secure credential file permissions (owner read-only)
await sandbox.commands.run('sudo chmod 600 /root/.passwd-s3fs')

// Execute S3 bucket mount operation with optimized parameters
// Configuration parameters:
// - allow_other: Enable cross-user filesystem access
// - endpoint: Specify the AWS region endpoint for your bucket
// Reference: https://manpages.ubuntu.com/manpages/noble/en/man1/s3fs.1.html
const mountOptions = `allow_other,endpoint=${AWS_REGION}`
await sandbox.commands.run(`sudo s3fs ${AWS_BUCKET_NAME} ${MOUNT_DIRECTORY} -o ${mountOptions}`)

// Validate mount functionality with write operation
await sandbox.files.write(`${MOUNT_DIRECTORY}/test-file.txt`, 'test-file-content')

// Verify mount integrity through read operation
const content = await sandbox.files.read(`${MOUNT_DIRECTORY}/test-file.txt`)
console.log(content)

await sandbox.kill()

import os
from novita_sandbox.core import Sandbox

TEMPLATE_ID = os.environ.get("NOVITA_TEMPLATE_ID")
AWS_ACCESS_KEY_ID = os.environ.get("AWS_ACCESS_KEY_ID")
AWS_SECRET_ACCESS_KEY = os.environ.get("AWS_SECRET_ACCESS_KEY")
AWS_BUCKET_NAME = os.environ.get("AWS_BUCKET_NAME")
AWS_REGION = os.environ.get("AWS_REGION")
if not TEMPLATE_ID or not AWS_ACCESS_KEY_ID or not AWS_SECRET_ACCESS_KEY or not AWS_BUCKET_NAME or not AWS_REGION:
    raise ValueError("Required environment variables not configured: NOVITA_TEMPLATE_ID, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_BUCKET_NAME, AWS_REGION")

MOUNT_DIRECTORY = "/mnt/s3-bucket"

sandbox = Sandbox.create(TEMPLATE_ID)

# Initialize mount point directory structure
sandbox.files.make_dir(MOUNT_DIRECTORY)

# Configure s3fs credentials using standard credential file location
# s3fs-fuse reads AWS credentials from /root/.passwd-s3fs by default
# Custom credential paths require explicit specification via -o passwd_file parameter
sandbox.files.write("/root/.passwd-s3fs", f"{AWS_ACCESS_KEY_ID}:{AWS_SECRET_ACCESS_KEY}")

# Enforce secure credential file permissions (owner read-only)
sandbox.commands.run("sudo chmod 600 /root/.passwd-s3fs")

# Execute S3 bucket mount operation with optimized parameters
# Configuration parameters:
# - allow_other: Enable cross-user filesystem access
# - endpoint: Specify the AWS region endpoint for your bucket
# Reference: https://manpages.ubuntu.com/manpages/noble/en/man1/s3fs.1.html
mount_options = f"allow_other,endpoint={AWS_REGION}"
sandbox.commands.run(f"sudo s3fs {AWS_BUCKET_NAME} {MOUNT_DIRECTORY} -o {mount_options}")

# Validate mount functionality with write operation
write_result = sandbox.files.write(f"{MOUNT_DIRECTORY}/test-file.txt", "test-file-content")

# Verify mount integrity through read operation
content = sandbox.files.read(f"{MOUNT_DIRECTORY}/test-file.txt")
print("File content:", content)

sandbox.kill()