E2B

E2B sandboxes are short-lived: when one is killed or times out, its files go with it. Mount an Archil disk in the sandbox and anything written there stays on the disk, where the next sandbox can mount it and your app can read it with the Archil SDK, without starting a sandbox. E2B sandboxes support FUSE, so the disk mounts as a regular directory.

Prerequisites

Export your Archil API key and region, and your E2B API key, then install both SDKs:

export ARCHIL_API_KEY=key-...
export ARCHIL_REGION=aws-us-east-1
export E2B_API_KEY=e2b_...
npm init -y && npm pkg set type=module
npm install disk e2b tsx

export ARCHIL_API_KEY=key-...
export ARCHIL_REGION=aws-us-east-1
export E2B_API_KEY=e2b_...
pip install archil e2b

Mount a disk

First, build an E2B template with the archil client installed and create a disk. You only do this once:

import * as archil from "disk";
import { Template } from "e2b";

const template = Template()
  .fromBaseImage()
  .runCmd("apt-get update && curl -fsSL https://archil.com/install | sh", { user: "root" });
await Template.build(template, "archil");

const { disk, token } = await archil.createDisk({ name: "e2b-data" });
console.log(`export ARCHIL_DISK_ID=${disk.id} ARCHIL_MOUNT_TOKEN=${token}`);

import archil
from e2b import Template

template = (
    Template()
    .from_base_image()
    .run_cmd("apt-get update && curl -fsSL https://archil.com/install | sh", user="root")
)
Template.build(template, "archil")

result = archil.create_disk(name="e2b-data")
print(f"export ARCHIL_DISK_ID={result.disk.id} ARCHIL_MOUNT_TOKEN={result.token}")

Run it with eval "$(npx tsx setup.ts)" (or eval "$(python setup.py)") to export the disk ID and the disk’s mount token, which grants access to this disk only. Now start a sandbox from the template, mount the disk at /mnt/archil, and write a file. archil needs root, so these commands run with user: "root", and the token is passed only to the mount command:

import { Sandbox } from "e2b";

const { ARCHIL_DISK_ID, ARCHIL_REGION, ARCHIL_MOUNT_TOKEN } = process.env;
const sandbox = await Sandbox.create("archil");
try {
  await sandbox.commands.run(
    `mkdir -p /mnt/archil && archil mount ${ARCHIL_DISK_ID} /mnt/archil --region ${ARCHIL_REGION}`,
    { user: "root", envs: { ARCHIL_MOUNT_TOKEN: ARCHIL_MOUNT_TOKEN! } },
  );
  try {
    const { stdout } = await sandbox.commands.run(
      `echo "Hello from ${sandbox.sandboxId}" >> /mnt/archil/hello.txt && cat /mnt/archil/hello.txt`,
      { user: "root" },
    );
    console.log(stdout);
  } finally {
    // Flush buffered writes and release the disk before the sandbox goes away
    await sandbox.commands.run("archil unmount /mnt/archil", { user: "root" });
  }
} finally {
  await sandbox.kill();
}

import os

from e2b import Sandbox

sandbox = Sandbox.create("archil")
try:
    sandbox.commands.run(
        f"mkdir -p /mnt/archil && archil mount {os.environ['ARCHIL_DISK_ID']} /mnt/archil --region {os.environ['ARCHIL_REGION']}",
        user="root",
        envs={"ARCHIL_MOUNT_TOKEN": os.environ["ARCHIL_MOUNT_TOKEN"]},
    )
    try:
        result = sandbox.commands.run(
            f'echo "Hello from {sandbox.sandbox_id}" >> /mnt/archil/hello.txt && cat /mnt/archil/hello.txt',
            user="root",
        )
        print(result.stdout)
    finally:
        # Flush buffered writes and release the disk before the sandbox goes away
        sandbox.commands.run("archil unmount /mnt/archil", user="root")
finally:
    sandbox.kill()

The archil client buffers recent writes, so the script unmounts before it kills the sandbox: archil unmount returns once every write has reached the disk. Run npx tsx mount.ts (or python mount.py) twice. Each run starts a new sandbox, and the second one finds the line the first one wrote:

Hello from ihd5w6hpg6f9zvh9cbf8w

Hello from ihd5w6hpg6f9zvh9cbf8w
Hello from iq88j4auz0rll06x5jgfh

A plain mount is exclusive: one sandbox holds the disk at a time. To mount it in several sandboxes at once, add --shared, and see Sharing disks.

Read it from anywhere

Both sandboxes are gone, and the file is still on the disk. Read it from your own machine or app with the SDK:

import * as archil from "disk";

const disk = await archil.getDisk(process.env.ARCHIL_DISK_ID!);
console.log(new TextDecoder().decode(await disk.getObject("hello.txt")));

import os

import archil

disk = archil.get_disk(os.environ["ARCHIL_DISK_ID"])
print(disk.get_object("hello.txt").decode())

If a sandbox is killed before it unmounts, see Troubleshooting mounts on other platforms.

Clean up

Delete the disk with the disk CLI, and the E2B template:

npx disk delete "$ARCHIL_DISK_ID"
npx @e2b/cli template delete archil -y

Next steps

archil CLI: every mount option, including --shared and --read-only.
Persistent sandboxes: Archil’s own sandboxes, with the disk mounted for you.

Agents

Analytics

Training

Apps & databases

Use Archil on other platforms

Prerequisites

Mount a disk

Read it from anywhere

Clean up

Next steps

​Prerequisites

​Mount a disk

​Read it from anywhere

​Clean up

​Next steps

Prerequisites

Mount a disk

Read it from anywhere

Clean up

Next steps