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fix: detect musl/glibc at runtime for correct Claude binary download

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Previously used cfg!(target_env = "musl") which checks compile-time,
causing musl-compiled sandbox-agent to always download musl binaries
even on glibc systems like Debian/E2B.

Now checks for /lib/ld-musl-*.so.1 at runtime to detect the actual
system libc and download the correct Claude binary variant.
This commit is contained in:
Nathan Flurry 2026-01-28 04:19:35 -08:00
parent 0bbe92b344
commit cbd36eeca8
12 changed files with 228 additions and 194 deletions
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34
examples/vercel/src/vercel-sandbox.test.ts
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@ -1,34 +0,0 @@
import { describe, it, expect } from "vitest";
import { buildHeaders } from "../shared/sandbox-agent-client.ts";
import { setupVercelSandboxAgent } from "./vercel-sandbox.ts";
const hasOidc = Boolean(process.env.VERCEL_OIDC_TOKEN);
const hasAccess = Boolean(
process.env.VERCEL_TOKEN &&
process.env.VERCEL_TEAM_ID &&
process.env.VERCEL_PROJECT_ID
);
const shouldRun = hasOidc || hasAccess;
const timeoutMs = Number.parseInt(process.env.SANDBOX_TEST_TIMEOUT_MS || "", 10) || 300_000;
const testFn = shouldRun ? it : it.skip;
describe("vercel sandbox example", () => {
testFn(
"starts sandbox-agent and responds to /v1/health",
async () => {
const { baseUrl, token, cleanup } = await setupVercelSandboxAgent();
try {
const response = await fetch(`${baseUrl}/v1/health`, {
headers: buildHeaders({ token }),
});
expect(response.ok).toBe(true);
const data = await response.json();
expect(data.status).toBe("ok");
} finally {
await cleanup();
}
},
timeoutMs
);
});

46
examples/vercel/src/vercel-sandbox.ts
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@ -1,46 +0,0 @@
import { Sandbox } from "@vercel/sandbox";
import { logInspectorUrl, runPrompt, waitForHealth } from "@sandbox-agent/example-shared";
if (!process.env.OPENAI_API_KEY && !process.env.ANTHROPIC_API_KEY) {
throw new Error("OPENAI_API_KEY or ANTHROPIC_API_KEY required");
}
const PORT = 3000;
const sandbox = await Sandbox.create({
runtime: process.env.VERCEL_RUNTIME || "node24",
ports: [PORT],
...(process.env.VERCEL_TOKEN && process.env.VERCEL_TEAM_ID && process.env.VERCEL_PROJECT_ID
? { token: process.env.VERCEL_TOKEN, teamId: process.env.VERCEL_TEAM_ID, projectId: process.env.VERCEL_PROJECT_ID }
: {}),
});
const run = (cmd: string) => sandbox.runCommand({ cmd: "bash", args: ["-lc", cmd], sudo: true });
console.log("Installing sandbox-agent...");
await run("curl -fsSL https://releases.rivet.dev/sandbox-agent/latest/install.sh | sh");
await run("sandbox-agent install-agent claude");
await run("sandbox-agent install-agent codex");
console.log("Starting server...");
await sandbox.runCommand({
cmd: "bash",
args: ["-lc", `sandbox-agent server --no-token --host 0.0.0.0 --port ${PORT}`],
sudo: true,
detached: true,
});
const baseUrl = `https://${sandbox.domain(PORT)}`;
await waitForHealth({ baseUrl });
logInspectorUrl({ baseUrl });
const cleanup = async () => {
console.log("Cleaning up...");
await sandbox.stop();
process.exit(0);
};
process.once("SIGINT", cleanup);
process.once("SIGTERM", cleanup);
await runPrompt({ baseUrl });
await cleanup();