vhaudiquet f9250accc0 fix(rootfs): confine layer names to the cache directory
A layer name lands verbatim in file paths: layers/<name> for the
pointer, <entry>.<key>.tar.gz for keyed entries. --layer ../x
escaped the cache directory on write and read alike. Names are now
restricted to [A-Za-z0-9._-] without a leading dot, enforced at
every surface that accepts one (write, read, extract, and the
prepare_provisioned layer key).
2026-10-29 23:58:07 +01:00
2026-10-29 21:47:14 +01:00

écrou logo

ecrou

a small microVM runtime based on libkrun

Try ecrou in the terminal

Installation

ecrou is available as a strictly confined snap:

sudo snap install ecrou
sudo snap connect ecrou:kvm

Usage

$ ecrou run -it ubuntu
root@ecrou-vm-m2glhl:/# 

Embed ecrou into your project

ecrou is both a library and a tiny CLI frontend around it. The library is embeddable into any project, allowing to use microVMs easily.

Rust

ecrou is a Rust library, which can just be called:

use ecrou::vm::RunOptions;
use ecrou::NoProgress;

fn main() -> ecrou::Result<std::process::ExitCode> {
    let code = ecrou::vm::run(
        &RunOptions {
            image: "ubuntu:resolute".into(),
            command: vec!["uname".into(), "-a".into()],
            ..RunOptions::default()
        },
        &NoProgress,
    )?;
    Ok(std::process::ExitCode::from(code.clamp(0, 255) as u8))
}
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