# What is CirrOS? The CirrOS project provides linux disk and kernel/initramfs images. The images are well suited for testing as they are small and boot quickly. Please note that: - **Images are provided for test only**. They should not be used in production. - **Images have well known login information**. Users can log in with 'cirros:letsgocubs' locally or remotely and have passwordless sudo access to root. CirrOS images have useful tools and function for debugging or developing cloud infrastructure. > [github.com/cirros-dev/cirros](https://github.com/cirros-dev/cirros#readme) %%LOGO%%