Unable to build from ubuntu 21.04 since 23 july about docker-brew-ubuntu-core

[tianon]

Hirsute is EOL; see #229.

[vinicius73]

How we can fix our builds @tianon ?
Any update do not work anymore.

docker run -it --rm ubuntu:21.10 apt update -y

Ign:1 http://archive.ubuntu.com/ubuntu impish InRelease
Ign:2 http://security.ubuntu.com/ubuntu impish-security InRelease
Err:3 http://security.ubuntu.com/ubuntu impish-security Release
  404  Not Found [IP: 91.189.91.39 80]
Ign:4 http://archive.ubuntu.com/ubuntu impish-updates InRelease
Ign:5 http://archive.ubuntu.com/ubuntu impish-backports InRelease
Err:6 http://archive.ubuntu.com/ubuntu impish Release
  404  Not Found [IP: 185.125.190.36 80]
Err:7 http://archive.ubuntu.com/ubuntu impish-updates Release
  404  Not Found [IP: 185.125.190.36 80]
Err:8 http://archive.ubuntu.com/ubuntu impish-backports Release
  404  Not Found [IP: 185.125.190.36 80]
Reading package lists... Done
E: The repository 'http://security.ubuntu.com/ubuntu impish-security Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://archive.ubuntu.com/ubuntu impish Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://archive.ubuntu.com/ubuntu impish-updates Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://archive.ubuntu.com/ubuntu impish-backports Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

[yosifkit]

21.10 is also end of life: https://ubuntu.com/about/release-cycle. Use an LTS release to get releases with a longer provided update period (e.g. 22.04 or 20.04).

[tianon]

This repository is no longer canonical; see #248 for more details.