Merge pull request #108 from kraken-build/nr/update-to-ubuntu-24

Remove Ubuntu 20.04 and change default from 22.04 to 24.04

.github/workflows/docker.yml

@@ -51,13 +51,13 @@ jobs:
       matrix:
         include:
         - arch: amd64
-          base_image: ubuntu_20.04
+          base_image: ubuntu_24.04
           runs_on: ubuntu-latest
         - arch: amd64
           base_image: ubuntu_22.04
           runs_on: ubuntu-latest
         - arch: arm64
-          base_image: ubuntu_20.04
+          base_image: ubuntu_24.04
           runs_on: [buildjet-4vcpu-ubuntu-2204-arm]
         - arch: arm64
           base_image: ubuntu_22.04

.kraken.py

@@ -15,7 +15,7 @@
 image_prefix = "ghcr.io/kraken-build/kraken-base-image"
 
 base_image = "ubuntu"
-image_versions = ["20.04", "22.04"]
+image_versions = ["22.04", "24.04"]
 latest_version = image_versions[-1]
 
 default_base_image = f"{base_image}:{latest_version}"

README.md

@@ -15,8 +15,8 @@ is built from various Ubuntu starting images. We use semantic versioning in the
 
 | Starting Image | Kraken base image tags                                                                      | Notes |
 |----------------|---------------------------------------------------------------------------------------------|-------|
-| `ubuntu:20.04` | `develop-ubuntu_20.04`, `x.y.z-ubuntu_20.04`, `x.y-ubuntu_20.04`                            |       |
-| `ubuntu:22.04` | `develop`, `x.y.z`, `x.y`, `develop-ubuntu_22.04`, `x.y.z-ubuntu_22.04`, `x.y-ubuntu_22.04` |       |
+| `ubuntu:22.04` | `develop-ubuntu_22.04`, `x.y.z-ubuntu_22.04`, `x.y-ubuntu_22.04`                            |       |
+| `ubuntu:24.04` | `develop`, `x.y.z`, `x.y`, `develop-ubuntu_24.04`, `x.y.z-ubuntu_24.04`, `x.y-ubuntu_24.04` |       |
 
 ### Versioning rules