Deprecated ubuntu-20.04 as a base image and target because it no longer supports the newest Ruby's C backend

Author: moritzheiber

.github/workflows/build-push.yaml

@@ -13,7 +13,7 @@ on:
 
 jobs:
   gather-versions:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     outputs:
       versions: ${{ steps.ruby-versions.outputs.versions }}
       metadata: ${{ steps.ruby-versions.outputs.metadata }}
@@ -22,22 +22,22 @@ jobs:
         name: Fetch latest Ruby versions
         id: ruby-versions
   build-test-push:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     needs: ["gather-versions"]
     strategy:
       matrix:
         version: ${{ fromJSON(needs.gather-versions.outputs.versions) }}
-        image: ["slim", "ubuntu-20.04", "ubuntu-22.04"]
+        image: ["slim", "ubuntu-22.04", "ubuntu-24.04"]
         include: ${{ fromJSON(needs.gather-versions.outputs.metadata) }}
     steps:
       - name: Set image_name
         id: context
         run: |
           if [[ "${{ matrix.image }}" == "slim" ]] ; then
             echo "image_name=ruby:${{ matrix.version }}-slim" >> ${GITHUB_OUTPUT}
-          elif [[ "${{ matrix.image }}" == "ubuntu-20.04" ]] ; then
-            echo "image_name=ubuntu:20.04" >> ${GITHUB_OUTPUT}
           elif [[ "${{ matrix.image }}" == "ubuntu-22.04" ]] ; then
+            echo "image_name=ubuntu:20.04" >> ${GITHUB_OUTPUT}
+          elif [[ "${{ matrix.image }}" == "ubuntu-24.04" ]] ; then
             echo "image_name=ubuntu:22.04" >> ${GITHUB_OUTPUT}
           fi
 

Dockerfile

@@ -1,4 +1,4 @@
-ARG RUBY_VERSION="3.3.0"
+ARG RUBY_VERSION="3.3.1"
 ARG IMAGE_NAME="ruby:${RUBY_VERSION}-slim"
 # hadolint ignore=DL3006
 FROM ${IMAGE_NAME}
@@ -7,7 +7,7 @@ LABEL maintainer="Moritz Heiber <hello@heiber.im>"
 LABEL org.opencontainers.image.source=https://github.com/moritzheiber/ruby-jemalloc-docker
 
 ARG RUBY_VERSION
-ARG RUBY_CHECKSUM="96518814d9832bece92a85415a819d4893b307db5921ae1f0f751a9a89a56b7d"
+ARG RUBY_CHECKSUM="8dc2af2802cc700cd182d5430726388ccf885b3f0a14fcd6a0f21ff249c9aa99"
 ARG ADDITIONAL_FLAGS
 
 ENV DEBIAN_FRONTEND="noninteractive" \

README.md

@@ -2,13 +2,13 @@
 
 A Docker image for Ruby, built with [`jemalloc`](https://scalingo.com/blog/improve-ruby-application-memory-jemalloc).
 
-The images are based on [the offical Ruby "slim"](https://hub.docker.com/_/ruby) and [official Ubuntu "20.04"/"22.04" (LTS) images](https://hub.docker.com/_/ubuntu) on Docker Hub.
+The images are based on [the offical Ruby "slim"](https://hub.docker.com/_/ruby) and [official Ubuntu "22.04"/"24.04" (LTS) images](https://hub.docker.com/_/ubuntu) on Docker Hub.
 
 The following images are used:
 
 - `ruby:${RUBY_VERSION}-slim`
-- `ubuntu:20.04`
 - `ubuntu:22.04`
+- `ubuntu:24.04`
 
 The following platforms are built:
 
@@ -31,10 +31,15 @@ Container images are available but no longer maintained for the following versio
 - `3.0.6`
 - `3.1.2`
 - `3.1.3`
+- `3.1.4`
 - `3.2.0`
 - `3.2.1`
 - `3.2.2`
+- `3.2.3`
+
+and the following platforms:
 
+- `ubuntu-20.04`
 
 ## Support for newer Ruby versions
 
@@ -69,7 +74,7 @@ $ docker run ghcr.io/moritzheiber/ruby-version-checker
 ```
 
 
-If you wish to pass additional compile-time options you can use the build argument `ADDITIONAL_FLAGS` (e.g. to enable YJIT support for Ruby `3.2.x`):
+If you wish to pass additional compile-time options you can use the build argument `ADDITIONAL_FLAGS` (e.g. to enable YJIT support for Ruby >= `3.2.x`):
 
 ```console
 $ docker build \
@@ -87,7 +92,7 @@ $ docker build \
   --build-arg IMAGE_NAME=ubuntu:22.04 \
   -t ruby-jemalloc:3.1.4-ubuntu-22.04 .
 ```
-_Note: Ruby `3.3.0-slim` is the default when building the Docker image without any build arguments._
+_Note: Ruby `3.3.1-slim` is the default when building the Docker image without any build arguments._
 
 ## Tests
 
@@ -100,7 +105,7 @@ dgoss run -ti ruby-jemalloc
 You can specify the Ruby version to test for by passing `RUBY_VERSION` as a variable:
 
 ```console
-dgoss run -ti -e RUBY_VERSION=3.3.0 ruby-jemalloc
+dgoss run -ti -e RUBY_VERSION=3.3.1 ruby-jemalloc
 ```
 
-_Note: `3.3.0` is the default. And don't forget to also pass the correct `RUBY_CHECKSUM`._
+_Note: `3.3.1` is the default. And don't forget to also pass the correct `RUBY_CHECKSUM`._

templates/README.template

@@ -2,13 +2,13 @@
 
 A Docker image for Ruby, built with [`jemalloc`](https://scalingo.com/blog/improve-ruby-application-memory-jemalloc).
 
-The images are based on [the official Ruby "slim"](https://hub.docker.com/_/ruby) and [official Ubuntu "20.04"/"22.04" (LTS) images](https://hub.docker.com/_/ubuntu) on Docker Hub.
+The images are based on [the official Ruby "slim"](https://hub.docker.com/_/ruby) and [official Ubuntu "22.04"/"24.04" (LTS) images](https://hub.docker.com/_/ubuntu) on Docker Hub.
 
 The following images are used:
 
 - `ruby:${RUBY_VERSION}-slim`
-- `ubuntu:20.04`
 - `ubuntu:22.04`
+- `ubuntu:24.04`
 
 The following platforms are built:
 
@@ -30,6 +30,10 @@ Container images are available but no longer maintained for the following versio
 - `{% item %}`
 {% end %}
 
+and following platforms:
+
+- `ubuntu-20.04`
+
 ## Support for newer Ruby versions
 
 GitHub Actions is set up to gather the latest available Ruby versions with the [ruby-versions-action](https://github.com/moritzheiber/ruby-versions-action) and feed it to the build process. The plan is to run the build pipeline and update the REAMDE from a template regularly (e.g. weekly) in the future. For now this has to be done manually, so feel free to open a new issue once a new release needs to be supported (it usually takes a few minutes to trigger the pipeline and update the README).