ci: Add Fedora

Add an action to setup latest Fedora and use it for the initial setup.
Add hack on /usr/lib/modules so /usr/lib/modules/*/build can still be
used in the rest of the workflow as the KDIR.

Signed-off-by: Lucas De Marchi <lucas.de.marchi@gmail.com>
Reviewed-by: Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Link: https://github.com/kmod-project/kmod/pull/44

.github/actions/setup-fedora/action.yml

@@ -0,0 +1,27 @@
+name: 'setup Fedora'
+description: 'Setup a Fedora container for running CI'
+runs:
+  using: 'composite'
+  steps:
+    - name: Install dependencies
+      shell: bash
+      run: |
+        dnf update -y
+        dnf install -y \
+          autoconf \
+          automake \
+          make \
+          gcc \
+          kernel-devel \
+          zlib-devel \
+          xz-devel \
+          libzstd-devel \
+          openssl-devel \
+          gtk-doc \
+          libtool \
+          scdoc
+        # CI builds with KDIR pointing to /usr/lib/modules/*/build
+        # so just a foo/build pointing to the right place, assuming
+        # just one kernel installed
+        mkdir -p /usr/lib/modules/foo/
+        ln -s /usr/src/kernels/* /usr/lib/modules/foo/build

.github/workflows/main.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        container: ['ubuntu:22.04', 'ubuntu:24.04', 'archlinux:base-devel']
+        container: ['ubuntu:22.04', 'ubuntu:24.04', 'archlinux:base-devel', 'fedora:latest']
 
     container:
       image: ${{ matrix.container }}
@@ -23,6 +23,8 @@ jobs:
         if: ${{ startsWith(matrix.container, 'ubuntu') }}
       - uses: ./.github/actions/setup-archlinux
         if: ${{ startsWith(matrix.container, 'archlinux') }}
+      - uses: ./.github/actions/setup-fedora
+        if: ${{ startsWith(matrix.container, 'fedora') }}
 
       - name: configure
         run: |