Merge pull request #3 from reubeno/add-azl3

enable rpm build for Azure Linux 3.0

Author: tofay

Dockerfile

@@ -5,6 +5,13 @@ RUN --mount=target=/src,rw make rpm && \
     mkdir /out && \
     cp -r /src/rpmbuild/RPMS/x86_64/*.rpm /out/
 
+FROM mcr.microsoft.com/azurelinux/base/core:3.0 as azl3
+RUN tdnf install -y rpm-build make python3-devel
+WORKDIR /src
+RUN --mount=target=/src,rw make rpm && \
+    mkdir /out && \
+    cp -r /src/rpmbuild/RPMS/x86_64/*.rpm /out/
+
 FROM registry.access.redhat.com/ubi9:latest as el9
 RUN yum install -y rpm-build make python3-devel
 WORKDIR /src
@@ -21,5 +28,6 @@ RUN --mount=target=/src,rw make rpm && \
 
 FROM scratch
 COPY --from=cm2 /out/* /
+COPY --from=azl3 /out/* /
 COPY --from=el8 /out/* /
 COPY --from=el9 /out/* /