Add option to change the builder

Dockerfile

@@ -2,8 +2,8 @@
 # $ podman build --build-arg TYPE=distro -t ci-dnf-stack -f Dockerfile
 # $ podman run --net none -it ci-dnf-stack behave dnf
 #
-# Build for DNF4
-# $ podman build --build-arg DNF=dnf -t ci-dnf-stack -f Dockerfile
+# To build for DNF5 be sure to use the dnf5 suite
+# $ podman -s dnf5 build -t ci-dnf-stack -f Dockerfile
 #
 # Build for a specific Fedora version
 # $ podman build --build-arg BASE=fedora:38 -t ci-dnf-stack -f Dockerfile
@@ -13,7 +13,9 @@ FROM $BASE
 
 ENV LANG C.UTF-8
 ARG TYPE=nightly
-ARG DNF
+
+ARG BUILD_WITH
+ENV DNF=${BUILD_WITH:-dnf}
 
 # disable deltas and weak deps
 RUN set -x && \

container-test

@@ -420,6 +420,11 @@ class BehaveRunner(object):
         if self.command_line_args.base is not None:
             command += ['--build-arg', 'BASE={}'.format(self.command_line_args.base)]
 
+        if self.command_line_args.suite == "dnf5":
+            command += ['--build-arg', 'BUILD_WITH=dnf5']
+        else:
+            command += ['--build-arg', 'BUILD_WITH=dnf']
+
         command += ['-t', self.command_line_args.container]
         command += ['-f', self.command_line_args.docker_file, PROGPATH]
 

plans/dnf5/main.fmf

@@ -5,6 +5,7 @@ prepare+:
       how: shell
       script: |
         $TMT_PLANS_DATA/ci-dnf-stack/container-test \
+        --suite dnf5 \
         -c dnf5-testing-container build \
         --base $( echo "$@distro" | tr '-' ':') \
         --container-arg="--env=COPR=$PACKIT_COPR_PROJECT" \