Refactor Dockerfile to use less layer

Consolidate RUN commands for efficiency and cleanup.

Signed-off-by: ningmingxiao <ning.mingxiao@zte.com.cn>

Author: ningmingxiao

Dockerfile

@@ -4,41 +4,35 @@ FROM quay.io/fedora/fedora:43
 WORKDIR /root/containerbuild
 # This variable is enabled by Konflux to build the container image hermatically.
 ARG NO_NETWORK=0
-
 # Keep this Dockerfile idempotent for local development rebuild use cases.
 USER root
-RUN rm -rfv /usr/lib/coreos-assembler /usr/bin/coreos-assembler
 
 COPY ./src/print-dependencies.sh ./src/deps*.txt ./src/vmdeps*.txt ./src/build-deps.txt /root/containerbuild/src/
 COPY ./build.sh /root/containerbuild/
-RUN ./build.sh configure_yum_repos
-RUN ./build.sh install_rpms
-RUN ./build.sh install_ocp_tools
-RUN ./build.sh trust_redhat_gpg_keys
+RUN rm -rfv /usr/lib/coreos-assembler /usr/bin/coreos-assembler \
+    && ./build.sh configure_yum_repos \
+    && ./build.sh install_rpms \
+    && ./build.sh install_ocp_tools \
+    && ./build.sh trust_redhat_gpg_keys
 
 COPY ./ /root/containerbuild/
-RUN ./build.sh write_archive_info
-RUN ./build.sh make_and_makeinstall
-RUN ./build.sh configure_user
-RUN ./build.sh patch_osbuild
-
-# clean up scripts (it will get cached in layers, but oh well)
-WORKDIR /srv/
-RUN chown builder: /srv
-RUN rm -rf /root/containerbuild
-
-# allow writing to /etc/passwd from arbitrary UID
-# https://docs.openshift.com/container-platform/4.8/openshift_images/create-images.html
-RUN chmod g=u /etc/passwd
-
-# also allow adding certificates
-RUN chmod -R g=u /etc/pki/ca-trust
-
-# This allows Prow jobs for other projects to use our cosa image as their
-# buildroot image (so clonerefs can copy the repo into `/go`). For cosa itself,
-# this same hack is inlined in the YAML (see openshift/release link above).
-RUN mkdir -p /go && chmod 777 /go
-
-# run as `builder` user
+RUN ./build.sh write_archive_info \
+    && ./build.sh make_and_makeinstall \
+    && ./build.sh configure_user \
+    && ./build.sh patch_osbuild \
+    # clean up scripts (it will get cached in layers, but oh well)
+    && chown builder: /srv \
+    && rm -rf /root/containerbuild \
+    # allow writing to /etc/passwd from arbitrary UID
+    # https://docs.openshift.com/container-platform/4.8/openshift_images/create-images.html
+    && chmod g=u /etc/passwd \
+    # also allow adding certificates
+    && chmod -R g=u /etc/pki/ca-trust \
+    # This allows Prow jobs for other projects to use our cosa image as their
+    # buildroot image (so clonerefs can copy the repo into `/go`). For cosa itself,
+    # this same hack is inlined in the YAML (see openshift/release link above).
+    && mkdir -p /go && chmod 777 /go
+
+# run as `builder` user	
 USER builder
 ENTRYPOINT ["/usr/bin/dumb-init", "/usr/bin/coreos-assembler"]