Update Dockerfile

Dockerfile

@@ -2,21 +2,21 @@ FROM redhat/ubi8:latest
 
 # Clean up and update yum, then install required packages
 RUN yum clean all && yum -y update -v && yum -y upgrade -v && \
-    yum -y install wget rpm-build rpm-devel rpmlint make coreutils diffutils patch rpmdevtools make python -v
+    yum -y install wget rpm-build rpmlint make coreutils diffutils patch python3 -v
 
-# Set up the build directories
-RUN mkdir -p /root/rpmbuild/{RPMS/noarch,SOURCES,SPECS,SRPMS}
+# Create the rpm build directories
+RUN mkdir -p /root/rpmbuild/RPMS/noarch && \
+    mkdir -p /root/rpmbuild/SOURCES && \
+    mkdir -p /root/rpmbuild/SPECS && \
+    mkdir -p /root/rpmbuild/SRPMS
 
-# Copy source and spec files
+# Copy source files and spec file
 COPY *.tar.gz /root/rpmbuild/SOURCES/
 COPY *.patch /root/rpmbuild/SOURCES/
 ADD tomcat.spec /root/rpmbuild/SPECS/
 
-# Define the volume for the built RPMs
-VOLUME /root/rpmbuild/RPMS/noarch
-
-# Set the working directory
+# Set working directory
 WORKDIR /root/rpmbuild/RPMS/noarch
 
-# Default command to build the RPM
-CMD ["rpmbuild", "--target", "noarch", "-v", "-bb", "/root/rpmbuild/SPECS/tomcat.spec"]
+# Command to build RPM
+CMD ["rpmbuild", "--target", "noarch", "-v", "-bb", "tomcat.spec"]