build: (opensuse) Revert build remove opensuse build infra

Added missing deps
Removed Thumbleweed support
Changed python2 to python3
Added Dockerfile for suse-leap build

Type: make
Change-Id: Ie73d2382a73ebc9d4475ace1a8f818fe38cf40c0
Signed-off-by: Laszlo Kiraly <laszlo.kiraly@est.tech>

extras/rpm/opensuse/Dockerfile

@@ -0,0 +1,15 @@
+# Run from top of vpp repo with command:
+# docker build -f extras/rpm/opensuse/Dockerfile .
+
+ARG SUSE_VERSION=15.3
+
+FROM opensuse/leap:${SUSE_VERSION} as vppbuild
+COPY . /vpp
+WORKDIR /vpp
+RUN zypper install -y make sudo
+COPY . .
+RUN UNATTENDED=y make install-dep
+RUN ln -s /usr/bin/cmake /usr/bin/cmake3
+RUN UNATTENDED=y make install-ext-deps
+RUN make pkg-rpm
+CMD ["/bin/bash"]

extras/rpm/opensuse/README.md

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+# Build RPM for openSUSE
+
+## Introduction
+
+This is to describe how to compile and create installable RPM packages for openSUSE leap.
+In general you should visit [Pulling, Building,
+Running, Hacking, Pushing](https://wiki.fd.io/view/VPP/Pulling,_Building,_Run
+ning,_Hacking_and_Pushing_VPP_Code) which provides full description for other type of system (Ubuntu,Centos or Redhat).
+
+## Get the VPP Sources
+
+To get the VPP sources that are used to create the build, run the following commands:
+
+```bash
+# git clone https://gerrit.fd.io/r/vpp
+# cd vpp
+```
+
+There are two ways to continue:
+
+* Build by docker
+* Build on your own openSUSE system
+
+## Build by Docker
+
+Run the following docker command:
+
+```bash
+docker build -f extras/rpm/opensuse/Dockerfile .
+```
+
+The packages now can be copied from the docker image and can be installed on openSUSE.
+An example how to extend the Dockerfile to install vpp:
+
+'''dockerfile
+FROM opensuse/leap:${SUSE_VERSION} as vppinstall
+COPY --from=vppbuild /vpp/build-root/*rpm /rpms/
+RUN VPP_INSTALL_SKIP_SYSCTL=false zypper install --allow-unsigned-rpm -y --no-recommends /rpms/*.rpm;\
+...
+'''
+
+## Build on openSUSE
+
+### Build VPP Dependencies
+
+Before building a VPP image, make sure there are no FD.io VPP or DPDK packages installed, by entering the following commands:
+
+```bash
+# rpm -ql vpp
+package vpp is not installed
+# rpm -ql dpdk
+package dpdk is not installed
+
+```
+
+Run the following make command to install the dependencies for FD.io VPP.
+
+```bash
+make install-dep
+```
+
+Run the following make command to install the external dependencies for FD.io VPP.
+
+```bash
+ln -s /usr/bin/cmake /usr/bin/cmake3 # some thirdparty checking for cmake3 binary
+make install-ext-dep
+```
+
+### Build RPM Packages
+
+Create packages for openSUSE by running:
+
+```bash
+make pkg-rpm
+```
+
+Once the packages are built they can be found in the build-root directory.
+
+```bash
+# ls *.rpm
+```
+
+If the packages are built correctly, then this should be the corresponding output:
+
+```bash
+build-root/libvpp0-21.10-rc0~200_gb89ae9670.x86_64.rpm	    build-root/vpp-api-python-21.10-rc0~200_gb89ae9670.x86_64.rpm
+build-root/vpp-21.10-rc0~200_gb89ae9670.x86_64.rpm	    build-root/vpp-devel-21.10-rc0~200_gb89ae9670.x86_64.rpm
+build-root/vpp-api-lua-21.10-rc0~200_gb89ae9670.x86_64.rpm  build-root/vpp-plugins-21.10-rc0~200_gb89ae9670.x86_64.rpm
+```