9p: added files and steps for 9pfs binary compilation to hyperv image

This adds a Dockerfile that is used to create a container in which
the 9pfs binary is built. The binary is then extracted and installed
into the system for 9p file sharing.

Author: redbeam

9pfs/Dockerfile

@@ -0,0 +1,11 @@
+FROM registry.access.redhat.com/ubi9:9.5 AS builder
+
+RUN dnf install -y fuse-devel gcc git make
+
+RUN git clone https://github.com/ftrvxmtrx/9pfs /src/9pfs
+
+WORKDIR /src/9pfs
+
+RUN git checkout af2e820f10af4781df8e55c05a79864a005817eb
+
+RUN make

createdisk-library.sh

@@ -426,3 +426,18 @@ function copy_systemd_units() {
 
     ${SSH} core@${VM_IP} -- 'rm -rf /home/core/systemd-units /home/core/systemd-scripts'
 }
+
+function compile_and_extract_9pfs() {
+    ${SCP} -r 9pfs core@${VM_IP}:/home/core/
+    ${SSH} core@${VM_IP} 'sudo bash -e -x -s' <<EOF
+        cd 9pfs
+        podman build -t 9pfs-builder .
+        podman create --name extract-temp 9pfs-builder
+        podman cp extract-temp:/src/9pfs/9pfs ./9pfs
+        podman rm extract-temp
+        sudo cp 9pfs /usr/local/bin
+        cd ..
+        rm -rf 9pfs
+        podman rmi 9pfs-builder:latest registry.access.redhat.com/ubi9:9.5
+EOF
+}

createdisk.sh

@@ -203,6 +203,12 @@ ${SSH} core@${VM_IP} -- 'sudo sed -i "s/^preserve_hostname: false$/preserve_host
 # Cleanup cloud-init config
 ${SSH} core@${VM_IP} -- "sudo cloud-init clean --logs"
 
+if [ "${ARCH}" == "x86_64" ] && [ "${SNC_GENERATE_WINDOWS_BUNDLE}" != "0" ]; then
+    # compile 9pfs binary using UBI image and extract the binary
+    # so that it can be used to set up a 9p filesystem on Windows
+    compile_and_extract_9pfs
+fi
+
 # Shutdown the VM
 shutdown_vm ${VM_NAME}