added proxmox backup client docker image

pbsclient/docker/Dockerfile

@@ -0,0 +1,11 @@
+FROM debian:bookworm-slim
+
+RUN apt-get update
+RUN apt install -y wget 
+RUN wget https://enterprise.proxmox.com/debian/proxmox-release-bookworm.gpg -O /etc/apt/trusted.gpg.d/proxmox-release-bookworm.gpg
+RUN echo "deb http://download.proxmox.com/debian/pbs-client bookworm main" >> /etc/apt/sources.list.d/pbs.list;
+RUN apt update 
+RUN apt install -y proxmox-backup-client
+COPY ./docker/scripts/entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+ENTRYPOINT [ "/entrypoint.sh" ]

pbsclient/docker/scripts/entrypoint.sh

@@ -0,0 +1,3 @@
+#!bin/bash
+
+proxmox-backup-client "$@"