added proxmox backup client docker image

pbsclient/dev/.gitignore

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+pbsclient/dev/compose.override.yml

pbsclient/dev/compose.yml

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+name: pbsclient-dev
+services:
+  app:
+    build:
+      dockerfile: docker/Dockerfile
+      context: ../
+    environment:
+      - APP_ENV=${APP_ENV}
+      - PBS_PASSWORD=${PBS_PASSWORD}
+      - PBS_REPOSITORY=${PBS_REPOSITORY}
+      - PBS_FINGERPRINT=${PBS_FINGERPRINT}

pbsclient/docker/Dockerfile

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+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

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+#!bin/bash
+
+proxmox-backup-client "$@"