Initial commit

Dockerfile

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+FROM alpine
+
+# Install SSH & borg CLI
+RUN apk update
+RUN apk add openssh
+RUN apk add borgbackup
+
+# Create host keys to allow SSHD to start
+RUN ssh-keygen -A
+
+COPY ./entrypoint.sh /entrypoint.sh
+
+CMD ["/entrypoint.sh"]

README.md

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+# borgbackup
+
+This repository contains the `Dockerfile` and `docker-compose.yml` files for running borg in a docker container. 
+
+## Usage
+
+To use this container, run the supplied  `docker-compose.yml` and substitute the `SSH_PASSWORD` environment variable for one of your choice (This is not your borg passphrase that is used to encrypt your backup).
+
+### Create your first repository
+
+Create your first repository against the container using:
+
+```
+borg init -e repokey borg@<containter ip>:/opt/borg/<repository name>
+```
+
+If you have selected another port other than 22, you can change the port used by borg by running `export BORG_RSH="ssh -p <port>"` on the client running the backup command.
+
+From here you should follow the usage documentation provided on [borgbackup.readthedocs.io](https://borgbackup.readthedocs.io/en/stable/usage/general.html).

docker-compose.yml

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+services:
+  borg:
+    image: git.jrdn.dev/jordanwalster/borgbackup:latest
+    ports:
+      - 22:22
+    volumes:
+      - ./borg:/opt/borg
+    environment:
+      - SSH_PASSWORD=value

entrypoint.sh

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+#!/bin/sh
+
+# Create backup user
+echo "Creating borg backup user"
+adduser -D borg 
+
+# Set ssh password
+echo "Updating password..."
+echo "borg:$SSH_PASSWORD" | chpasswd
+
+# Change borg folder ownership to be owned by borg
+echo "Setting file ownership"
+chown -R borg:borg /opt/borg 
+
+# Set default login path to /opt/borg
+echo 'cd /opt/borg' >> /home/borg/.profile
+
+# Start SSHD
+/usr/sbin/sshd -D