init commit

Dockerfile

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+FROM alpine:latest
+
+ENV USER=borg
+ENV UID=1000
+ENV GID=1000
+
+# Add Folders and Shell Scripts
+VOLUME ["/.ssh"]
+VOLUME ["/backup"]
+COPY motd.txt /etc/motd
+COPY entrypoint.sh /
+
+# Install packages
+RUN apk update ; apk upgrade
+RUN apk add --no-cache sudo bash tzdata openssh-server openrc \
+    borgbackup
+
+# Setup SSH-Server
+RUN sed -ie 's/#Port 22/Port 22/g' /etc/ssh/sshd_config
+RUN sed -ie 's/#PubkeyAuthentication yes/PubkeyAuthentication yes/g' /etc/ssh/sshd_config
+RUN sed -ie 's/#PasswordAuthentication yes/PasswordAuthentication no/g' /etc/ssh/sshd_config
+
+EXPOSE 22
+ENTRYPOINT [ "/entrypoint.sh" ]

entrypoint.sh

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+#!/bin/sh
+
+# Make authorized_keys file
+touch "/.ssh/authorized_keys"
+
+# Add User
+sh -c "echo '$USER ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers"
+addgroup -g "$GID" "$USER"
+adduser \
+    --disabled-password \
+    --gecos "" \
+    --home "/" \
+    --ingroup "$USER" \
+    --uid "$UID" \
+    "$USER"
+echo "$USER:*" | chpasswd
+
+# Add SSH Keys to authorized_keys
+for key in /sshkeys/*.pub; do
+  echo "Adding SSH-Key $key"
+  cat "$key" >> "/.ssh/authorized_keys"
+done
+echo "" >> "/.ssh/authorized_keys"
+
+# Change Ownership of SSH-Keys
+chown -R "$USER":"$USER" "/.ssh"
+chmod 700 "/.ssh"
+chmod 600 "/.ssh/authorized_keys"
+
+# Generate SSH-Keys
+ssh-keygen -A
+exec /usr/sbin/sshd -D -e "$@"

motd.txt

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+Welcome to BorgBackup!
+
+You can run all borg command here: borg
+to Check you Version run: borg -V
+