hosting the jump

.gitea/workflows/container.yml

@@ -50,3 +50,10 @@ jobs:
           context: spamassassin
           push: true
           tags: git.domainforge.de/public/spamassassin:latest
+
+      - name: Build and push JumpHost Container
+        uses: docker/build-push-action@v2
+        with:
+          context: jumphost
+          push: true
+          tags: git.domainforge.de/public/jumphost:latest

jumphost/Dockerfile

@@ -0,0 +1,19 @@
+FROM debian:bookworm-slim
+
+COPY start_sshd.sh /start_sshd.sh
+COPY supervisord.conf /etc/supervisord.conf
+
+RUN apt-get update && \
+    apt-get -y upgrade && \
+    apt-get -y --purge autoremove && \
+    apt-get -y install wget python3 python3-venv irssi neomutt ssh supervisor tmux && \
+    apt-get -y clean && \
+    touch /var/log/supervisord.log && \
+    mkdir /var/run/sshd && \
+    chmod a+x /start_sshd.sh
+
+EXPOSE 22/tcp
+
+VOLUME ["/etc/ssh", "/home", "/var/log"]
+
+CMD ["/usr/bin/supervisord", "-c", "/etc/supervisord.conf"]

jumphost/start_sshd.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+# make sure host keys exist
+ssh-keygen -A
+
+# start sshd
+/usr/sbin/sshd -e -D "$@"

jumphost/supervisord.conf

@@ -0,0 +1,9 @@
+[supervisord]
+nodaemon=true
+childlogdir=/var/log
+logfile=/var/log/supervisord.log
+
+[program:sshd]
+command=/entry/start_sshd.sh
+stdout_logfile=/var/log/sshd.log
+redirect_stderr=true