feat: add dockerfile

.drone.yml

@@ -0,0 +1,8 @@
+pipeline:
+        docker:
+                image: plugins/docker
+                repo: docker.jcg.re/sshd
+                registry: docker.jcg.re
+                secrets: [ docker_username, docker_password ]
+                tags: latest
+

Dockerfile

@@ -0,0 +1,10 @@
+FROM docker.jcg.re/base-alpine
+MAINTAINER Jan Christian Grünhage <jan.christian@gruenhage.xyz>
+
+RUN apk add --update \
+      openssh \
+      bash 
+
+ADD root /
+
+EXPOSE 22

README.md

@@ -1,3 +1,3 @@
-# docker-ssh
+# docker.jcg.re/sshd
 
-Basic openssh image
+Basic openssh based sshd image

root/etc/s6.d/sshd/run

@@ -0,0 +1,10 @@
+#!/bin/bash
+mkdir -p /root/.ssh
+if [[ -n ${SSH_KEY} ]]; then
+	echo ${SSH_KEY} > /root/.ssh/authorized_keys
+	chmod 700 /root/.ssh 
+	chmod 600 /root/.ssh/*
+fi
+sed -i -e "s/#PasswordAuthentication yes/PasswordAuthentication no/" /etc/ssh/sshd_config
+ssh-keygen -A
+/usr/sbin/sshd -D