fix: ssh server

quests/Dockerfile

@@ -26,8 +26,9 @@ ENV USERNAME=commander
 
 RUN adduser --disabled-password --gecos '' --shell /bin/zsh ${USERNAME}
 COPY ./ssh_pubkey /home/${USERNAME}/.ssh/authorized_keys
-RUN chmod 600 /home/${USERNAME}/.ssh/authorized_keys
-RUN chmod 700 /home/${USERNAME}/.ssh
+RUN chmod 600 /home/${USERNAME}/.ssh/authorized_keys \
+  && chmod 700 /home/${USERNAME}/.ssh \
+  && chown -R ${USERNAME}:${USERNAME} /home/${USERNAME}/.ssh
 
 RUN service ssh start