Update Dockerfile

Dockerfile

@@ -65,8 +65,14 @@ RUN sed -i 's/Defaults !requiretty/Defaults requiretty/' /etc/sudoers && \
 #RUN echo "%administrator ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
 
 # Generate SSH host keys
-RUN ssh-keygen -A &&\
-    sudo ufw allow 2222/tcp
+#RUN ssh-keygen -A &&\
+#    sudo ufw allow 2222/tcp
+
+# Generate SSH keys
+RUN ssh-keygen -t rsa -b 2048 -f /etc/ssh/ssh_host_rsa_key -N "" && \
+    ssh-keygen -t ecdsa -b 256 -f /etc/ssh/ssh_host_ecdsa_key -N "" && \
+    ssh-keygen -t ed25519 -f /etc/ssh/ssh_host_ed25519_key -N ""
+
 
 # Secure SSH configuration
 RUN sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config && \