SSH key test now happening on every gateway reload

gateway/0.1.4/Dockerfile

@@ -84,21 +84,23 @@ RUN ( \
       echo "# Exit on errors or unset variables"; \
       echo ""; \
       echo ""; \
-      echo "# Create SSH keys, if necessary"; \
+      echo "# Create and cat SSH keys, if necessary"; \
       echo "#"; \
       echo "chown -R autossh:autossh /home/autossh"; \
       echo "[ -f /home/autossh/.ssh/id_rsa.pub ]|| \\"; \
+      echo "{"; \
       echo "  /sbin/setuser autossh ssh-keygen -b 4096 -t rsa -N \"\" -C dkey\${gID}-\$(date +%Y-%m-%d-%T) -f /home/autossh/.ssh/id_rsa"; \
+      echo "  cat /home/autossh/.ssh/id_rsa.pub"; \
+      echo "  echo"; \
+      echo "  echo"; \
+      echo "  echo 'Copy the public key above, then press Enter to test it'"; \
+      echo "  echo"; \
+      echo "  read ENTER_TO_CONTINUE"; \
+      echo "}"; \
       echo ""; \
       echo ""; \
-      echo "# Cat and test SSH keys"; \
+      echo "# Verify public key is loaded and populate known_hosts"; \
       echo "#"; \
-      echo "cat /home/autossh/.ssh/id_rsa.pub"; \
-      echo "echo"; \
-      echo "echo"; \
-      echo "echo 'Copy the public key above, then press Enter to test it'"; \
-      echo "echo"; \
-      echo "read ENTER_TO_CONTINUE"; \
       echo "/sbin/setuser autossh ssh -p \${PORT_AUTOSSH} autossh@\${IP_HUB} -o StrictHostKeyChecking=no 'hostname; exit'"; \
     )  \
       >> /app/ssh_config.sh; \