Refresh gpg keys every few hours

src/freedombone

 RSS_READER_GNUSOCIAL_REPO="https://github.com/bashrc/ttrss-gnusocial"
 RSS_READER_GNUSOCIAL_COMMIT='8b92b8f5db7b0d12459c7bd86a50f48815efe642'
 
+# refresh gpg keys every few hours
+REFRESH_GPG_KEYS_HOURS=2
+
 function show_help {
 	echo ''
 	echo $"${PROJECT_NAME} -c [configuration file]"
 		if [[ $CONFIGURATION_FILE != "/root/${PROJECT_NAME}.cfg" ]]; then
 			cp $CONFIGURATION_FILE /root/${PROJECT_NAME}.cfg
 		fi
+		if grep -q "REFRESH_GPG_KEYS_HOURS" $CONFIGURATION_FILE; then
+			REFRESH_GPG_KEYS_HOURS=$(grep "REFRESH_GPG_KEYS_HOURS" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
+		fi
 		if grep -q "WEBMAIL_REPO" $CONFIGURATION_FILE; then
 			WEBMAIL_REPO=$(grep "WEBMAIL_REPO" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
 		fi
 	echo 'configure_gpg' >> $COMPLETION_FILE
 }
 
+function refresh_gpg_keys {
+	if ! grep -q "gpg --refresh-keys" /etc/crontab; then
+		echo "0            */$REFRESH_GPG_KEYS_HOURS *   *   *   $MY_USERNAME /usr/bin/gpg --refresh-keys > /dev/null" >> /etc/crontab
+		systemctl restart cron
+	fi
+}
+
 function configure_backup_key {
 	if grep -Fxq "configure_backup_key" $COMPLETION_FILE; then
 		return
 configure_imap
 #configure_imap_client_certs
 configure_gpg
+refresh_gpg_keys
 configure_backup_key
 install_monkeysphere
 encrypt_incoming_email

src/freedombone-sec

 		# The admin user is the identity certifier
 		fpr=$(gpg --with-colons --fingerprint $MY_GPG_PUBLIC_KEY_ID | grep fpr | head -n 1 | awk -F ':' '{print $10}')
 		monkeysphere-authentication add-identity-certifier $fpr
-
+        monkeysphere-host publish-key
 	else
 		sed -i 's|#AuthorizedKeysFile|AuthorizedKeysFile|g' /etc/ssh/sshd_config
 		sed -i 's|AuthorizedKeysFile.*|AuthorizedKeysFile %h/.ssh/authorized_keys|g' /etc/ssh/sshd_config