added sconfig.sh draft

sconfig.sh

@@ -0,0 +1,161 @@
+#!/usr/bin/env bash
+
+
+## name:       sconfig.sh
+## author:     david@socialnerds.org
+## version:    0.1
+##
+## decription: This is a script to help you configure
+##             various aspects of a linux server.
+##
+## features:   manage user accounts and their keys
+##             update operating system packages
+##             install admin tools
+##             harden sshd
+##             enable ufw
+##             setup docker
+##             setup nginx & acme.sh
+##             setup duplicity
+##             setup snmpd
+##
+## usage:      sconfig
+##
+## changelog:  2020-06-22 first draft of a working menu
+##             2020-06-21 started development of v0.1
+
+#TODO: merge content of prep_ubuntu_server.sh in here
+
+# **** start of script ****
+
+
+## functions
+
+### check for superuser privileges
+amiroot() { if [ $(whoami) != "root" ]; then return 1; fi }
+
+### header and footer output
+header() {
+  clear
+  local cols=$(tput cols); local char="="
+  local i=0; while [ $i != $((cols)) ]; do local chars="$chars$char"; i=$((i+1)); done
+  echo $chars; echo "Server configuration"; echo -e "$chars\n"
+}
+
+footer() {
+  local lines=$(tput lines)
+  local i=5; while [ $i != $((lines-$1)) ]; do echo ""; i=$((i+1)); done
+  local option=""; read -n 1 -p "Enter number to select an option: " option
+  if [[ $option =~ ^[1-9]+$ ]]; then return $option; fi
+}
+
+menu() {
+  header
+  local lines=$(tput lines)
+  for i in $(seq 1 $#); do
+    echo "$i) ${!i}"
+  done
+  footer $i
+}
+
+### ask for confirmation
+confirm() {
+  header
+  echo "Are you sure?"
+  echo "1) Yes"
+  echo "2) No"
+  footer 3
+  if [ $? -eq 1 ]; then return 0; else return 1; fi
+}
+
+### main menu
+mainmenu() {
+  header
+  echo "1) Install operating system updates"
+  echo
+  echo "3) Start a shell session"
+  echo "4) Restart server"
+  echo "5) Shutdown server"
+  echo "6) Logout"
+  echo
+  footer 7
+  case $? in
+    1)
+      header
+      echo 1; sleep 1
+      ;;
+    2)
+      header
+      echo 2; sleep 1
+      ;;
+    3)
+      header
+      echo "Executing $SHELL"; sleep 1; clear
+      $SHELL
+      ;;
+    4)
+      if confirm; then
+        header
+        echo "Rebooting server"; sleep 1
+        #sudo shutdown -r -t now
+      fi
+      ;;
+    5)
+      if confirm; then
+        header
+        echo "Shutting down server"; sleep 1
+        #sudo shutdown -h -t now
+      fi
+      ;;
+    6)
+      header
+      echo "Logging out"; sleep 1
+      exit 0
+      ;;
+    *)
+      header
+      echo "Unknown option"; sleep 1
+      ;;
+  esac
+}
+
+update() {
+  systems="ubuntu arch solus raspbian antergos"
+  issue="$(cat /etc/issue)"
+  for item in $systems; do
+    echo $issue | grep -i $item >> /dev/null
+    if [ $? -eq 0 ]; then
+      system=$item
+    fi
+  done
+
+  case $system in
+    ubuntu|debian|raspbian)
+      echo "Updating Ubuntu/Debian.."
+      sudo apt update && sudo apt dist-upgrade -y && sudo apt autoremove -y && sudo apt autoclean -y
+      ;;
+    arch|antergos)
+      echo "Updating Arch Linux.."
+      sudo pacman -Syu
+      ;;
+    ?)
+      echo "error: unknown system."
+      return 1
+      ;;
+  esac
+
+  if [ $? -ne 0 ]; then
+    echo "error: something went wrong."
+    return 1
+  fi
+}
+
+## start loop
+menu "Install system upgrades" \
+     "Reboot server" \
+     "Shutdown server" \
+     "Logout"
+
+#while true; do mainmenu; done
+
+exit 0
+# **** end of script ****