Initial work to add unattended option to soup

salt/common/tools/sbin/soup

@@ -105,9 +105,11 @@ add_common() {
 
 airgap_mounted() {
   # Let's see if the ISO is already mounted. 
-  if [ -f /tmp/soagupdate/SecurityOnion/VERSION ]; then
+  if [[ -f /tmp/soagupdate/SecurityOnion/VERSION ]]; then
     echo "The ISO is already mounted"
   else
+    if [[ -z $ISOLOC ]]; then
+      echo "This is airgap. Ask for a location."
       echo ""
       cat << EOF
 In order for soup to proceed, the path to the downloaded Security Onion ISO file, or the path to the CD-ROM or equivalent device containing the ISO media must be provided. 
@@ -116,6 +118,7 @@ Or, if you have burned the new ISO onto an optical disk then the path might look
 
 EOF
       read -rp 'Enter the path to the new Security Onion ISO content: ' ISOLOC
+    fi
     if [[ -f $ISOLOC ]]; then
       # Mounting the ISO image
       mkdir -p /tmp/soagupdate
@@ -124,23 +127,27 @@ EOF
       if [ ! -f /tmp/soagupdate/SecurityOnion/VERSION ]; then
         echo "Something went wrong trying to mount the ISO."
         echo "Ensure you verify the ISO that you downloaded."
-        exit 0
+        exit 1
       else
         echo "ISO has been mounted!"
       fi  
     elif [[ -f $ISOLOC/SecurityOnion/VERSION ]]; then
       ln -s $ISOLOC /tmp/soagupdate
       echo "Found the update content"
-    else 
+    elif [[ -b $ISOLOC ]]; then
       mkdir -p /tmp/soagupdate
       mount $ISOLOC /tmp/soagupdate
       if [ ! -f /tmp/soagupdate/SecurityOnion/VERSION ]; then
         echo "Something went wrong trying to mount the device."
         echo "Ensure you verify the ISO that you downloaded."
-        exit 0
+        exit 1
       else
         echo "Device has been mounted!"
       fi
+    else
+      echo "Could not find Security Onion ISO content at ${ISOLOC}" 
+      echo "Ensure the path you entered is correct, and that you verify the ISO that you downloaded."
+      exit 1
     fi
   fi
 }
@@ -774,39 +781,22 @@ verify_latest_update_script() {
 }
 
 main() {
-  set -e
-  set +e
   trap 'check_err $?' EXIT
   
-  echo "### Preparing soup at $(date) ###"
-  while getopts ":b" opt; do
-    case "$opt" in
-      b ) # process option b
-        shift
-        BATCHSIZE=$1
-        if ! [[ "$BATCHSIZE" =~ ^[0-9]+$ ]]; then
-          echo "Batch size must be a number greater than 0."
-          exit 1
+  echo "Checking to see if this is an airgap install."
+  echo ""
+  check_airgap
+  if [[ $is_airgap -eq 0 && $UNATTENDED == true && -z $ISOLOC ]]; then
+    echo "Missing file argument for unattended airgap upgrade."
   fi
-      ;;
-      \? ) 
-        echo "Usage: cmd [-b]"
-      ;;
-    esac
-  done
-
   echo "Checking to see if this is a manager."
   echo ""
   require_manager
   set_minionid
-  echo "Checking to see if this is an airgap install."
-  echo ""
-  check_airgap
   echo "Found that Security Onion $INSTALLEDVERSION is currently installed."
   echo ""
   if [[ $is_airgap -eq 0 ]]; then
     # Let's mount the ISO since this is airgap
-    echo "This is airgap. Ask for a location."
     airgap_mounted
   else
     echo "Cloning Security Onion github repo into $UPDATE_DIR."
@@ -1029,7 +1019,40 @@ EOF
   echo "### soup has been served at $(date) ###"
 }
 
-cat << EOF
+while getopts ":b:f:y" opt; do
+  case ${opt} in
+    b )
+      BATCHSIZE="$OPTARG"
+      if ! [[ "$BATCHSIZE" =~ ^[0-9]+$ ]]; then
+        echo "Batch size must be a number greater than 0."
+        exit 1
+      fi
+    ;;
+    y )
+      if [[ ! -f /opt/so/state/yeselastic.txt ]]; then
+        echo "Cannot run soup in unattended mode. You must run soup manually to accept the Elastic License."
+        exit 1
+      else
+        UNATTENDED=true 
+      fi
+    ;;
+    f )
+      ISOLOC="$OPTARG"
+    ;;
+    \? ) 
+      echo "Usage: soup [-b] [-y] [-f <iso location>]"
+      exit 1
+    ;;
+    : )
+      echo "Invalid option: $OPTARG requires an argument"
+      exit 1
+    ;;
+  esac
+done
+shift $((OPTIND - 1))
+
+if [[ -z $UNATTENDED ]]; then
+  cat << EOF
 
 SOUP - Security Onion UPdater
 
@@ -1041,7 +1064,9 @@ Press Enter to continue or Ctrl-C to cancel.
 
 EOF
 
-read -r input
+  read -r input
+fi
 
+echo "### Preparing soup at $(date) ###"
 main "$@" | tee -a $SOUP_LOG