removed documentation for sles

docs/docs/Installation.md

@@ -2,30 +2,17 @@
 
 ## Steps for setting up software-discovery-tool application on server
 
-The instructions provided below specify the steps for SLES 11 SP4/12/12 SP1/12 SP2 and Ubuntu 18.04/20.04/22.04:
+The instructions provided below specify the steps for Ubuntu 20.04/22.04/24.04:
 
 _**NOTE:**_
 * make sure you are logged in as user with sudo permissions
 
 ### Step 1: Install prerequisite
 
-* For SLES (11 SP4, 12):
-
-        sudo zypper install -y python python-setuptools gcc git libffi-devel python-devel openssl openssl-devel cronie python-xml pyxml tar wget aaa_base which w3m
-        sudo easy_install pip
-        sudo pip install 'cryptography==1.4' Flask launchpadlib simplejson logging
-
-* For Ubuntu (18.04, 20.04, 22.04):
-
         sudo apt-get update
         sudo apt-get install -y python3 python3-pip gcc git python3-dev libssl-dev libffi-dev cron python3-lxml apache2 libapache2-mod-wsgi-py3
         sudo pip3 install cffi cryptography Flask launchpadlib simplejson requests pytest
 
-* For SLES (12 SP1, 12 SP2, 12 SP3):
-
-        sudo zypper install -y python3 python3-pip python3-setuptools gcc git libffi-devel python3-devel openssl openssl-devel cronie python3-lxml tar wget aaa_base which w3m apache2 apache2-devel apache2-worker apache2-mod_wsgi-python3
-        sudo pip3 install cryptography launchpadlib simplejson Flask pytest
-
 * if "/usr/local/bin" is not part of $PATH add it to the path:
 
         echo $PATH
@@ -49,49 +36,21 @@ Note: In case software-discovery-tool code is already checked out, do the follow
 
 ### Step 4: Install and configure software-discovery-tool
 
-* SLES (11 SP4, 12):
-
-    #### Copy the init.d script to start/stop/restart software-discovery-tool application
-
-        sudo chmod 755 -R /opt/software-discovery-tool/src/setup
-        cd /opt/software-discovery-tool/src/setup
-        sudo ./create_initid_script.sh
-
-    #### Enable software-discovery-tool service
-
-        sudo systemctl reload software-discovery-tool
-
-    #### Start the Flask server as below
-
-        sudo service software-discovery-tool start
+#### Copy the apache configuration file from `/opt/software-discovery-tool/src/config/sdt.conf` into respective apache configuration folder as below
 
-* SLES (12 SP1, 12 SP2, 12 SP3) and Ubuntu (18.04, 20.04, 22.04):
+        sudo cp -f /opt/software-discovery-tool/src/config/sdt.conf /etc/apache2/sites-available/sdt.conf
+        sudo mv /etc/apache2/sites-available/000-default.conf /etc/apache2/sites-available/z-000-default.conf
 
-    #### Copy the apache configuration file from `/opt/software-discovery-tool/src/config/sdt.conf` into respective apache configuration folder as below
-* SLES (12 SP1, 12 SP2, 12 SP3):
-
-            sudo cp -f /opt/software-discovery-tool/src/config/sdt.conf /etc/apache2/conf.d/sdt.conf
-
-* For Ubuntu (18.04, 20.04, 22.04):
-
-            sudo cp -f /opt/software-discovery-tool/src/config/sdt.conf /etc/apache2/sites-available/sdt.conf
-            sudo mv /etc/apache2/sites-available/000-default.conf /etc/apache2/sites-available/z-000-default.conf
-
-    #### Create new user and group for apache
+#### Create new user and group for apache
 
         sudo useradd apache
         sudo groupadd apache
 
-    #### Enable authorization module in apache configuration(Only for SLES 12 SP1, 12 SP2, 12 SP3)
-
-        sudo a2enmod mod_access_compat
-
-    #### Set appropriate folder and file permission on /opt/software-discovery-tool/ folder for apache
+#### Set appropriate folder and file permission on /opt/software-discovery-tool/ folder for apache
 
         sudo chown -R apache:apache /opt/software-discovery-tool/
 
-
-    #### Start/Restart Apache service
+#### Start/Restart Apache service
 
         sudo apachectl restart
 
@@ -151,7 +110,6 @@ Step 2 of
 [Adding_new_distros](https://github.com/openmainframeproject/software-discovery-tool/blob/master/docs/Adding_new_distros.md#step-2-update-the-supported_distros-variable-in-configuration-file-sdt_basesrcconfigconfigpy)
 
 ### Step 6: Install and populate the SQL database
-* For Ubuntu (18.04, 20.04, 22.04):
 
 #### Install dependencies and complete the secure installation. Remember the root password you set, you will need this in the future.
 
@@ -175,7 +133,6 @@ The "CHANGE_ME" password above should have been changed, and this should be adju
         ./database_build.py
 
 ###  Step 7: Verify that the software-discovery-tool server is up and running
-* For Ubuntu (18.04, 20.04, 22.04):
  We now run the following commands to properly enable the config files of the software-discovery-tool server and then restart the apache server. 
 
         sudo a2ensite z-000-default.conf
@@ -197,8 +154,7 @@ If you run `pytest` as your logged user, it may give errors/warnings since you h
 
 _**NOTE:**_ 
 
-* For SLES (11 SP4, 12) by default the port_number will be 5000
-* For SLES (12 SP1, 12 SP2, 12 SP3) and Ubuntu (18.04, 20.04, 22.04)  by default the port_number will be 80
+* By default the port_number will be 80
 
 ###  Step 8: (Optional) Custom configuration
 Following configuration settings can be managed in `/opt/software-discovery-tool/src/config/config.py`:
@@ -236,16 +192,10 @@ _**NOTE:**_
 
 In case any of the parameters are updated, the server has to be restarted:
 
-* SLES (12 SP1, 12 SP2, 12 SP3) and Ubuntu (18.04, 20.04, 22.04):
-
-    #### Start/Restart Apache service
+#### Start/Restart Apache service
 
         sudo apachectl restart
 
-* SLES (11 SP4, 12):
-
-    #### Start the Flask server as below
-
 ###  Step 9: Start React (frontend) server
 
 #### Ensure Node.js and npm are installed