Adding os verification support for rhel and fedora

create_full_environment.sh

@@ -6,6 +6,28 @@ function error () {
     echo $@ 1>&2
 }
 
+# Check OS
+OS=$(awk -F= '/^ID=/ { print $2 }' /etc/os-release | tr -d '"')
+if [[ ! ${OS} =~ ^(centos)$ ]] && [[ ! ${OS} =~ ^(rhel)$ ]] && [[ ! ${OS} =~ ^(fedora)$ ]]; then
+  error "\"${OS}\" is an unsupported OS. We support only CentOS, RHEL or FEDORA."
+  exit 1
+fi
+
+#Check CentOS version
+VER=$(awk -F= '/^VERSION_ID=/ { print $2 }' /etc/os-release | tr -d '"' | cut -f1 -d'.')
+VER_SUPPORTED=8
+
+if [[ ${OS} =~ ^(centos)$ && ${VER} -ne ${VER_SUPPORTED} ]]; then
+  error "CentOS version ${VER_SUPPORTED} is required."
+  exit 1
+elif [[ ${OS} =~ ^(rhel)$ && ${VER} -ne ${VER_SUPPORTED} ]]
+then
+  error "RHEL version ${VER_SUPPORTED} is required."
+  exit 1
+fi
+# TODO add minimum version fedora validation
+
+
 echo "Installing environment"
 scripts/install_environment.sh
 echo "Done installing"