Making sure mpm_event will stay

src/deb/vesta/postinst

@@ -110,6 +110,42 @@ if [ ! -f "/usr/local/vesta/data/upgrades/change-clamav-socket-v2" ]; then
     fi
 fi
 
+# Making sure mpm_event will stay
+if [ ! -f "/usr/local/vesta/data/upgrades/keeping-mpm-event" ]; then
+    touch /usr/local/vesta/data/upgrades/keeping-mpm-event
+
+    check_grep=$(grep -c "WEB_SYSTEM='apache2'" /usr/local/vesta/conf/vesta.conf)
+    if [ "$check_grep" -eq 1 ]; then
+
+        switch_to_mpm_event=0
+
+        release=$(cat /etc/debian_version | tr "." "\n" | head -n1)
+        if [ "$release" -eq 10 ]; then
+            echo "=== Keeping mpm_event (1)"
+            switch_to_mpm_event=1
+        else
+            check_grep=$(/usr/local/vesta/bin/v-list-sys-web-status | grep -c "Server MPM: event")
+            if [ "$check_grep" -eq 1 ]; then
+                echo "=== Keeping mpm_event (2)"
+                switch_to_mpm_event=1
+            fi
+        fi
+        if [ "$switch_to_mpm_event" -eq 1 ]; then
+            apt-get -y remove libapache2-mod-php7.4
+            a2dismod ruid2
+            a2dismod suexec
+            a2dismod php5.6
+            a2dismod php7.0
+            a2dismod php7.1
+            a2dismod php7.2
+            a2dismod php7.4
+            a2dismod mpm_prefork
+            a2enmod mpm_event
+            service apache2 restart
+        fi
+    fi
+fi
+
 # Run custom triggers
 if [ -x "/root/vesta-patch.sh" ]; then
     /root/vesta-patch.sh