post_install() {
    :
#!/bin/sh

systemctl daemon-reload
systemctl enable v2raya
systemctl start v2raya

}
post_upgrade() {
    :
#!/bin/sh

systemctl restart v2raya

}
pre_remove() {
    :
#!/bin/sh

systemctl disable v2raya
ststemctl stop v2raya
ststemctl stop v2ray

}
post_remove() {
    :
#!/bin/sh

systemctl daemon-reload

}