hi . does anyone run openwrt as container in mikrotik ? i tested that and container stopped after seconds
You have misunderstood what a container is.
See this thread:
http://forum.mikrotik.com/t/mikrotik-ccr2004-1g-12s-2xs-container/163081/13
We got openWRT working on a CCR2004. You could get it working on a CHR, but unless you’ve got a particular reason to run it inside CHR instead of as its own VPS, it makes little sense.