The idea of planting bamboo inside a plastic barrier is what we call the "Walmart" solution. You can plant bamboo with a confining barrier, but the plant will do one of two things without proper maintenance. One, it will escape. Two, it will become rootbound and will not thrive.
Bamboo should be planted in open ground, preferably with some room for expansion over the course of the years you maintain and enjoy it.
The berm method is also preferable to confining barriers, though after the passing of time the bamboo will become confined and rootbound in the berm as well.