Using rootwrap to execute the solum scripts
Now the solum scripts using the sudo privileges, but if the use need password to change to root, solum can not execute the scripts
Whiteboard
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Add rootwrap config and command for solum
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Devstack config solum rootwrap
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Using rootwrap for build-lp
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Fix gate py27 test failed
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Move legacy jobs to project
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Remove old solum functional job
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Using privsep for build-lp