Add software_deploy_start to perform software deploy start on
background. This script is to perform below:
0. (until apt-ostree is ready) create ostree repo and root directory
with deployment
1. collect data from running system for migration,
2. create bind mounts to deployment directory
3. copy necessary data to deployment directory
4. in chroot, start 2nd instance of PostgreSQL database service
5. perform data migration
Story: 2010676
Task: 48959
TCs:
passed: full cycle of software deploy start for a major/minor
release deploy.
Change-Id: I3e5ff27d2c08597686b1c5892c52d5ad7d1142b2
Signed-off-by: Bin Qian <bin.qian@windriver.com>
a8c5688264