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add support for lower worker-multiplier for single.
bump controller kvm memory requirement to 6 GiB
Merge pull request #301 from Ubuntu-Solutions-Engineering/lower-resources-for-single

Lower resources for single
Consolidate config/log locations for single installer

Allows the user to inspect the installation from the
host system (~/.cloud-install) without having to
ssh into the container first.

Fixes #248

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>
newline in userdata

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>
container reboot not needed

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>