Automatic propolis and ovmf management

[rcgoodfellow]

This PR adds automatic management of propolis and ovmf binaries.

When a topology is launched, falcon will check for propolis and ovmf binaries in the local falcon topology directory (.falcon unless overridden). In the case that the propolis-server binary is overridden by the user, no attempt is made to manage the overridden binary.

Fixes:

• better propolis server management. #138
• Runner should ensure propolis binary corresponds to propolis client lib falcon is compiled against #91

Improves the situation the following since binaries are now local instead of in /var and /usr/bin.

• multi-tenancy support #76

[rcgoodfellow]

Output from test run

ry@masaka:~/labs/duo$ pfexec ./duo launch
Apr 14 18:59:46.908 INFO propolis-server digest '99d55ec1af0c7e6d62311fbf7020b721fbf6308785af852ef99feed1a64649a4' does not match expected '183e5a0bd6047f08e28e46de58b9f62dee7bc708bebac77747ac94942f49bf1d'
Apr 14 18:59:46.908 INFO downloading propolis server rev 02fdf06bb279fc1b1393f993b90cbe84b7e9f281
[00:00:19] ######################################## 62.03 MiB/62.03 MiB
Apr 14 19:00:07.168 INFO creating links
Apr 14 19:00:07.168 INFO creating simnet link 'duo_violin_vn_sim0'
Apr 14 19:00:07.173 INFO creating vnic link 'duo_violin_vn_vnic0'
Apr 14 19:00:07.190 INFO creating simnet link 'duo_piano_vn_sim0'
Apr 14 19:00:07.192 INFO creating vnic link 'duo_piano_vn_vnic0'
Apr 14 19:00:07.208 INFO creating external links
Apr 14 19:00:07.208 INFO creating external link duo_violin_vn_vnic1
Apr 14 19:00:07.209 INFO creating external link duo_piano_vn_vnic1
Apr 14 19:00:07.210 INFO creating nodes
Apr 14 19:00:07.241 INFO launched instance violin with pid 6342 on port 34139
Apr 14 19:00:07.241 INFO instance ensure: violin
Apr 14 19:00:07.253 INFO launched instance piano with pid 6343 on port 39546
Apr 14 19:00:07.253 INFO instance ensure: piano
Apr 14 19:00:09.198 INFO instance run: violin
Apr 14 19:00:09.234 INFO instance run: piano
Apr 14 19:01:24.266 INFO piano: mounting /opt/cargo-bay
Apr 14 19:01:24.311 INFO piano: finished mounting /opt/cargo-bay
Apr 14 19:01:24.353 INFO violin: mounting /opt/cargo-bay
Apr 14 19:01:24.353 INFO piano: logging out
Apr 14 19:01:24.374 INFO violin: finished mounting /opt/cargo-bay
Apr 14 19:01:24.418 INFO violin: logging out
Apr 14 19:01:25.566 INFO piano: logged out
Apr 14 19:01:25.788 INFO violin: logged out

[elaine-oxide]

See comments.

[elaine-oxide]

All items from my last review have been resolved. Thank you!