Prepare custom deployment of VM with all software at cvmfs

[TomasKulhanek]

• [x] lightweight VM, without compilation - binaries at cvmfs by default
• [x] cloud deployment to SCARF - STFC OpenStack
• [ ] UI widget to start VM - limit to 1-2 per user
• [ ] cloud deployment to EGI Fedcloud - CESNET and INFN sites

Minor tasks

• [x] fix Apache configuration Require all granted when apache alias points to cvmfs directory,
• [x] create vagrant user programmatically - manage.py shell < addvagrant.py - fixed issue VRE#5
• [x] permissions of /home/vagrant directory and all subdirectories
• [x] update wp6 cloud image in vagrant box repository and egi appdb
• [x] no password and no insecure ssh keys in cloud image, updated user-data-cloud.sh

Single user VM

• [x] / redirect to virtualfolder,
• [x] /api/vf-session-id return vagrant/vagrant
• [x] /api/authproxy/signed_url return /webdav/vagrant
• [x] alternate context script
• [x] shutdown, destroy VM if not used. WON'T FIX, leave it on user's request, vagrant halt, vagrant destroy

[TomasKulhanek]

complicated instruction howto access fedcloud via commandline tools.

• [x] - deploying VM from SL7 (CernVM 4)not initially supported by http://go.egi.eu-fedcloud.ui, but scripts with slight changes work.

Comments:

• non-standard script and software installation - usually it is done by adding repo and yum install, not by downloading script from unsecured http:// site and execute it under root privileges!
• script points to specific version of package - 4 years old even new packages are at the site already presented http://repository.egi.eu/sw/production/umd/3/sl6/x86_64/updates
• installing fetch-crl complains about keys - repeated install solved that issue
• occi fails on An error occurred! Message: The specified mixin is not declared in the model! "http://occi.carach5.ics.muni.cz/occi/infrastructure/os_tpl#uuid_enmr_d6_1_virtualfoldervm_fedcloud_warg_171" reported as issue to MetaCentrum #196594, resolved as registered under different voms (fedcloud, need to be under enmr)
• subsequent error still prevents to deploy - realized that the combination of template id (medium) is too small for the occi id, even taken from appdb
• other subsequent error lead that the image is sync in appdb - not available at CESNET

[TomasKulhanek]

not implemented - UI widget to start VM - limit to 1-2 per user, cloud deployment to EGI Fedcloud - CESNET and INFN sites