[Bug 1744758] Re: libvirt 2.5.0-3ubuntu5.6~cloud0 appears to be compiled without gnutls

[ChristianEhrhardt]

Since archives of Zesty are gone this is hard, you can't install packages anymore you don't have yet. The closest are Artful and Xenial.
But Lee already tested 3.6 which is more or less what is in Artful.

There is quite a chance that this is related to the gnutls FTBFS we had
in zesty, as I outlined in comment #1 - but the build itself looks good.

Maybe it is time to let the CI move up to a supported repo.
@Corey - does UCA-O still have support far longer than Zesty that is EOL now?
@Corey - you might need to drill down the Ocata build or use ddebs from UCA to step through the function if the ecnryption support is really missing.

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https://bugs.launchpad.net/bugs/1744758

Title:
  libvirt 2.5.0-3ubuntu5.6~cloud0  appears to be compiled without gnutls

Status in Ubuntu Cloud Archive:
  New
Status in libvirt package in Ubuntu:
  Incomplete

Bug description:
  Currently seeing the following error in OpenStack CI on 16.04 with
  Libvirt 2.5.0 provided via the UCA when attempting to create a `luks`
  Libvirt secret:

  http://logs.openstack.org/50/536350/1/check/legacy-grenade-dsvm-
  neutron-multinode-live-
  migration/5f7ed57/logs/screen-n-cpu.txt.gz?level=ERROR#_Jan_22_15_09_28_467904

  ~~~
  libvirtError: unsupported configuration: luks encryption requires encrypted secrets to be supported
  ~~~

  This appears to be bubbling up due to the HAVE_GNUTLS_CIPHER_ENCRYPT
  macro being 0 in this build due to gnutls_cipher_encrypt being missing
  at build time :

  src/util/vircrypto.c

  102 virCryptoHaveCipher(virCryptoCipher algorithm)                                  
  103 {                                                                               
  104     switch (algorithm) {                                                        
  105                                                                                 
  106     case VIR_CRYPTO_CIPHER_AES256CBC:                                           
  107 #ifdef HAVE_GNUTLS_CIPHER_ENCRYPT                                               
  108     return true;                                                                
  109 #else                                                                           
  110     return false;                                                               
  111 #endif                                                                          
  112                                                                                 
  113     case VIR_CRYPTO_CIPHER_NONE:                                                
  114     case VIR_CRYPTO_CIPHER_LAST:                                                
  115         break;                                                                  
  116     };                                                                          
  117                                                                                 
  118     return false;                                                               
  119 }

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