def setup_ipv6(): ubuntu_rel = lsb_release()['DISTRIB_CODENAME'].lower() if CompareHostReleases(ubuntu_rel) < "trusty": raise Exception("IPv6 is not supported in the charms for Ubuntu " "versions less than Trusty 14.04") # Need haproxy >= 1.5.3 for ipv6 so for Trusty if we are <= Kilo we need to # use trusty-backports otherwise we can use the UCA. vc = apt_pkg.version_compare(get_pkg_version('haproxy'), '1.5.3') if ubuntu_rel == 'trusty' and vc == -1: add_source('deb http://archive.ubuntu.com/ubuntu trusty-backports ' 'main') apt_update(fatal=True) apt_install('haproxy/trusty-backports', fatal=True)
def cmp_pkgrevno(package, revno, pkgcache=None): """Compare supplied revno with the revno of the installed package. * 1 => Installed revno is greater than supplied arg * 0 => Installed revno is the same as supplied arg * -1 => Installed revno is less than supplied arg This function imports apt_cache function from charmhelpers.fetch if the pkgcache argument is None. Be sure to add charmhelpers.fetch if you call this function, or pass an apt_pkg.Cache() instance. """ from charmhelpers.fetch import apt_pkg if not pkgcache: from charmhelpers.fetch import apt_cache pkgcache = apt_cache() pkg = pkgcache[package] return apt_pkg.version_compare(pkg.current_ver.ver_str, revno)