Add support for package install via zypper

SUSE uses "zypper" for managing packages.

Change-Id: Iac8399e7a4e85e33cad1085f11a08fdb538a96e6
blueprint: heat-cfntools-zypper
This commit is contained in:
Dirk Mueller 2014-05-07 10:37:18 +02:00
parent cd39c89a80
commit 1b9db9948a
2 changed files with 103 additions and 3 deletions

View File

@ -292,7 +292,21 @@ class RpmHelper(object):
return command.status == 0
@classmethod
def install(cls, packages, rpms=True):
def zypper_package_available(cls, pkg):
"""Indicates whether pkg is available via zypper.
Arguments:
pkg -- A package name (with optional version and release spec).
e.g., httpd
e.g., httpd-2.2.22
e.g., httpd-2.2.22-1.fc16
"""
cmd_str = "zypper -n --no-refresh search %s" % pkg
command = CommandRunner(cmd_str).run()
return command.status == 0
@classmethod
def install(cls, packages, rpms=True, zypper=False):
"""Installs (or upgrades) a set of packages via RPM or via Yum.
Arguments:
@ -312,6 +326,10 @@ class RpmHelper(object):
cmd = "rpm -U --force --nosignature "
cmd += " ".join(packages)
LOG.info("Installing packages: %s" % cmd)
elif zypper:
cmd = "zypper -n install "
cmd += " ".join(packages)
LOG.info("Installing packages: %s" % cmd)
else:
cmd = "yum -y install "
cmd += " ".join(packages)
@ -321,7 +339,7 @@ class RpmHelper(object):
LOG.warn("Failed to install packages: %s" % cmd)
@classmethod
def downgrade(cls, packages, rpms=True):
def downgrade(cls, packages, rpms=True, zypper=False):
"""Downgrades a set of packages via RPM or via Yum.
Arguments:
@ -338,6 +356,13 @@ class RpmHelper(object):
"""
if rpms:
cls.install(packages)
elif zypper:
cmd = "zypper -n install --oldpackage "
cmd += " ".join(packages)
LOG.info("Downgrading packages: %s", cmd)
command = CommandRunner(cmd).run()
if command.status:
LOG.warn("Failed to downgrade packages: %s" % cmd)
else:
cmd = "yum -y downgrade "
cmd += " ".join(packages)
@ -391,6 +416,51 @@ class PackagesHandler(object):
cmd_str = 'easy_install %s' % (pkg_name)
CommandRunner(cmd_str).run()
def _handle_zypper_packages(self, packages):
"""Handle installation, upgrade, or downgrade of packages via yum.
Arguments:
packages -- a package entries map of the form:
"pkg_name" : "version",
"pkg_name" : ["v1", "v2"],
"pkg_name" : []
For each package entry:
* if no version is supplied and the package is already installed, do
nothing
* if no version is supplied and the package is _not_ already
installed, install it
* if a version string is supplied, and the package is already
installed, determine whether to downgrade or upgrade (or do nothing
if version matches installed package)
* if a version array is supplied, choose the highest version from the
array and follow same logic for version string above
"""
# collect pkgs for batch processing at end
installs = []
downgrades = []
for pkg_name, versions in packages.iteritems():
ver = RpmHelper.newest_rpm_version(versions)
pkg = "%s-%s" % (pkg_name, ver) if ver else pkg_name
if RpmHelper.rpm_package_installed(pkg):
# FIXME:print non-error, but skipping pkg
pass
elif not RpmHelper.zypper_package_available(pkg):
LOG.warn("Skipping package '%s' - unavailable via zypper", pkg)
elif not ver:
installs.append(pkg)
else:
current_ver = RpmHelper.rpm_package_version(pkg)
rc = RpmHelper.compare_rpm_versions(current_ver, ver)
if rc < 0:
installs.append(pkg)
elif rc > 0:
downgrades.append(pkg)
if installs:
RpmHelper.install(installs, rpms=False, zypper=True)
if downgrades:
RpmHelper.downgrade(downgrades, zypper=True)
def _handle_yum_packages(self, packages):
"""Handle installation, upgrade, or downgrade of packages via yum.
@ -462,6 +532,7 @@ class PackagesHandler(object):
# map of function pointers to handle different package managers
_package_handlers = {"yum": _handle_yum_packages,
"zypper": _handle_zypper_packages,
"rpm": _handle_rpm_packages,
"apt": _handle_apt_packages,
"rubygems": _handle_gem_packages,

View File

@ -76,7 +76,7 @@ class TestCommandRunner(MockPopenTestCase):
class TestPackages(MockPopenTestCase):
def test_rpm_install(self):
def test_yum_install(self):
install_list = []
for pack in ('httpd', 'wordpress', 'mysql-server'):
self.mock_cmd_run(['su', 'root', '-c',
@ -105,6 +105,35 @@ class TestPackages(MockPopenTestCase):
cfn_helper.PackagesHandler(packages).apply_packages()
self.m.VerifyAll()
def test_zypper_install(self):
install_list = []
for pack in ('httpd', 'wordpress', 'mysql-server'):
self.mock_cmd_run(['su', 'root', '-c',
'rpm -q %s' % pack]).AndReturn(
FakePOpen(returncode=1))
self.mock_cmd_run(
['su', 'root', '-c',
'zypper -n --no-refresh search %s' % pack]) \
.AndReturn(FakePOpen(returncode=0))
install_list.append(pack)
self.mock_cmd_run(
['su', 'root', '-c',
'zypper -n install %s' % ' '.join(install_list)]) \
.AndReturn(FakePOpen(returncode=0))
self.m.ReplayAll()
packages = {
"zypper": {
"mysql-server": [],
"httpd": [],
"wordpress": []
}
}
cfn_helper.PackagesHandler(packages).apply_packages()
self.m.VerifyAll()
def test_apt_install(self):
install_list = 'httpd wordpress mysql-server'
cmd = 'DEBIAN_FRONTEND=noninteractive apt-get -y install'