Re: [Kimchi-devel] [PATCH 1/2] Dynamically generate template parameters for different distros

We define hard coded template for different distros. It's not flexible to generate templates for other platforms or new distros. This patch changes to dynamically generate vm template. With this change, it can support new distro, like Fedora20, without any modifications. Signed-off-by: Mark Wu <wudxw(a)linux.vnet.ibm.com&gt; --- src/kimchi/osinfo.py | 174 ++++++++++------------------------------------- src/kimchi/vmtemplate.py | 2 +- tests/test_osinfo.py | 28 ++++++-- 3 files changed, 60 insertions(+), 144 deletions(-) diff --git a/src/kimchi/osinfo.py b/src/kimchi/osinfo.py index 20a93a6..b141d9e 100644 --- a/src/kimchi/osinfo.py +++ b/src/kimchi/osinfo.py @@ -22,136 +22,23 @@ import copy import os +from distutils.version import LooseVersion + + +common_spec = {'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, 'memory': 1024, + 'disks': [{'index': 0, 'size': 10}], 'cdrom_bus': 'ide', + 'cdrom_index': 2} + + +modern_spec = dict(common_spec, disk_bus='virtio', nic_model='virtio') + + +old_spec = dict(common_spec, disk_bus='ide', nic_model='e1000') + + +modern_version_bases = {'debian': '6.0', 'ubuntu': '7.10', 'opensuse': '10.3', + 'centos': '5.3', 'rhel': '6.0', 'fedora': '16'} -osinfo = [ - # Entries are searched in order and the first match will be returned - ('debian', { - 'version': lambda d,v: bool(d == 'debian' and v in ('6.0', '7.0')), - 'icon': 'images/icon-debian.png', - 'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, - 'memory': 1024, - 'disks': [{'index': 0, 'size': 10}], - 'disk_bus': 'virtio', 'nic_model': 'virtio', - 'cdrom_bus': 'ide', 'cdrom_index': 2, - }), - ('debian-old', { - 'version': lambda d,v: bool(d == 'debian'), - 'icon': 'images/icon-debian.png', - 'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, - 'memory': 1024, - 'disks': [{'index': 0, 'size': 10}], - 'disk_bus': 'ide', 'nic_model': 'e1000', - 'cdrom_bus': 'ide', 'cdrom_index': 2, - }), - ('ubuntu', { - 'version': lambda d,v: bool(d == 'ubuntu' and v in - ('7.10', '8.04', '8.10', '9.04', '9.10', '10.04', '10.10', - '11.04', '11.10', '12.04', '12.10', '13.04', '13.10')), - 'icon': 'images/icon-ubuntu.png', - 'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, - 'memory': 1024, - 'disks': [{'index': 0, 'size': 10}], - 'disk_bus': 'virtio', 'nic_model': 'virtio', - 'cdrom_bus': 'ide', 'cdrom_index': 2, - }), - ('ubuntu-old', { - 'version': lambda d,v: bool(d == 'ubuntu'), - 'icon': 'images/icon-ubuntu.png', - 'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, - 'memory': 1024, - 'disks': [{'index': 0, 'size': 10}], - 'disk_bus': 'ide', 'nic_model': 'e1000', - 'cdrom_bus': 'ide', 'cdrom_index': 2, - }), - ('opensuse', { - 'version': lambda d,v: bool(d == 'opensuse' and v in - ('10.3', '11.0', '11.1', '11.2', '11.3', '11.4', '12.1', '12.2', - '12.3',)), - 'icon': 'images/icon-opensuse.png', - 'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, - 'memory': 1024, - 'disks': [{'index': 0, 'size': 10}], - 'disk_bus': 'virtio', 'nic_model': 'virtio', - 'cdrom_bus': 'ide', 'cdrom_index': 2, - }), - ('opensuse-old', { - 'version': lambda d,v: bool(d == 'opensuse'), - 'icon': 'images/icon-opensuse.png', - 'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, - 'memory': 1024, - 'disks': [{'index': 0, 'size': 10}], - 'disk_bus': 'ide', 'nic_model': 'e1000', - 'cdrom_bus': 'ide', 'cdrom_index': 2, - }), - ('fedora', { - 'version': lambda d,v: bool(d == 'fedora' and v in - ('16', '17', '18', '19')), - 'icon': 'images/icon-fedora.png', - 'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, - 'memory': 1024, - 'disks': [{'index': 0, 'size': 10}], - 'disk_bus': 'virtio', 'nic_model': 'virtio', - 'cdrom_bus': 'ide', 'cdrom_index': 2, - }), - ('fedora-old', { - 'version': lambda d,v: bool(d == 'fedora'), - 'icon': 'images/icon-fedora.png', - 'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, - 'memory': 1024, - 'disks': [{'index': 0, 'size': 10}], - 'disk_bus': 'ide', 'nic_model': 'e1000', - 'cdrom_bus': 'ide', 'cdrom_index': 2, - }), - ('rhel', { - 'version': lambda d,v: bool(d == 'rhel' and - v.startswith('6.')), - 'icon': 'images/icon-vm.png', - 'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, - 'memory': 1024, - 'disks': [{'index': 0, 'size': 10}], - 'disk_bus': 'virtio', 'nic_model': 'virtio', - 'cdrom_bus': 'ide', 'cdrom_index': 2, - }), - ('rhel-old', { - 'version': lambda d,v: bool(d == 'rhel'), - 'icon': 'images/icon-vm.png', - 'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, - 'memory': 1024, - 'disks': [{'index': 0, 'size': 10}], - 'disk_bus': 'ide', 'nic_model': 'e1000', - 'cdrom_bus': 'ide', 'cdrom_index': 2, - }), - ('centos', { - 'version': lambda d,v: bool(d == 'centos' and - (v in ('5.3', '5.4', '5.5') or v.startswith('6.'))), - 'icon': 'images/icon-centos.png', - 'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, - 'memory': 1024, - 'disks': [{'index': 0, 'size': 10}], - 'disk_bus': 'virtio', 'nic_model': 'virtio', - 'cdrom_bus': 'ide', 'cdrom_index': 2, - }), - ('centos-old', { - 'version': lambda d,v: bool(d == 'centos'), - 'icon': 'images/icon-centos.png', - 'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, - 'memory': 1024, - 'disks': [{'index': 0, 'size': 10}], - 'disk_bus': 'ide', 'nic_model': 'e1000', - 'cdrom_bus': 'ide', 'cdrom_index': 2, - }), - ('unknown', { - 'version': lambda d,v: True, - 'icon': 'images/icon-vm.png', - 'os_distro': 'unknown', 'os_version': 'unknown', - 'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, - 'memory': 1024, - 'cdrom': '', - 'disks': [{'index': 0, 'size': 10}], - 'disk_bus': 'ide', 'nic_model': 'e1000', - 'cdrom_bus': 'ide', 'cdrom_index': 2, - }), -] isolinks = { 'debian': { @@ -181,13 +68,22 @@ def lookup(distro, version): 'defaults' and merging the parameters given for the identified OS. If known, a link to a remote install CD is added. """ - for name, entry in osinfo: - # Test if this entry is a valid match - if entry['version'](distro, version): - params = copy.copy(defaults) - params['os_distro'] = distro - params['os_version'] = version - params.update(entry) - params['cdrom'] = isolinks.get(distro, {}).get(version, '') - del params['version'] # Don't pass around the version function - return (name, params) + params = copy.copy(defaults) + params['os_distro'] = distro + params['os_version'] = version + params['cdrom'] = isolinks.get(distro, {}).get(version, '') + + for name, base_version in modern_version_bases.iteritems(): + if name == distro: + params['icon'] = 'images/icon-%s.png' % distro + if LooseVersion(version) >= LooseVersion(base_version): + params.update(modern_spec) + else: + params.update(old_spec) + break + else: + params['icon'] = 'images/icon-vm.png' + params['os_distro'] = params['os_version'] = "unknown" + params.update(old_spec) +

+ return params diff --git a/src/kimchi/vmtemplate.py b/src/kimchi/vmtemplate.py index dd43faa..f92af49 100644 --- a/src/kimchi/vmtemplate.py +++ b/src/kimchi/vmtemplate.py @@ -70,7 +70,7 @@ class VMTemplate(object): # Fetch defaults based on the os distro and version os_distro = args.get('os_distro', iso_distro) os_version = args.get('os_version', iso_version) - name, entry = osinfo.lookup(os_distro, os_version) + entry = osinfo.lookup(os_distro, os_version) self.info.update(entry) # Override with the passed in parameters diff --git a/tests/test_osinfo.py b/tests/test_osinfo.py index f92567d..da3e1d2 100644 --- a/tests/test_osinfo.py +++ b/tests/test_osinfo.py @@ -25,16 +25,36 @@ from kimchi.osinfo import * class OSInfoTests(unittest.TestCase): def test_default_lookup(self): - name, entry = lookup(None, None) - self.assertEquals(name, 'unknown') + entry = lookup(None, None) self.assertEquals('unknown', entry['os_distro']) self.assertEquals('unknown', entry['os_version']) self.assertEquals('default', entry['network']) def test_fedora_lookup(self): cd = 'http://fedora.mirrors.tds.net/pub/fedora/releases/17/Live/x86_64/Fedora-17-x86_64-Live-Desktop.iso' - name, entry = lookup('fedora', '17') - self.assertEquals(name, 'fedora') + entry = lookup('fedora', '17') self.assertEquals(10, entry['disks'][0]['size']) self.assertEquals(cd, entry['cdrom']) self.assertEquals('/storagepools/default', entry['storagepool']) + + def test_old_distros(self): + old_versions = {'debian': '5.0', 'ubuntu': '7.04', 'opensuse': '10.1', + 'centos': '5.1', 'rhel': '5.1', 'fedora': '15'} + for distro, version in old_versions.iteritems(): + entry = lookup(distro, version) + self.assertEquals(entry['disk_bus'], 'ide') + self.assertEquals(entry['nic_model'], 'e1000') + + def test_modern_bases(self): + for distro, version in modern_version_bases.iteritems(): + entry = lookup(distro, version) + self.assertEquals(entry['disk_bus'], 'virtio') + self.assertEquals(entry['nic_model'], 'virtio') + + def test_modern_distros(self): + old_versions = {'debian': '7.0', 'ubuntu': '12.04', 'opensuse': '12.3', + 'centos': '6.4', 'rhel': '6.3', 'fedora': '18'} + for distro, version in old_versions.iteritems(): + entry = lookup(distro, version) + self.assertEquals(entry['disk_bus'], 'virtio') + self.assertEquals(entry['nic_model'], 'virtio')