ceph/qa/tasks/calamari_nosetests.py

   1 import contextlib
   2 import logging
   3 import os
   4 import textwrap
   5 import yaml
   6
   7 from cStringIO import StringIO
   8 from teuthology import contextutil
   9 from teuthology import misc
  10 from teuthology import packaging
  11 from teuthology.orchestra import run
  12
  13 log = logging.getLogger(__name__)
  14
  15 # extra stuff we need to do our job here
  16 EXTRA_PKGS = [
  17     'git',
  18 ]
  19
  20 # stuff that would be in a devmode install, but should be
  21 # installed in the system for running nosetests against
  22 # a production install.
  23 EXTRA_NOSETEST_PKGS = [
  24     'python-psutil',
  25     'python-mock',
  26 ]
  27
  28
  29 def find_client0(cluster):
  30     ''' Find remote that has client.0 role, or None '''
  31     for rem, roles in cluster.remotes.iteritems():
  32         if 'client.0' in roles:
  33             return rem
  34     return None
  35
  36
  37 def pip(remote, package, venv=None, uninstall=False, force=False):
  38     ''' {un}install a package with pip, possibly in a virtualenv '''
  39     if venv:
  40         pip = os.path.join(venv, 'bin', 'pip')
  41         args = ['sudo', pip]
  42     else:
  43         args = ['sudo', 'pip']
  44
  45     if uninstall:
  46         args.extend(['uninstall', '-y'])
  47     else:
  48         args.append('install')
  49         if force:
  50             args.append('-I')
  51
  52     args.append(package)
  53     remote.run(args=args)
  54
  55
  56 @contextlib.contextmanager
  57 def install_epel(remote):
  58     ''' install a disabled-by-default epel repo config file '''
  59     remove = False
  60     try:
  61         if remote.os.package_type == 'deb':
  62             yield
  63         else:
  64             remove = True
  65             distromajor = remote.os.version.split('.')[0]
  66
  67             repofiledata = textwrap.dedent('''
  68                 [epel]
  69                 name=epel{version}
  70                 metalink=http://mirrors.fedoraproject.org/metalink?repo=epel-{version}&arch=$basearch
  71                 enabled=0
  72                 gpgcheck=0
  73             ''').format(version=distromajor)
  74
  75             misc.create_file(remote, '/etc/yum.repos.d/epel.repo',
  76                              data=repofiledata, sudo=True)
  77             remote.run(args='sudo yum clean all')
  78             yield
  79
  80     finally:
  81         if remove:
  82             misc.delete_file(remote, '/etc/yum.repos.d/epel.repo', sudo=True)
  83
  84
  85 def enable_epel(remote, enable=True):
  86     ''' enable/disable the epel repo '''
  87     args = 'sudo sed -i'.split()
  88     if enable:
  89         args.extend(['s/enabled=0/enabled=1/'])
  90     else:
  91         args.extend(['s/enabled=1/enabled=0/'])
  92     args.extend(['/etc/yum.repos.d/epel.repo'])
  93
  94     remote.run(args=args)
  95     remote.run(args='sudo yum clean all')
  96
  97
  98 @contextlib.contextmanager
  99 def install_extra_pkgs(client):
 100     ''' Install EXTRA_PKGS '''
 101     try:
 102         for pkg in EXTRA_PKGS:
 103             packaging.install_package(pkg, client)
 104         yield
 105
 106     finally:
 107         for pkg in EXTRA_PKGS:
 108             packaging.remove_package(pkg, client)
 109
 110
 111 @contextlib.contextmanager
 112 def clone_calamari(config, client):
 113     ''' clone calamari source into current directory on remote '''
 114     branch = config.get('calamari_branch', 'master')
 115     url = config.get('calamari_giturl', 'git://github.com/ceph/calamari')
 116     try:
 117         out = StringIO()
 118         # ensure branch is present (clone -b will succeed even if
 119         # the branch doesn't exist, falling back to master)
 120         client.run(
 121             args='git ls-remote %s %s' % (url, branch),
 122             stdout=out,
 123             label='check for calamari branch %s existence' % branch
 124         )
 125         if len(out.getvalue()) == 0:
 126             raise RuntimeError("Calamari branch %s doesn't exist" % branch)
 127         client.run(args='git clone -b %s %s' % (branch, url))
 128         yield
 129     finally:
 130         # sudo python setup.py develop may have left some root files around
 131         client.run(args='sudo rm -rf calamari')
 132
 133
 134 @contextlib.contextmanager
 135 def write_info_yaml(cluster, client):
 136     ''' write info.yaml to client for nosetests '''
 137     try:
 138         info = {
 139             'cluster': {
 140                 rem.name: {'roles': roles}
 141                 for rem, roles in cluster.remotes.iteritems()
 142             }
 143         }
 144         misc.create_file(client, 'calamari/info.yaml',
 145                          data=yaml.safe_dump(info, default_flow_style=False))
 146         yield
 147     finally:
 148         misc.delete_file(client, 'calamari/info.yaml')
 149
 150
 151 @contextlib.contextmanager
 152 def write_test_conf(client):
 153     ''' write calamari/tests/test.conf to client for nosetests '''
 154     try:
 155         testconf = textwrap.dedent('''
 156             [testing]
 157
 158             calamari_control = external
 159             ceph_control = external
 160             bootstrap = False
 161             api_username = admin
 162             api_password = admin
 163             embedded_timeout_factor = 1
 164             external_timeout_factor = 3
 165             external_cluster_path = info.yaml
 166         ''')
 167         misc.create_file(client, 'calamari/tests/test.conf', data=testconf)
 168         yield
 169
 170     finally:
 171         misc.delete_file(client, 'calamari/tests/test.conf')
 172
 173
 174 @contextlib.contextmanager
 175 def prepare_nosetest_env(client):
 176     try:
 177         # extra dependencies that would be in the devmode venv
 178         if client.os.package_type == 'rpm':
 179             enable_epel(client, enable=True)
 180         for package in EXTRA_NOSETEST_PKGS:
 181             packaging.install_package(package, client)
 182         if client.os.package_type == 'rpm':
 183             enable_epel(client, enable=False)
 184
 185         # install nose itself into the calamari venv, force it in case it's
 186         # already installed in the system, so we can invoke it by path without
 187         # fear that it's not present
 188         pip(client, 'nose', venv='/opt/calamari/venv', force=True)
 189
 190         # install a later version of requests into the venv as well
 191         # (for precise)
 192         pip(client, 'requests', venv='/opt/calamari/venv', force=True)
 193
 194         # link (setup.py develop) calamari/rest-api into the production venv
 195         # because production does not include calamari_rest.management, needed
 196         # for test_rest_api.py's ApiIntrospection
 197         args = 'cd calamari/rest-api'.split() + [run.Raw(';')] + \
 198                'sudo /opt/calamari/venv/bin/python setup.py develop'.split()
 199         client.run(args=args)
 200
 201         # because, at least in Python 2.6/Centos, site.py uses
 202         # 'os.path.exists()' to process .pth file entries, and exists() uses
 203         # access(2) to check for existence, all the paths leading up to
 204         # $HOME/calamari/rest-api need to be searchable by all users of
 205         # the package, which will include the WSGI/Django app, running
 206         # as the Apache user.  So make them all world-read-and-execute.
 207         args = 'sudo chmod a+x'.split() + \
 208             ['.', './calamari', './calamari/rest-api']
 209         client.run(args=args)
 210
 211         # make one dummy request just to get the WSGI app to do
 212         # all its log creation here, before the chmod below (I'm
 213         # looking at you, graphite -- /var/log/calamari/info.log and
 214         # /var/log/calamari/exception.log)
 215         client.run(args='wget -q -O /dev/null http://localhost')
 216
 217         # /var/log/calamari/* is root-or-apache write-only
 218         client.run(args='sudo chmod a+w /var/log/calamari/*')
 219
 220         yield
 221
 222     finally:
 223         args = 'cd calamari/rest-api'.split() + [run.Raw(';')] + \
 224                'sudo /opt/calamari/venv/bin/python setup.py develop -u'.split()
 225         client.run(args=args)
 226         for pkg in ('nose', 'requests'):
 227             pip(client, pkg, venv='/opt/calamari/venv', uninstall=True)
 228         for package in EXTRA_NOSETEST_PKGS:
 229             packaging.remove_package(package, client)
 230
 231
 232 @contextlib.contextmanager
 233 def run_nosetests(client):
 234     ''' Actually run the tests '''
 235     args = [
 236         'cd',
 237         'calamari',
 238         run.Raw(';'),
 239         'CALAMARI_CONFIG=/etc/calamari/calamari.conf',
 240         '/opt/calamari/venv/bin/nosetests',
 241         '-v',
 242         'tests/',
 243     ]
 244     client.run(args=args)
 245     yield
 246
 247
 248 @contextlib.contextmanager
 249 def task(ctx, config):
 250     """
 251     Run Calamari tests against an instance set up by 'calamari_server'.
 252
 253     -- clone the Calamari source into $HOME (see options)
 254     -- write calamari/info.yaml describing the cluster
 255     -- write calamari/tests/test.conf containing
 256         'external' for calamari_control and ceph_control
 257         'bootstrap = False' to disable test bootstrapping (installing minions)
 258         no api_url necessary (inferred from client.0)
 259         'external_cluster_path = info.yaml'
 260     -- modify the production Calamari install to allow test runs:
 261         install nose in the venv
 262         install EXTRA_NOSETEST_PKGS
 263         link in, with setup.py develop, calamari_rest (for ApiIntrospection)
 264     -- set CALAMARI_CONFIG to point to /etc/calamari/calamari.conf
 265     -- nosetests -v tests/
 266
 267     Options are:
 268         calamari_giturl: url from which to git clone calamari
 269                          (default: git://github.com/ceph/calamari)
 270         calamari_branch: git branch of calamari to check out
 271                          (default: master)
 272
 273     Note: the tests must find a clean cluster, so don't forget to
 274     set the crush default type appropriately, or install min_size OSD hosts
 275     """
 276     client0 = find_client0(ctx.cluster)
 277     if client0 is None:
 278         raise RuntimeError("must have client.0 role")
 279
 280     with contextutil.nested(
 281         lambda: install_epel(client0),
 282         lambda: install_extra_pkgs(client0),
 283         lambda: clone_calamari(config, client0),
 284         lambda: write_info_yaml(ctx.cluster, client0),
 285         lambda: write_test_conf(client0),
 286         lambda: prepare_nosetest_env(client0),
 287         lambda: run_nosetests(client0),
 288     ):
 289         yield