def create_virtualenv(desired_python_dir, logger, package_dir,
base_python_exe=None,
never_download=False):
virtualenv_search_dirs = get_python_search_paths()
python_exe = find_python_executable(logger, explicit_path=base_python_exe)
# we start our virtualenv executable search at the same place as where we have
# the python executable. Then, we check a bunch of well-known places to stick
# virtualenv
virtualenv_search_dirs = [os.path.dirname(python_exe)] + get_python_search_paths()
virtualenv = find_executable("virtualenv", virtualenv_search_dirs, logger)
version = get_virtualenv_version(virtualenv)
if compare_versions("1.6.1", version)>=0:
# --never-download and --extra-search-dir were added in 1.6.1
has_options = True
else:
has_options = False
if compare_versions("1.7", version)>=0:
site_packages_opt = True
else:
site_packages_opt = False
if not os.path.exists(desired_python_dir):
os.makedirs(desired_python_dir)
opts = ["--python=%s" % python_exe,]
if site_packages_opt:
opts.append("--system-site-packages")
if has_options:
opts.append("--extra-search-dir=%s" % package_dir)
if never_download:
opts.append("--never-download")
elif never_download:
raise Exception("--never-download option requires virtualenv 1.6.1 or later")
# JF 6/7/2011: removed --no-site-packages command line option, as it makes
# it hard to use pre-built packages installed by the package manager,
# like py-mysql
cmd = "%s %s %s" % (virtualenv, ' '.join(opts), desired_python_dir)
logger.info('create virtualenv running command: %s' % cmd)
rc = system(cmd, logger, cwd=desired_python_dir)
if rc != 0:
raise Exception("Execution of '%s' failed, rc was %d" % (cmd, rc))
def setup_slave_host(resource, master_deployment_home,
password_file, password_salt_file):
bootstrap_script = os.path.abspath(os.path.join(master_deployment_home,
"engage/bootstrap.py"))
assert os.path.exists(bootstrap_script), "Can't find bootstrap script %s" % \
bootstrap_script
python_exe = find_python_executable(logger)
dh = resource["config_port"]["genforma_home"]
logger.info("Bootstrapping slave node %s" % resource["id"])
deployed_nodes_root = os.path.dirname(dh)
if not os.path.exists(deployed_nodes_root):
os.makedirs(deployed_nodes_root)
try:
rc = procutils.run_and_log_program([python_exe, bootstrap_script, "-p",
python_exe, dh], None, logger,
cwd=os.path.dirname(bootstrap_script))
except Exception, e:
logger.exception("Error in slave bootstrap for %s: %s" % (e, resource["id"]))
raise UserError(errors[ERR_SLAVE_BOOTSTRAP],
msg_args={"host":resource["id"]},
developer_msg="deployment home was %s" % dh)
