zuul/zuul/configloader.py

1086 lines
42 KiB
Python

# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from contextlib import contextmanager
import copy
import os
import logging
import six
import pprint
import textwrap
import voluptuous as vs
from zuul import model
from zuul.lib import yamlutil as yaml
import zuul.manager.dependent
import zuul.manager.independent
from zuul import change_matcher
from zuul.lib import encryption
# Several forms accept either a single item or a list, this makes
# specifying that in the schema easy (and explicit).
def to_list(x):
return vs.Any([x], x)
def as_list(item):
if not item:
return []
if isinstance(item, list):
return item
return [item]
class ConfigurationSyntaxError(Exception):
pass
def indent(s):
return '\n'.join([' ' + x for x in s.split('\n')])
@contextmanager
def configuration_exceptions(stanza, conf):
try:
yield
except vs.Invalid as e:
conf = copy.deepcopy(conf)
context = conf.pop('_source_context')
start_mark = conf.pop('_start_mark')
intro = textwrap.fill(textwrap.dedent("""\
Zuul encountered a syntax error while parsing its configuration in the
repo {repo} on branch {branch}. The error was:""".format(
repo=context.project.name,
branch=context.branch,
)))
m = textwrap.dedent("""\
{intro}
{error}
The error appears in a {stanza} stanza with the content:
{content}
{start_mark}""")
m = m.format(intro=intro,
error=indent(str(e)),
stanza=stanza,
content=indent(pprint.pformat(conf)),
start_mark=str(start_mark))
raise ConfigurationSyntaxError(m)
class ZuulSafeLoader(yaml.SafeLoader):
zuul_node_types = frozenset(('job', 'nodeset', 'secret', 'pipeline',
'project', 'project-template'))
def __init__(self, stream, context):
super(ZuulSafeLoader, self).__init__(stream)
self.name = str(context)
self.zuul_context = context
def construct_mapping(self, node, deep=False):
r = super(ZuulSafeLoader, self).construct_mapping(node, deep)
keys = frozenset(r.keys())
if len(keys) == 1 and keys.intersection(self.zuul_node_types):
d = r.values()[0]
if isinstance(d, dict):
d['_start_mark'] = node.start_mark
d['_source_context'] = self.zuul_context
return r
def safe_load_yaml(stream, context):
loader = ZuulSafeLoader(stream, context)
try:
return loader.get_single_data()
except yaml.YAMLError as e:
m = """
Zuul encountered a syntax error while parsing its configuration in the
repo {repo} on branch {branch}. The error was:
{error}
"""
m = m.format(repo=context.project.name,
branch=context.branch,
error=str(e))
raise ConfigurationSyntaxError(m)
finally:
loader.dispose()
class EncryptedPKCS1_OAEP(yaml.YAMLObject):
yaml_tag = u'!encrypted/pkcs1-oaep'
yaml_loader = yaml.SafeLoader
def __init__(self, ciphertext):
self.ciphertext = ciphertext.decode('base64')
def __ne__(self, other):
return not self.__eq__(other)
def __eq__(self, other):
if not isinstance(other, EncryptedPKCS1_OAEP):
return False
return (self.ciphertext == other.ciphertext)
@classmethod
def from_yaml(cls, loader, node):
return cls(node.value)
def decrypt(self, private_key):
return encryption.decrypt_pkcs1_oaep(self.ciphertext, private_key)
class NodeSetParser(object):
@staticmethod
def getSchema():
node = {vs.Required('name'): str,
vs.Required('image'): str,
}
nodeset = {vs.Required('name'): str,
vs.Required('nodes'): [node],
'_source_context': model.SourceContext,
'_start_mark': yaml.Mark,
}
return vs.Schema(nodeset)
@staticmethod
def fromYaml(layout, conf):
with configuration_exceptions('nodeset', conf):
NodeSetParser.getSchema()(conf)
ns = model.NodeSet(conf['name'])
for conf_node in as_list(conf['nodes']):
node = model.Node(conf_node['name'], conf_node['image'])
ns.addNode(node)
return ns
class SecretParser(object):
@staticmethod
def getSchema():
data = {str: vs.Any(str, EncryptedPKCS1_OAEP)}
secret = {vs.Required('name'): str,
vs.Required('data'): data,
'_source_context': model.SourceContext,
'_start_mark': yaml.Mark,
}
return vs.Schema(secret)
@staticmethod
def fromYaml(layout, conf):
with configuration_exceptions('secret', conf):
SecretParser.getSchema()(conf)
s = model.Secret(conf['name'], conf['_source_context'])
s.secret_data = conf['data']
return s
class JobParser(object):
@staticmethod
def getSchema():
auth = {'secrets': to_list(str),
'inherit': bool,
}
node = {vs.Required('name'): str,
vs.Required('image'): str,
}
zuul_role = {vs.Required('zuul'): str,
'name': str}
galaxy_role = {vs.Required('galaxy'): str,
'name': str}
role = vs.Any(zuul_role, galaxy_role)
job = {vs.Required('name'): str,
'parent': str,
'queue-name': str,
'failure-message': str,
'success-message': str,
'failure-url': str,
'success-url': str,
'hold-following-changes': bool,
'voting': bool,
'mutex': str,
'tags': to_list(str),
'branches': to_list(str),
'files': to_list(str),
'auth': to_list(auth),
'irrelevant-files': to_list(str),
'nodes': vs.Any([node], str),
'timeout': int,
'attempts': int,
'pre-run': to_list(str),
'post-run': to_list(str),
'run': str,
'_source_context': model.SourceContext,
'_start_mark': yaml.Mark,
'roles': to_list(role),
'repos': to_list(str),
'vars': dict,
'dependencies': to_list(str),
'allowed-projects': to_list(str),
}
return vs.Schema(job)
simple_attributes = [
'timeout',
'workspace',
'voting',
'hold-following-changes',
'mutex',
'attempts',
'failure-message',
'success-message',
'failure-url',
'success-url',
]
@staticmethod
def fromYaml(tenant, layout, conf):
with configuration_exceptions('job', conf):
JobParser.getSchema()(conf)
# NB: The default detection system in the Job class requires
# that we always assign values directly rather than modifying
# them (e.g., "job.run = ..." rather than
# "job.run.append(...)").
job = model.Job(conf['name'])
job.source_context = conf.get('_source_context')
if 'auth' in conf:
job.auth = model.AuthContext()
if 'inherit' in conf['auth']:
job.auth.inherit = conf['auth']['inherit']
for secret_name in conf['auth'].get('secrets', []):
secret = layout.secrets[secret_name]
if secret.source_context != job.source_context:
raise Exception(
"Unable to use secret %s. Secrets must be "
"defined in the same project in which they "
"are used" % secret_name)
job.auth.secrets.append(secret.decrypt(
job.source_context.project.private_key))
if 'parent' in conf:
parent = layout.getJob(conf['parent'])
job.inheritFrom(parent)
for pre_run_name in as_list(conf.get('pre-run')):
full_pre_run_name = os.path.join('playbooks', pre_run_name)
pre_run = model.PlaybookContext(job.source_context,
full_pre_run_name)
job.pre_run = job.pre_run + (pre_run,)
for post_run_name in as_list(conf.get('post-run')):
full_post_run_name = os.path.join('playbooks', post_run_name)
post_run = model.PlaybookContext(job.source_context,
full_post_run_name)
job.post_run = (post_run,) + job.post_run
if 'run' in conf:
run_name = os.path.join('playbooks', conf['run'])
run = model.PlaybookContext(job.source_context, run_name)
job.run = (run,)
else:
run_name = os.path.join('playbooks', job.name)
run = model.PlaybookContext(job.source_context, run_name)
job.implied_run = (run,) + job.implied_run
for k in JobParser.simple_attributes:
a = k.replace('-', '_')
if k in conf:
setattr(job, a, conf[k])
if 'nodes' in conf:
conf_nodes = conf['nodes']
if isinstance(conf_nodes, six.string_types):
# This references an existing named nodeset in the layout.
ns = layout.nodesets[conf_nodes]
else:
ns = model.NodeSet()
for conf_node in conf_nodes:
node = model.Node(conf_node['name'], conf_node['image'])
ns.addNode(node)
job.nodeset = ns
if 'repos' in conf:
# Accumulate repos in a set so that job inheritance
# is additive.
job.repos = job.repos.union(set(conf.get('repos', [])))
tags = conf.get('tags')
if tags:
# Tags are merged via a union rather than a
# destructive copy because they are intended to
# accumulate onto any previously applied tags.
job.tags = job.tags.union(set(tags))
job.dependencies = frozenset(as_list(conf.get('dependencies')))
roles = []
for role in conf.get('roles', []):
if 'zuul' in role:
r = JobParser._makeZuulRole(tenant, job, role)
if r:
roles.append(r)
job.roles = job.roles.union(set(roles))
variables = conf.get('vars', None)
if variables:
job.updateVariables(variables)
allowed_projects = conf.get('allowed-projects', None)
if allowed_projects:
allowed = []
for p in as_list(allowed_projects):
# TODOv3(jeblair): this limits allowed_projects to the same
# source; we should remove that limitation.
source = job.source_context.project.connection_name
(trusted, project) = tenant.getRepo(source, p)
if project is None:
raise Exception("Unknown project %s" % (p,))
allowed.append(project.name)
job.allowed_projects = frozenset(allowed)
# If the definition for this job came from a project repo,
# implicitly apply a branch matcher for the branch it was on.
if (not job.source_context.trusted):
branches = [job.source_context.branch]
elif 'branches' in conf:
branches = as_list(conf['branches'])
else:
branches = None
if branches:
matchers = []
for branch in branches:
matchers.append(change_matcher.BranchMatcher(branch))
job.branch_matcher = change_matcher.MatchAny(matchers)
if 'files' in conf:
matchers = []
for fn in as_list(conf['files']):
matchers.append(change_matcher.FileMatcher(fn))
job.file_matcher = change_matcher.MatchAny(matchers)
if 'irrelevant-files' in conf:
matchers = []
for fn in as_list(conf['irrelevant-files']):
matchers.append(change_matcher.FileMatcher(fn))
job.irrelevant_file_matcher = change_matcher.MatchAllFiles(
matchers)
return job
@staticmethod
def _makeZuulRole(tenant, job, role):
name = role['zuul'].split('/')[-1]
# TODOv3(jeblair): this limits roles to the same
# source; we should remove that limitation.
source = job.source_context.project.connection_name
(trusted, project) = tenant.getRepo(source, role['zuul'])
if project is None:
return None
return model.ZuulRole(role.get('name', name), source,
project.name, trusted)
class ProjectTemplateParser(object):
log = logging.getLogger("zuul.ProjectTemplateParser")
@staticmethod
def getSchema(layout):
project_template = {
vs.Required('name'): str,
'merge-mode': vs.Any(
'merge', 'merge-resolve',
'cherry-pick'),
'_source_context': model.SourceContext,
'_start_mark': yaml.Mark,
}
for p in layout.pipelines.values():
project_template[p.name] = {'queue': str,
'jobs': [vs.Any(str, dict)]}
return vs.Schema(project_template)
@staticmethod
def fromYaml(tenant, layout, conf):
with configuration_exceptions('project or project-template', conf):
ProjectTemplateParser.getSchema(layout)(conf)
# Make a copy since we modify this later via pop
conf = copy.deepcopy(conf)
project_template = model.ProjectConfig(conf['name'])
source_context = conf['_source_context']
start_mark = conf['_start_mark']
for pipeline in layout.pipelines.values():
conf_pipeline = conf.get(pipeline.name)
if not conf_pipeline:
continue
project_pipeline = model.ProjectPipelineConfig()
project_template.pipelines[pipeline.name] = project_pipeline
project_pipeline.queue_name = conf_pipeline.get('queue')
ProjectTemplateParser._parseJobList(
tenant, layout, conf_pipeline.get('jobs', []),
source_context, start_mark, project_pipeline.job_list)
return project_template
@staticmethod
def _parseJobList(tenant, layout, conf, source_context,
start_mark, job_list):
for conf_job in conf:
if isinstance(conf_job, six.string_types):
job = model.Job(conf_job)
job_list.addJob(job)
elif isinstance(conf_job, dict):
# A dictionary in a job tree may override params
jobname, attrs = conf_job.items()[0]
if attrs:
# We are overriding params, so make a new job def
attrs['name'] = jobname
attrs['_source_context'] = source_context
attrs['_start_mark'] = start_mark
job_list.addJob(JobParser.fromYaml(tenant, layout, attrs))
else:
# Not overriding, so add a blank job
job = model.Job(jobname)
job_list.addJob(job)
else:
raise Exception("Job must be a string or dictionary")
class ProjectParser(object):
log = logging.getLogger("zuul.ProjectParser")
@staticmethod
def getSchema(layout):
project = {
vs.Required('name'): str,
'templates': [str],
'merge-mode': vs.Any('merge', 'merge-resolve',
'cherry-pick'),
'_source_context': model.SourceContext,
'_start_mark': yaml.Mark,
}
for p in layout.pipelines.values():
project[p.name] = {'queue': str,
'jobs': [vs.Any(str, dict)]}
return vs.Schema(project)
@staticmethod
def fromYaml(tenant, layout, conf_list):
for conf in conf_list:
with configuration_exceptions('project', conf):
ProjectParser.getSchema(layout)(conf)
project = model.ProjectConfig(conf_list[0]['name'])
configs = []
for conf in conf_list:
# Make a copy since we modify this later via pop
conf = copy.deepcopy(conf)
conf_templates = conf.pop('templates', [])
# The way we construct a project definition is by parsing the
# definition as a template, then applying all of the
# templates, including the newly parsed one, in order.
project_template = ProjectTemplateParser.fromYaml(
tenant, layout, conf)
configs.extend([layout.project_templates[name]
for name in conf_templates])
configs.append(project_template)
mode = conf.get('merge-mode')
if mode and project.merge_mode is None:
# Set the merge mode to the first one that we find and
# ignore subsequent settings.
project.merge_mode = model.MERGER_MAP[mode]
if project.merge_mode is None:
# If merge mode was not specified in any project stanza,
# set it to the default.
project.merge_mode = model.MERGER_MAP['merge-resolve']
for pipeline in layout.pipelines.values():
project_pipeline = model.ProjectPipelineConfig()
queue_name = None
# For every template, iterate over the job tree and replace or
# create the jobs in the final definition as needed.
pipeline_defined = False
for template in configs:
if pipeline.name in template.pipelines:
ProjectParser.log.debug(
"Applying template %s to pipeline %s" %
(template.name, pipeline.name))
pipeline_defined = True
template_pipeline = template.pipelines[pipeline.name]
project_pipeline.job_list.inheritFrom(
template_pipeline.job_list)
if template_pipeline.queue_name:
queue_name = template_pipeline.queue_name
if queue_name:
project_pipeline.queue_name = queue_name
if pipeline_defined:
project.pipelines[pipeline.name] = project_pipeline
return project
class PipelineParser(object):
log = logging.getLogger("zuul.PipelineParser")
# A set of reporter configuration keys to action mapping
reporter_actions = {
'start': 'start_actions',
'success': 'success_actions',
'failure': 'failure_actions',
'merge-failure': 'merge_failure_actions',
'disabled': 'disabled_actions',
}
@staticmethod
def getDriverSchema(dtype, connections):
methods = {
'trigger': 'getTriggerSchema',
'reporter': 'getReporterSchema',
}
schema = {}
# Add the configured connections as available layout options
for connection_name, connection in connections.connections.items():
method = getattr(connection.driver, methods[dtype], None)
if method:
schema[connection_name] = to_list(method())
return schema
@staticmethod
def getSchema(layout, connections):
manager = vs.Any('independent',
'dependent')
precedence = vs.Any('normal', 'low', 'high')
approval = vs.Schema({'username': str,
'email-filter': str,
'email': str,
'older-than': str,
'newer-than': str,
}, extra=True)
require = {'approval': to_list(approval),
'open': bool,
'current-patchset': bool,
'status': to_list(str)}
reject = {'approval': to_list(approval)}
window = vs.All(int, vs.Range(min=0))
window_floor = vs.All(int, vs.Range(min=1))
window_type = vs.Any('linear', 'exponential')
window_factor = vs.All(int, vs.Range(min=1))
pipeline = {vs.Required('name'): str,
vs.Required('manager'): manager,
'source': str,
'precedence': precedence,
'description': str,
'require': require,
'reject': reject,
'success-message': str,
'failure-message': str,
'merge-failure-message': str,
'footer-message': str,
'dequeue-on-new-patchset': bool,
'ignore-dependencies': bool,
'allow-secrets': bool,
'disable-after-consecutive-failures':
vs.All(int, vs.Range(min=1)),
'window': window,
'window-floor': window_floor,
'window-increase-type': window_type,
'window-increase-factor': window_factor,
'window-decrease-type': window_type,
'window-decrease-factor': window_factor,
'_source_context': model.SourceContext,
'_start_mark': yaml.Mark,
}
pipeline['trigger'] = vs.Required(
PipelineParser.getDriverSchema('trigger', connections))
for action in ['start', 'success', 'failure', 'merge-failure',
'disabled']:
pipeline[action] = PipelineParser.getDriverSchema('reporter',
connections)
return vs.Schema(pipeline)
@staticmethod
def fromYaml(layout, connections, scheduler, conf):
with configuration_exceptions('pipeline', conf):
PipelineParser.getSchema(layout, connections)(conf)
pipeline = model.Pipeline(conf['name'], layout)
pipeline.description = conf.get('description')
pipeline.source = connections.getSource(conf['source'])
precedence = model.PRECEDENCE_MAP[conf.get('precedence')]
pipeline.precedence = precedence
pipeline.failure_message = conf.get('failure-message',
"Build failed.")
pipeline.merge_failure_message = conf.get(
'merge-failure-message', "Merge Failed.\n\nThis change or one "
"of its cross-repo dependencies was unable to be "
"automatically merged with the current state of its "
"repository. Please rebase the change and upload a new "
"patchset.")
pipeline.success_message = conf.get('success-message',
"Build succeeded.")
pipeline.footer_message = conf.get('footer-message', "")
pipeline.start_message = conf.get('start-message',
"Starting {pipeline.name} jobs.")
pipeline.dequeue_on_new_patchset = conf.get(
'dequeue-on-new-patchset', True)
pipeline.ignore_dependencies = conf.get(
'ignore-dependencies', False)
pipeline.allow_secrets = conf.get('allow-secrets', False)
for conf_key, action in PipelineParser.reporter_actions.items():
reporter_set = []
if conf.get(conf_key):
for reporter_name, params \
in conf.get(conf_key).items():
reporter = connections.getReporter(reporter_name,
params)
reporter.setAction(conf_key)
reporter_set.append(reporter)
setattr(pipeline, action, reporter_set)
# If merge-failure actions aren't explicit, use the failure actions
if not pipeline.merge_failure_actions:
pipeline.merge_failure_actions = pipeline.failure_actions
pipeline.disable_at = conf.get(
'disable-after-consecutive-failures', None)
pipeline.window = conf.get('window', 20)
pipeline.window_floor = conf.get('window-floor', 3)
pipeline.window_increase_type = conf.get(
'window-increase-type', 'linear')
pipeline.window_increase_factor = conf.get(
'window-increase-factor', 1)
pipeline.window_decrease_type = conf.get(
'window-decrease-type', 'exponential')
pipeline.window_decrease_factor = conf.get(
'window-decrease-factor', 2)
manager_name = conf['manager']
if manager_name == 'dependent':
manager = zuul.manager.dependent.DependentPipelineManager(
scheduler, pipeline)
elif manager_name == 'independent':
manager = zuul.manager.independent.IndependentPipelineManager(
scheduler, pipeline)
pipeline.setManager(manager)
layout.pipelines[conf['name']] = pipeline
if 'require' in conf or 'reject' in conf:
require = conf.get('require', {})
reject = conf.get('reject', {})
f = model.ChangeishFilter(
open=require.get('open'),
current_patchset=require.get('current-patchset'),
statuses=as_list(require.get('status')),
required_approvals=as_list(require.get('approval')),
reject_approvals=as_list(reject.get('approval'))
)
manager.changeish_filters.append(f)
for trigger_name, trigger_config in conf.get('trigger').items():
trigger = connections.getTrigger(trigger_name, trigger_config)
pipeline.triggers.append(trigger)
manager.event_filters += trigger.getEventFilters(
conf['trigger'][trigger_name])
return pipeline
class TenantParser(object):
log = logging.getLogger("zuul.TenantParser")
tenant_source = vs.Schema({'config-repos': [str],
'project-repos': [str]})
@staticmethod
def validateTenantSources(connections):
def v(value, path=[]):
if isinstance(value, dict):
for k, val in value.items():
connections.getSource(k)
TenantParser.validateTenantSource(val, path + [k])
else:
raise vs.Invalid("Invalid tenant source", path)
return v
@staticmethod
def validateTenantSource(value, path=[]):
TenantParser.tenant_source(value)
@staticmethod
def getSchema(connections=None):
tenant = {vs.Required('name'): str,
'source': TenantParser.validateTenantSources(connections)}
return vs.Schema(tenant)
@staticmethod
def fromYaml(base, project_key_dir, connections, scheduler, merger, conf,
cached):
TenantParser.getSchema(connections)(conf)
tenant = model.Tenant(conf['name'])
tenant.unparsed_config = conf
unparsed_config = model.UnparsedTenantConfig()
tenant.config_repos, tenant.project_repos = \
TenantParser._loadTenantConfigRepos(
project_key_dir, connections, conf)
for source, repo in tenant.config_repos:
tenant.addConfigRepo(source, repo)
for source, repo in tenant.project_repos:
tenant.addProjectRepo(source, repo)
tenant.config_repos_config, tenant.project_repos_config = \
TenantParser._loadTenantInRepoLayouts(merger, connections,
tenant.config_repos,
tenant.project_repos,
cached)
unparsed_config.extend(tenant.config_repos_config)
unparsed_config.extend(tenant.project_repos_config)
tenant.layout = TenantParser._parseLayout(base, tenant,
unparsed_config,
scheduler,
connections)
tenant.layout.tenant = tenant
return tenant
@staticmethod
def _loadProjectKeys(project_key_dir, connection_name, project):
project.private_key_file = (
os.path.join(project_key_dir, connection_name,
project.name + '.pem'))
TenantParser._generateKeys(project)
TenantParser._loadKeys(project)
@staticmethod
def _generateKeys(project):
if os.path.isfile(project.private_key_file):
return
key_dir = os.path.dirname(project.private_key_file)
if not os.path.isdir(key_dir):
os.makedirs(key_dir)
TenantParser.log.info(
"Generating RSA keypair for project %s" % (project.name,)
)
private_key, public_key = encryption.generate_rsa_keypair()
pem_private_key = encryption.serialize_rsa_private_key(private_key)
# Dump keys to filesystem. We only save the private key
# because the public key can be constructed from it.
TenantParser.log.info(
"Saving RSA keypair for project %s to %s" % (
project.name, project.private_key_file)
)
with open(project.private_key_file, 'wb') as f:
f.write(pem_private_key)
@staticmethod
def _loadKeys(project):
# Check the key files specified are there
if not os.path.isfile(project.private_key_file):
raise Exception(
'Private key file {0} not found'.format(
project.private_key_file))
# Load keypair
with open(project.private_key_file, "rb") as f:
(project.private_key, project.public_key) = \
encryption.deserialize_rsa_keypair(f.read())
@staticmethod
def _loadTenantConfigRepos(project_key_dir, connections, conf_tenant):
config_repos = []
project_repos = []
for source_name, conf_source in conf_tenant.get('source', {}).items():
source = connections.getSource(source_name)
for conf_repo in conf_source.get('config-repos', []):
project = source.getProject(conf_repo)
TenantParser._loadProjectKeys(
project_key_dir, source_name, project)
config_repos.append((source, project))
for conf_repo in conf_source.get('project-repos', []):
project = source.getProject(conf_repo)
TenantParser._loadProjectKeys(
project_key_dir, source_name, project)
project_repos.append((source, project))
return config_repos, project_repos
@staticmethod
def _loadTenantInRepoLayouts(merger, connections, config_repos,
project_repos, cached):
config_repos_config = model.UnparsedTenantConfig()
project_repos_config = model.UnparsedTenantConfig()
jobs = []
for (source, project) in config_repos:
# If we have cached data (this is a reconfiguration) use it.
if cached and project.unparsed_config:
TenantParser.log.info(
"Loading previously parsed configuration from %s" %
(project,))
config_repos_config.extend(project.unparsed_config)
continue
# Otherwise, prepare an empty unparsed config object to
# hold cached data later.
project.unparsed_config = model.UnparsedTenantConfig()
# Get main config files. These files are permitted the
# full range of configuration.
url = source.getGitUrl(project)
job = merger.getFiles(project.name, url, 'master',
files=['zuul.yaml', '.zuul.yaml'])
job.source_context = model.SourceContext(project, 'master',
'', True)
jobs.append(job)
for (source, project) in project_repos:
# If we have cached data (this is a reconfiguration) use it.
if cached and project.unparsed_config:
TenantParser.log.info(
"Loading previously parsed configuration from %s" %
(project,))
project_repos_config.extend(project.unparsed_config)
continue
# Otherwise, prepare an empty unparsed config object to
# hold cached data later.
project.unparsed_config = model.UnparsedTenantConfig()
# Get in-project-repo config files which have a restricted
# set of options.
url = source.getGitUrl(project)
# For each branch in the repo, get the zuul.yaml for that
# branch. Remember the branch and then implicitly add a
# branch selector to each job there. This makes the
# in-repo configuration apply only to that branch.
for branch in source.getProjectBranches(project):
project.unparsed_branch_config[branch] = \
model.UnparsedTenantConfig()
job = merger.getFiles(project.name, url, branch,
files=['.zuul.yaml'])
job.source_context = model.SourceContext(
project, branch, '', False)
jobs.append(job)
for job in jobs:
# Note: this is an ordered list -- we wait for cat jobs to
# complete in the order they were executed which is the
# same order they were defined in the main config file.
# This is important for correct inheritance.
TenantParser.log.debug("Waiting for cat job %s" % (job,))
job.wait()
loaded = False
for fn in ['zuul.yaml', '.zuul.yaml']:
if job.files.get(fn):
# Don't load from more than one file in a repo-branch
if loaded:
TenantParser.log.warning(
"Multiple configuration files in %s" %
(job.source_context,))
continue
loaded = True
job.source_context.path = fn
TenantParser.log.info(
"Loading configuration from %s" %
(job.source_context,))
project = job.source_context.project
branch = job.source_context.branch
if job.source_context.trusted:
incdata = TenantParser._parseConfigRepoLayout(
job.files[fn], job.source_context)
config_repos_config.extend(incdata)
else:
incdata = TenantParser._parseProjectRepoLayout(
job.files[fn], job.source_context)
project_repos_config.extend(incdata)
project.unparsed_config.extend(incdata)
if branch in project.unparsed_branch_config:
project.unparsed_branch_config[branch].extend(incdata)
return config_repos_config, project_repos_config
@staticmethod
def _parseConfigRepoLayout(data, source_context):
# This is the top-level configuration for a tenant.
config = model.UnparsedTenantConfig()
config.extend(safe_load_yaml(data, source_context))
return config
@staticmethod
def _parseProjectRepoLayout(data, source_context):
# TODOv3(jeblair): this should implement some rules to protect
# aspects of the config that should not be changed in-repo
config = model.UnparsedTenantConfig()
config.extend(safe_load_yaml(data, source_context))
return config
@staticmethod
def _parseLayout(base, tenant, data, scheduler, connections):
layout = model.Layout()
for config_pipeline in data.pipelines:
layout.addPipeline(PipelineParser.fromYaml(layout, connections,
scheduler,
config_pipeline))
for config_nodeset in data.nodesets:
layout.addNodeSet(NodeSetParser.fromYaml(layout, config_nodeset))
for config_secret in data.secrets:
layout.addSecret(SecretParser.fromYaml(layout, config_secret))
for config_job in data.jobs:
layout.addJob(JobParser.fromYaml(tenant, layout, config_job))
for config_template in data.project_templates:
layout.addProjectTemplate(ProjectTemplateParser.fromYaml(
tenant, layout, config_template))
for config_project in data.projects.values():
layout.addProjectConfig(ProjectParser.fromYaml(
tenant, layout, config_project))
for pipeline in layout.pipelines.values():
pipeline.manager._postConfig(layout)
return layout
class ConfigLoader(object):
log = logging.getLogger("zuul.ConfigLoader")
def expandConfigPath(self, config_path):
if config_path:
config_path = os.path.expanduser(config_path)
if not os.path.exists(config_path):
raise Exception("Unable to read tenant config file at %s" %
config_path)
return config_path
def loadConfig(self, config_path, project_key_dir, scheduler, merger,
connections):
abide = model.Abide()
config_path = self.expandConfigPath(config_path)
with open(config_path) as config_file:
self.log.info("Loading configuration from %s" % (config_path,))
data = yaml.safe_load(config_file)
config = model.UnparsedAbideConfig()
config.extend(data)
base = os.path.dirname(os.path.realpath(config_path))
for conf_tenant in config.tenants:
# When performing a full reload, do not use cached data.
tenant = TenantParser.fromYaml(
base, project_key_dir, connections, scheduler, merger,
conf_tenant, cached=False)
abide.tenants[tenant.name] = tenant
return abide
def reloadTenant(self, config_path, project_key_dir, scheduler,
merger, connections, abide, tenant):
new_abide = model.Abide()
new_abide.tenants = abide.tenants.copy()
config_path = self.expandConfigPath(config_path)
base = os.path.dirname(os.path.realpath(config_path))
# When reloading a tenant only, use cached data if available.
new_tenant = TenantParser.fromYaml(
base, project_key_dir, connections, scheduler, merger,
tenant.unparsed_config, cached=True)
new_abide.tenants[tenant.name] = new_tenant
return new_abide
def _loadDynamicProjectData(self, config, source, project, files,
config_repo):
for branch in source.getProjectBranches(project):
data = None
if config_repo:
fn = 'zuul.yaml'
data = files.getFile(project.name, branch, fn)
if not data:
fn = '.zuul.yaml'
data = files.getFile(project.name, branch, fn)
if data:
source_context = model.SourceContext(project, branch,
fn, config_repo)
if config_repo:
incdata = TenantParser._parseConfigRepoLayout(
data, source_context)
else:
incdata = TenantParser._parseProjectRepoLayout(
data, source_context)
else:
incdata = project.unparsed_branch_config.get(branch)
if not incdata:
continue
config.extend(incdata)
def createDynamicLayout(self, tenant, files, include_config_repos=False):
if include_config_repos:
config = model.UnparsedTenantConfig()
for source, project in tenant.config_repos:
self._loadDynamicProjectData(config, source, project,
files, True)
else:
config = tenant.config_repos_config.copy()
for source, project in tenant.project_repos:
self._loadDynamicProjectData(config, source, project,
files, False)
layout = model.Layout()
# NOTE: the actual pipeline objects (complete with queues and
# enqueued items) are copied by reference here. This allows
# our shadow dynamic configuration to continue to interact
# with all the other changes, each of which may have their own
# version of reality. We do not support creating, updating,
# or deleting pipelines in dynamic layout changes.
layout.pipelines = tenant.layout.pipelines
for config_job in config.jobs:
layout.addJob(JobParser.fromYaml(tenant, layout, config_job))
for config_template in config.project_templates:
layout.addProjectTemplate(ProjectTemplateParser.fromYaml(
tenant, layout, config_template))
for config_project in config.projects.values():
layout.addProjectConfig(ProjectParser.fromYaml(
tenant, layout, config_project))
return layout