def update_release(self, chart, namespace, dry_run=False,
name=None, values=None, wait=False,
disable_hooks=False, recreate=False,
reset_values=False, reuse_values=False,
force=False, description="", install=False):
"""
Update a Helm Release
"""
stub = ReleaseServiceStub(self._channel)
if install:
if not namespace:
namespace = DEFAULT_NAMESPACE
try:
release_status = self.get_release_status(name)
except grpc.RpcError as rpc_error_call:
if not rpc_error_call.details() == "getting deployed release \"{}\": release: \"{}\" not found".format(name, name):
raise rpc_error_call
# The release doesn't exist - it's time to install
self._logger.info(
"Release %s does not exist. Installing it now.", name)
return self.install_release(chart, namespace, dry_run,
name, values, wait)
if release_status.namespace != namespace:
self._logger.warn("Namespace %s doesn't match with previous. Release will be deployed to %s",
release_status.namespace, namespace)
values = Config(raw=yaml.safe_dump(values or {}))
release_request = UpdateReleaseRequest(
chart=chart,
dry_run=dry_run,
disable_hooks=disable_hooks,
values=values,
name=name or '',
wait=wait,
recreate=recreate,
reset_values=reset_values,
reuse_values=reuse_values,
force=force,
description=description)
return stub.UpdateRelease(release_request, self._timeout,
metadata=self.metadata)
def get_values(self):
'''
Return the chart (default) values
'''
# create config object representing unmarshaled values.yaml
if os.path.exists(os.path.join(self.source_directory, 'values.yaml')):
with open(os.path.join(self.source_directory,
'values.yaml')) as fd:
raw_values = fd.read()
else:
self._logger.warn("No values.yaml in %s, using empty values",
self.source_directory)
raw_values = ''
return Config(raw=raw_values)
def get_values(self):
'''
Return the chart (default) values
获取chart的values数据
Args:
Returns:
返回tiller所需的values对象
'''
# create config object representing unmarshaled values.yaml
if os.path.exists(os.path.join(self.source_directory, 'values.yaml')):
raw_values = open(
os.path.join(self.source_directory, 'values.yaml')).read()
else:
raw_values = ''
return Config(raw=raw_values)
def update_release(self,
chart,
name,
dry_run=False,
disable_hooks=False,
values=None,
recreate=False,
reset_values=False,
reuse_values=False,
force=False,
timeout=REQUEST_TIMEOUT):
"""升级release
Args:
:params - chart - chart 元数据,由函数生成
:params - name - release name
:params - dry_run - simulate an upgrade
:params - values - 额外的values,用来进行value值替换
:params - disable_hooks - prevent hooks from running during rollback(bool)
:params - recreate - performs pods restart for the resource if applicable(bool)
:params - reset_values - when upgrading, reset the values to the ones built into the chart(bool)
:params - reuse_values - when upgrading, reuse the last release's values and merge in any overrides from the command line via --set and -f. If '--reset-values' is specified, this is ignored.(bool)
:params - force - 是否强制升级(bool)
Returns:
返回升级release的grpc响应对象
"""
values = Config(raw=yaml.safe_dump(values or {}))
# build update release request
stub = ReleaseServiceStub(self.channel)
release_request = UpdateReleaseRequest(chart=chart,
dry_run=dry_run,
recreate=recreate,
reset_values=reset_values,
reuse_values=reuse_values,
force=force,
disable_hooks=disable_hooks,
values=values,
timeout=timeout,
name=name)
return stub.UpdateRelease(release_request,
self.timeout,
metadata=self.metadata)
def install_release(self, chart, namespace, dry_run=False,
name=None, values=None):
"""
Create a Helm Release
"""
values = Config(raw=yaml.safe_dump(values or {}))
# build release install request
stub = ReleaseServiceStub(self.channel)
release_request = InstallReleaseRequest(
chart=chart,
dry_run=dry_run,
values=values,
name=name or '',
namespace=namespace)
return stub.InstallRelease(release_request,
self.timeout,
metadata=self.metadata)
def install_release(
self,
chart,
namespace,
dry_run=False,
name=None,
values=None,
wait=False,
disable_hooks=False,
reuse_name=False,
disable_crd_hook=False,
description="",
):
"""
Create a Helm Release
"""
if values:
f = io.StringIO()
yaml.dump(values, f)
f.seek(0)
raw = f.read()
else:
raw = ""
values = Config(raw=raw)
stub = ReleaseServiceStub(self._channel)
release_request = InstallReleaseRequest(
chart=chart,
dry_run=dry_run,
values=values,
name=name or "",
namespace=namespace,
wait=wait,
disable_hooks=disable_hooks,
reuse_name=reuse_name,
disable_crd_hook=disable_crd_hook,
description=description,
)
return stub.InstallRelease(release_request,
self._timeout,
metadata=self.metadata)
def update_release(self, chart, dry_run, namespace, name=None,
pre_actions=None, post_actions=None,
disable_hooks=False, values=None):
'''
Update a Helm Release
'''
values = Config(raw=yaml.safe_dump(values or {}))
self._pre_update_actions(pre_actions, namespace)
# build release install request
stub = ReleaseServiceStub(self.channel)
release_request = UpdateReleaseRequest(
chart=chart,
dry_run=dry_run,
disable_hooks=disable_hooks,
values=values,
name=name or '')
stub.UpdateRelease(release_request, self.timeout,
metadata=self.metadata)
self._post_update_actions(post_actions, namespace)
def install_release(self, chart, namespace, dry_run=False,
name=None, values=None, wait=False,
disable_hooks=False, reuse_name=False,
disable_crd_hook=False, overrides=[], description="", chartbuilder=None):
"""
Prepare overrides, note it only supports one file at the moment
"""
standard_values = {}
if overrides is not None and chartbuilder is not None:
standard_values = yaml.safe_load(chartbuilder.get_values().raw)
for file in overrides:
standard_values.update(yaml.safe_load(file.value))
"""
Create a Helm Release
"""
# now this is where it gets tricky
# since the overrides are appended 'left to right'
# the later mappings override the standard values in `values.yaml`
# the standard helm client does something similar but this 'works' (and is a kludge)
values = Config(raw=yaml.safe_dump(standard_values))
stub = ReleaseServiceStub(self._channel)
release_request = InstallReleaseRequest(
chart=chart,
dry_run=dry_run,
values=values,
name=name or '',
namespace=namespace,
wait=wait,
disable_hooks=disable_hooks,
reuse_name=reuse_name,
disable_crd_hook=disable_crd_hook,
description=description)
return stub.InstallRelease(release_request,
self._timeout,
metadata=self.metadata)
def update_release(self,
chart,
release,
namespace,
pre_actions=None,
post_actions=None,
disable_hooks=False,
values=None,
wait=False,
timeout=None,
force=False,
recreate_pods=False):
'''
Update a Helm Release
'''
timeout = self._check_timeout(wait, timeout)
LOG.info(
'Helm update release%s: wait=%s, timeout=%s, force=%s, '
'recreate_pods=%s', (' (dry run)' if self.dry_run else ''), wait,
timeout, force, recreate_pods)
if values is None:
values = Config(raw='')
else:
values = Config(raw=values)
self._pre_update_actions(pre_actions, release, namespace, chart,
disable_hooks, values, timeout)
update_msg = None
# build release install request
try:
stub = ReleaseServiceStub(self.channel)
release_request = UpdateReleaseRequest(
chart=chart,
dry_run=self.dry_run,
disable_hooks=disable_hooks,
values=values,
name=release,
wait=wait,
timeout=timeout,
force=force,
recreate=recreate_pods)
update_msg = stub.UpdateRelease(
release_request,
timeout + GRPC_EPSILON,
metadata=self.metadata)
except Exception:
LOG.exception('Error while updating release %s', release)
status = self.get_release_status(release)
raise ex.ReleaseException(release, status, 'Upgrade')
tiller_result = TillerResult(
update_msg.release.name, update_msg.release.namespace,
update_msg.release.info.status.Code.Name(
update_msg.release.info.status.code),
update_msg.release.info.Description, update_msg.release.version)
return tiller_result
def _get_values(self):
return Config(
raw=self.storage.read("{}/values.yaml".format(self.chart_name)))