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##############################################################################
# Copyright (c) 2017 Huawei Technologies Co.,Ltd.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
from __future__ import absolute_import
from __future__ import print_function
from yardstick.common import utils
from yardstick.common import kubernetes_utils as k8s_utils
class KubernetesObject(object):
def __init__(self, name, **kwargs):
super(KubernetesObject, self).__init__()
self.name = name
self.image = kwargs.get('image', 'openretriever/yardstick')
self.command = [kwargs.get('command', '/bin/bash')]
self.args = kwargs.get('args', [])
self.ssh_key = kwargs.get('ssh_key', 'yardstick_key')
self.node_selector = kwargs.get('nodeSelector', {})
self.volumes = []
self.template = {
"apiVersion": "v1",
"kind": "ReplicationController",
"metadata": {
"name": ""
},
"spec": {
"replicas": 1,
"template": {
"metadata": {
"labels": {
"app": name
}
},
"spec": {
"containers": [],
"volumes": [],
"nodeSelector": {}
}
}
}
}
self._change_value_according_name(name)
self._add_containers()
self._add_node_selector()
self._add_ssh_key_volume()
self._add_volumes()
def get_template(self):
return self.template
def _change_value_according_name(self, name):
utils.set_dict_value(self.template, 'metadata.name', name)
utils.set_dict_value(self.template,
'spec.template.metadata.labels.app',
name)
def _add_containers(self):
containers = [self._add_container()]
utils.set_dict_value(self.template,
'spec.template.spec.containers',
containers)
def _add_container(self):
container_name = '{}-container'.format(self.name)
ssh_key_mount_path = "/root/.ssh/"
container = {
"args": self.args,
"command": self.command,
"image": self.image,
"name": container_name,
"volumeMounts": [
{
"mountPath": ssh_key_mount_path,
"name": self.ssh_key
}
]
}
return container
def _add_node_selector(self):
utils.set_dict_value(self.template,
'spec.template.spec.nodeSelector',
self.node_selector)
def _add_volumes(self):
utils.set_dict_value(self.template,
'spec.template.spec.volumes',
self.volumes)
def _add_volume(self, volume):
self.volumes.append(volume)
def _add_ssh_key_volume(self):
key_volume = {
"configMap": {
"name": self.ssh_key
},
"name": self.ssh_key
}
self._add_volume(key_volume)
class ServiceObject(object):
def __init__(self, name):
self.name = '{}-service'.format(name)
self.template = {
'metadata': {
'name': '{}-service'.format(name)
},
'spec': {
'type': 'NodePort',
'ports': [
{
'port': 22,
'protocol': 'TCP'
}
],
'selector': {
'app': name
}
}
}
def create(self):
k8s_utils.create_service(self.template)
def delete(self):
k8s_utils.delete_service(self.name)
class KubernetesTemplate(object):
def __init__(self, name, template_cfg):
self.name = name
self.ssh_key = '{}-key'.format(name)
self.rcs = [self._get_rc_name(rc) for rc in template_cfg]
self.k8s_objs = [KubernetesObject(self._get_rc_name(rc),
ssh_key=self.ssh_key,
**cfg)
for rc, cfg in template_cfg.items()]
self.service_objs = [ServiceObject(s) for s in self.rcs]
self.pods = []
def _get_rc_name(self, rc_name):
return '{}-{}'.format(rc_name, self.name)
def get_rc_pods(self):
resp = k8s_utils.get_pod_list()
self.pods = [p.metadata.name for p in resp.items for s in self.rcs
if p.metadata.name.startswith(s)]
return self.pods
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