3ea4a7ca62
Add support for Trove commands cluster-grow and cluster-shrink. Added the grow and shrink actions to the clusters list table. The grow and shrink actions are only available for MongoDB and Redis clusters. Added the grow panel table to list the new instances to be added to the cluster. There is a table action Add Instance where the instance details are specified then added to the new instances table. A Remove Instance table and row action is available to remove any instances from the table. A Grow Cluster table action will add the instances to the instances in the table to the cluster. Removed the add shard action as it is now deprecated and is replaced by the grow action. Added a cluster manager helper to keep track of the newly added instances in the grow panel. Added the shrink panel table that lists the instances belonging to the cluster in a table. The selected instance(s) can then be removed from the cluster with the shrink command. Added the cluster_grow and cluster_shrink commands to the api. Change-Id: I05dbc73282b333e3ed8cfd4cdbda673ec86f57fd Co-Authored-By: Duk Loi <duk@tesora.com> Implements: blueprint trove-support-cluster-grow-shrink
253 lines
9.2 KiB
Python
253 lines
9.2 KiB
Python
# Copyright (c) 2014 eBay Software Foundation
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# Copyright 2015 HP Software, LLC
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Views for managing database clusters.
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"""
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from collections import OrderedDict
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import logging
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from django.core.urlresolvers import reverse
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from django.core.urlresolvers import reverse_lazy
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from django.utils.translation import ugettext_lazy as _
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import six
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from horizon import exceptions
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from horizon import forms as horizon_forms
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from horizon import tables as horizon_tables
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from horizon import tabs as horizon_tabs
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from horizon.utils import memoized
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from trove_dashboard import api
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from trove_dashboard.content.database_clusters \
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import cluster_manager
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from trove_dashboard.content.database_clusters import forms
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from trove_dashboard.content.database_clusters import tables
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from trove_dashboard.content.database_clusters import tabs
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LOG = logging.getLogger(__name__)
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class IndexView(horizon_tables.DataTableView):
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table_class = tables.ClustersTable
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template_name = 'project/database_clusters/index.html'
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def has_more_data(self, table):
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return self._more
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@memoized.memoized_method
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def get_flavors(self):
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try:
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flavors = api.trove.flavor_list(self.request)
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except Exception:
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flavors = []
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msg = _('Unable to retrieve database size information.')
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exceptions.handle(self.request, msg)
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return OrderedDict((six.text_type(flavor.id), flavor)
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for flavor in flavors)
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def _extra_data(self, cluster):
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try:
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cluster_flavor = cluster.instances[0]["flavor"]["id"]
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flavors = self.get_flavors()
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flavor = flavors.get(cluster_flavor)
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if flavor is not None:
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cluster.full_flavor = flavor
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except Exception:
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# ignore any errors and just return cluster unaltered
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pass
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return cluster
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def get_data(self):
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marker = self.request.GET.get(
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tables.ClustersTable._meta.pagination_param)
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# Gather our clusters
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try:
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clusters = api.trove.cluster_list(self.request, marker=marker)
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self._more = clusters.next or False
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except Exception:
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self._more = False
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clusters = []
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msg = _('Unable to retrieve database clusters.')
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exceptions.handle(self.request, msg)
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map(self._extra_data, clusters)
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return clusters
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class LaunchClusterView(horizon_forms.ModalFormView):
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form_class = forms.LaunchForm
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template_name = 'project/database_clusters/launch.html'
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success_url = reverse_lazy('horizon:project:database_clusters:index')
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class DetailView(horizon_tabs.TabbedTableView):
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tab_group_class = tabs.ClusterDetailTabs
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template_name = 'horizon/common/_detail.html'
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page_title = "{{ cluster.name|default:cluster.id }}"
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def get_context_data(self, **kwargs):
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context = super(DetailView, self).get_context_data(**kwargs)
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context["url"] = reverse('horizon:project:database_clusters:index')
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context["cluster"] = self.get_data()
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return context
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@memoized.memoized_method
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def get_data(self):
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try:
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cluster_id = self.kwargs['cluster_id']
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cluster = api.trove.cluster_get(self.request, cluster_id)
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except Exception:
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redirect = reverse('horizon:project:database_clusters:index')
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msg = _('Unable to retrieve details '
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'for database cluster: %s') % cluster_id
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exceptions.handle(self.request, msg, redirect=redirect)
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try:
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cluster.full_flavor = api.trove.flavor_get(
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self.request, cluster.instances[0]["flavor"]["id"])
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except Exception:
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LOG.error('Unable to retrieve flavor details'
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' for database cluster: %s' % cluster_id)
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cluster.num_instances = len(cluster.instances)
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# Todo(saurabhs) Set mgmt_url to dispaly Mgmt Console URL on
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# cluster details page
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# for instance in cluster.instances:
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# if instance['type'] == "master":
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# cluster.mgmt_url = "https://%s:5450/webui" % instance['ip'][0]
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return cluster
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def get_tabs(self, request, *args, **kwargs):
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cluster = self.get_data()
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return self.tab_group_class(request, cluster=cluster, **kwargs)
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class ClusterGrowView(horizon_tables.DataTableView):
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table_class = tables.ClusterGrowInstancesTable
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template_name = 'project/database_clusters/cluster_grow_details.html'
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page_title = _("Grow Cluster: {{cluster_name}}")
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def get_data(self):
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manager = cluster_manager.get(self.kwargs['cluster_id'])
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return manager.get_instances()
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def get_context_data(self, **kwargs):
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context = super(ClusterGrowView, self).get_context_data(**kwargs)
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context['cluster_id'] = self.kwargs['cluster_id']
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cluster = self.get_cluster(self.kwargs['cluster_id'])
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context['cluster_name'] = cluster.name
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return context
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@memoized.memoized_method
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def get_cluster(self, cluster_id):
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try:
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return api.trove.cluster_get(self.request, cluster_id)
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except Exception:
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redirect = reverse("horizon:project:database_clusters:index")
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msg = _('Unable to retrieve cluster details.')
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exceptions.handle(self.request, msg, redirect=redirect)
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class ClusterAddInstancesView(horizon_forms.ModalFormView):
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form_class = forms.ClusterAddInstanceForm
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form_id = "cluster_add_instances_form"
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modal_header = _("Add Instance")
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modal_id = "cluster_add_instances_modal"
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template_name = "project/database_clusters/add_instance.html"
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submit_label = _("Add")
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submit_url = "horizon:project:database_clusters:add_instance"
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success_url = "horizon:project:database_clusters:cluster_grow_details"
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cancel_url = "horizon:project:database_clusters:cluster_grow_details"
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page_title = _("Add Instance")
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def get_context_data(self, **kwargs):
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context = (super(ClusterAddInstancesView, self)
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.get_context_data(**kwargs))
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context['cluster_id'] = self.kwargs['cluster_id']
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args = (self.kwargs['cluster_id'],)
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context['submit_url'] = reverse(self.submit_url, args=args)
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return context
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def get_success_url(self):
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return reverse(self.success_url, args=[self.kwargs['cluster_id']])
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def get_cancel_url(self):
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return reverse(self.cancel_url, args=[self.kwargs['cluster_id']])
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class ClusterInstance(object):
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def __init__(self, id, name, status):
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self.id = id
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self.name = name
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self.status = status
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class ClusterShrinkView(horizon_tables.DataTableView):
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table_class = tables.ClusterShrinkInstancesTable
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template_name = "project/database_clusters/cluster_shrink_details.html"
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page_title = _("Shrink Cluster: {{cluster_name}}")
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@memoized.memoized_method
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def get_cluster(self, cluster_id):
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try:
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return api.trove.cluster_get(self.request, cluster_id)
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except Exception:
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redirect = reverse("horizon:project:database_clusters:index")
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msg = _('Unable to retrieve cluster details.')
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exceptions.handle(self.request, msg, redirect=redirect)
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def get_data(self):
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cluster = self.get_cluster(self.kwargs['cluster_id'])
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instances = [ClusterInstance(i['id'], i['name'], i['status'])
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for i in cluster.instances]
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return instances
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def get_context_data(self, **kwargs):
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context = super(ClusterShrinkView, self).get_context_data(**kwargs)
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context['cluster_id'] = self.kwargs['cluster_id']
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cluster = self.get_cluster(self.kwargs['cluster_id'])
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context['cluster_name'] = cluster.name
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return context
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class ResetPasswordView(horizon_forms.ModalFormView):
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form_class = forms.ResetPasswordForm
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template_name = 'project/database_clusters/reset_password.html'
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success_url = reverse_lazy('horizon:project:database_clusters:index')
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page_title = _("Reset Root Password")
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@memoized.memoized_method
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def get_object(self, *args, **kwargs):
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cluster_id = self.kwargs['cluster_id']
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try:
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return api.trove.cluster_get(self.request, cluster_id)
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except Exception:
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msg = _('Unable to retrieve cluster details.')
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redirect = reverse('horizon:project:database_clusters:index')
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exceptions.handle(self.request, msg, redirect=redirect)
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def get_context_data(self, **kwargs):
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context = super(ResetPasswordView, self).get_context_data(**kwargs)
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context['cluster_id'] = self.kwargs['cluster_id']
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return context
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def get_initial(self):
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return {'cluster_id': self.kwargs['cluster_id']}
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