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|
# frozen_string_literal: true
require_relative 'test_helper'
require 'vcr'
# creation of google's example of guest book
class CreateGuestbookGo < Minitest::Test
def test_create_guestbook_entities
VCR.configure do |c|
c.cassette_library_dir = 'test/cassettes'
c.hook_into(:webmock)
end
# WebMock.allow_net_connect!
VCR.use_cassette('kubernetes_guestbook') do # , record: :new_episodes) do
client = Kubeclient::Client.new('http://10.35.0.23:8080/api/', 'v1')
testing_ns = Kubeclient::Resource.new
testing_ns.metadata = {}
testing_ns.metadata.name = 'kubeclient-ns'
# delete in case they existed before so creation can be tested
delete_namespace(client, testing_ns.metadata.name)
delete_services(
client, testing_ns.metadata.name,
['guestbook', 'redis-master', 'redis-slave']
)
delete_replication_controllers(
client, testing_ns.metadata.name,
['guestbook', 'redis-master', 'redis-slave']
)
client.create_namespace(testing_ns)
services = create_services(client, testing_ns.metadata.name)
replicators = create_replication_controllers(client, testing_ns.metadata.name)
get_namespaces(client)
get_services(client, testing_ns.metadata.name)
get_replication_controllers(client, testing_ns.metadata.name)
delete_services(client, testing_ns.metadata.name, services)
delete_replication_controllers(client, testing_ns.metadata.name, replicators)
client.delete_namespace(testing_ns.metadata.name)
end
ensure
VCR.turn_off!
end
def delete_namespace(client, namespace_name)
client.delete_namespace(namespace_name)
rescue Kubeclient::ResourceNotFoundError => exception
assert_equal(404, exception.error_code)
end
def get_namespaces(client)
namespaces = client.get_namespaces
assert(true, namespaces.size > 2)
end
def get_services(client, ns)
retrieved_services = client.get_services(namespace: ns)
assert_equal(3, retrieved_services.size)
end
def get_replication_controllers(client, ns)
retrieved_replicators = client.get_replication_controllers(namespace: ns)
assert_equal(3, retrieved_replicators.size)
end
def create_services(client, ns)
guestbook_service = client.create_service(guestbook_service(ns))
redis_service = client.create_service(redis_service(ns))
redis_slave_service = client.create_service(redis_slave_service(ns))
[guestbook_service, redis_service, redis_slave_service]
end
def create_replication_controllers(client, namespace)
rc = client.create_replication_controller(guestbook_rc(namespace))
rc2 = client.create_replication_controller(redis_master_rc(namespace))
rc3 = client.create_replication_controller(redis_slave_rc(namespace))
[rc, rc2, rc3]
end
def delete_services(client, namespace, services)
# if the entity is not found, no need to fail the test
services.each do |service|
begin
if service.instance_of?(Kubeclient::Resource)
client.delete_service(service.metadata.name, namespace)
else
# it's just a string - service name
client.delete_service(service, namespace)
end
rescue Kubeclient::ResourceNotFoundError => exception
assert_equal(404, exception.error_code)
end
end
end
def delete_replication_controllers(client, namespace, replication_controllers)
# if the entity is not found, no need to fail the test
replication_controllers.each do |rc|
begin
if rc.instance_of?(Kubeclient::Resource)
client.delete_replication_controller(rc.metadata.name, namespace)
else
# it's just a string - rc name
client.delete_replication_controller(rc, namespace)
end
rescue Kubeclient::ResourceNotFoundError => exception
assert_equal(404, exception.error_code)
end
end
end
private
def construct_base_rc(namespace)
rc = Kubeclient::Resource.new
rc.metadata = {}
rc.metadata.namespace = namespace
rc.metadata.labels = {}
rc.spec = {}
rc.spec.selector = {}
rc.spec.template = {}
rc.spec.template.metadata = {}
rc.spec.template.spec = {}
rc.spec.template.metadata.labels = {}
rc
end
def redis_master_rc(namespace)
rc = construct_base_rc(namespace)
rc.metadata.name = 'redis-master'
rc.metadata.labels.app = 'redis'
rc.metadata.labels.role = 'master'
rc.spec.replicas = 1
rc.spec.selector.app = 'redis'
rc.spec.selector.role = 'master'
rc.spec.template.metadata.labels.app = 'redis'
rc.spec.template.metadata.labels.role = 'master'
rc.spec.template.spec.containers = [{
'name' => 'redis-master',
'image' => 'redis',
'ports' => [{
'name' => 'redis-server',
'containerPort' => 6379
}]
}]
rc
end
def redis_slave_rc(namespace)
rc = construct_base_rc(namespace)
rc.metadata.name = 'redis-slave'
rc.metadata.labels.app = 'redis'
rc.metadata.labels.role = 'slave'
rc.spec.replicas = 2
rc.spec.selector.app = 'redis'
rc.spec.selector.role = 'slave'
rc.spec.template.metadata.labels.app = 'redis'
rc.spec.template.metadata.labels.role = 'slave'
rc.spec.template.spec.containers = [{
'name' => 'redis-slave',
'image' => 'kubernetes/redis-slave:v2',
'ports' => [{
'name' => 'redis-server',
'containerPort' => 6379
}]
}]
rc
end
def guestbook_rc(namespace)
rc = construct_base_rc(namespace)
rc.metadata.name = 'guestbook'
rc.metadata.labels.app = 'guestbook'
rc.metadata.labels.role = 'slave'
rc.spec.replicas = 3
rc.spec.selector.app = 'guestbook'
rc.spec.template.metadata.labels.app = 'guestbook'
rc.spec.template.spec.containers = [
{
'name' => 'guestbook',
'image' => 'kubernetes/guestbook:v2',
'ports' => [
{
'name' => 'http-server',
'containerPort' => 3000
}
]
}
]
rc
end
def base_service(namespace)
our_service = Kubeclient::Resource.new
our_service.metadata = {}
our_service.metadata.namespace = namespace
our_service.metadata.labels = {}
our_service.spec = {}
our_service.spec.selector = {}
our_service
end
def redis_slave_service(namespace)
our_service = base_service(namespace)
our_service.metadata.name = 'redis-slave'
our_service.metadata.labels.app = 'redis'
our_service.metadata.labels.role = 'slave'
our_service.spec.ports = [{ 'port' => 6379, 'targetPort' => 'redis-server' }]
our_service.spec.selector.app = 'redis'
our_service.spec.selector.role = 'slave'
our_service
end
def redis_service(namespace)
our_service = base_service(namespace)
our_service.metadata.name = 'redis-master'
our_service.metadata.labels.app = 'redis'
our_service.metadata.labels.role = 'master'
our_service.spec.ports = [{ 'port' => 6379, 'targetPort' => 'redis-server' }]
our_service.spec.selector.app = 'redis'
our_service.spec.selector.role = 'master'
our_service
end
def guestbook_service(namespace)
our_service = base_service(namespace)
our_service.metadata.name = 'guestbook'
our_service.metadata.labels.name = 'guestbook'
our_service.spec.ports = [{ 'port' => 3000, 'targetPort' => 'http-server' }]
our_service.spec.selector.app = 'guestbook'
our_service.type = 'LoadBalancer'
our_service
end
end
|
