vmpooler/spec/helpers.rb
kirby@puppetlabs.com 86e92de4cf (POOLER-158) Add capability to provision VMs on demand
This change adds a capability to vmpooler to provision instances on
demand. Without this change vmpooler only supports retrieving machines
from pre-provisioned pools.

Additionally, this change refactors redis interactions to reduce round
trips to redis. Specifically, multi and pipelined redis commands are
added where possible to reduce the number of times we are calling redis.

To support the redis refactor the redis interaction has changed to
leveraging a connection pool. In addition to offering multiple
connections for pool manager to use, the redis interactions in pool
manager are now thread safe.

Ready TTL is now a global parameter that can be set as a default for all
pools. A default of 0 has been removed, because this is an unreasonable
default behavior, which would leave a provisioned instance in the pool
indefinitely.

Pool empty messages have been removed when the pool size is set to 0.
Without this change, when a pool was set to a size of 0 the API and pool
manager would both show that a pool is empty.
2020-05-15 14:12:36 -07:00

154 lines
4.7 KiB
Ruby

require 'mock_redis'
def redis
unless @redis
@redis = MockRedis.new
end
@redis
end
# Mock an object which represents a Logger. This stops the proliferation
# of allow(logger).to .... expectations in tests.
class MockLogger
def log(_level, string)
end
end
def expect_json(ok = true, http = 200)
expect(last_response.header['Content-Type']).to eq('application/json')
if (ok == true) then
expect(JSON.parse(last_response.body)['ok']).to eq(true)
else
expect(JSON.parse(last_response.body)['ok']).to eq(false)
end
expect(last_response.status).to eq(http)
end
def create_token(token, user, timestamp)
redis.hset("vmpooler__token__#{token}", 'user', user)
redis.hset("vmpooler__token__#{token}", 'created', timestamp)
end
def get_token_data(token)
redis.hgetall("vmpooler__token__#{token}")
end
def token_exists?(token)
result = get_token_data
result && !result.empty?
end
def create_ready_vm(template, name, redis, token = nil)
create_vm(name, redis, token)
redis.sadd("vmpooler__ready__#{template}", name)
redis.hset("vmpooler__vm__#{name}", "template", template)
end
def create_running_vm(template, name, redis, token = nil, user = nil)
create_vm(name, redis, token, user)
redis.sadd("vmpooler__running__#{template}", name)
redis.hset("vmpooler__vm__#{name}", 'template', template)
redis.hset("vmpooler__vm__#{name}", 'checkout', Time.now)
redis.hset("vmpooler__vm__#{name}", 'host', 'host1')
end
def create_pending_vm(template, name, redis, token = nil)
create_vm(name, redis, token)
redis.sadd("vmpooler__pending__#{template}", name)
redis.hset("vmpooler__vm__#{name}", "template", template)
end
def create_vm(name, redis, token = nil, user = nil)
redis.hset("vmpooler__vm__#{name}", 'checkout', Time.now)
redis.hset("vmpooler__vm__#{name}", 'clone', Time.now)
redis.hset("vmpooler__vm__#{name}", 'token:token', token) if token
redis.hset("vmpooler__vm__#{name}", 'token:user', user) if user
end
def create_completed_vm(name, pool, redis, active = false)
redis.sadd("vmpooler__completed__#{pool}", name)
redis.hset("vmpooler__vm__#{name}", 'checkout', Time.now)
redis.hset("vmpooler__active__#{pool}", name, Time.now) if active
end
def create_discovered_vm(name, pool, redis)
redis.sadd("vmpooler__discovered__#{pool}", name)
end
def create_migrating_vm(name, pool, redis)
redis.hset("vmpooler__vm__#{name}", 'checkout', Time.now)
redis.sadd("vmpooler__migrating__#{pool}", name)
end
def create_tag(vm, tag_name, tag_value, redis)
redis.hset("vmpooler__vm__#{vm}", "tag:#{tag_name}", tag_value)
end
def add_vm_to_migration_set(name, redis)
redis.sadd('vmpooler__migration', name)
end
def fetch_vm(vm)
redis.hgetall("vmpooler__vm__#{vm}")
end
def set_vm_data(vm, key, value, redis)
redis.hset("vmpooler__vm__#{vm}", key, value)
end
def snapshot_revert_vm(vm, snapshot = '12345678901234567890123456789012', redis)
redis.sadd('vmpooler__tasks__snapshot-revert', "#{vm}:#{snapshot}")
redis.hset("vmpooler__vm__#{vm}", "snapshot:#{snapshot}", "1")
end
def snapshot_vm(vm, snapshot = '12345678901234567890123456789012', redis)
redis.sadd('vmpooler__tasks__snapshot', "#{vm}:#{snapshot}")
redis.hset("vmpooler__vm__#{vm}", "snapshot:#{snapshot}", "1")
end
def disk_task_vm(vm, disk_size = '10', redis)
redis.sadd('vmpooler__tasks__disk', "#{vm}:#{disk_size}")
end
def has_vm_snapshot?(vm, redis)
redis.smembers('vmpooler__tasks__snapshot').any? do |snapshot|
instance, _sha = snapshot.split(':')
vm == instance
end
end
def vm_reverted_to_snapshot?(vm, redis, snapshot = nil)
redis.smembers('vmpooler__tasks__snapshot-revert').any? do |action|
instance, sha = action.split(':')
instance == vm and (snapshot ? (sha == snapshot) : true)
end
end
def pool_has_ready_vm?(pool, vm, redis)
!!redis.sismember('vmpooler__ready__' + pool, vm)
end
def create_ondemand_request_for_test(request_id, score, platforms_string, redis, user = nil, token = nil)
redis.zadd('vmpooler__provisioning__request', score, request_id)
redis.hset("vmpooler__odrequest__#{request_id}", 'requested', platforms_string)
redis.hset("vmpooler__odrequest__#{request_id}", 'token:token', token) if token
redis.hset("vmpooler__odrequest__#{request_id}", 'token:user', user) if user
end
def set_ondemand_request_status(request_id, status, redis)
redis.hset("vmpooler__odrequest__#{request_id}", 'status', status)
end
def create_ondemand_vm(vmname, request_id, pool, pool_alias, redis)
redis.sadd("vmpooler__#{request_id}__#{pool_alias}__#{pool}", vmname)
end
def create_ondemand_creationtask(request_string, score, redis)
redis.zadd('vmpooler__odcreate__task', score, request_string)
end
def create_ondemand_processing(request_id, score, redis)
redis.zadd('vmpooler__provisioning__processing', score, request_id)
end