Support China domain in lambda cloudwatch logs url

[charlesverdad]

The AWSLambdaIntegration adds the cloudwatch URL in the context but the domain is hardcoded and doesn't work for China regions.

[untitaker]

Is that the only region where the domain is different?

[charlesverdad]

Is that the only region where the domain is different?

Ah good question. It looks like AWS has three partitions:

aws - aws.amazon.com
aws-cn - amazonaws.cn
aws-us-gov - amazonaws-us-gov.com

I don't think we should worry about the aws-us-gov partition. WDYT?

[untitaker]

ok this makes sense. there are some failing testcases and lint jobs. Could you check them locally? CONTRIBUTING.md should contain enough info to get started.

[charlesverdad]

@untitaker I'm not sure why the tests are failing for python >= 3.7 for my PR, afaik my changes should not have affected this.

tests/integrations/spark/test_spark.py FF.......                         [100%]

=================================== FAILURES ===================================
___________________________ test_set_app_properties ____________________________
tests/integrations/spark/test_spark.py:25: in test_set_app_properties
    spark_context = SparkContext(appName="Testing123")
.tox/py3.7-spark/lib/python3.7/site-packages/pyspark/context.py:136: in __init__
    conf, jsc, profiler_cls)
.tox/py3.7-spark/lib/python3.7/site-packages/pyspark/context.py:198: in _do_init
    self._jsc = jsc or self._initialize_context(self._conf._jconf)
.tox/py3.7-spark/lib/python3.7/site-packages/pyspark/context.py:306: in _initialize_context
    return self._jvm.JavaSparkContext(jconf)
.tox/py3.7-spark/lib/python3.7/site-packages/py4j/java_gateway.py:1525: in __call__
    answer, self._gateway_client, None, self._fqn)
.tox/py3.7-spark/lib/python3.7/site-packages/py4j/protocol.py:328: in get_return_value
    format(target_id, ".", name), value)
E   py4j.protocol.Py4JJavaError: An error occurred while calling None.org.apache.spark.api.java.JavaSparkContext.
E   : java.net.BindException: Cannot assign requested address: Service 'sparkDriver' failed after 16 retries (on a random free port)! Consider explicitly setting the appropriate binding address for the service 'sparkDriver' (for example spark.driver.bindAddress for SparkDriver) to the correct binding address.
E   	at sun.nio.ch.Net.bind0(Native Method)
E   	at sun.nio.ch.Net.bind(Net.java:461)
E   	at sun.nio.ch.Net.bind(Net.java:453)
E   	at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:222)
E   	at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:128)
E   	at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:558)
E   	at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1283)
E   	at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:501)
E   	at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:486)
E   	at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:989)
E   	at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:254)
E   	at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:364)
E   	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163)
E   	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:403)
E   	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:463)
E   	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
E   	at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:138)
E   	at java.lang.Thread.run(Thread.java:748)
----------------------------- Captured stderr call -----------------------------
21/04/15 06:57:51 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties
Setting default log level to "WARN".
To adjust logging level use sc.setLogLevel(newLevel). For SparkR, use setLogLevel(newLevel).
21/04/15 06:57:52 WARN Utils: Service 'sparkDriver' could not bind on a random free port. You may check whether configuring an appropriate binding address.

and

tests/integrations/django/asgi/test_asgi.py .......

=================================== FAILURES ===================================
_______________________ test_transaction_with_class_view _______________________
tests/integrations/django/test_basic.py:121: in test_transaction_with_class_view
    assert (
E   AssertionError: assert 'tests.integr...<locals>.view' == 'tests.integr...lassBasedView'
E     - tests.integrations.django.myapp.views.ClassBasedView
E     + tests.integrations.django.myapp.views.View.as_view.<locals>.view

[ahmedetefy]

Thanks for the PR!