merge files from the blockchain infra repo (#59)

code/kubernetes/python-cdk/python/VPC_example/README.md

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+# Setting up a VPC with CDK in Python
+
+[AWS CDK](https://docs.aws.amazon.com/cdk/latest/guide/home.html) is a very neat way to write infrastructure as code, enabling you to create and provision AWS infrastructure deployments predictably and repeatedly.
+
+You choose your favorite language to code what resources (stacks) you want, and CDK synthetizes them to CloudFormation and helps you to deploy them to AWS.
+
+In this example we see how to setup a VPC using CDK in Python. 
+
+### Install AWS CDK
+
+Follow [this instructions](https://github.com/aws/aws-cdk#at-a-glance).
+
+### Create a virtual environment and install dependencies:
+
+```
+virtualenv venv
+source venv/bin/activate
+pip install -r requirements.txt
+```
+
+Note: If you are starting from a blank project with `cdk init app --language=python` instead, you will we need to manually install resources, such as `pip install aws_cdk.aws_ec2`.
+
+### Define You VPC 
+
+Define how you want your VPC in the file `vpc_example/vpc_example_stack.py`:
+
+```
+class VpcExampleStack(core.Stack):
+
+    def __init__(self, scope: core.Construct, id: str, **kwargs) -> None:
+        super().__init__(scope, id, **kwargs)
+
+        vpc = aws_ec2.Vpc(self, "MiaVPCTest", cidr="10.0.0.0/16", max_azs=3)
+```
+
+
+### Create synthesized CloudFormation template
+
+```
+cdk synth
+```
+
+You can check what changes this introduces into your AWS account:
+```
+cdk diff --profile <AWS PROFILE>
+```
+
+### Deploy to AWS
+
+If everything looks right, deploy:
+
+```
+cdk deploy --profile <AWS PROFILE>
+```
+
+To check all the stacks in the app:
+
+```
+cdk ls
+```
+
+### Clean up
+
+To destroy/remove all the newly created resources, run:
+
+```
+cdk destroy --profile <AWS PROFILE>
+```
+

code/kubernetes/python-cdk/python/VPC_example/app.py

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+#!/usr/bin/env python3
+
+from aws_cdk import core
+
+from vpc_example.vpc_example_stack import VpcExampleStack
+
+
+app = core.App()
+VpcExampleStack(app, "vpc-example")
+
+app.synth()

code/kubernetes/python-cdk/python/VPC_example/cdk.json

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+{
+    "app": "python3 app.py"
+}

code/kubernetes/python-cdk/python/VPC_example/requirements.txt

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+attrs==19.1.0
+aws-cdk.aws-cloudwatch==1.10.0
+aws-cdk.aws-ec2==1.10.0
+aws-cdk.aws-iam==1.10.0
+aws-cdk.aws-ssm==1.10.0
+aws-cdk.core==1.10.0
+aws-cdk.cx-api==1.10.0
+aws-cdk.region-info==1.10.0
+cattrs==0.9.0
+jsii==0.17.1
+publication==0.0.3
+python-dateutil==2.8.0
+six==1.12.0
+typing-extensions==3.7.4

code/kubernetes/python-cdk/python/VPC_example/setup.py

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+import setuptools
+
+
+with open("README.md") as fp:
+    long_description = fp.read()
+
+
+setuptools.setup(
+    name="vpc_example",
+    version="0.0.1",
+
+    description="A VPC CDK Python example",
+    long_description=long_description,
+    long_description_content_type="text/markdown",
+
+    author="author",
+
+    package_dir={"": "vpc_example"},
+    packages=setuptools.find_packages(where="vpc_example"),
+
+    install_requires=[
+        "aws-cdk.core",
+    ],
+
+    python_requires=">=3.6",
+
+    classifiers=[
+        "Development Status :: 4 - Beta",
+
+        "Intended Audience :: Developers",
+
+        "License :: OSI Approved :: Apache Software License",
+
+        "Programming Language :: JavaScript",
+        "Programming Language :: Python :: 3 :: Only",
+        "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
+
+        "Topic :: Software Development :: Code Generators",
+        "Topic :: Utilities",
+
+        "Typing :: Typed",
+    ],
+)

code/kubernetes/python-cdk/python/VPC_example/vpc_example/vpc_example_stack.py

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+from aws_cdk import core, aws_ec2
+
+class VpcExampleStack(core.Stack):
+
+    def __init__(self, scope: core.Construct, id: str, **kwargs) -> None:
+        super().__init__(scope, id, **kwargs)
+
+        vpc = aws_ec2.Vpc(self, "MiaVPCTest", cidr="10.0.0.0/16", max_azs=3)