Manual installation of kops

This how-to is based on github.com/kubernetes/kops/blob/master/docs/aws.md.

You need to follow several preparation steps to make sure the prerequisites for the installation are in place:
- You have an AWS account
- A DNS route is configured, e.g. http://lagom-cluster.some-domain.test
- An S3 bucket is created, e.g. s3://lagom-cluster.config.12345
- The CLI Tools are installed

Export the S3 bucket

export KOPS_STATE_STORE=s3://lagom-cluster.config.12345

Create an Amazon cluster configuration with one master node on a t2.micro instance and two minion nodes on t2.medium instances in the eu-central-1a zone
```
kops create cluster --name=lagom-cluster.some-domain.test  --zones=eu-central-1a --node-count=1 --node-size=t2.medium --master-     size=t2.micro  --dns-zone=lagom-cluster.some-domain.test
```
All of the nodes must have 20 GB of GP2 storage assigned.

This can be adjusted in the spec section of the config file:

kops edit ig --name=lagom-cluster.some-domain.test nodes or kops edit ig --name=lagom-cluster.some-domain.test master-eu-central-1a.
```
spec:
...
rootVolumeSize: 100
rootVolumeType: gp2
...
```

Bootstrap the AWS cluster

kops update cluster lagom-cluster.some-domain.test --yes

After the cluster is ready, it can be verified with kops validate cluster; all checks should be passed successfully

Now that your cluster is ready, you can proceed to configure Kubernetes