VPC subnets as a ec2 provider option

[jimdowling]

VPC subnets are important for the highest performance networking (10 GbE) - without it you have 1 GbE. You can easily create them in jclouds - see here: https://jclouds.apache.org/guides/aws-ec2/.
It would be nice to have this as a ec2 option:
vpc true
or something like that.

[jimdowling]

VPC
To create nodes in a subnet under Amazon VPC add the following option to your template options. Note that VPCs and Security Groups are mutually exclusive.

TemplateOptions options = compute.templateOptions();
options.as(AWSEC2TemplateOptions.class).subnetId(subnetId);

Set<? extends NodeMetadata> nodes = client.runNodesInGroup(group, 1,
options);
You can also checkout EC2ComputeServiceListTest.testExtendedOptionsWithSubnetId()

[kamalhakim]

Feature was added today b26db39

User must take the steps below to be able to use vpc:

1. Make a VPC and a subnet assigned to it under your ec2
2. Check the "Auto-assign Public IP" item for your subnet.
3. Make an internet gateway and attach it to the VPC
4. Make a routing table for your VPC and add a row for your gateway into it, on this row open all ips '0.0.0.0/0'
5. Add your vpc-id and subnet-id into the ec2 section of your yaml like the following example. Also make sure you are using the right image and type of instance for your vpc.

ec2:
    type: c4.large
    region: eu-west-1
    image: ami-47a23a30
    vpc: vpc-f70ea392
    subnet: subnet-e7830290

[jimdowling]

Kamal, can you add the steps above to the README.md?

[kamalhakim]

Done.