Make the VPC configurable from with the YAML file

If no VPC is specified in the YAML config, it will default to
10.0.0.0/16.

Also updated the sample-project.yaml to include this change, and instead
of copy/pasting the sample yaml to the README, we now link to it
directly.

README.rst

@@ -76,96 +76,7 @@ This tool needs AWS credentials to create stacks and the credentials should be p
 
 Project specific YAML file
 +++++++++++++++++++++++++++
-The YAML file below highlights what is possible with all the bootstrap-cfn features available to date. The minimum requirement is that it must contain an *ec2* block, you **do not** have to use RDS, S3 or ELB's.
-
-::
-
-    dev:
-      ec2:
-        auto_scaling:
-          desired: 1
-          max: 3
-          min: 0
-        tags:
-          Role: docker
-          Apps: test
-          Env: dev
-        parameters:
-          KeyName: default
-          InstanceType: t2.micro
-        block_devices:
-          - DeviceName: /dev/sda1
-            VolumeSize: 10
-          - DeviceName: /dev/sdf
-            VolumeSize: 10
-        security_groups:
-          MySecGroup:
-            - IpProtocol: tcp
-              FromPort: 22
-              ToPort: 22
-              CidrIp: 0.0.0.0/0
-            - IpProtocol: tcp
-              FromPort: 80
-              ToPort: 80
-              CidrIp: 0.0.0.0/0
-      elb:
-        - name: test-dev-external
-          hosted_zone: my.domain.com.
-          scheme: internet-facing
-          listeners:
-            - LoadBalancerPort: 80
-              InstancePort: 80
-              Protocol: TCP
-            - LoadBalancerPort: 443
-              InstancePort: 443
-              Protocol: TCP
-        - name: test-dev-internal
-          hosted_zone: my.domain.com.
-          scheme: internet-facing
-          security_groups:
-            ELBSecGroup:
-              - IpProtocol: tcp
-                FromPort: 80
-                ToPort: 80
-                CidrIp: 10.0.0.0/0
-          listeners:
-            - LoadBalancerPort: 80
-              InstancePort: 80
-              Protocol: TCP
-      s3:
-        static-bucket-name: moj-test-dev-static
-      rds:
-        storage: 5
-        storage-type: gp2
-        backup-retention-period: 1
-        identifier: test-dev
-        db-name: test
-        db-master-username: testuser
-        db-master-password: testpassword
-        instance-class: db.t2.micro
-        multi-az: false
-        db-engine: postgres
-        db-engine-version: 9.3.5
-      ssl:
-        my-cert:
-          cert: |
-            -----BEGIN CERTIFICATE-----
-            blahblahblah
-            -----END CERTIFICATE-----
-          key: |
-            -----BEGIN RSA PRIVATE KEY-----
-            blahblahblah
-            -----END RSA PRIVATE KEY-----
-          chain: |
-            -----BEGIN CERTIFICATE-----
-            blahblahblah
-            -----END CERTIFICATE-----
-      salt:
-        local_salt_dir: ./salt
-        local_pillar_dir: ./pillar
-        local_vendor_dir: ./vendor
-        remote_state_dir: /srv/salt
-        remote_pillar_dir: /srv/pillar
+The `YAML file <https://github.com/ministryofjustice/bootstrap-cfn/blob/master/docs/sample-project.yaml>`_ highlights what is possible with all the bootstrap-cfn features available to date. The minimum requirement is that it must contain an *ec2* block, you **do not** have to use RDS, S3 or ELB's.
 
 
 Salt specific configuration

bootstrap_cfn/config.py

@@ -86,6 +86,8 @@ def process(self):
                 data[k] = v
 
         template = json.loads(pkgutil.get_data('bootstrap_cfn', 'stacks/base.json'))
+        if 'vpc' in self.data:
+            template['Mappings']['SubnetConfig']['VPC'] = self.data['vpc']
         template['Resources'] = data
         template['Outputs'] = {}
         for t in output_templates:

docs/sample-project.yaml

@@ -1,4 +1,9 @@
 dev:
+  vpc:
+    CIDR: 10.0.0.0/16
+    SubnetA: 10.0.0.0/20
+    SubnetB: 10.0.16.0/20
+    SubnetC: 10.0.32.0/20
   ec2:
     auto_scaling:
       desired: 1
@@ -17,14 +22,15 @@ dev:
       - DeviceName: /dev/sdf
         VolumeSize: 10
     security_groups:
-      - IpProtocol: tcp
-        FromPort: 22
-        ToPort: 22
-        CidrIp: 0.0.0.0/0
-      - IpProtocol: tcp
-        FromPort: 80
-        ToPort: 80
-        CidrIp: 0.0.0.0/0
+      BaseSG:
+        - IpProtocol: tcp
+          FromPort: 22
+          ToPort: 22
+          CidrIp: 0.0.0.0/0
+        - IpProtocol: tcp
+          FromPort: 80
+          ToPort: 80
+          CidrIp: 0.0.0.0/0
   elb:
     - name: test-dev-external
       hosted_zone: kyrtest.pf.dsd.io.