Created
February 28, 2014 09:59
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Cloudformation Golang DSL
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package main | |
import ( | |
"encoding/json" | |
"strings" | |
) | |
// base types | |
type Hash map[string]interface{} | |
type List []interface{} | |
// special types | |
type Template struct { | |
AWSTemplateFormatVersion string | |
Description string | |
Resources Resources | |
} | |
type Typer interface { | |
Type() string | |
} | |
type InternetGateway struct { | |
} | |
func (g InternetGateway) Type() string { | |
return "AWS::EC2::InternetGateway" | |
} | |
type Vpc struct { | |
CidrBlock interface{} `json:"CidrBlock,omitempty"` | |
EnableDnsSupport interface{} `json:"EnableDnsSupport,omitempty"` | |
InstanceTenancy interface{} `json:"InstanceTenancy,omitempty"` | |
Tags interface{} `json:"Tags,omitempty"` | |
} | |
type VPCGatewayAttachment struct { | |
InternetGatewayId interface{} `json:"InternetGatewayId,omitempty"` | |
VpcId interface{} `json:"VpcId,omitempty"` | |
} | |
type RouteTable struct { | |
VpcId interface{} `json:"VpcId,omitempty"` | |
} | |
type SecurityGroup struct { | |
GroupDescription interface{} `json:"GroupDescription,omitempty"` | |
SecurityGroupEgress interface{} `json:"SecurityGroupEgress,omitempty"` | |
SecurityGroupIngress interface{} `json:"SecurityGroupIngress,omitempty"` | |
VpcId interface{} `json:"VpcId,omitempty"` | |
Tags interface{} `json:"Tags,omitempty"` | |
} | |
func (s SecurityGroup) Type() string { | |
return "AWS::EC2::SecurityGroup" | |
} | |
type SecurityGroupEgress struct { | |
CidrIp interface{} `json:"CidrIp,omitempty"` | |
FromPort interface{} `json:"FromPort,omitempty"` | |
IpProtocol interface{} `json:"IpProtocol,omitempty"` | |
DestinationSecurityGroupId interface{} `json:"DestinationSecurityGroupId,omitempty"` | |
ToPort interface{} `json:"ToPort,omitempty"` | |
} | |
type SecurityGroupIngress struct { | |
CidrIp interface{} `json:"CidrIp,omitempty"` | |
FromPort interface{} `json:"FromPort,omitempty"` | |
IpProtocol interface{} `json:"IpProtocol,omitempty"` | |
SourceSecurityGroupId interface{} `json:"SourceSecurityGroupId,omitempty"` | |
SourceSecurityGroupName interface{} `json:"SourceSecurityGroupName,omitempty"` | |
SourceSecurityGroupOwnerId interface{} `json:"SourceSecurityGroupOwnerId,omitempty"` | |
ToPort interface{} `json:"ToPort,omitempty"` | |
} | |
func (r RouteTable) Type() string { | |
return "AWS::EC2::RouteTable" | |
} | |
func (e VPCGatewayAttachment) Type() string { | |
return "AWS::EC2::VPCGatewayAttachment" | |
} | |
type Route struct { | |
DestinationCidrBlock interface{} `json:"DestinationCidrBlock,omitempty"` | |
GatewayId interface{} `json:"GatewayId,omitempty"` | |
RouteTableId interface{} `json:"RouteTableId,omitempty"` | |
} | |
func (r Route) Type() string { | |
return "AWS::EC2::Route" | |
} | |
type Subnet struct { | |
AvailabilityZone interface{} `json:"AvailabilityZone,omitempty"` | |
CidrBlock interface{} `json:"CidrBlock,omitempty"` | |
VpcId interface{} `json:"VpcId,omitempty"` | |
} | |
type SubnetRouteTableAssociation struct { | |
RouteTableId interface{} `json:"RouteTableId,omitempty"` | |
SubnetId interface{} `json:"SubnetId,omitempty"` | |
} | |
func (s SubnetRouteTableAssociation) Type() string { | |
return "AWS::EC2::SubnetRouteTableAssociation" | |
} | |
func (s Subnet) Type() string { | |
return "AWS::EC2::Subnet" | |
} | |
func (r Resources) MarshalJSON() ([]byte, error) { | |
lines := []string{} | |
for k, v := range r { | |
kj, e := json.Marshal(k) | |
if e != nil { | |
return nil, e | |
} | |
p := map[string]interface{}{ | |
"Type": v.Type(), | |
} | |
vj, e := json.Marshal(v) | |
if e != nil { | |
return nil, e | |
} | |
if string(vj) != "{}" { | |
p["Properties"] = v | |
} | |
pj, e := json.Marshal(p) | |
lines = append(lines, string(kj)+": "+string(pj)) | |
} | |
return []byte("{" + strings.Join(lines, ",\n") + "}"), nil | |
} | |
func (v Vpc) Type() string { | |
return "AWS::EC2::VPC" | |
} | |
type Instance struct { | |
AvailabilityZone interface{} `json:"AvailabilityZone,omitempty"` | |
BlockDeviceMappings interface{} `json:"BlockDeviceMappings,omitempty"` | |
DisableApiTermination interface{} `json:"DisableApiTermination,omitempty"` | |
EbsOptimized interface{} `json:"EbsOptimized,omitempty"` | |
IamInstanceProfile interface{} `json:"IamInstanceProfile,omitempty"` | |
ImageId interface{} `json:"ImageId,omitempty"` | |
InstanceType interface{} `json:"InstanceType,omitempty"` | |
KernelId interface{} `json:"KernelId,omitempty"` | |
KeyName interface{} `json:"KeyName,omitempty"` | |
Monitoring interface{} `json:"Monitoring,omitempty"` | |
NetworkInterfaces interface{} `json:"NetworkInterfaces,omitempty"` | |
PlacementGroupName interface{} `json:"PlacementGroupName,omitempty"` | |
PrivateIpAddress interface{} `json:"PrivateIpAddress,omitempty"` | |
RamdiskId interface{} `json:"RamdiskId,omitempty"` | |
SecurityGroupIds interface{} `json:"SecurityGroupIds,omitempty"` | |
SecurityGroups interface{} `json:"SecurityGroups,omitempty"` | |
SourceDestCheck interface{} `json:"SourceDestCheck,omitempty"` | |
SubnetId interface{} `json:"SubnetId,omitempty"` | |
Tags interface{} `json:"Tags,omitempty"` | |
Tenancy interface{} `json:"Tenancy,omitempty"` | |
UserData interface{} `json:"UserData,omitempty"` | |
Volumes interface{} `json:"Volumes,omitempty"` | |
} | |
func (i Instance) Type() string { | |
return "AWS::EC2::Instance" | |
} | |
type NetworkInterface struct { | |
AssociatePublicIpAddress interface{} `json:"AssociatePublicIpAddress,omitempty"` | |
DeleteOnTermination interface{} `json:"DeleteOnTermination,omitempty"` | |
Description interface{} `json:"Description,omitempty"` | |
DeviceIndex interface{} `json:"DeviceIndex,omitempty"` | |
GroupSet interface{} `json:"GroupSet,omitempty"` | |
NetworkInterfaceId interface{} `json:"NetworkInterfaceId,omitempty"` | |
PrivateIpAddress interface{} `json:"PrivateIpAddress,omitempty"` | |
PrivateIpAddresses interface{} `json:"PrivateIpAddresses,omitempty"` | |
SecondaryPrivateIpAddressCount interface{} `json:"SecondaryPrivateIpAddressCount,omitempty"` | |
SubnetId interface{} `json:"SubnetId,omitempty"` | |
} | |
type Tag struct { | |
Key string `json:"Key,omitempty"` | |
Value string `json:"Value,omitempty"` | |
} | |
type Resources map[string]Typer | |
func ref(i interface{}) Hash { | |
return Hash{"Ref": i} | |
} |
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