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Add auto discovery of AZ based on the subnet

This commit is contained in:
Colin Hebert 2015-03-01 00:00:45 +11:00
parent 1b07d7eb5e
commit a08725f7c5
3 changed files with 33 additions and 0 deletions
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11
builder/amazon/chroot/builder.go
View File

@ -165,6 +165,17 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
ec2conn := ec2.New(auth, region)
// If the subnet is specified but not the AZ, try to determine the AZ automatically
if b.config.SubnetId != "" && b.config.AvailabilityZone == "" {
log.Printf("[INFO] Finding AZ for the given subnet '%s'", b.config.SubnetId)
resp, err := ec2conn.DescribeSubnets([]string{b.config.SubnetId}, nil)
if err != nil {
return nil, err
}
b.config.AvailabilityZone = resp.Subnets[0].AvailabilityZone
log.Printf("[INFO] AZ found: '%s'", b.config.AvailabilityZone)
}
wrappedCommand := func(command string) (string, error) {
return b.config.tpl.Process(
b.config.CommandWrapper, &wrappedCommandTemplate{

11
builder/amazon/ebs/builder.go
View File

@ -75,6 +75,17 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
ec2conn := ec2.New(auth, region)
// If the subnet is specified but not the AZ, try to determine the AZ automatically
if b.config.SubnetId != "" && b.config.AvailabilityZone == "" {
log.Printf("[INFO] Finding AZ for the given subnet '%s'", b.config.SubnetId)
resp, err := ec2conn.DescribeSubnets([]string{b.config.SubnetId}, nil)
if err != nil {
return nil, err
}
b.config.AvailabilityZone = resp.Subnets[0].AvailabilityZone
log.Printf("[INFO] AZ found: '%s'", b.config.AvailabilityZone)
}
// Setup the state bag and initial state for the steps
state := new(multistep.BasicStateBag)
state.Put("config", b.config)

11
builder/amazon/instance/builder.go
View File

@ -180,6 +180,17 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
ec2conn := ec2.New(auth, region)
// If the subnet is specified but not the AZ, try to determine the AZ automatically
if b.config.SubnetId != "" && b.config.AvailabilityZone == "" {
log.Printf("[INFO] Finding AZ for the given subnet '%s'", b.config.SubnetId)
resp, err := ec2conn.DescribeSubnets([]string{b.config.SubnetId}, nil)
if err != nil {
return nil, err
}
b.config.AvailabilityZone = resp.Subnets[0].AvailabilityZone
log.Printf("[INFO] AZ found: '%s'", b.config.AvailabilityZone)
}
// Setup the state bag and initial state for the steps
state := new(multistep.BasicStateBag)
state.Put("config", &b.config)