packer-cn/builder/amazon/common/ami_config.go

77 lines
2.6 KiB
Go

package common
import (
"fmt"
"github.com/mitchellh/packer/template/interpolate"
)
// AMIConfig is for common configuration related to creating AMIs.
type AMIConfig struct {
AMIName string `mapstructure:"ami_name"`
AMIDescription string `mapstructure:"ami_description"`
AMIVirtType string `mapstructure:"ami_virtualization_type"`
AMIUsers []string `mapstructure:"ami_users"`
AMIGroups []string `mapstructure:"ami_groups"`
AMIProductCodes []string `mapstructure:"ami_product_codes"`
AMIRegions []string `mapstructure:"ami_regions"`
AMISkipRegionValidation bool `mapstructure:"skip_region_validation"`
AMITags map[string]string `mapstructure:"tags"`
AMIEnhancedNetworking bool `mapstructure:"enhanced_networking"`
AMIForceDeregister bool `mapstructure:"force_deregister"`
AMIForceDeleteSnapshot bool `mapstructure:"force_delete_snapshot"`
AMIEncryptBootVolume bool `mapstructure:"encrypt_boot"`
AMIKmsKeyId string `mapstructure:"kms_key_id"`
SnapshotTags map[string]string `mapstructure:"snapshot_tags"`
SnapshotUsers []string `mapstructure:"snapshot_users"`
SnapshotGroups []string `mapstructure:"snapshot_groups"`
}
func (c *AMIConfig) Prepare(ctx *interpolate.Context) []error {
var errs []error
if c.AMIName == "" {
errs = append(errs, fmt.Errorf("ami_name must be specified"))
}
if len(c.AMIRegions) > 0 {
regionSet := make(map[string]struct{})
regions := make([]string, 0, len(c.AMIRegions))
for _, region := range c.AMIRegions {
// If we already saw the region, then don't look again
if _, ok := regionSet[region]; ok {
continue
}
// Mark that we saw the region
regionSet[region] = struct{}{}
if !c.AMISkipRegionValidation {
// Verify the region is real
if valid := ValidateRegion(region); valid == false {
errs = append(errs, fmt.Errorf("Unknown region: %s", region))
continue
}
}
regions = append(regions, region)
}
c.AMIRegions = regions
}
if len(c.AMIUsers) > 0 && c.AMIEncryptBootVolume {
errs = append(errs, fmt.Errorf("Cannot share AMI with encrypted boot volume"))
}
if len(c.SnapshotUsers) > 0 && len(c.AMIKmsKeyId) == 0 && c.AMIEncryptBootVolume {
errs = append(errs, fmt.Errorf("Cannot share snapshot encrypted with default KMS key"))
}
if len(errs) > 0 {
return errs
}
return nil
}