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

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package common
import (
"cgl.tideland.biz/identifier"
"encoding/hex"
"fmt"
"github.com/mitchellh/goamz/ec2"
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
"log"
)
type StepSecurityGroup struct {
SecurityGroupId string
SSHPort int
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VpcId string
createdGroupId string
}
func (s *StepSecurityGroup) Run(state map[string]interface{}) multistep.StepAction {
ec2conn := state["ec2"].(*ec2.EC2)
ui := state["ui"].(packer.Ui)
if s.SecurityGroupId != "" {
log.Printf("Using specified security group: %s", s.SecurityGroupId)
state["securityGroupId"] = s.SecurityGroupId
return multistep.ActionContinue
}
if s.SSHPort == 0 {
panic("SSHPort must be set to a non-zero value.")
}
// Create the group
ui.Say("Creating temporary security group for this instance...")
groupName := fmt.Sprintf("packer %s", hex.EncodeToString(identifier.NewUUID().Raw()))
log.Printf("Temporary group name: %s", groupName)
group := ec2.SecurityGroup{
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Name: groupName,
Description: "Temporary group for Packer",
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VpcId: s.VpcId,
}
groupResp, err := ec2conn.CreateSecurityGroup(group)
if err != nil {
ui.Error(err.Error())
return multistep.ActionHalt
}
// Set the group ID so we can delete it later
s.createdGroupId = groupResp.Id
// Authorize the SSH access
perms := []ec2.IPPerm{
ec2.IPPerm{
Protocol: "tcp",
FromPort: s.SSHPort,
ToPort: s.SSHPort,
SourceIPs: []string{"0.0.0.0/0"},
},
}
ui.Say("Authorizing SSH access on the temporary security group...")
if _, err := ec2conn.AuthorizeSecurityGroup(groupResp.SecurityGroup, perms); err != nil {
err := fmt.Errorf("Error creating temporary security group: %s", err)
state["error"] = err
ui.Error(err.Error())
return multistep.ActionHalt
}
// Set some state data for use in future steps
state["securityGroupId"] = s.createdGroupId
return multistep.ActionContinue
}
func (s *StepSecurityGroup) Cleanup(state map[string]interface{}) {
if s.createdGroupId == "" {
return
}
ec2conn := state["ec2"].(*ec2.EC2)
ui := state["ui"].(packer.Ui)
ui.Say("Deleting temporary security group...")
_, err := ec2conn.DeleteSecurityGroup(ec2.SecurityGroup{Id: s.createdGroupId})
if err != nil {
log.Printf("Error deleting security group: %s", err)
ui.Error(fmt.Sprintf(
"Error cleaning up security group. Please delete the group manually: %s", s.createdGroupId))
}
}