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//go:generate struct-markdown
package qemu
import (
"errors"
"github.com/hashicorp/packer/packer-plugin-sdk/communicator"
"github.com/hashicorp/packer/packer-plugin-sdk/template/interpolate"
)
type CommConfig struct {
Comm communicator.Config `mapstructure:",squash"`
// The minimum port to use for the Communicator port on the host machine which is forwarded
// to the SSH or WinRM port on the guest machine. By default this is 2222.
HostPortMin int `mapstructure:"host_port_min" required:"false"`
// The maximum port to use for the Communicator port on the host machine which is forwarded
// to the SSH or WinRM port on the guest machine. Because Packer often runs in parallel,
// Packer will choose a randomly available port in this range to use as the
// host port. By default this is 4444.
HostPortMax int `mapstructure:"host_port_max" required:"false"`
// Defaults to false. When enabled, Packer
// does not setup forwarded port mapping for communicator (SSH or WinRM) requests and uses ssh_port or winrm_port
// on the host to communicate to the virtual machine.
SkipNatMapping bool `mapstructure:"skip_nat_mapping" required:"false"`
// These are deprecated, but we keep them around for backwards compatibility
// TODO: remove later
SSHHostPortMin int `mapstructure:"ssh_host_port_min" required:"false"`
// TODO: remove later
SSHHostPortMax int `mapstructure:"ssh_host_port_max"`
}
func (c *CommConfig) Prepare(ctx *interpolate.Context) (warnings []string, errs []error) {
// Backwards compatibility
if c.SSHHostPortMin != 0 {
warnings = append(warnings, "ssh_host_port_min is deprecated and is being replaced by host_port_min. "+
"Please, update your template to use host_port_min. In future versions of Packer, inclusion of ssh_host_port_min will error your builds.")
c.HostPortMin = c.SSHHostPortMin
}
// Backwards compatibility
if c.SSHHostPortMax != 0 {
warnings = append(warnings, "ssh_host_port_max is deprecated and is being replaced by host_port_max. "+
"Please, update your template to use host_port_max. In future versions of Packer, inclusion of ssh_host_port_max will error your builds.")
c.HostPortMax = c.SSHHostPortMax
}
if c.Comm.SSHHost == "" && c.SkipNatMapping {
c.Comm.SSHHost = "127.0.0.1"
}
if c.HostPortMin == 0 {
c.HostPortMin = 2222
}
if c.HostPortMax == 0 {
c.HostPortMax = 4444
}
errs = c.Comm.Prepare(ctx)
if c.HostPortMin > c.HostPortMax {
errs = append(errs,
errors.New("host_port_min must be less than host_port_max"))
}
if c.HostPortMin < 0 {
errs = append(errs, errors.New("host_port_min must be positive"))
}
return
}
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