packer-cn/builder/null/config.go

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package null
import (
"fmt"
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"github.com/hashicorp/packer/common"
"github.com/hashicorp/packer/helper/communicator"
"github.com/hashicorp/packer/helper/config"
"github.com/hashicorp/packer/packer"
"github.com/hashicorp/packer/template/interpolate"
)
type Config struct {
common.PackerConfig `mapstructure:",squash"`
CommConfig communicator.Config `mapstructure:",squash"`
}
func NewConfig(raws ...interface{}) (*Config, []string, error) {
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var c Config
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err := config.Decode(&c, &config.DecodeOpts{
Interpolate: true,
InterpolateFilter: &interpolate.RenderFilter{},
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}, raws...)
if err != nil {
return nil, nil, err
}
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var errs *packer.MultiError
if es := c.CommConfig.Prepare(nil); len(es) > 0 {
errs = packer.MultiErrorAppend(errs, es...)
}
if c.CommConfig.Host() == "" {
errs = packer.MultiErrorAppend(errs,
fmt.Errorf("a Host must be specified, please reference your communicator documentation"))
}
if c.CommConfig.User() == "" {
errs = packer.MultiErrorAppend(errs,
fmt.Errorf("a Username must be specified, please reference your communicator documentation"))
}
if c.CommConfig.Password() == "" && c.CommConfig.SSHPrivateKey == "" {
errs = packer.MultiErrorAppend(errs,
fmt.Errorf("one authentication method must be specified, please reference your communicator documentation"))
}
if c.CommConfig.SSHPassword != "" && c.CommConfig.SSHPrivateKey != "" {
errs = packer.MultiErrorAppend(errs,
fmt.Errorf("only one of ssh_password and ssh_private_key_file must be specified"))
}
if errs != nil && len(errs.Errors) > 0 {
return nil, nil, errs
}
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return &c, nil, nil
}