80 lines
2.0 KiB
Go
80 lines
2.0 KiB
Go
package lxc
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import (
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"fmt"
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"github.com/mitchellh/mapstructure"
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"github.com/mitchellh/packer/common"
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"github.com/mitchellh/packer/helper/config"
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"github.com/mitchellh/packer/packer"
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"github.com/mitchellh/packer/template/interpolate"
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"os"
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"time"
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)
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type Config struct {
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common.PackerConfig `mapstructure:",squash"`
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ConfigFile string `mapstructure:"config_file"`
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OutputDir string `mapstructure:"output_directory"`
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ContainerName string `mapstructure:"container_name"`
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CommandWrapper string `mapstructure:"command_wrapper"`
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RawInitTimeout string `mapstructure:"init_timeout"`
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Name string `mapstructure:"template_name"`
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Parameters []string `mapstructure:"template_parameters"`
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EnvVars []string `mapstructure:"template_environment_vars"`
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TargetRunlevel int `mapstructure:"target_runlevel"`
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InitTimeout time.Duration
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ctx interpolate.Context
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}
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func NewConfig(raws ...interface{}) (*Config, error) {
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var c Config
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var md mapstructure.Metadata
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err := config.Decode(&c, &config.DecodeOpts{
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Metadata: &md,
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Interpolate: true,
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}, raws...)
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if err != nil {
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return nil, err
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}
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// Accumulate any errors
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var errs *packer.MultiError
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if c.OutputDir == "" {
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c.OutputDir = fmt.Sprintf("output-%s", c.PackerBuildName)
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}
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if c.ContainerName == "" {
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c.ContainerName = fmt.Sprintf("packer-%s", c.PackerBuildName)
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}
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if c.TargetRunlevel == 0 {
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c.TargetRunlevel = 3
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}
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if c.CommandWrapper == "" {
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c.CommandWrapper = "{{.Command}}"
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}
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if c.RawInitTimeout == "" {
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c.RawInitTimeout = "20s"
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}
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c.InitTimeout, err = time.ParseDuration(c.RawInitTimeout)
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if err != nil {
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errs = packer.MultiErrorAppend(errs, fmt.Errorf("Failed parsing init_timeout: %s", err))
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}
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if _, err := os.Stat(c.ConfigFile); os.IsNotExist(err) {
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errs = packer.MultiErrorAppend(errs, fmt.Errorf("LXC Config file appears to be missing: %s", c.ConfigFile))
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}
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if errs != nil && len(errs.Errors) > 0 {
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return nil, errs
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}
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return &c, nil
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}
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