github.phpd.cn/hashicorp/packer@v1.3.2/fix/fixer_sshdisableagent.go (about)

     1  package fix
     2  
     3  import (
     4  	"github.com/mitchellh/mapstructure"
     5  )
     6  
     7  // FixerSSHDisableAgent changes the "ssh_disable_agent" of a template
     8  // to "ssh_disable_agent_forwarding".
     9  type FixerSSHDisableAgent struct{}
    10  
    11  func (FixerSSHDisableAgent) Fix(input map[string]interface{}) (map[string]interface{}, error) {
    12  	// The type we'll decode into; we only care about builders
    13  	type template struct {
    14  		Builders []map[string]interface{}
    15  	}
    16  
    17  	// Decode the input into our structure, if we can
    18  	var tpl template
    19  	if err := mapstructure.Decode(input, &tpl); err != nil {
    20  		return nil, err
    21  	}
    22  
    23  	for _, builder := range tpl.Builders {
    24  		sshDisableAgentRaw, ok := builder["ssh_disable_agent"]
    25  		if !ok {
    26  			continue
    27  		}
    28  
    29  		sshDisableAgent, ok := sshDisableAgentRaw.(bool)
    30  		if !ok {
    31  			continue
    32  		}
    33  
    34  		// only assign to ssh_disable_agent_forwarding if it doesn't
    35  		// already exist; otherwise we'll just ignore ssh_disable_agent
    36  		_, sshDisableAgentIncluded := builder["ssh_disable_agent_forwarding"]
    37  		if !sshDisableAgentIncluded {
    38  			builder["ssh_disable_agent_forwarding"] = sshDisableAgent
    39  		}
    40  
    41  		delete(builder, "ssh_disable_agent")
    42  	}
    43  
    44  	input["builders"] = tpl.Builders
    45  	return input, nil
    46  }
    47  
    48  func (FixerSSHDisableAgent) Synopsis() string {
    49  	return `Updates builders using "ssh_disable_agent" to use "ssh_disable_agent_forwarding"`
    50  }