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Add Write method to templates.Output.

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This commit is contained in:
Mariano Cano 2019-10-11 18:59:50 -07:00 committed by max furman
parent b792d5c07d
commit 1b0d05097b
2 changed files with 56 additions and 22 deletions
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21
pki/templates.go
View file

@ -4,23 +4,24 @@ import (
"os"
"path/filepath"
"github.com/smallstep/cli/utils"
"github.com/pkg/errors"
"github.com/smallstep/certificates/templates"
"github.com/smallstep/cli/config"
"github.com/smallstep/cli/errs"
"github.com/smallstep/cli/utils"
)
// sshTemplates contains the configuration of default templates used on ssh.
// Relative paths are relative to the StepPath.
var sshTemplates = &templates.SSHTemplates{
User: []templates.Template{
{Name: "include.tpl", Type: templates.Snippet, TemplatePath: "ssh/include.tpl", Path: "~/.ssh/config", Comment: "#"},
{Name: "config.tpl", Type: templates.File, TemplatePath: "ssh/config.tpl", Path: "ssh/config", Comment: "#"},
{Name: "known_hosts.tpl", Type: templates.File, TemplatePath: "ssh/known_hosts.tpl", Path: "ssh/known_hosts", Comment: "#"},
{Name: "include.tpl", Type: templates.Snippet, TemplatePath: "templates/ssh/include.tpl", Path: "~/.ssh/config", Comment: "#"},
{Name: "config.tpl", Type: templates.File, TemplatePath: "templates/ssh/config.tpl", Path: "ssh/config", Comment: "#"},
{Name: "known_hosts.tpl", Type: templates.File, TemplatePath: "templates/ssh/known_hosts.tpl", Path: "ssh/known_hosts", Comment: "#"},
},
Host: []templates.Template{
{Name: "sshd_config.tpl", Type: templates.Snippet, TemplatePath: "ssh/sshd_config.tpl", Path: "/etc/ssh/sshd_config", Comment: "#"},
{Name: "ca.tpl", Type: templates.Snippet, TemplatePath: "ssh/ca.tpl", Path: "/etc/ssh/ca.pub", Comment: "#"},
{Name: "sshd_config.tpl", Type: templates.Snippet, TemplatePath: "templates/ssh/sshd_config.tpl", Path: "/etc/ssh/sshd_config", Comment: "#"},
{Name: "ca.tpl", Type: templates.Snippet, TemplatePath: "templates/ssh/ca.tpl", Path: "/etc/ssh/ca.pub", Comment: "#"},
},
}
@ -36,7 +37,7 @@ var sshTemplateData = map[string]string{
ForwardAgent yes
UserKnownHostsFile {{.User.StepPath}}/config/ssh/known_hosts`,
// known_hosts.tpl authorizes the ssh hosst key
// known_hosts.tpl authorizes the ssh hosts key
"known_hosts.tpl": "@cert-authority * {{.Step.SSH.HostKey.Type}} {{.Step.SSH.HostKey.Marshal | toString | b64enc}}",
// sshd_config.tpl adds the configuration to support certificates
@ -82,7 +83,7 @@ func generateTemplates(t *templates.Templates) error {
if !ok {
return errors.Errorf("template %s does not exists", t.Name)
}
if err := utils.WriteFile(filepath.Join(base, t.TemplatePath), []byte(data), 0644); err != nil {
if err := utils.WriteFile(config.StepAbs(t.TemplatePath), []byte(data), 0644); err != nil {
return err
}
}
@ -91,7 +92,7 @@ func generateTemplates(t *templates.Templates) error {
if !ok {
return errors.Errorf("template %s does not exists", t.Name)
}
if err := utils.WriteFile(filepath.Join(base, t.TemplatePath), []byte(data), 0644); err != nil {
if err := utils.WriteFile(config.StepAbs(t.TemplatePath), []byte(data), 0644); err != nil {
return err
}
}

57
templates/templates.go
View file

@ -3,10 +3,14 @@ package templates
import (
"bytes"
"io/ioutil"
"os"
"path/filepath"
"text/template"
"github.com/Masterminds/sprig"
"github.com/pkg/errors"
"github.com/smallstep/cli/config"
"github.com/smallstep/cli/utils"
)
// TemplateType defines how a template will be written in disk.
@ -17,17 +21,10 @@ const (
Snippet TemplateType = "snippet"
// File will mark a templates as a full file.
File TemplateType = "file"
// Directory will mark a template as a directory.
Directory TemplateType = "directory"
)
// Output represents the text representation of a rendered template.
type Output struct {
Name string `json:"name"`
Type TemplateType `json:"type"`
Comment string `json:"comment"`
Path string `json:"path"`
Content []byte `json:"content"`
}
// Templates is a collection of templates and variables.
type Templates struct {
SSH *SSHTemplates `json:"ssh,omitempty"`
@ -137,13 +134,14 @@ func (t *Template) Validate() error {
// template fails.
func (t *Template) Load() error {
if t.Template == nil {
b, err := ioutil.ReadFile(t.TemplatePath)
filename := config.StepAbs(t.TemplatePath)
b, err := ioutil.ReadFile(filename)
if err != nil {
return errors.Wrapf(err, "error reading %s", t.TemplatePath)
return errors.Wrapf(err, "error reading %s", filename)
}
tmpl, err := template.New(t.Name).Funcs(sprig.TxtFuncMap()).Parse(string(b))
if err != nil {
return errors.Wrapf(err, "error parsing %s", t.TemplatePath)
return errors.Wrapf(err, "error parsing %s", filename)
}
t.Template = tmpl
}
@ -179,3 +177,38 @@ func (t *Template) Output(data interface{}) (Output, error) {
Content: b,
}, nil
}
// Output represents the text representation of a rendered template.
type Output struct {
Name string `json:"name"`
Type TemplateType `json:"type"`
Comment string `json:"comment"`
Path string `json:"path"`
Content []byte `json:"content"`
}
// Write writes the Output to the filesystem as a directory, file or snippet.
func (o *Output) Write() error {
path := config.StepAbs(o.Path)
if o.Type == Directory {
return mkdir(path, 0700)
}
dir := filepath.Dir(path)
if err := mkdir(dir, 0700); err != nil {
return err
}
if o.Type == File {
return utils.WriteFile(path, o.Content, 0600)
}
return utils.WriteSnippet(path, o.Content, 0600)
}
func mkdir(path string, perm os.FileMode) error {
if err := os.MkdirAll(path, perm); err != nil {
return errors.Wrapf(err, "error creating %s", path)
}
return nil
}