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resource_ignition_file.go
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/
resource_ignition_file.go
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package ignition
import (
"encoding/base64"
"fmt"
"github.com/coreos/ignition/config/types"
"github.com/hashicorp/terraform/helper/schema"
)
func resourceFile() *schema.Resource {
return &schema.Resource{
Exists: resourceFileExists,
Read: resourceFileRead,
Schema: map[string]*schema.Schema{
"filesystem": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"path": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"content": &schema.Schema{
Type: schema.TypeList,
Optional: true,
ForceNew: true,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"mime": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
Default: "text/plain",
},
"content": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
},
},
},
"source": &schema.Schema{
Type: schema.TypeList,
Optional: true,
ForceNew: true,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"source": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"compression": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"verification": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
},
},
},
"mode": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
ForceNew: true,
},
"uid": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
ForceNew: true,
},
"gid": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
ForceNew: true,
},
},
}
}
func resourceFileRead(d *schema.ResourceData, meta interface{}) error {
id, err := buildFile(d, meta.(*cache))
if err != nil {
return err
}
d.SetId(id)
return nil
}
func resourceFileExists(d *schema.ResourceData, meta interface{}) (bool, error) {
id, err := buildFile(d, meta.(*cache))
if err != nil {
return false, err
}
return id == d.Id(), nil
}
func buildFile(d *schema.ResourceData, c *cache) (string, error) {
_, hasContent := d.GetOk("content")
_, hasSource := d.GetOk("source")
if hasContent && hasSource {
return "", fmt.Errorf("content and source options are incompatible")
}
if !hasContent && !hasSource {
return "", fmt.Errorf("content or source options must be present")
}
var compression types.Compression
var source types.Url
var hash *types.Hash
var err error
if hasContent {
source, err = encodeDataURL(
d.Get("content.0.mime").(string),
d.Get("content.0.content").(string),
)
if err != nil {
return "", err
}
}
if hasSource {
source, err = buildURL(d.Get("source.0.source").(string))
if err != nil {
return "", err
}
compression = types.Compression(d.Get("source.0.compression").(string))
h, err := buildHash(d.Get("source.0.verification").(string))
if err != nil {
return "", err
}
hash = &h
}
return c.addFile(&types.File{
Filesystem: d.Get("filesystem").(string),
Path: types.Path(d.Get("path").(string)),
Contents: types.FileContents{
Compression: compression,
Source: source,
Verification: types.Verification{
Hash: hash,
},
},
User: types.FileUser{
Id: d.Get("uid").(int),
},
Group: types.FileGroup{
Id: d.Get("gid").(int),
},
Mode: types.FileMode(d.Get("mode").(int)),
}), nil
}
func encodeDataURL(mime, content string) (types.Url, error) {
base64 := base64.StdEncoding.EncodeToString([]byte(content))
return buildURL(
fmt.Sprintf("data:%s;charset=utf-8;base64,%s", mime, base64),
)
}