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provider/google: read credentials as contents instead of path 

Building on the work in #3846, shifting the Google provider's
configuration option from `account_file` to `credentials`.
This commit is contained in:
Paul Hinze 2015-11-12 16:13:07 -06:00
parent b6aed3fec3
commit eb9a93862b
5 changed files with 75 additions and 68 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
builtin/providers/google/config.go
View File

@ -3,13 +3,12 @@ package google
import (
"encoding/json"
"fmt"
"io/ioutil"
"log"
"net/http"
"os"
"runtime"
"strings"
"github.com/hashicorp/terraform/helper/pathorcontents"
"github.com/hashicorp/terraform/terraform"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
@ -24,7 +23,7 @@ import (
// Config is the configuration structure used to instantiate the Google
// provider.
type Config struct {
AccountFile string
Credentials string
Project string
Region string
@ -44,46 +43,17 @@ func (c *Config) loadAndValidate() error {
"https://www.googleapis.com/auth/devstorage.full_control",
}
if c.AccountFile == "" {
c.AccountFile = os.Getenv("GOOGLE_ACCOUNT_FILE")
}
if c.Project == "" {
c.Project = os.Getenv("GOOGLE_PROJECT")
}
if c.Region == "" {
c.Region = os.Getenv("GOOGLE_REGION")
}
var client *http.Client
if c.AccountFile != "" {
contents := c.AccountFile
if c.Credentials != "" {
contents, _, err := pathorcontents.Read(c.Credentials)
if err != nil {
return fmt.Errorf("Error loading credentials: %s", err)
}
// Assume account_file is a JSON string
if err := parseJSON(&account, contents); err != nil {
// If account_file was not JSON, assume it is a file path instead
if _, err := os.Stat(c.AccountFile); os.IsNotExist(err) {
return fmt.Errorf(
"account_file path does not exist: %s",
c.AccountFile)
}
b, err := ioutil.ReadFile(c.AccountFile)
if err != nil {
return fmt.Errorf(
"Error reading account_file from path '%s': %s",
c.AccountFile,
err)
}
contents = string(b)
if err := parseJSON(&account, contents); err != nil {
return fmt.Errorf(
"Error parsing account file '%s': %s",
contents,
err)
}
return fmt.Errorf("Error parsing credentials '%s': %s", contents, err)
}
// Get the token for use in our requests

10
builtin/providers/google/config_test.go
View File

@ -5,11 +5,11 @@ import (
"testing"
)
const testFakeAccountFilePath = "./test-fixtures/fake_account.json"
const testFakeCredentialsPath = "./test-fixtures/fake_account.json"
func TestConfigLoadAndValidate_accountFilePath(t *testing.T) {
config := Config{
AccountFile: testFakeAccountFilePath,
Credentials: testFakeCredentialsPath,
Project: "my-gce-project",
Region: "us-central1",
}
@ -21,12 +21,12 @@ func TestConfigLoadAndValidate_accountFilePath(t *testing.T) {
}
func TestConfigLoadAndValidate_accountFileJSON(t *testing.T) {
contents, err := ioutil.ReadFile(testFakeAccountFilePath)
contents, err := ioutil.ReadFile(testFakeCredentialsPath)
if err != nil {
t.Fatalf("error: %v", err)
}
config := Config{
AccountFile: string(contents),
Credentials: string(contents),
Project: "my-gce-project",
Region: "us-central1",
}
@ -39,7 +39,7 @@ func TestConfigLoadAndValidate_accountFileJSON(t *testing.T) {
func TestConfigLoadAndValidate_accountFileJSONInvalid(t *testing.T) {
config := Config{
AccountFile: "{this is not json}",
Credentials: "{this is not json}",
Project: "my-gce-project",
Region: "us-central1",
}

54
builtin/providers/google/provider.go
View File

@ -3,8 +3,8 @@ package google
import (
"encoding/json"
"fmt"
"os"
"github.com/hashicorp/terraform/helper/pathorcontents"
"github.com/hashicorp/terraform/helper/schema"
"github.com/hashicorp/terraform/terraform"
)
@ -18,6 +18,14 @@ func Provider() terraform.ResourceProvider {
Optional: true,
DefaultFunc: schema.EnvDefaultFunc("GOOGLE_ACCOUNT_FILE", nil),
ValidateFunc: validateAccountFile,
Deprecated: "Use the credentials field instead",
},
"credentials": &schema.Schema{
Type: schema.TypeString,
Optional: true,
DefaultFunc: schema.EnvDefaultFunc("GOOGLE_CREDENTIALS", nil),
ValidateFunc: validateCredentials,
},
"project": &schema.Schema{
@ -73,8 +81,12 @@ func Provider() terraform.ResourceProvider {
}
func providerConfigure(d *schema.ResourceData) (interface{}, error) {
credentials := d.Get("credentials").(string)
if credentials == "" {
credentials = d.Get("account_file").(string)
}
config := Config{
AccountFile: d.Get("account_file").(string),
Credentials: credentials,
Project: d.Get("project").(string),
Region: d.Get("region").(string),
}
@ -97,22 +109,34 @@ func validateAccountFile(v interface{}, k string) (warnings []string, errors []e
return
}
var account accountFile
if err := json.Unmarshal([]byte(value), &account); err != nil {
warnings = append(warnings, `
account_file is not valid JSON, so we are assuming it is a file path. This
support will be removed in the future. Please update your configuration to use
${file("filename.json")} instead.`)
} else {
return
contents, wasPath, err := pathorcontents.Read(value)
if err != nil {
errors = append(errors, fmt.Errorf("Error loading Account File: %s", err))
}
if wasPath {
warnings = append(warnings, `account_file was provided as a path instead of
as file contents. This support will be removed in the future. Please update
your configuration to use ${file("filename.json")} instead.`)
}
if _, err := os.Stat(value); err != nil {
var account accountFile
if err := json.Unmarshal([]byte(contents), &account); err != nil {
errors = append(errors,
fmt.Errorf(
"account_file path could not be read from '%s': %s",
value,
err))
fmt.Errorf("account_file not valid JSON '%s': %s", contents, err))
}
return
}
func validateCredentials(v interface{}, k string) (warnings []string, errors []error) {
if v == nil || v.(string) == "" {
return
}
creds := v.(string)
var account accountFile
if err := json.Unmarshal([]byte(creds), &account); err != nil {
errors = append(errors,
fmt.Errorf("credentials are not valid JSON '%s': %s", creds, err))
}
return

4
builtin/providers/google/provider_test.go
View File

@ -29,8 +29,8 @@ func TestProvider_impl(t *testing.T) {
}
func testAccPreCheck(t *testing.T) {
if v := os.Getenv("GOOGLE_ACCOUNT_FILE"); v == "" {
t.Fatal("GOOGLE_ACCOUNT_FILE must be set for acceptance tests")
if v := os.Getenv("GOOGLE_CREDENTIALS"); v == "" {
t.Fatal("GOOGLE_CREDENTIALS must be set for acceptance tests")
}
if v := os.Getenv("GOOGLE_PROJECT"); v == "" {

29
website/source/docs/providers/google/index.html.markdown
View File

@ -19,14 +19,14 @@ Use the navigation to the left to read about the available resources.
```
# Configure the Google Cloud provider
provider "google" {
account_file = "${file("account.json")}"
project = "my-gce-project"
region = "us-central1"
credentials = "${file("account.json")}"
project = "my-gce-project"
region = "us-central1"
}
# Create a new instance
resource "google_compute_instance" "default" {
...
...
}
```
@ -34,12 +34,12 @@ resource "google_compute_instance" "default" {
The following keys can be used to configure the provider.
* `account_file` - (Required) Contents of the JSON file used to describe your
* `credentials` - (Optional) Contents of the JSON file used to describe your
account credentials, downloaded from Google Cloud Console. More details on
retrieving this file are below. The `account file` can be "" if you are running
terraform from a GCE instance with a properly-configured [Compute Engine
retrieving this file are below. Credentials may be blank if you are running
Terraform from a GCE instance with a properly-configured [Compute Engine
Service Account](https://cloud.google.com/compute/docs/authentication). This
can also be specified with the `GOOGLE_ACCOUNT_FILE` shell environment
can also be specified with the `GOOGLE_CREDENTIALS` shell environment
variable.
* `project` - (Required) The ID of the project to apply any resources to. This
@ -48,6 +48,19 @@ The following keys can be used to configure the provider.
* `region` - (Required) The region to operate under. This can also be specified
with the `GOOGLE_REGION` shell environment variable.
The following keys are supported for backwards compatibility, and may be
removed in a future version:
* `account_file` - __Deprecated: please use `credentials` instead.__
Path to or contents of the JSON file used to describe your
account credentials, downloaded from Google Cloud Console. More details on
retrieving this file are below. The `account file` can be "" if you are running
terraform from a GCE instance with a properly-configured [Compute Engine
Service Account](https://cloud.google.com/compute/docs/authentication). This
can also be specified with the `GOOGLE_ACCOUNT_FILE` shell environment
variable.
## Authentication JSON File
Authenticating with Google Cloud services requires a JSON