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config.go
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config.go
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package config
import (
"context"
"fmt"
"html/template"
"log"
"net/http"
"net/url"
"strings"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/digitalocean/godo"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/logging"
"golang.org/x/oauth2"
)
type Config struct {
Token string
APIEndpoint string
SpacesAPIEndpoint string
AccessID string
SecretKey string
RequestsPerSecond float64
TerraformVersion string
HTTPRetryMax int
HTTPRetryWaitMax float64
HTTPRetryWaitMin float64
}
type CombinedConfig struct {
client *godo.Client
spacesEndpointTemplate *template.Template
accessID string
secretKey string
}
func (c *CombinedConfig) GodoClient() *godo.Client { return c.client }
func (c *CombinedConfig) SpacesClient(region string) (*session.Session, error) {
if c.accessID == "" || c.secretKey == "" {
err := fmt.Errorf("Spaces credentials not configured")
return &session.Session{}, err
}
endpointWriter := strings.Builder{}
err := c.spacesEndpointTemplate.Execute(&endpointWriter, map[string]string{
"Region": strings.ToLower(region),
})
if err != nil {
return &session.Session{}, err
}
endpoint := endpointWriter.String()
client, err := session.NewSession(&aws.Config{
Region: aws.String("us-east-1"),
Credentials: credentials.NewStaticCredentials(c.accessID, c.secretKey, ""),
Endpoint: aws.String(endpoint)},
)
if err != nil {
return &session.Session{}, err
}
return client, nil
}
// Client() returns a new client for accessing digital ocean.
func (c *Config) Client() (*CombinedConfig, error) {
tokenSrc := oauth2.StaticTokenSource(&oauth2.Token{
AccessToken: c.Token,
})
userAgent := fmt.Sprintf("Terraform/%s", c.TerraformVersion)
var client *http.Client
var godoOpts []godo.ClientOpt
client = oauth2.NewClient(context.Background(), tokenSrc)
if c.HTTPRetryMax > 0 {
retryConfig := godo.RetryConfig{
RetryMax: c.HTTPRetryMax,
RetryWaitMin: godo.PtrTo(c.HTTPRetryWaitMin),
RetryWaitMax: godo.PtrTo(c.HTTPRetryWaitMax),
Logger: log.Default(),
}
godoOpts = []godo.ClientOpt{godo.WithRetryAndBackoffs(retryConfig)}
}
godoOpts = append(godoOpts, godo.SetUserAgent(userAgent))
if c.RequestsPerSecond > 0.0 {
godoOpts = append(godoOpts, godo.SetStaticRateLimit(c.RequestsPerSecond))
}
godoClient, err := godo.New(client, godoOpts...)
clientTransport := logging.NewTransport("DigitalOcean", godoClient.HTTPClient.Transport)
godoClient.HTTPClient.Transport = clientTransport
if err != nil {
return nil, err
}
apiURL, err := url.Parse(c.APIEndpoint)
if err != nil {
return nil, err
}
godoClient.BaseURL = apiURL
spacesEndpointTemplate, err := template.New("spaces").Parse(c.SpacesAPIEndpoint)
if err != nil {
return nil, fmt.Errorf("unable to parse spaces_endpoint '%s' as template: %s", c.SpacesAPIEndpoint, err)
}
log.Printf("[INFO] DigitalOcean Client configured for URL: %s", godoClient.BaseURL.String())
return &CombinedConfig{
client: godoClient,
spacesEndpointTemplate: spacesEndpointTemplate,
accessID: c.AccessID,
secretKey: c.SecretKey,
}, nil
}