Adding Doppler Provider

Makefile

@@ -6,6 +6,7 @@ mocks:
 	mockgen -source pkg/providers/aws_ssm.go -destination pkg/providers/mock_providers/aws_ssm_mock.go
 	mockgen -source pkg/providers/consul.go -destination pkg/providers/mock_providers/consul_mock.go
 	mockgen -source pkg/providers/dotenv.go -destination pkg/providers/mock_providers/dotenv_mock.go
+	mockgen -source pkg/providers/doppler.go -destination pkg/providers/mock_providers/doppler_mock.go
 	mockgen -source pkg/providers/etcd.go -destination pkg/providers/mock_providers/etcd_mock.go
 	mockgen -source pkg/providers/google_secretmanager.go -destination pkg/providers/mock_providers/google_secretmanager_mock.go
 	mockgen -source pkg/providers/hashicorp_vault.go -destination pkg/providers/mock_providers/hashicorp_vault_mock.go

README.md

@@ -411,6 +411,32 @@ dotenv:
       path: ~/my-dot-env.env
 ```
 
+## Doppler
+
+### Authentication
+
+Install the [doppler cli][dopplercli] then run `doppler login`. You'll also need to configure your desired "project" for any given directory using `doppler configure`. Alternatively, you can set a global project by running `doppler configure set project <my-project>` from your home directory.
+
+### Features
+
+* Sync - `yes`
+* Mapping - `yes`
+* Key format
+  * `env` - env key like
+
+### Example Config
+
+```yaml
+doppler:
+  env_sync:
+    path: prd
+  env:
+    MG_KEY:
+      path: prd
+      field: OTHER_MG_KEY # (optional)
+```
+
+[dopplercli]: https://docs.doppler.com/docs/cli
 
 # Security Model
 

go.mod

@@ -10,6 +10,7 @@ require (
 	github.com/Azure/go-autorest/autorest/azure/auth v0.5.7 // indirect
 	github.com/Azure/go-autorest/autorest/to v0.4.0 // indirect
 	github.com/Azure/go-autorest/autorest/validation v0.3.1 // indirect
+	github.com/DopplerHQ/cli v0.0.0-20210309042056-414bede8a50e
 	github.com/alecthomas/assert v0.0.0-20170929043011-405dbfeb8e38
 	github.com/alecthomas/colour v0.1.0 // indirect
 	github.com/alecthomas/kong v0.2.15

pkg/providers.go

@@ -27,6 +27,7 @@ func (p *BuiltinProviders) ProviderHumanToMachine() map[string]string {
 		".env":                     "dotenv",
 		"Vercel":                   "vercel",
 		"Azure Key Vault":          "azure_keyvault",
+		"Doppler":                  "doppler",
 	}
 }
 
@@ -52,6 +53,8 @@ func (p *BuiltinProviders) GetProvider(name string) (core.Provider, error) {
 		return providers.NewVercel()
 	case "azure_keyvault":
 		return providers.NewAzureKeyVault()
+	case "doppler":
+		return providers.NewDoppler()
 	default:
 		return nil, fmt.Errorf("provider %s does not exist", name)
 	}

pkg/providers/doppler.go

@@ -0,0 +1,99 @@
+package providers
+
+import (
+	"fmt"
+	"sort"
+
+	"github.com/DopplerHQ/cli/pkg/configuration"
+	"github.com/DopplerHQ/cli/pkg/http"
+	"github.com/DopplerHQ/cli/pkg/models"
+	"github.com/DopplerHQ/cli/pkg/utils"
+	"github.com/spectralops/teller/pkg/core"
+)
+
+type DopplerClient interface {
+	GetSecrets(host string, verifyTLS bool, apiKey string, project string, config string) ([]byte, http.Error)
+}
+
+type dopplerClient struct{}
+
+func (dopplerClient) GetSecrets(host string, verifyTLS bool, apiKey, project, config string) ([]byte, http.Error) {
+	return http.GetSecrets(host, verifyTLS, apiKey, project, config)
+}
+
+type Doppler struct {
+	client DopplerClient
+	config models.ScopedOptions
+}
+
+func NewDoppler() (core.Provider, error) {
+	configuration.Setup()
+	configuration.LoadConfig()
+
+	return &Doppler{
+		client: dopplerClient{},
+		config: configuration.Get(configuration.Scope),
+	}, nil
+}
+
+func (h *Doppler) Name() string {
+	return "doppler"
+}
+
+func (h *Doppler) GetMapping(p core.KeyPath) ([]core.EnvEntry, error) {
+	s, err := h.getConfig(p.Path)
+	if err != nil {
+		return nil, err
+	}
+
+	entries := []core.EnvEntry{}
+	for k, v := range s {
+		entries = append(entries, core.EnvEntry{
+			Key:          k,
+			Value:        v.ComputedValue,
+			Provider:     h.Name(),
+			ResolvedPath: p.Path,
+		})
+	}
+	sort.Sort(core.EntriesByKey(entries))
+	return entries, nil
+}
+
+func (h *Doppler) Get(p core.KeyPath) (*core.EnvEntry, error) {
+	s, err := h.getConfig(p.Path)
+	if err != nil {
+		return nil, err
+	}
+
+	key := p.Env
+	if p.Field != "" {
+		key = p.Field
+	}
+
+	v, ok := s[key]
+	if !ok {
+		return nil, fmt.Errorf("field at '%s' does not exist", p.Path)
+	}
+
+	return &core.EnvEntry{
+		Key:          p.Env,
+		Value:        v.ComputedValue,
+		ResolvedPath: p.Path,
+		Provider:     h.Name(),
+	}, nil
+}
+
+func (h *Doppler) getConfig(config string) (map[string]models.ComputedSecret, error) {
+	r, herr := h.client.GetSecrets(
+		h.config.APIHost.Value,
+		utils.GetBool(h.config.VerifyTLS.Value, true),
+		h.config.Token.Value,
+		h.config.EnclaveProject.Value,
+		config,
+	)
+	if !herr.IsNil() {
+		return nil, herr.Err
+	}
+
+	return models.ParseSecrets(r)
+}

pkg/providers/doppler_test.go

@@ -0,0 +1,38 @@
+package providers
+
+import (
+	"testing"
+
+	"github.com/DopplerHQ/cli/pkg/http"
+	"github.com/DopplerHQ/cli/pkg/models"
+	"github.com/golang/mock/gomock"
+	"github.com/spectralops/teller/pkg/providers/mock_providers"
+)
+
+func TestDoppler(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	// Assert that Bar is invoked.
+	defer ctrl.Finish()
+	client := mock_providers.NewMockDopplerClient(ctrl)
+	path := "settings/prod/billing-svc"
+	pathmap := "settings/prod/billing-svc/all"
+	out := []byte(`{
+		"secrets": {
+			"MG_KEY": {
+				"computed": "shazam"
+			},
+			"SMTP_PASS": {
+				"computed": "mailman"
+			}
+		}
+	}`)
+
+	client.EXPECT().GetSecrets(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Eq(path)).Return(out, http.Error{}).AnyTimes()
+	client.EXPECT().GetSecrets(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Eq(pathmap)).Return(out, http.Error{}).AnyTimes()
+
+	s := Doppler{
+		client: client,
+		config: models.ScopedOptions{},
+	}
+	AssertProvider(t, &s, true)
+}

pkg/wizard_template.go

@@ -140,4 +140,14 @@ providers:
       FOO_BAR:
         path: foobar
 {{end}}
+
+{{- if index .ProviderKeys "doppler" }}
+  # set your doppler project with "doppler configure set project <my-project>"
+  doppler:
+    env_sync:
+      path: prd
+    env:
+      FOO_BAR:
+        path: prd
+{{end}}
 `