porter/internal/config/config.go

package config

import (
	"log"
	"time"

	"github.com/joeshaw/envdecode"
)

// Conf is the configuration for the Go server
type Conf struct {
	Debug        bool `env:"DEBUG,default=false"`
	Server       ServerConf
	Db           DBConf
	K8s          K8sConf
	Redis        RedisConf
	Capabilities CapConf
}

// ServerConf is the server configuration
type ServerConf struct {
	ServerURL            string        `env:"SERVER_URL,default=http://localhost:8080"`
	Port                 int           `env:"SERVER_PORT,default=8080"`
	StaticFilePath       string        `env:"STATIC_FILE_PATH,default=/porter/static"`
	CookieName           string        `env:"COOKIE_NAME,default=porter"`
	CookieSecrets        []string      `env:"COOKIE_SECRETS,default=random_hash_key_;random_block_key"`
	TokenGeneratorSecret string        `env:"TOKEN_GENERATOR_SECRET,default=secret"`
	TimeoutRead          time.Duration `env:"SERVER_TIMEOUT_READ,default=5s"`
	TimeoutWrite         time.Duration `env:"SERVER_TIMEOUT_WRITE,default=10s"`
	TimeoutIdle          time.Duration `env:"SERVER_TIMEOUT_IDLE,default=15s"`
	IsLocal              bool          `env:"IS_LOCAL,default=false"`
	IsTesting            bool          `env:"IS_TESTING,default=false"`
	AppRootDomain        string        `env:"APP_ROOT_DOMAIN,default=porter.run"`

	DefaultApplicationHelmRepoURL string `env:"HELM_APP_REPO_URL,default=https://charts.dev.getporter.dev"`
	DefaultAddonHelmRepoURL       string `env:"HELM_ADD_ON_REPO_URL,default=https://chart-addons.dev.getporter.dev"`

	BasicLoginEnabled bool `env:"BASIC_LOGIN_ENABLED,default=true"`

	GithubClientID     string `env:"GITHUB_CLIENT_ID"`
	GithubClientSecret string `env:"GITHUB_CLIENT_SECRET"`
	GithubLoginEnabled bool   `env:"GITHUB_LOGIN_ENABLED,default=true"`

	GithubAppClientID      string `env:"GITHUB_APP_CLIENT_ID"`
	GithubAppClientSecret  string `env:"GITHUB_APP_CLIENT_SECRET"`
	GithubAppName          string `env:"GITHUB_APP_NAME"`
	GithubAppWebhookSecret string `env:"GITHUB_APP_WEBHOOK_SECRET"`
	GithubAppID            string `env:"GITHUB_APP_ID"`
	GithubAppSecretPath    string `env:"GITHUB_APP_SECRET_PATH"`

	GoogleClientID         string `env:"GOOGLE_CLIENT_ID"`
	GoogleClientSecret     string `env:"GOOGLE_CLIENT_SECRET"`
	GoogleRestrictedDomain string `env:"GOOGLE_RESTRICTED_DOMAIN"`

	SendgridAPIKey                  string `env:"SENDGRID_API_KEY"`
	SendgridPWResetTemplateID       string `env:"SENDGRID_PW_RESET_TEMPLATE_ID"`
	SendgridPWGHTemplateID          string `env:"SENDGRID_PW_GH_TEMPLATE_ID"`
	SendgridVerifyEmailTemplateID   string `env:"SENDGRID_VERIFY_EMAIL_TEMPLATE_ID"`
	SendgridProjectInviteTemplateID string `env:"SENDGRID_INVITE_TEMPLATE_ID"`
	SendgridSenderEmail             string `env:"SENDGRID_SENDER_EMAIL"`

	SlackClientID     string `env:"SLACK_CLIENT_ID"`
	SlackClientSecret string `env:"SLACK_CLIENT_SECRET"`

	DOClientID                 string `env:"DO_CLIENT_ID"`
	DOClientSecret             string `env:"DO_CLIENT_SECRET"`
	ProvisionerImageTag        string `env:"PROV_IMAGE_TAG,default=latest"`
	ProvisionerImagePullSecret string `env:"PROV_IMAGE_PULL_SECRET"`
	SegmentClientKey           string `env:"SEGMENT_CLIENT_KEY"`

	ProvisionerCluster string `env:"PROVISIONER_CLUSTER"`
	IngressCluster     string `env:"INGRESS_CLUSTER"`
	SelfKubeconfig     string `env:"SELF_KUBECONFIG"`
}

// DBConf is the database configuration: if generated from environment variables,
// it assumes the default docker-compose configuration is used
type DBConf struct {
	// EncryptionKey is the key to use for sensitive values that are encrypted at rest
	EncryptionKey string `env:"ENCRYPTION_KEY,default=__random_strong_encryption_key__"`

	Host     string `env:"DB_HOST,default=postgres"`
	Port     int    `env:"DB_PORT,default=5432"`
	Username string `env:"DB_USER,default=porter"`
	Password string `env:"DB_PASS,default=porter"`
	DbName   string `env:"DB_NAME,default=porter"`
	ForceSSL bool   `env:"DB_FORCE_SSL,default=false"`

	SQLLite     bool   `env:"SQL_LITE,default=false"`
	SQLLitePath string `env:"SQL_LITE_PATH,default=/porter/porter.db"`
}

// K8sConf is the global configuration for the k8s agents
type K8sConf struct {
	IsTesting bool `env:"K8S_IS_TESTING,default=false"`
}

type CapConf struct {
	Provisioner bool `env:"PROVISIONER_ENABLED,default=true"`
	Github      bool `env:"GITHUB_ENABLED,default=true"`
	Google      bool
}

// FromEnv generates a configuration from environment variables
func FromEnv() *Conf {
	var c Conf

	if err := envdecode.StrictDecode(&c); err != nil {
		log.Fatalf("Failed to decode server conf: %s", err)
	}

	if c.Server.GoogleClientID != "" && c.Server.GoogleClientSecret != "" {
		c.Capabilities.Google = true
	}

	return &c
}