/
config.go
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/
config.go
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package config
import (
"errors"
"fmt"
"io/ioutil"
"net/http"
"os"
tfversion "github.com/hashicorp/terraform/version"
"github.com/jessevdk/go-flags"
log "github.com/sirupsen/logrus"
"gopkg.in/yaml.v2"
)
type configFlags struct {
Version bool `short:"V" long:"version" description:"Display version."`
ConfigFilePath string `short:"c" long:"config-file" env:"CONFIG_FILE" description:"Config File path"`
Provider ProviderConfig `group:"General Provider Options" yaml:"provider"`
Log LogConfig `group:"Logging Options" yaml:"log"`
DB DBConfig `group:"Database Options" yaml:"database"`
AWS AWSConfig `group:"AWS Options" yaml:"aws"`
S3 S3BucketConfig `group:"S3 Options" yaml:"s3"`
TFE TFEConfig `group:"Terraform Enterprise Options" yaml:"tfe"`
GCP GCPConfig `group:"Google Cloud Platform Options" yaml:"gcp"`
Gitlab GitlabConfig `group:"GitLab Options" yaml:"gitlab"`
Web WebConfig `group:"Web" yaml:"web"`
}
// LogConfig stores the log configuration
type LogConfig struct {
Level string `short:"l" long:"log-level" env:"TERRABOARD_LOG_LEVEL" yaml:"level" description:"Set log level ('debug', 'info', 'warn', 'error', 'fatal', 'panic')." default:"info"`
Format string `long:"log-format" yaml:"format" env:"TERRABOARD_LOG_FORMAT" description:"Set log format ('plain', 'json')." default:"plain"`
}
// DBConfig stores the database configuration
type DBConfig struct {
Host string `long:"db-host" env:"DB_HOST" yaml:"host" description:"Database host." default:"db"`
Port uint16 `long:"db-port" env:"DB_PORT" yaml:"port" description:"Database port." default:"5432"`
User string `long:"db-user" env:"DB_USER" yaml:"user" description:"Database user." default:"gorm"`
Password string `long:"db-password" env:"DB_PASSWORD" yaml:"password" description:"Database password."`
Name string `long:"db-name" env:"DB_NAME" yaml:"name" description:"Database name." default:"gorm"`
SSLMode string `long:"db-sslmode" env:"DB_SSLMODE" yaml:"sslmode" description:"Database SSL mode." default:"require"`
NoSync bool `long:"no-sync" yaml:"no-sync" description:"Do not sync database."`
SyncInterval uint16 `long:"sync-interval" yaml:"sync-interval" description:"DB sync interval (in minutes)" default:"1"`
}
// S3BucketConfig stores the S3 bucket configuration
type S3BucketConfig struct {
Bucket string `long:"s3-bucket" env:"AWS_BUCKET" yaml:"bucket" description:"AWS S3 bucket."`
KeyPrefix string `long:"key-prefix" env:"AWS_KEY_PREFIX" yaml:"key-prefix" description:"AWS Key Prefix."`
FileExtension []string `long:"file-extension" env:"AWS_FILE_EXTENSION" env-delim:"," yaml:"file-extension" description:"File extension(s) of state files." default:".tfstate"`
ForcePathStyle bool `long:"force-path-style" env:"AWS_FORCE_PATH_STYLE" yaml:"force-path-style" description:"Force path style S3 bucket calls."`
}
// AWSConfig stores the DynamoDB table and S3 Bucket configuration
type AWSConfig struct {
AccessKey string `long:"aws-access-key" env:"AWS_ACCESS_KEY_ID" yaml:"access-key" description:"AWS account access key."`
SecretAccessKey string `long:"aws-secret-access-key" env:"AWS_SECRET_ACCESS_KEY" yaml:"secret-access-key" description:"AWS secret account access key."`
SessionToken string `long:"aws-session-token" env:"AWS_SESSION_TOKEN" yaml:"session-token" description:"AWS session token."`
DynamoDBTable string `long:"dynamodb-table" env:"AWS_DYNAMODB_TABLE" yaml:"dynamodb-table" description:"AWS DynamoDB table for locks."`
S3 []S3BucketConfig `group:"S3 Options" yaml:"s3"`
Endpoint string `long:"aws-endpoint" env:"AWS_ENDPOINT" yaml:"endpoint" description:"AWS endpoint."`
Region string `long:"aws-region" env:"AWS_REGION" yaml:"region" description:"AWS region."`
APPRoleArn string `long:"aws-role-arn" env:"APP_ROLE_ARN" yaml:"app-role-arn" description:"Role ARN to Assume."`
ExternalID string `long:"aws-external-id" env:"AWS_EXTERNAL_ID" yaml:"external-id" description:"External ID to use when assuming role."`
}
// TFEConfig stores the Terraform Enterprise configuration
type TFEConfig struct {
Address string `long:"tfe-address" env:"TFE_ADDRESS" yaml:"address" description:"Terraform Enterprise address for states access"`
Token string `long:"tfe-token" env:"TFE_TOKEN" yaml:"token" description:"Terraform Enterprise Token for states access"`
Organization string `long:"tfe-organization" env:"TFE_ORGANIZATION" yaml:"organization" description:"Terraform Enterprise organization for states access"`
}
// GCPConfig stores the Google Cloud configuration
type GCPConfig struct {
HTTPClient *http.Client
GCSBuckets []string `long:"gcs-bucket" yaml:"gcs-bucket" description:"Google Cloud bucket to search"`
GCPSAKey string `long:"gcp-sa-key-path" env:"GCP_SA_KEY_PATH" yaml:"gcp-sa-key-path" description:"The path to the service account to use to connect to Google Cloud Platform"`
}
// GitlabConfig stores the GitLab configuration
type GitlabConfig struct {
Address string `long:"gitlab-address" env:"GITLAB_ADDRESS" yaml:"address" description:"GitLab address (root)" default:"https://gitlab.com"`
Token string `long:"gitlab-token" env:"GITLAB_TOKEN" yaml:"token" description:"Token to authenticate upon GitLab"`
}
// WebConfig stores the UI interface parameters
type WebConfig struct {
Port uint16 `short:"p" long:"port" env:"TERRABOARD_PORT" yaml:"port" description:"Port to listen on." default:"8080"`
SwaggerPort uint16 `long:"swagger-port" env:"TERRABOARD_SWAGGER_PORT" yaml:"swagger-port" description:"Port for swagger to listen on." default:"8081"`
BaseURL string `long:"base-url" env:"TERRABOARD_BASE_URL" yaml:"base-url" description:"Base URL." default:"/"`
LogoutURL string `long:"logout-url" env:"TERRABOARD_LOGOUT_URL" yaml:"logout-url" description:"Logout URL."`
}
// ProviderConfig stores genral provider parameters
type ProviderConfig struct {
NoVersioning bool `long:"no-versioning" env:"TERRABOARD_NO_VERSIONING" yaml:"no-versioning" description:"Disable versioning support from Terraboard (useful for S3 compatible providers like MinIO)"`
NoLocks bool `long:"no-locks" env:"TERRABOARD_NO_LOCKS" yaml:"no-locks" description:"Disable locks support from Terraboard (useful for S3 compatible providers like MinIO)"`
}
// Config stores the handler's configuration and UI interface parameters
type Config struct {
Version bool `short:"V" long:"version" description:"Display version."`
ConfigFilePath string `short:"c" long:"config-file" env:"CONFIG_FILE" description:"Config File path"`
Provider ProviderConfig `group:"General Provider Options" yaml:"provider"`
Log LogConfig `group:"Logging Options" yaml:"log"`
DB DBConfig `group:"Database Options" yaml:"database"`
AWS []AWSConfig `group:"AWS Options" yaml:"aws"`
TFE []TFEConfig `group:"Terraform Enterprise Options" yaml:"tfe"`
GCP []GCPConfig `group:"Google Cloud Platform Options" yaml:"gcp"`
Gitlab []GitlabConfig `group:"GitLab Options" yaml:"gitlab"`
Web WebConfig `group:"Web" yaml:"web"`
}
// LoadConfigFromYaml loads the config from config file
func (c *Config) LoadConfigFromYaml(filename string) *Config {
fmt.Printf("Loading config from %s\n", filename)
yamlFile, err := ioutil.ReadFile(filename)
if err != nil {
log.Printf("yamlFile.Get err #%v ", err)
}
err = yaml.Unmarshal(yamlFile, c)
if err != nil {
log.Fatalf("Unmarshal err: %v", err)
}
c.ConfigFilePath = filename
return c
}
// Parse flags and env variables to given struct using go-flags
// parser
func parseStructFlagsAndEnv() configFlags {
var tmpConfig configFlags
parser := flags.NewParser(&tmpConfig, flags.Default)
if _, err := parser.Parse(); err != nil {
if flagsErr, ok := err.(*flags.Error); ok && flagsErr.Type == flags.ErrHelp {
os.Exit(0)
}
log.Fatalf("Failed to parse flags: %s", err)
}
return tmpConfig
}
// LoadConfig loads the config from flags & environment
func LoadConfig(version string) *Config {
var c Config
parsedConfig := parseStructFlagsAndEnv()
if parsedConfig.Version {
fmt.Printf("Terraboard v%v (built for Terraform v%v)\n", version, tfversion.Version)
os.Exit(0)
}
c = Config{
Version: parsedConfig.Version,
ConfigFilePath: parsedConfig.ConfigFilePath,
Provider: parsedConfig.Provider,
Log: parsedConfig.Log,
DB: parsedConfig.DB,
AWS: []AWSConfig{parsedConfig.AWS},
TFE: []TFEConfig{parsedConfig.TFE},
GCP: []GCPConfig{parsedConfig.GCP},
Gitlab: []GitlabConfig{parsedConfig.Gitlab},
Web: parsedConfig.Web,
}
c.AWS[0].S3 = append(c.AWS[0].S3, parsedConfig.S3)
if parsedConfig.ConfigFilePath != "" {
if _, err := os.Stat(parsedConfig.ConfigFilePath); err == nil {
c.LoadConfigFromYaml(parsedConfig.ConfigFilePath)
} else {
fmt.Printf("File %s doesn't exists!\n", c.ConfigFilePath)
os.Exit(1)
}
}
return &c
}
// SetupLogging sets up logging for Terraboard
func (c Config) SetupLogging() (err error) {
switch c.Log.Level {
case "debug":
log.SetLevel(log.DebugLevel)
case "info":
log.SetLevel(log.InfoLevel)
case "warn":
log.SetLevel(log.WarnLevel)
case "error":
log.SetLevel(log.ErrorLevel)
case "fatal":
log.SetLevel(log.FatalLevel)
case "panic":
log.SetLevel(log.PanicLevel)
default:
errMsg := fmt.Sprintf("Wrong log level '%v'", c.Log.Level)
return errors.New(errMsg)
}
switch c.Log.Format {
case "plain":
case "json":
log.SetFormatter(&log.JSONFormatter{})
default:
errMsg := fmt.Sprintf("Wrong log format '%v'", c.Log.Format)
return errors.New(errMsg)
}
return
}