Read fetches gateway server configuration from environmental variables
(hasEnv HasEnv)
| 55 | |
| 56 | // Read fetches gateway server configuration from environmental variables |
| 57 | func (ReadConfig) Read(hasEnv HasEnv) (*GatewayConfig, error) { |
| 58 | cfg := GatewayConfig{ |
| 59 | PrometheusHost: "prometheus", |
| 60 | PrometheusPort: 9090, |
| 61 | } |
| 62 | |
| 63 | defaultDuration := time.Second * 60 |
| 64 | |
| 65 | cfg.ReadTimeout = parseIntOrDurationValue(hasEnv.Getenv("read_timeout"), defaultDuration) |
| 66 | cfg.WriteTimeout = parseIntOrDurationValue(hasEnv.Getenv("write_timeout"), defaultDuration) |
| 67 | cfg.UpstreamTimeout = parseIntOrDurationValue(hasEnv.Getenv("upstream_timeout"), defaultDuration) |
| 68 | |
| 69 | if len(hasEnv.Getenv("functions_provider_url")) > 0 { |
| 70 | var err error |
| 71 | cfg.FunctionsProviderURL, err = url.Parse(hasEnv.Getenv("functions_provider_url")) |
| 72 | if err != nil { |
| 73 | return nil, fmt.Errorf("if functions_provider_url is provided, then it should be a valid URL, error: %s", err) |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | if len(hasEnv.Getenv("logs_provider_url")) > 0 { |
| 78 | var err error |
| 79 | cfg.LogsProviderURL, err = url.Parse(hasEnv.Getenv("logs_provider_url")) |
| 80 | if err != nil { |
| 81 | return nil, fmt.Errorf("if logs_provider_url is provided, then it should be a valid URL, error: %s", err) |
| 82 | } |
| 83 | } else if cfg.FunctionsProviderURL != nil { |
| 84 | cfg.LogsProviderURL, _ = url.Parse(cfg.FunctionsProviderURL.String()) |
| 85 | } |
| 86 | |
| 87 | faasNATSAddress := hasEnv.Getenv("faas_nats_address") |
| 88 | if len(faasNATSAddress) > 0 { |
| 89 | cfg.NATSAddress = &faasNATSAddress |
| 90 | } |
| 91 | |
| 92 | faasNATSPort := hasEnv.Getenv("faas_nats_port") |
| 93 | if len(faasNATSPort) > 0 { |
| 94 | port, err := strconv.Atoi(faasNATSPort) |
| 95 | if err == nil { |
| 96 | cfg.NATSPort = &port |
| 97 | } else { |
| 98 | return nil, fmt.Errorf("faas_nats_port invalid number: %s", faasNATSPort) |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | faasNATSClusterName := hasEnv.Getenv("faas_nats_cluster_name") |
| 103 | if len(faasNATSClusterName) > 0 { |
| 104 | cfg.NATSClusterName = &faasNATSClusterName |
| 105 | } else { |
| 106 | v := "faas-cluster" |
| 107 | cfg.NATSClusterName = &v |
| 108 | } |
| 109 | |
| 110 | faasNATSChannel := hasEnv.Getenv("faas_nats_channel") |
| 111 | if len(faasNATSChannel) > 0 { |
| 112 | cfg.NATSChannel = &faasNATSChannel |
| 113 | } else { |
| 114 | v := "faas-request" |