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mv env var and flag handling into conf package
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| package conf | ||
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| import ( | ||
| "flag" | ||
| "log" | ||
| "os" | ||
| "strconv" | ||
| "time" | ||
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| k8sresource "k8s.io/apimachinery/pkg/api/resource" | ||
| ) | ||
|
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| type S3ndConf struct { | ||
| Host *string | ||
| Port *int | ||
| EndpointUrl *string | ||
| UploadMaxParallel *int64 | ||
| UploadTimeout *time.Duration | ||
| QueueTimeout *time.Duration | ||
| UploadTries *int | ||
| UploadPartsize *k8sresource.Quantity | ||
| UploadBwlimit *k8sresource.Quantity | ||
| UploadWriteBufferSize *k8sresource.Quantity | ||
| } | ||
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| // Parse the environment variables and flags. If a flag is not set, the | ||
| // environment variable is used. Errors are fatal. | ||
| func NewConf() S3ndConf { | ||
| conf := S3ndConf{} | ||
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| // start flags | ||
| conf.Host = flag.String("host", os.Getenv("S3ND_HOST"), "S3 Daemon Host (S3ND_HOST)") | ||
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| defaultPort, _ := strconv.Atoi(os.Getenv("S3ND_PORT")) | ||
| if defaultPort == 0 { | ||
| defaultPort = 15555 | ||
| } | ||
| conf.Port = flag.Int("port", defaultPort, "S3 Daemon Port (S3ND_PORT)") | ||
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| conf.EndpointUrl = flag.String("endpoint-url", os.Getenv("S3ND_ENDPOINT_URL"), "S3 Endpoint URL (S3ND_ENDPOINT_URL)") | ||
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| var defaultUploadMaxParallel int64 | ||
| defaultUploadMaxParallel, _ = strconv.ParseInt(os.Getenv("S3ND_UPLOAD_MAX_PARALLEL"), 10, 64) | ||
| if defaultUploadMaxParallel == 0 { | ||
| defaultUploadMaxParallel = 100 | ||
| } | ||
| conf.UploadMaxParallel = flag.Int64("upload-max-parallel", defaultUploadMaxParallel, "Maximum number of parallel object uploads (S3ND_UPLOAD_MAX_PARALLEL)") | ||
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| defaultUploadTimeout := os.Getenv("S3ND_UPLOAD_TIMEOUT") | ||
| if defaultUploadTimeout == "" { | ||
| defaultUploadTimeout = "10s" | ||
| } | ||
| uploadTimeout := flag.String("upload-timeout", defaultUploadTimeout, "Upload Timeout (S3ND_UPLOAD_TIMEOUT)") | ||
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| defaultQueueTimeout := os.Getenv("S3ND_QUEUE_TIMEOUT") | ||
| if defaultQueueTimeout == "" { | ||
| defaultQueueTimeout = "10s" | ||
| } | ||
| queueTimeout := flag.String("queue-timeout", defaultQueueTimeout, "Queue Timeout waiting for transfer to start (S3ND_QUEUE_TIMEOUT)") | ||
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| defaultUploadTries, _ := strconv.Atoi(os.Getenv("S3ND_UPLOAD_TRIES")) | ||
| if defaultUploadTries == 0 { | ||
| defaultUploadTries = 1 | ||
| } | ||
| conf.UploadTries = flag.Int("upload-tries", defaultUploadTries, "Max number of upload tries (S3ND_UPLOAD_TRIES)") | ||
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| defaultUploadPartsize := os.Getenv("S3ND_UPLOAD_PARTSIZE") | ||
| if defaultUploadPartsize == "" { | ||
| defaultUploadPartsize = "5Mi" | ||
| } | ||
| uploadPartsizeRaw := flag.String("upload-partsize", defaultUploadPartsize, "Upload Part Size (S3ND_UPLOAD_PARTSIZE)") | ||
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| defaultUploadBwlimit := os.Getenv("S3ND_UPLOAD_BWLIMIT") | ||
| if defaultUploadBwlimit == "" { | ||
| defaultUploadBwlimit = "0" | ||
| } | ||
| uploadBwlimitRaw := flag.String("upload-bwlimit", defaultUploadBwlimit, "Upload bandwidth limit in bits per second (S3ND_UPLOAD_BWLIMIT)") | ||
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| defaultUploadWriteBufferSize := os.Getenv("S3ND_UPLOAD_WRITE_BUFFER_SIZE") | ||
| if defaultUploadWriteBufferSize == "" { | ||
| defaultUploadWriteBufferSize = "64Ki" | ||
| } | ||
| uploadWriteBufferSizeRaw := flag.String("upload-write-buffer-size", defaultUploadWriteBufferSize, "Upload Write Buffer Size (S3ND_UPLOAD_WRITE_BUFFER_SIZE)") | ||
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| flag.Parse() | ||
| // end flags | ||
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| if *conf.EndpointUrl == "" { | ||
| log.Fatal("S3ND_ENDPOINT_URL is required") | ||
| } | ||
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| uploadTimeoutDuration, err := time.ParseDuration(*uploadTimeout) | ||
| if err != nil { | ||
| log.Fatal("S3ND_UPLOAD_TIMEOUT is invalid") | ||
| } | ||
| conf.UploadTimeout = &uploadTimeoutDuration | ||
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| queueTimeoutDuration, err := time.ParseDuration(*queueTimeout) | ||
| if err != nil { | ||
| log.Fatal("S3ND_QUEUE_TIMEOUT is invalid") | ||
| } | ||
| conf.QueueTimeout = &queueTimeoutDuration | ||
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| uploadPartsize, err := k8sresource.ParseQuantity(*uploadPartsizeRaw) | ||
| if err != nil { | ||
| log.Fatal("S3ND_UPLOAD_PARTSIZE is invalid") | ||
| } | ||
| conf.UploadPartsize = &uploadPartsize | ||
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| uploadBwlimit, err := k8sresource.ParseQuantity(*uploadBwlimitRaw) | ||
| if err != nil { | ||
| log.Fatal("S3ND_UPLOAD_BWLIMIT is invalid") | ||
| } | ||
| conf.UploadBwlimit = &uploadBwlimit | ||
|
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| uploadWriteBufferSize, err := k8sresource.ParseQuantity(*uploadWriteBufferSizeRaw) | ||
| if err != nil { | ||
| log.Fatal("S3ND_UPLOAD_WRITE_BUFFER_SIZE is invalid") | ||
| } | ||
| conf.UploadWriteBufferSize = &uploadWriteBufferSize | ||
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| log.Println("S3ND_HOST:", *conf.Host) | ||
| log.Println("S3ND_PORT:", *conf.Port) | ||
| log.Println("S3ND_ENDPOINT_URL:", *conf.EndpointUrl) | ||
| log.Println("S3ND_UPLOAD_MAX_PARALLEL:", *conf.UploadMaxParallel) | ||
| log.Println("S3ND_UPLOAD_TIMEOUT:", *conf.UploadTimeout) | ||
| log.Println("S3ND_QUEUE_TIMEOUT:", *conf.QueueTimeout) | ||
| log.Println("S3ND_UPLOAD_TRIES:", *conf.UploadTries) | ||
| log.Println("S3ND_UPLOAD_PARTSIZE:", conf.UploadPartsize.String()) | ||
| log.Println("S3ND_UPLOAD_BWLIMIT:", conf.UploadBwlimit.String()) | ||
| log.Println("S3ND_UPLOAD_WRITE_BUFFER_SIZE:", conf.UploadWriteBufferSize.String()) | ||
|
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| return conf | ||
| } |
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