1 // Copyright (C) The Arvados Authors. All rights reserved.
3 // SPDX-License-Identifier: AGPL-3.0
15 "git.curoverse.com/arvados.git/sdk/go/arvados"
16 log "github.com/Sirupsen/logrus"
30 BlobSignatureTTL arvados.Duration
31 BlobSigningKeyFile string
32 RequireSignatures bool
33 SystemAuthTokenFile string
35 TrashLifetime arvados.Duration
36 TrashCheckInterval arvados.Duration
41 systemAuthToken string
42 debugLogf func(string, ...interface{})
45 var theConfig = DefaultConfig()
47 const rfc3339NanoFixed = "2006-01-02T15:04:05.000000000Z07:00"
49 // DefaultConfig returns the default configuration.
50 func DefaultConfig() *Config {
55 RequireSignatures: true,
56 BlobSignatureTTL: arvados.Duration(14 * 24 * time.Hour),
57 TrashLifetime: arvados.Duration(14 * 24 * time.Hour),
58 TrashCheckInterval: arvados.Duration(24 * time.Hour),
63 // Start should be called exactly once: after setting all public
64 // fields, and before using the config.
65 func (cfg *Config) Start() error {
67 log.SetLevel(log.DebugLevel)
68 cfg.debugLogf = log.Printf
69 cfg.debugLogf("debugging enabled")
71 cfg.debugLogf = func(string, ...interface{}) {}
74 switch strings.ToLower(cfg.LogFormat) {
76 log.SetFormatter(&log.TextFormatter{
78 TimestampFormat: rfc3339NanoFixed,
81 log.SetFormatter(&log.JSONFormatter{
82 TimestampFormat: rfc3339NanoFixed,
85 return fmt.Errorf(`unsupported log format %q (try "text" or "json")`, cfg.LogFormat)
88 if cfg.MaxBuffers < 0 {
89 return fmt.Errorf("MaxBuffers must be greater than zero")
91 bufs = newBufferPool(cfg.MaxBuffers, BlockSize)
93 if cfg.MaxRequests < 1 {
94 cfg.MaxRequests = cfg.MaxBuffers * 2
95 log.Printf("MaxRequests <1 or not specified; defaulting to MaxBuffers * 2 == %d", cfg.MaxRequests)
98 if cfg.BlobSigningKeyFile != "" {
99 buf, err := ioutil.ReadFile(cfg.BlobSigningKeyFile)
101 return fmt.Errorf("reading blob signing key file: %s", err)
103 cfg.blobSigningKey = bytes.TrimSpace(buf)
104 if len(cfg.blobSigningKey) == 0 {
105 return fmt.Errorf("blob signing key file %q is empty", cfg.BlobSigningKeyFile)
107 } else if cfg.RequireSignatures {
108 return fmt.Errorf("cannot enable RequireSignatures (-enforce-permissions) without a blob signing key")
110 log.Println("Running without a blob signing key. Block locators " +
111 "returned by this server will not be signed, and will be rejected " +
112 "by a server that enforces permissions.")
113 log.Println("To fix this, use the BlobSigningKeyFile config entry.")
116 if fn := cfg.SystemAuthTokenFile; fn != "" {
117 buf, err := ioutil.ReadFile(fn)
119 return fmt.Errorf("cannot read system auth token file %q: %s", fn, err)
121 cfg.systemAuthToken = strings.TrimSpace(string(buf))
124 if cfg.EnableDelete {
125 log.Print("Trash/delete features are enabled. WARNING: this has not " +
126 "been extensively tested. You should disable this unless you can afford to lose data.")
129 if len(cfg.Volumes) == 0 {
130 if (&unixVolumeAdder{cfg}).Discover() == 0 {
131 return fmt.Errorf("no volumes found")
134 for _, v := range cfg.Volumes {
135 if err := v.Start(); err != nil {
136 return fmt.Errorf("volume %s: %s", v, err)
138 log.Printf("Using volume %v (writable=%v)", v, v.Writable())
143 // VolumeTypes is built up by init() funcs in the source files that
144 // define the volume types.
145 var VolumeTypes = []func() VolumeWithExamples{}
147 type VolumeList []Volume
149 // UnmarshalJSON, given an array of objects, deserializes each object
150 // as the volume type indicated by the object's Type field.
151 func (vols *VolumeList) UnmarshalJSON(data []byte) error {
152 typeMap := map[string]func() VolumeWithExamples{}
153 for _, factory := range VolumeTypes {
154 t := factory().Type()
155 if _, ok := typeMap[t]; ok {
156 log.Fatal("volume type %+q is claimed by multiple VolumeTypes")
161 var mapList []map[string]interface{}
162 err := json.Unmarshal(data, &mapList)
166 for _, mapIn := range mapList {
167 typeIn, ok := mapIn["Type"].(string)
169 return fmt.Errorf("invalid volume type %+v", mapIn["Type"])
171 factory, ok := typeMap[typeIn]
173 return fmt.Errorf("unsupported volume type %+q", typeIn)
175 data, err := json.Marshal(mapIn)
180 err = json.Unmarshal(data, vol)
184 *vols = append(*vols, vol)
189 // MarshalJSON adds a "Type" field to each volume corresponding to its
191 func (vl *VolumeList) MarshalJSON() ([]byte, error) {
193 for _, vs := range *vl {
194 j, err := json.Marshal(vs)
199 data = append(data, byte(','))
201 t, err := json.Marshal(vs.Type())
205 data = append(data, j[0])
206 data = append(data, []byte(`"Type":`)...)
207 data = append(data, t...)
208 data = append(data, byte(','))
209 data = append(data, j[1:]...)
211 return append(data, byte(']')), nil