/
config-v9.go
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/
config-v9.go
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/*
* MinIO Client (C) 2015 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"sync"
"github.com/minio/mc/pkg/probe"
"github.com/minio/minio/pkg/quick"
)
const (
defaultAccessKey = "YOUR-ACCESS-KEY-HERE"
defaultSecretKey = "YOUR-SECRET-KEY-HERE"
)
var (
// set once during first load.
cacheCfgV9 *configV9
// All access to mc config file should be synchronized.
cfgMutex = &sync.RWMutex{}
)
// hostConfig configuration of a host.
type hostConfigV9 struct {
URL string `json:"url"`
AccessKey string `json:"accessKey"`
SecretKey string `json:"secretKey"`
SessionToken string `json:"sessionToken,omitempty"`
API string `json:"api"`
Lookup string `json:"lookup"`
}
// configV8 config version.
type configV9 struct {
Version string `json:"version"`
Hosts map[string]hostConfigV9 `json:"hosts"`
}
// newConfigV9 - new config version.
func newConfigV9() *configV9 {
cfg := new(configV9)
cfg.Version = globalMCConfigVersion
cfg.Hosts = make(map[string]hostConfigV9)
return cfg
}
// SetHost sets host config if not empty.
func (c *configV9) setHost(alias string, cfg hostConfigV9) {
if _, ok := c.Hosts[alias]; !ok {
c.Hosts[alias] = cfg
}
}
// load default values for missing entries.
func (c *configV9) loadDefaults() {
// MinIO server running locally.
c.setHost("local", hostConfigV9{
URL: "http://localhost:9000",
AccessKey: "",
SecretKey: "",
API: "S3v4",
Lookup: "auto",
})
// Amazon S3 cloud storage service.
c.setHost("s3", hostConfigV9{
URL: "https://s3.amazonaws.com",
AccessKey: defaultAccessKey,
SecretKey: defaultSecretKey,
API: "S3v4",
Lookup: "dns",
})
// Google cloud storage service.
c.setHost("gcs", hostConfigV9{
URL: "https://storage.googleapis.com",
AccessKey: defaultAccessKey,
SecretKey: defaultSecretKey,
API: "S3v2",
Lookup: "dns",
})
// MinIO anonymous server for demo.
c.setHost("play", hostConfigV9{
URL: "https://play.min.io",
AccessKey: "Q3AM3UQ867SPQQA43P2F",
SecretKey: "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG",
API: "S3v4",
Lookup: "auto",
})
}
// loadConfigV9 - loads a new config.
func loadConfigV9() (*configV9, *probe.Error) {
cfgMutex.RLock()
defer cfgMutex.RUnlock()
// If already cached, return the cached value.
if cacheCfgV9 != nil {
return cacheCfgV9, nil
}
if !isMcConfigExists() {
return nil, errInvalidArgument().Trace()
}
// Initialize a new config loader.
qc, e := quick.NewConfig(newConfigV9(), nil)
if e != nil {
return nil, probe.NewError(e)
}
// Load config at configPath, fails if config is not
// accessible, malformed or version missing.
if e = qc.Load(mustGetMcConfigPath()); e != nil {
return nil, probe.NewError(e)
}
cfgV9 := qc.Data().(*configV9)
// Cache config.
cacheCfgV9 = cfgV9
// Success.
return cfgV9, nil
}
// saveConfigV8 - saves an updated config.
func saveConfigV9(cfgV9 *configV9) *probe.Error {
cfgMutex.Lock()
defer cfgMutex.Unlock()
qs, e := quick.NewConfig(cfgV9, nil)
if e != nil {
return probe.NewError(e)
}
// update the cache.
cacheCfgV9 = cfgV9
e = qs.Save(mustGetMcConfigPath())
if e != nil {
return probe.NewError(e).Trace(mustGetMcConfigPath())
}
return nil
}