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da3a53376c
When server is run with multiple disks which uses xl interface where order and count of disks are important, this patch saves such disks configuration and compares in next run if there is a mismatch. Fixes #1458
114 lines
3.5 KiB
Go
114 lines
3.5 KiB
Go
/*
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* Minio Cloud Storage, (C) 2015, 2016 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"fmt"
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"net/http"
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"reflect"
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router "github.com/gorilla/mux"
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)
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// newObjectLayer - initialize any object layer depending on the
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// number of export paths.
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func newObjectLayer(exportPaths ...string) (ObjectLayer, error) {
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if len(exportPaths) == 1 {
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exportPath := exportPaths[0]
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// Initialize FS object layer.
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return newFSObjects(exportPath)
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}
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// Initialize XL object layer.
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return newXLObjects(exportPaths...)
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}
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// configureServer handler returns final handler for the http server.
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func configureServerHandler(srvCmdConfig serverCmdConfig) http.Handler {
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// FIXME: currently we don't check single exportPath which uses FS layer.
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if len(srvCmdConfig.exportPaths) > 1 {
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if isFormatConfigFileExists() {
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format, err := getFormatXL()
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if err != nil {
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fatalIf(err, "Failed to read format.json", nil)
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}
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if !reflect.DeepEqual(format.Disks, srvCmdConfig.exportPaths) {
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err = fmt.Errorf("Number of export paths from command-line did not match the backend configuration. Backend is configured with [%s] exports.", format.Disks)
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fatalIf(err, "", nil)
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}
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} else {
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// First run: save disk configuration
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if err := saveFormatXL(xlFormat{Version: "1", Disks: srvCmdConfig.exportPaths}); err != nil {
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fatalIf(err, "Unable to save 'format.json'", nil)
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}
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}
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}
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objAPI, err := newObjectLayer(srvCmdConfig.exportPaths...)
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fatalIf(err, "Initializing object layer failed.", nil)
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// Initialize storage rpc server.
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storageRPC, err := newRPCServer(srvCmdConfig.exportPaths[0]) // FIXME: should only have one path.
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fatalIf(err, "Initializing storage rpc server failed.", nil)
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// Initialize API.
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apiHandlers := objectAPIHandlers{
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ObjectAPI: objAPI,
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}
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// Initialize Web.
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webHandlers := &webAPIHandlers{
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ObjectAPI: objAPI,
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}
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// Initialize router.
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mux := router.NewRouter()
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// Register all routers.
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registerStorageRPCRouter(mux, storageRPC)
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registerWebRouter(mux, webHandlers)
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registerAPIRouter(mux, apiHandlers)
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// Add new routers here.
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// List of some generic handlers which are applied for all
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// incoming requests.
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var handlerFns = []HandlerFunc{
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// Redirect some pre-defined browser request paths to a static
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// location prefix.
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setBrowserRedirectHandler,
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// Validates if incoming request is for restricted buckets.
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setPrivateBucketHandler,
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// Adds cache control for all browser requests.
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setBrowserCacheControlHandler,
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// Validates all incoming requests to have a valid date header.
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setTimeValidityHandler,
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// CORS setting for all browser API requests.
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setCorsHandler,
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// Validates all incoming URL resources, for invalid/unsupported
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// resources client receives a HTTP error.
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setIgnoreResourcesHandler,
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// Auth handler verifies incoming authorization headers and
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// routes them accordingly. Client receives a HTTP error for
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// invalid/unsupported signatures.
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setAuthHandler,
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// Add new handlers here.
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}
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// Register rest of the handlers.
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return registerHandlers(mux, handlerFns...)
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}
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