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configreader.go
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 config
import (
"bufio"
"fmt"
"net/url"
"os"
"strings"
log "github.com/sirupsen/logrus"
)
type Profile struct {
Name string
ApiKey string
SecretKey string
Expires int `default:"600"`
SignatureVersion int `default:"3"`
}
var URL = "http://localhost:8080/client/api/"
var Iterations = 1
var Page = 0
var PageSize = 0
var Host = ""
var ZoneId = ""
var NetworkOfferingId = ""
var ServiceOfferingId = ""
var DiskOfferingId = ""
var TemplateId = ""
var ParentDomainId = ""
var NumDomains = 0
var NumNetworks = 0
var Subnet = "10.0.0.0"
var Submask = 22
var VlanStart = 80
var VlanEnd = 1000
var StartVM = true
var NumVms = 1
var NumVolumes = 1
func ReadProfiles(filePath string) (map[int]*Profile, error) {
file, err := os.Open(filePath)
if err != nil {
return nil, fmt.Errorf("error opening file: %w", err)
}
defer file.Close()
scanner := bufio.NewScanner(file)
profiles := make(map[int]*Profile)
var currentProfile string
i := 0
for scanner.Scan() {
line := scanner.Text()
line = strings.TrimSpace(line)
if line == "" || strings.HasPrefix(line, ";") {
continue
}
if strings.HasPrefix(line, "[") && strings.HasSuffix(line, "]") {
currentProfile = line[1 : len(line)-1]
i++
profiles[i] = &Profile{}
profiles[i].Name = currentProfile
} else {
// Parse key-value pairs within the profile
parts := strings.SplitN(line, "=", 2)
if len(parts) == 2 {
key := strings.TrimSpace(parts[0])
value := strings.TrimSpace(parts[1])
switch strings.ToLower(key) {
case "apikey":
profiles[i].ApiKey = value
case "secretkey":
profiles[i].SecretKey = value
case "url":
URL = value
case "iterations":
var iterations int
_, err := fmt.Sscanf(value, "%d", &iterations)
if err == nil {
Iterations = iterations
}
case "page":
var page int
_, err := fmt.Sscanf(value, "%d", &page)
if err == nil {
Page = page
}
case "pagesize":
var pagesize int
_, err := fmt.Sscanf(value, "%d", &pagesize)
if err == nil {
PageSize = pagesize
}
case "expires":
var expires int
_, err := fmt.Sscanf(value, "%d", &expires)
if err == nil {
profiles[i].Expires = expires
}
case "signatureversion":
var signatureVersion int
_, err := fmt.Sscanf(value, "%d", &signatureVersion)
if err == nil {
profiles[i].SignatureVersion = signatureVersion
}
case "zoneid":
ZoneId = value
case "networkofferingid":
NetworkOfferingId = value
case "serviceofferingid":
ServiceOfferingId = value
case "diskofferingid":
DiskOfferingId = value
case "templateid":
TemplateId = value
case "parentdomainid":
ParentDomainId = value
case "numdomains":
var numDomains int
_, err := fmt.Sscanf(value, "%d", &numDomains)
if err == nil {
NumDomains = numDomains
}
case "numnetworks":
var numNetworks int
_, err := fmt.Sscanf(value, "%d", &numNetworks)
if err == nil {
NumNetworks = numNetworks
}
case "subnet":
var subnet string
_, err := fmt.Sscanf(value, "%s", &subnet)
if err == nil {
Subnet = subnet
}
case "submask":
var submask int
_, err := fmt.Sscanf(value, "%d", &submask)
if err == nil {
Submask = submask
}
case "vlanrange":
var vlanStart, vlanEnd int
_, err := fmt.Sscanf(value, "%d-%d", &vlanStart, &vlanEnd)
if err == nil {
VlanStart = vlanStart
VlanEnd = vlanEnd
}
case "numvms":
var numVms int
_, err := fmt.Sscanf(value, "%d", &numVms)
if err == nil {
NumVms = numVms
}
case "startvm":
var startvm bool
_, err := fmt.Sscanf(value, "%t", &startvm)
if err == nil {
StartVM = startvm
}
case "numvolumes":
var numVolumes int
_, err := fmt.Sscanf(value, "%d", &numVolumes)
if err == nil {
NumVolumes = numVolumes
}
}
}
}
}
if err := scanner.Err(); err != nil {
return nil, fmt.Errorf("error scanning file: %w", err)
}
if len(profiles) == 0 {
fmt.Println("No roles are defined in the configuration file")
return nil, fmt.Errorf("no roles are defined in the configuration file: %w", err)
}
if URL == "" {
log.Fatalln("URL not found in the configuration, please verify")
}
parsedURL, err := url.Parse(URL)
if err != nil {
log.Errorf("Error parsing URL : %s with error : %s", URL, err)
return nil, fmt.Errorf("error parsing url : %s with error : %s", URL, err)
}
Host = parsedURL.Hostname()
validateConfig(profiles)
return profiles, nil
}
func validateConfig(profiles map[int]*Profile) bool {
result := true
for i, profile := range profiles {
if profile.ApiKey == "" || profile.SecretKey == "" {
message := "Please check ApiKey, SecretKey of the profile. They should not be empty"
fmt.Printf("Skipping profile [%s] : %s\n", profile.Name, message)
delete(profiles, i)
result = false
}
}
return result
}