117 lines
2.7 KiB
Go
117 lines
2.7 KiB
Go
package main
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import (
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"fmt"
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"net/netip"
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"time"
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"github.com/google/uuid"
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"github.com/thefeli73/polemos/mtdaws"
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"github.com/thefeli73/polemos/state"
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)
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// ConfigPath is a string of the location for the configfile
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var ConfigPath string
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func main() {
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fmt.Println("Starting Polemos")
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ConfigPath = "config.yaml"
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// Initialize the config.Services map
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var config state.Config
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config.MTD.Services = make(map[state.CustomUUID]state.Service)
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config = state.LoadConf(ConfigPath)
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state.SaveConf(ConfigPath, config)
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config = indexAllInstances(config)
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state.SaveConf(ConfigPath, config)
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// START DOING MTD
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mtdLoop(config)
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}
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func mtdLoop(config state.Config) {
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for true {
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//TODO: figure out migration (MTD)
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config = movingTargetDefense(config)
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state.SaveConf(ConfigPath, config)
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fmt.Println("Sleeping for 5 seconds")
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time.Sleep(5*time.Second)
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//TODO: proxy commands
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}
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}
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func movingTargetDefense(config state.Config) state.Config{
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mtdaws.AWSMoveInstance(config)
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return config
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}
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func indexAllInstances(config state.Config) state.Config {
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fmt.Println("Indexing instances")
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t := time.Now()
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for _, service := range config.MTD.Services {
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service.Active = false
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}
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//index AWS instances
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awsNewInstanceCounter := 0
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awsInactiveInstanceCounter := len(config.MTD.Services)
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awsInstanceCounter := 0
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awsInstances := mtdaws.GetInstances(config)
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for _, instance := range awsInstances {
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cloudID := mtdaws.GetCloudID(instance)
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ip, err := netip.ParseAddr(instance.PublicIP)
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if err != nil {
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fmt.Println("Error converting ip:\t", err)
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continue
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}
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var found bool
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config, found = indexInstance(config, cloudID, ip)
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if !found {
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awsNewInstanceCounter++
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} else {
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awsInactiveInstanceCounter--
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}
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awsInstanceCounter++
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}
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// TODO: Purge instances in config that are not found in the cloud
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fmt.Printf("Found %d active AWS instances (%d newly added, %d inactive) (took %s)\n",
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awsInstanceCounter, awsNewInstanceCounter, awsInactiveInstanceCounter, time.Since(t).Round(100*time.Millisecond).String())
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return config
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}
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func indexInstance(config state.Config, cloudID string, serviceIP netip.Addr) (state.Config, bool) {
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found := false
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var foundUUID state.CustomUUID
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for u, service := range config.MTD.Services {
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if service.CloudID == cloudID {
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found = true
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foundUUID = u
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break;
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}
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}
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if !found {
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fmt.Println("New instance found:\t", cloudID)
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u := uuid.New()
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config.MTD.Services[state.CustomUUID(u)] = state.Service{CloudID: cloudID, ServiceIP: serviceIP, Active: true, AdminEnabled: true}
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state.SaveConf(ConfigPath, config)
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} else {
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s := config.MTD.Services[foundUUID]
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s.Active = true
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config.MTD.Services[foundUUID] = s
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state.SaveConf(ConfigPath, config)
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}
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return config, found
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}
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