/
main.go
136 lines (119 loc) · 3.45 KB
/
main.go
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package main
import (
_ "embed"
"os"
"strings"
"github.com/fsnotify/fsnotify"
"github.com/aws/eks-anywhere-packages/credentialproviderpackage/pkg/awscred"
cfg "github.com/aws/eks-anywhere-packages/credentialproviderpackage/pkg/configurator"
"github.com/aws/eks-anywhere-packages/credentialproviderpackage/pkg/configurator/bottlerocket"
"github.com/aws/eks-anywhere-packages/credentialproviderpackage/pkg/configurator/linux"
"github.com/aws/eks-anywhere-packages/credentialproviderpackage/pkg/constants"
"github.com/aws/eks-anywhere-packages/credentialproviderpackage/pkg/log"
)
const (
bottleRocket = "bottlerocket"
socketPath = "/run/api.sock"
// Aws Credentials
awsProfile = "eksa-packages"
credWatchData = "/secrets/aws-creds/..data"
credWatchPath = "/secrets/aws-creds/"
)
func main() {
var configurator cfg.Configurator
var err error
osType := strings.ToLower(os.Getenv("OS_TYPE"))
if osType == "" {
log.ErrorLogger.Println("Missing Environment Variable OS_TYPE")
os.Exit(1)
}
secretPath, err := awscred.GetAwsConfigPath()
if err != nil {
log.ErrorLogger.Fatal(err)
}
profile := os.Getenv("AWS_PROFILE")
if profile == "" {
profile = awsProfile
}
config := createCredentialProviderConfigOptions()
if osType == bottleRocket {
configurator, err = bottlerocket.NewBottleRocketConfigurator(socketPath)
if err != nil {
log.ErrorLogger.Fatal(err)
}
} else {
configurator = linux.NewLinuxConfigurator()
}
configurator.Initialize(config)
err = configurator.UpdateAWSCredentials(secretPath, profile)
if err != nil {
log.ErrorLogger.Fatal(err)
}
log.InfoLogger.Println("Aws credentials configured")
err = configurator.UpdateCredentialProvider(profile)
if err != nil {
log.ErrorLogger.Fatal(err)
}
log.InfoLogger.Println("Credential Provider Configured")
err = configurator.CommitChanges()
if err != nil {
log.ErrorLogger.Fatal(err)
}
log.InfoLogger.Println("Kubelet Restarted")
// Creating watcher for credentials
watcher, err := fsnotify.NewWatcher()
if err != nil {
log.ErrorLogger.Fatal(err)
}
defer watcher.Close()
// Start listening for changes to the aws credentials
go func() {
for {
select {
case event, ok := <-watcher.Events:
if !ok {
return
}
if event.Has(fsnotify.Create) {
if event.Name == credWatchData {
secretPath, err := awscred.GetAwsConfigPath()
if err != nil {
log.ErrorLogger.Fatal(err)
}
err = configurator.UpdateAWSCredentials(secretPath, profile)
if err != nil {
log.ErrorLogger.Fatal(err)
}
log.InfoLogger.Println("Aws credentials successfully changed")
}
}
case err, ok := <-watcher.Errors:
if !ok {
return
}
log.WarningLogger.Printf("filewatcher error: %v", err)
}
}
}()
err = watcher.Add(credWatchPath)
if err != nil {
log.ErrorLogger.Fatal(err)
}
// Block main goroutine forever.
<-make(chan struct{})
}
func createCredentialProviderConfigOptions() constants.CredentialProviderConfigOptions {
imagePatternsValues := os.Getenv("MATCH_IMAGES")
if imagePatternsValues == "" {
imagePatternsValues = constants.DefaultImagePattern
}
imagePatterns := strings.Split(imagePatternsValues, ",")
defaultCacheDuration := os.Getenv("DEFAULT_CACHE_DURATION")
if defaultCacheDuration == "" {
defaultCacheDuration = constants.DefaultCacheDuration
}
return constants.CredentialProviderConfigOptions{
ImagePatterns: imagePatterns,
DefaultCacheDuration: defaultCacheDuration,
}
}