/
customerloader.go
490 lines (412 loc) · 13.4 KB
/
customerloader.go
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package cautils
import (
"context"
"encoding/json"
"fmt"
"os"
"strings"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/armosec/k8s-interface/k8sinterface"
"github.com/armosec/kubescape/core/cautils/getter"
"github.com/armosec/kubescape/core/cautils/logger"
corev1 "k8s.io/api/core/v1"
)
const configFileName = "config"
func ConfigFileFullPath() string { return getter.GetDefaultPath(configFileName + ".json") }
// ======================================================================================
// =============================== Config structure =====================================
// ======================================================================================
type ConfigObj struct {
AccountID string `json:"accountID,omitempty"`
ClientID string `json:"clientID,omitempty"`
SecretKey string `json:"secretKey,omitempty"`
CustomerGUID string `json:"customerGUID,omitempty"` // Deprecated
Token string `json:"invitationParam,omitempty"`
CustomerAdminEMail string `json:"adminMail,omitempty"`
ClusterName string `json:"clusterName,omitempty"`
}
// Config - convert ConfigObj to config file
func (co *ConfigObj) Config() []byte {
// remove cluster name before saving to file
clusterName := co.ClusterName
customerAdminEMail := co.CustomerAdminEMail
token := co.Token
co.ClusterName = ""
co.Token = ""
co.CustomerAdminEMail = ""
b, err := json.MarshalIndent(co, "", " ")
co.ClusterName = clusterName
co.CustomerAdminEMail = customerAdminEMail
co.Token = token
if err == nil {
return b
}
return []byte{}
}
// ======================================================================================
// =============================== interface ============================================
// ======================================================================================
type ITenantConfig interface {
// set
SetTenant() error
UpdateCachedConfig() error
DeleteCachedConfig() error
// getters
GetClusterName() string
GetAccountID() string
GetConfigObj() *ConfigObj
// GetBackendAPI() getter.IBackend
// GenerateURL()
IsConfigFound() bool
}
// ======================================================================================
// ============================ Local Config ============================================
// ======================================================================================
// Config when scanning YAML files or URL but not a Kubernetes cluster
type LocalConfig struct {
backendAPI getter.IBackend
configObj *ConfigObj
}
func NewLocalConfig(
backendAPI getter.IBackend, customerGUID, clusterName string) *LocalConfig {
var configObj *ConfigObj
lc := &LocalConfig{
backendAPI: backendAPI,
configObj: &ConfigObj{},
}
// get from configMap
if existsConfigFile() { // get from file
configObj, _ = loadConfigFromFile()
} else {
configObj = &ConfigObj{}
}
if configObj != nil {
lc.configObj = configObj
}
if customerGUID != "" {
lc.configObj.AccountID = customerGUID // override config customerGUID
}
if clusterName != "" {
lc.configObj.ClusterName = AdoptClusterName(clusterName) // override config clusterName
}
getAccountFromEnv(lc.configObj)
lc.backendAPI.SetAccountID(lc.configObj.AccountID)
lc.backendAPI.SetClientID(lc.configObj.ClientID)
lc.backendAPI.SetSecretKey(lc.configObj.SecretKey)
return lc
}
func (lc *LocalConfig) GetConfigObj() *ConfigObj { return lc.configObj }
func (lc *LocalConfig) GetAccountID() string { return lc.configObj.AccountID }
func (lc *LocalConfig) GetClusterName() string { return lc.configObj.ClusterName }
func (lc *LocalConfig) IsConfigFound() bool { return existsConfigFile() }
func (lc *LocalConfig) SetTenant() error {
// ARMO tenant GUID
if err := getTenantConfigFromBE(lc.backendAPI, lc.configObj); err != nil {
return err
}
lc.UpdateCachedConfig()
return nil
}
func (lc *LocalConfig) UpdateCachedConfig() error {
return updateConfigFile(lc.configObj)
}
func (lc *LocalConfig) DeleteCachedConfig() error {
if err := DeleteConfigFile(); err != nil {
logger.L().Warning(err.Error())
}
return nil
}
func getTenantConfigFromBE(backendAPI getter.IBackend, configObj *ConfigObj) error {
// get from armoBE
tenantResponse, err := backendAPI.GetTenant()
if err == nil && tenantResponse != nil {
if tenantResponse.AdminMail != "" { // registered tenant
configObj.CustomerAdminEMail = tenantResponse.AdminMail
} else { // new tenant
configObj.Token = tenantResponse.Token
configObj.AccountID = tenantResponse.TenantID
}
} else {
if err != nil && !strings.Contains(err.Error(), "already exists") {
return err
}
}
return nil
}
// ======================================================================================
// ========================== Cluster Config ============================================
// ======================================================================================
// ClusterConfig configuration of specific cluster
/*
Supported environments variables:
KS_DEFAULT_CONFIGMAP_NAME // name of configmap, if not set default is 'kubescape'
KS_DEFAULT_CONFIGMAP_NAMESPACE // configmap namespace, if not set default is 'default'
KS_ACCOUNT_ID
KS_CLIENT_ID
KS_SECRET_KEY
TODO - supprot:
KS_CACHE // path to cached files
*/
type ClusterConfig struct {
k8s *k8sinterface.KubernetesApi
configMapName string
configMapNamespace string
backendAPI getter.IBackend
configObj *ConfigObj
}
func NewClusterConfig(k8s *k8sinterface.KubernetesApi, backendAPI getter.IBackend, customerGUID, clusterName string) *ClusterConfig {
var configObj *ConfigObj
c := &ClusterConfig{
k8s: k8s,
backendAPI: backendAPI,
configObj: &ConfigObj{},
configMapName: getConfigMapName(),
configMapNamespace: getConfigMapNamespace(),
}
// get from configMap
if c.existsConfigMap() {
configObj, _ = c.loadConfigFromConfigMap()
}
if configObj == nil && existsConfigFile() { // get from file
configObj, _ = loadConfigFromFile()
}
if configObj != nil {
c.configObj = configObj
}
if customerGUID != "" {
c.configObj.AccountID = customerGUID // override config customerGUID
}
if clusterName != "" {
c.configObj.ClusterName = AdoptClusterName(clusterName) // override config clusterName
}
getAccountFromEnv(c.configObj)
if c.configObj.ClusterName == "" {
c.configObj.ClusterName = AdoptClusterName(k8sinterface.GetClusterName())
} else { // override the cluster name if it has unwanted characters
c.configObj.ClusterName = AdoptClusterName(c.configObj.ClusterName)
}
c.backendAPI.SetAccountID(c.configObj.AccountID)
c.backendAPI.SetClientID(c.configObj.ClientID)
c.backendAPI.SetSecretKey(c.configObj.SecretKey)
return c
}
func (c *ClusterConfig) GetConfigObj() *ConfigObj { return c.configObj }
func (c *ClusterConfig) GetDefaultNS() string { return c.configMapNamespace }
func (c *ClusterConfig) GetAccountID() string { return c.configObj.AccountID }
func (c *ClusterConfig) IsConfigFound() bool { return existsConfigFile() || c.existsConfigMap() }
func (c *ClusterConfig) SetTenant() error {
// ARMO tenant GUID
if err := getTenantConfigFromBE(c.backendAPI, c.configObj); err != nil {
return err
}
c.UpdateCachedConfig()
return nil
}
func (c *ClusterConfig) UpdateCachedConfig() error {
// update/create config
if c.existsConfigMap() {
if err := c.updateConfigMap(); err != nil {
return err
}
} else {
if err := c.createConfigMap(); err != nil {
return err
}
}
return updateConfigFile(c.configObj)
}
func (c *ClusterConfig) DeleteCachedConfig() error {
if err := c.deleteConfigMap(); err != nil {
logger.L().Warning(err.Error())
}
if err := DeleteConfigFile(); err != nil {
logger.L().Warning(err.Error())
}
return nil
}
func (c *ClusterConfig) GetClusterName() string {
return c.configObj.ClusterName
}
func (c *ClusterConfig) ToMapString() map[string]interface{} {
m := map[string]interface{}{}
if bc, err := json.Marshal(c.configObj); err == nil {
json.Unmarshal(bc, &m)
}
return m
}
func (c *ClusterConfig) loadConfigFromConfigMap() (*ConfigObj, error) {
configMap, err := c.k8s.KubernetesClient.CoreV1().ConfigMaps(c.configMapNamespace).Get(context.Background(), c.configMapName, metav1.GetOptions{})
if err != nil {
return nil, err
}
if bData, err := json.Marshal(configMap.Data); err == nil {
return readConfig(bData)
}
return nil, nil
}
func (c *ClusterConfig) existsConfigMap() bool {
_, err := c.k8s.KubernetesClient.CoreV1().ConfigMaps(c.configMapNamespace).Get(context.Background(), c.configMapName, metav1.GetOptions{})
// TODO - check if has customerGUID
return err == nil
}
func (c *ClusterConfig) GetValueByKeyFromConfigMap(key string) (string, error) {
configMap, err := c.k8s.KubernetesClient.CoreV1().ConfigMaps(c.configMapNamespace).Get(context.Background(), c.configMapName, metav1.GetOptions{})
if err != nil {
return "", err
}
if val, ok := configMap.Data[key]; ok {
return val, nil
} else {
return "", fmt.Errorf("value does not exist")
}
}
func GetValueFromConfigJson(key string) (string, error) {
data, err := os.ReadFile(ConfigFileFullPath())
if err != nil {
return "", err
}
var obj map[string]interface{}
if err := json.Unmarshal(data, &obj); err != nil {
return "", err
}
if val, ok := obj[key]; ok {
return fmt.Sprint(val), nil
} else {
return "", fmt.Errorf("value does not exist")
}
}
func (c *ClusterConfig) SetKeyValueInConfigmap(key string, value string) error {
configMap, err := c.k8s.KubernetesClient.CoreV1().ConfigMaps(c.configMapNamespace).Get(context.Background(), c.configMapName, metav1.GetOptions{})
if err != nil {
configMap = &corev1.ConfigMap{
ObjectMeta: metav1.ObjectMeta{
Name: c.configMapName,
},
}
}
if len(configMap.Data) == 0 {
configMap.Data = make(map[string]string)
}
configMap.Data[key] = value
if err != nil {
_, err = c.k8s.KubernetesClient.CoreV1().ConfigMaps(c.configMapNamespace).Create(context.Background(), configMap, metav1.CreateOptions{})
} else {
_, err = c.k8s.KubernetesClient.CoreV1().ConfigMaps(c.configMapNamespace).Update(context.Background(), configMap, metav1.UpdateOptions{})
}
return err
}
func existsConfigFile() bool {
_, err := os.ReadFile(ConfigFileFullPath())
return err == nil
}
func (c *ClusterConfig) createConfigMap() error {
if c.k8s == nil {
return nil
}
configMap := &corev1.ConfigMap{
ObjectMeta: metav1.ObjectMeta{
Name: c.configMapName,
},
}
c.updateConfigData(configMap)
_, err := c.k8s.KubernetesClient.CoreV1().ConfigMaps(c.configMapNamespace).Create(context.Background(), configMap, metav1.CreateOptions{})
return err
}
func (c *ClusterConfig) updateConfigMap() error {
if c.k8s == nil {
return nil
}
configMap, err := c.k8s.KubernetesClient.CoreV1().ConfigMaps(c.configMapNamespace).Get(context.Background(), c.configMapName, metav1.GetOptions{})
if err != nil {
return err
}
c.updateConfigData(configMap)
_, err = c.k8s.KubernetesClient.CoreV1().ConfigMaps(c.configMapNamespace).Update(context.Background(), configMap, metav1.UpdateOptions{})
return err
}
func updateConfigFile(configObj *ConfigObj) error {
if err := os.WriteFile(ConfigFileFullPath(), configObj.Config(), 0664); err != nil {
return err
}
return nil
}
func (c *ClusterConfig) updateConfigData(configMap *corev1.ConfigMap) {
if len(configMap.Data) == 0 {
configMap.Data = make(map[string]string)
}
m := c.ToMapString()
for k, v := range m {
if s, ok := v.(string); ok {
configMap.Data[k] = s
}
}
}
func loadConfigFromFile() (*ConfigObj, error) {
dat, err := os.ReadFile(ConfigFileFullPath())
if err != nil {
return nil, err
}
return readConfig(dat)
}
func readConfig(dat []byte) (*ConfigObj, error) {
if len(dat) == 0 {
return nil, nil
}
configObj := &ConfigObj{}
if err := json.Unmarshal(dat, configObj); err != nil {
return nil, err
}
if configObj.AccountID == "" {
configObj.AccountID = configObj.CustomerGUID
}
configObj.CustomerGUID = ""
return configObj, nil
}
// Check if the customer is submitted
func (clusterConfig *ClusterConfig) IsSubmitted() bool {
return clusterConfig.existsConfigMap() || existsConfigFile()
}
// Check if the customer is registered
func (clusterConfig *ClusterConfig) IsRegistered() bool {
// get from armoBE
tenantResponse, err := clusterConfig.backendAPI.GetTenant()
if err == nil && tenantResponse != nil {
if tenantResponse.AdminMail != "" { // this customer already belongs to some user
return true
}
}
return false
}
func (clusterConfig *ClusterConfig) deleteConfigMap() error {
return clusterConfig.k8s.KubernetesClient.CoreV1().ConfigMaps(clusterConfig.configMapNamespace).Delete(context.Background(), clusterConfig.configMapName, metav1.DeleteOptions{})
}
func DeleteConfigFile() error {
return os.Remove(ConfigFileFullPath())
}
func AdoptClusterName(clusterName string) string {
return strings.ReplaceAll(clusterName, "/", "-")
}
func getConfigMapName() string {
if n := os.Getenv("KS_DEFAULT_CONFIGMAP_NAME"); n != "" {
return n
}
return "kubescape"
}
func getConfigMapNamespace() string {
if n := os.Getenv("KS_DEFAULT_CONFIGMAP_NAMESPACE"); n != "" {
return n
}
return "default"
}
func getAccountFromEnv(configObj *ConfigObj) {
// load from env
if accountID := os.Getenv("KS_ACCOUNT_ID"); accountID != "" {
configObj.AccountID = accountID
}
if clientID := os.Getenv("KS_CLIENT_ID"); clientID != "" {
configObj.ClientID = clientID
}
if secretKey := os.Getenv("KS_SECRET_KEY"); secretKey != "" {
configObj.SecretKey = secretKey
}
}