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k8s.go
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k8s.go
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package k8s
import (
"context"
"fmt"
"log/slog"
"strings"
"github.com/aquasecurity/trivy-kubernetes/pkg/bom"
"github.com/aquasecurity/trivy-kubernetes/pkg/k8s/docker"
"github.com/aquasecurity/trivy-kubernetes/utils"
containerimage "github.com/google/go-containerregistry/pkg/name"
ms "github.com/mitchellh/mapstructure"
"github.com/opencontainers/go-digest"
corev1 "k8s.io/api/core/v1"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
k8sapierror "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/cli-runtime/pkg/genericclioptions"
"k8s.io/client-go/dynamic"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
"k8s.io/client-go/tools/clientcmd"
"k8s.io/utils/strings/slices"
)
var (
UpstreamOrgName = map[string]string{
"k8s.io": "controller-manager,kubelet,apiserver,kubectl,kubernetes,kube-scheduler,kube-proxy,cloud-provider",
"sigs.k8s.io": "secrets-store-csi-driver",
"go.etcd.io": "etcd/v3",
}
UpstreamRepoName = map[string]string{
"kube-controller-manager": "controller-manager",
"kubelet": "kubelet",
"kube-apiserver": "apiserver",
"kubectl": "kubectl",
"kubernetes": "kubernetes",
"kube-scheduler": "kube-scheduler",
"kube-proxy": "kube-proxy",
"api server": "apiserver",
"etcd": "etcd/v3",
"cloud-controller-manager": "cloud-provider",
"secrets-store-csi-driver": "secrets-store-csi-driver",
}
CoreComponentPropertyType = map[string]string{
"controller-manager": "controlPlane",
"apiserver": "controlPlane",
"kube-scheduler": "controlPlane",
"etcd/v3": "controlPlane",
"cloud-provider": "controlPlane",
"kube-proxy": "node",
}
)
const (
KindPod = "Pod"
KindJob = "Job"
KindCronJob = "CronJob"
KindReplicaSet = "ReplicaSet"
KindReplicationController = "ReplicationController"
KindStatefulSet = "StatefulSet"
KindDaemonSet = "DaemonSet"
KindDeployment = "Deployment"
Deployments = "deployments"
ReplicaSets = "replicasets"
ReplicationControllers = "replicationcontrollers"
StatefulSets = "statefulsets"
DaemonSets = "daemonsets"
CronJobs = "cronjobs"
Services = "services"
ServiceAccounts = "serviceaccounts"
Jobs = "jobs"
Pods = "pods"
ConfigMaps = "configmaps"
Roles = "roles"
RoleBindings = "rolebindings"
NetworkPolicies = "networkpolicies"
Ingresses = "ingresses"
ResourceQuotas = "resourcequotas"
LimitRanges = "limitranges"
ClusterRoles = "clusterroles"
ClusterRoleBindings = "clusterrolebindings"
Nodes = "nodes"
k8sComponentNamespace = "kube-system"
serviceAccountDefault = "default"
native = "k8s"
gke = "gke"
aks = "aks"
eks = "eks"
rke2 = "rke2"
k3s = "k3s"
ocp = "ocp"
microk8s = "microk8s"
)
// Cluster interface represents the operations needed to scan a cluster
type Cluster interface {
// GetCurrentContext returns local kubernetes current-context
GetCurrentContext() string
// GetCurrentNamespace returns local kubernetes current namespace
GetCurrentNamespace() string
// GetDynamicClient returns a dynamic k8s client
GetDynamicClient() dynamic.Interface
// GetK8sClientSet returns a k8s client set
GetK8sClientSet() *kubernetes.Clientset
// GetGVRs returns cluster GroupVersionResource to query kubernetes, receives
// a boolean to determine if returns namespaced GVRs only or all GVRs, unless
// resources is passed to filter
GetGVRs(bool, []string) ([]schema.GroupVersionResource, error)
// GetGVR returns resource GroupVersionResource to query kubernetes, receives
// a string with the resource kind
GetGVR(string) (schema.GroupVersionResource, error)
// CreatePkgBom returns a k8s client set
CreateClusterBom(ctx context.Context) (*bom.Result, error)
// GetClusterVersion return cluster git version
GetClusterVersion() string
// AuthByResource return image pull secrets by resource pod spec
AuthByResource(resource unstructured.Unstructured) (map[string]docker.Auth, error)
// SpecByPlatform return spec by platform type and version
Platform() Platform
}
type cluster struct {
currentContext string
currentNamespace string
serverVersion string
dynamicClient dynamic.Interface
restMapper meta.RESTMapper
clientset *kubernetes.Clientset
cConfig clientcmd.ClientConfig
}
type ClusterOption func(*genericclioptions.ConfigFlags)
// Specify the context to use, if empty uses default
func WithContext(context string) ClusterOption {
return func(c *genericclioptions.ConfigFlags) {
c.Context = &context
}
}
// kubeconfig can be used to specify the config file path (overrides KUBECONFIG env)
func WithKubeConfig(kubeConfig string) ClusterOption {
return func(c *genericclioptions.ConfigFlags) {
c.KubeConfig = &kubeConfig
}
}
func WithQPS(qps float32) ClusterOption {
return func(o *genericclioptions.ConfigFlags) {
o.WrapConfigFn = combineConfigFns(o.WrapConfigFn, func(c *rest.Config) *rest.Config {
c.QPS = qps
return c
})
}
}
func WithBurst(burst int) ClusterOption {
return func(o *genericclioptions.ConfigFlags) {
o.WrapConfigFn = combineConfigFns(o.WrapConfigFn, func(c *rest.Config) *rest.Config {
c.Burst = burst
return c
})
}
}
// Helper function to combine multiple config functions
func combineConfigFns(existing, newFn func(*rest.Config) *rest.Config) func(*rest.Config) *rest.Config {
if existing == nil {
return newFn
}
return func(c *rest.Config) *rest.Config {
if modified := existing(c); modified != nil {
return newFn(modified)
}
return newFn(c)
}
}
// GetCluster returns a current configured cluster,
func GetCluster(opts ...ClusterOption) (Cluster, error) {
cf := genericclioptions.NewConfigFlags(true)
for _, opt := range opts {
opt(cf)
}
// disable warnings
rest.SetDefaultWarningHandler(rest.NoWarnings{})
clientConfig := cf.ToRawKubeConfigLoader()
restMapper, err := cf.ToRESTMapper()
if err != nil {
return nil, err
}
kubeConfig, err := cf.ToRESTConfig()
if err != nil {
return nil, err
}
return getCluster(clientConfig, kubeConfig, restMapper, *cf.Context, false)
}
func getCluster(clientConfig clientcmd.ClientConfig, kubeConfig *rest.Config, restMapper meta.RESTMapper, currentContext string, fakeConfig bool) (*cluster, error) {
k8sDynamicClient, err := dynamic.NewForConfig(kubeConfig)
if err != nil {
return nil, err
}
var kubeClientset *kubernetes.Clientset
kubeClientset, err = kubernetes.NewForConfig(kubeConfig)
if err != nil {
return nil, err
}
rawCfg, err := clientConfig.RawConfig()
if err != nil {
return nil, err
}
var namespace string
if len(currentContext) == 0 {
currentContext = rawCfg.CurrentContext
}
if context, ok := rawCfg.Contexts[currentContext]; ok {
namespace = context.Namespace
}
if len(namespace) == 0 {
namespace = "default"
}
var serverVersion string
if !fakeConfig {
sv, err := kubeClientset.ServerVersion()
if err != nil {
return nil, err
}
serverVersion = strings.TrimPrefix(sv.GitVersion, "v")
}
return &cluster{
currentContext: currentContext,
currentNamespace: namespace,
dynamicClient: k8sDynamicClient,
restMapper: restMapper,
clientset: kubeClientset,
cConfig: clientConfig,
serverVersion: serverVersion,
}, nil
}
// GetCurrentContext returns local kubernetes current-context
func (c *cluster) GetCurrentContext() string {
return c.currentContext
}
// GetClusterVersion return cluster git version
func (c *cluster) GetClusterVersion() string {
return c.serverVersion
}
// GetCurrentNamespace returns local kubernetes current namespace
func (c *cluster) GetCurrentNamespace() string {
return c.currentNamespace
}
// GetDynamicClient returns a dynamic k8s client
func (c *cluster) GetDynamicClient() dynamic.Interface {
return c.dynamicClient
}
// GetK8sClientSet returns k8s clientSet
func (c *cluster) GetK8sClientSet() *kubernetes.Clientset {
return c.clientset
}
// GetK8sClientSet returns k8s clientSet
func (c *cluster) Platform() Platform {
platform, err := c.Platfrom()
if err != nil {
return Platform{Name: "k8s", Version: "1.23.0"}
}
return platform
}
func (cluster *cluster) Platfrom() (Platform, error) {
v := cluster.getOpenShiftVersion(context.Background())
if len(v) != 0 {
return Platform{Name: "ocp", Version: majorVersion(v)}, nil
}
nodeName := cluster.getNodeName()
semVersion, err := cluster.clientset.ServerVersion()
if err != nil {
return Platform{}, err
}
p := getPlatformInfoFromVersion(semVersion.GitVersion)
var name string
switch {
case strings.Contains(p.Version, k3s):
name = k3s
case strings.Contains(p.Version, rke2):
name = rke2
case strings.Contains(p.Version, microk8s):
name = microk8s
case strings.Contains(nodeName, aks):
name = aks
case strings.Contains(nodeName, eks):
name = eks
case strings.Contains(nodeName, gke):
name = gke
default:
name = "k8s"
}
return Platform{Name: name, Version: p.Version}, nil
}
type Platform struct {
Name string
Version string
}
func (cluster *cluster) getOpenShiftVersion(ctx context.Context) string {
gvr, err := cluster.restMapper.ResourceFor(schema.GroupVersionResource{Resource: "clusterversions"})
if err != nil {
return ""
}
dclient := cluster.dynamicClient.Resource(gvr).Namespace("")
resources, err := dclient.List(ctx, metav1.ListOptions{})
if err != nil {
return ""
}
var version string
for _, resource := range resources.Items {
version, _, _ = unstructured.NestedString(resource.Object, []string{"status", "desired", "version"}...)
}
return version
}
func (cluster *cluster) getNodeName() string {
nodes, err := cluster.clientset.CoreV1().Nodes().List(context.Background(), metav1.ListOptions{})
if err != nil {
return "k8s"
}
return nodes.Items[0].Name
}
// GetGVRs returns cluster GroupVersionResource to query kubernetes, receives
// a boolean to determine if returns namespaced GVRs only or all GVRs, unless
// resources is passed to filter
func (c *cluster) GetGVRs(namespaced bool, resources []string) ([]schema.GroupVersionResource, error) {
grvs := make([]schema.GroupVersionResource, 0)
if len(resources) == 0 {
resources = getNamespaceResources()
if !namespaced {
resources = append(resources, getClusterResources()...)
}
}
for _, resource := range resources {
gvr, err := c.GetGVR(resource)
if err != nil {
return nil, err
}
grvs = append(grvs, gvr)
}
return grvs, nil
}
func (c *cluster) GetGVR(kind string) (schema.GroupVersionResource, error) {
return c.restMapper.ResourceFor(schema.GroupVersionResource{Resource: kind})
}
// IsClusterResource returns if a GVR is a cluster resource
func IsClusterResource(gvr schema.GroupVersionResource) bool {
for _, r := range getClusterResources() {
if gvr.Resource == r {
return true
}
}
return false
}
// IsBuiltInWorkload returns true if the specified v1.OwnerReference
// is a built-in Kubernetes workload, false otherwise.
func IsBuiltInWorkload(resource *metav1.OwnerReference) bool {
return resource != nil &&
(resource.Kind == string(KindReplicaSet) ||
resource.Kind == string(KindReplicationController) ||
resource.Kind == string(KindStatefulSet) ||
resource.Kind == string(KindDeployment) ||
resource.Kind == string(KindCronJob) ||
resource.Kind == string(KindDaemonSet) ||
resource.Kind == string(KindJob))
}
func getClusterResources() []string {
return []string{
ClusterRoles,
ClusterRoleBindings,
Nodes,
}
}
func getNamespaceResources() []string {
return []string{
Deployments,
Pods,
ReplicaSets,
ReplicationControllers,
StatefulSets,
DaemonSets,
CronJobs,
Jobs,
Services,
ServiceAccounts,
ConfigMaps,
Roles,
RoleBindings,
NetworkPolicies,
Ingresses,
ResourceQuotas,
LimitRanges,
}
}
func (c *cluster) CreateClusterBom(ctx context.Context) (*bom.Result, error) {
// collect addons info
var components []bom.Component
labels := map[string]string{
"": "component",
}
if c.isOpenShift() {
labels = map[string]string{
"openshift-kube-apiserver": "apiserver",
"openshift-kube-controller-manager": "kube-controller-manager",
"openshift-kube-scheduler": "scheduler",
"openshift-etcd": "etcd",
}
}
components, err := c.collectComponents(ctx, labels)
if err != nil {
return nil, err
}
addonLabels := map[string]string{
k8sComponentNamespace: "k8s-app",
}
addons, err := c.collectComponents(ctx, addonLabels)
if err != nil {
return nil, err
}
components = append(components, addons...)
nodesInfo, err := c.CollectNodes(components)
if err != nil {
return nil, err
}
return c.getClusterBomInfo(components, nodesInfo)
}
func GetContainer(hex string, imageName containerimage.Reference) (bom.Container, error) {
repoName := imageName.Context().RepositoryStr()
registryName := imageName.Context().RegistryStr()
return bom.Container{
Repository: repoName,
Registry: registryName,
ID: fmt.Sprintf("%s:%s", repoName, imageName.Identifier()),
Digest: hex,
Version: imageName.Identifier(),
}, nil
}
func (c *cluster) CollectNodes(components []bom.Component) ([]bom.NodeInfo, error) {
nodes, err := c.clientset.CoreV1().Nodes().List(context.Background(), metav1.ListOptions{})
if err != nil {
if errors.IsNotFound(err) || errors.IsForbidden(err) {
slog.Error("Unable to list node resources", "error", err)
return []bom.NodeInfo{}, nil
}
return nil, err
}
nodesInfo := make([]bom.NodeInfo, 0)
for _, node := range nodes.Items {
nf := NodeInfo(node)
images := make([]string, 0)
for _, image := range node.Status.Images {
for _, c := range components {
for _, co := range c.Containers {
id := fmt.Sprintf("%s/%s:%s", co.Registry, co.Repository, co.Version)
if slices.Contains(image.Names, id) {
images = append(images, id)
}
}
}
}
nf.Images = images
nodesInfo = append(nodesInfo, nf)
}
return nodesInfo, nil
}
func NodeInfo(node v1.Node) bom.NodeInfo {
nodeRole := "worker"
if _, ok := node.Labels["node-role.kubernetes.io/control-plane"]; ok {
nodeRole = "master"
}
if _, ok := node.Labels["node-role.kubernetes.io/master"]; ok {
nodeRole = "master"
}
return bom.NodeInfo{
NodeName: node.Name,
KubeletVersion: trimString(k8sVersions(node.Status.NodeInfo.KubeletVersion), []string{"v", "V"}),
ContainerRuntimeVersion: node.Status.NodeInfo.ContainerRuntimeVersion,
OsImage: node.Status.NodeInfo.OSImage,
KubeProxyVersion: trimString(k8sVersions(node.Status.NodeInfo.KubeProxyVersion), []string{"v", "V"}),
Properties: map[string]string{
"NodeRole": nodeRole,
"HostName": node.ObjectMeta.Name,
"KernelVersion": node.Status.NodeInfo.KernelVersion,
"OperatingSystem": node.Status.NodeInfo.OperatingSystem,
"Architecture": node.Status.NodeInfo.Architecture,
},
}
}
func getPodsInfo(ctx context.Context, clientset *kubernetes.Clientset, labelSelector string, namespace string) (*corev1.PodList, error) {
pods, err := clientset.CoreV1().Pods(namespace).List(ctx, metav1.ListOptions{LabelSelector: labelSelector})
if err != nil {
return nil, err
}
return pods, nil
}
func (c *cluster) collectComponents(ctx context.Context, labels map[string]string) ([]bom.Component, error) {
components := make([]bom.Component, 0)
for namespace, labelSelector := range labels {
pods, err := getPodsInfo(ctx, c.clientset, labelSelector, namespace)
if err != nil {
continue
}
for _, pod := range pods.Items {
pi, err := PodInfo(pod, labelSelector)
if err != nil {
continue
}
components = append(components, *pi)
}
}
return components, nil
}
func PodInfo(pod corev1.Pod, labelSelector string) (*bom.Component, error) {
containers := make([]bom.Container, 0)
for _, s := range pod.Status.ContainerStatuses {
imageName, err := utils.ParseReference(s.Image)
if err != nil {
slog.Warn(fmt.Sprintf("unable to parse image reference, skipping: %s", s.Image))
continue
}
imageID := getImageID(s.ImageID, s.Image)
if len(imageID) == 0 {
continue
}
imageRef, err := utils.ParseReference(imageID)
if err != nil {
slog.Warn(fmt.Sprintf("unable to parse image reference, skipping: %s", s.Image))
continue
}
hex := imageRef.Context().Digest(imageRef.Identifier()).DigestStr()
// skip non sha256 digests
if len(hex) != digest.Canonical.Size()*2 {
continue
}
co, err := GetContainer(hex, imageName)
if err != nil {
continue
}
containers = append(containers, co)
}
props := make(map[string]string)
componentValue, ok := pod.GetLabels()[labelSelector]
if ok {
props["Name"] = pod.Name
}
repoName := upstreamRepoByName(componentValue)
if val, ok := CoreComponentPropertyType[repoName]; ok {
props["Type"] = val
}
orgName := upstreamOrgByName(repoName)
upstreamComponentName := repoName
if len(orgName) > 0 {
upstreamComponentName = fmt.Sprintf("%s/%s", orgName, repoName)
}
version := trimString(findComponentVersion(containers, componentValue), []string{"v", "V"})
return &bom.Component{
Namespace: pod.Namespace,
Name: upstreamComponentName,
Version: version,
Properties: props,
Containers: containers,
}, nil
}
func findComponentVersion(containers []bom.Container, name string) string {
for _, c := range containers {
if strings.Contains(c.Version, "rke2") || strings.Contains(c.Version, "k3s") {
return k8sVersions(c.Version)
} else if strings.Contains(c.ID, name) {
return c.Version
}
}
return ""
}
func k8sVersions(version string) string {
switch {
case strings.Contains(version, "+rke2"):
index := strings.Index(version, "+rke2")
return version[:index]
case strings.Contains(version, "-rke2"):
index := strings.Index(version, "-rke2")
return version[:index]
case strings.Contains(version, "-k3s"):
index := strings.Index(version, "-k3s")
return version[:index]
}
return version
}
func (c *cluster) isOpenShift() bool {
ctx := context.Background()
_, err := c.clientset.CoreV1().Namespaces().Get(ctx, "openshift-kube-apiserver", metav1.GetOptions{})
return !k8sapierror.IsNotFound(err)
}
func (c *cluster) getClusterBomInfo(components []bom.Component, nodeInfo []bom.NodeInfo) (*bom.Result, error) {
name, version, err := c.ClusterNameVersion()
if err != nil {
return nil, err
}
br := &bom.Result{
Components: components,
ID: "k8s.io/kubernetes",
Type: "Cluster",
Version: trimString(version, []string{"v", "V"}),
Properties: map[string]string{"Name": name, "Type": "cluster"},
NodesInfo: nodeInfo,
}
return br, nil
}
func (c *cluster) ClusterNameVersion() (string, string, error) {
rawCfg, err := c.cConfig.RawConfig()
if err != nil {
return "", "", err
}
clusterName := "k8s.io/kubernetes"
if len(rawCfg.Contexts) > 0 {
if c.currentContext != "" {
rawCfg.CurrentContext = c.currentContext
}
if clusterContext, ok := rawCfg.Contexts[rawCfg.CurrentContext]; ok {
clusterName = clusterContext.Cluster
}
}
version, err := c.clientset.ServerVersion()
if err != nil {
return "", "", err
}
return clusterName, version.GitVersion, nil
}
// ListImagePullSecretsByPodSpec return image pull secrets by pod spec
func (r *cluster) ListImagePullSecretsByPodSpec(ctx context.Context, spec *corev1.PodSpec, ns string) (map[string]docker.Auth, error) {
if spec == nil {
return map[string]docker.Auth{}, nil
}
imagePullSecrets := spec.ImagePullSecrets
sa, err := r.getServiceAccountByPodSpec(ctx, spec, ns)
if err != nil && !k8sapierror.IsNotFound(err) && !k8sapierror.IsForbidden(err) {
return nil, err
}
imagePullSecrets = append(sa.ImagePullSecrets, imagePullSecrets...)
secrets, err := r.ListByLocalObjectReferences(ctx, imagePullSecrets, ns)
if err != nil {
return nil, err
}
return mapDockerRegistryServersToAuths(secrets, true)
}
func (r *cluster) getServiceAccountByPodSpec(ctx context.Context, spec *corev1.PodSpec, ns string) (*corev1.ServiceAccount, error) {
serviceAccountName := spec.ServiceAccountName
if serviceAccountName == "" {
serviceAccountName = serviceAccountDefault
}
sa, err := r.clientset.CoreV1().ServiceAccounts(ns).Get(ctx, serviceAccountName, metav1.GetOptions{})
if err != nil {
return sa, fmt.Errorf("getting service account by name: %s/%s: %w", ns, serviceAccountName, err)
}
return sa, nil
}
func (r *cluster) ListByLocalObjectReferences(ctx context.Context, refs []corev1.LocalObjectReference, ns string) ([]*corev1.Secret, error) {
secrets := make([]*corev1.Secret, 0)
for _, secretRef := range refs {
if secretRef.Name == "" {
continue
}
secret, err := r.clientset.CoreV1().Secrets(ns).Get(ctx, secretRef.Name, metav1.GetOptions{})
if err != nil {
if k8sapierror.IsNotFound(err) || k8sapierror.IsForbidden(err) {
continue
}
return nil, fmt.Errorf("getting secret by name: %s/%s: %w", ns, secretRef.Name, err)
}
secrets = append(secrets, secret)
}
return secrets, nil
}
// MapDockerRegistryServersToAuths creates the mapping from a Docker registry server
// to the Docker authentication credentials for the specified slice of image pull Secrets.
func mapDockerRegistryServersToAuths(imagePullSecrets []*corev1.Secret, multiSecretSupport bool) (map[string]docker.Auth, error) {
auths := make(map[string]docker.Auth)
for _, secret := range imagePullSecrets {
var data []byte
var hasRequiredData, isLegacy bool
switch secret.Type {
case corev1.SecretTypeDockerConfigJson:
data, hasRequiredData = secret.Data[corev1.DockerConfigJsonKey]
case corev1.SecretTypeDockercfg:
data, hasRequiredData = secret.Data[corev1.DockerConfigKey]
isLegacy = true
default:
continue
}
// Skip a secrets of type "kubernetes.io/dockerconfigjson" or "kubernetes.io/dockercfg" which does not contain
// the required ".dockerconfigjson" or ".dockercfg" key.
if !hasRequiredData {
continue
}
dockerConfig := &docker.Config{}
err := dockerConfig.Read(data, isLegacy)
if err != nil {
return nil, fmt.Errorf("reading %s or %s field of %q secret: %w", corev1.DockerConfigJsonKey, corev1.DockerConfigKey, secret.Namespace+"/"+secret.Name, err)
}
for authKey, auth := range dockerConfig.Auths {
server, err := docker.GetServerFromDockerAuthKey(authKey)
if err != nil {
return nil, err
}
if a, ok := auths[server]; multiSecretSupport && ok {
user := fmt.Sprintf("%s,%s", a.Username, auth.Username)
pass := fmt.Sprintf("%s,%s", a.Password, auth.Password)
auths[server] = docker.Auth{Username: user, Password: pass}
} else {
auths[server] = auth
}
}
}
return auths, nil
}
type ContainerImages map[string]string
func MapContainerNamesToDockerAuths(imageRef string, auths map[string]docker.Auth) (*docker.Auth, error) {
wildcardServers := GetWildcardServers(auths)
var authsCred docker.Auth
server, err := docker.GetServerFromImageRef(imageRef)
if err != nil {
return &authsCred, err
}
if auth, ok := auths[server]; ok {
return &auth, nil
}
if len(wildcardServers) > 0 {
if wildcardDomain := matchSubDomain(wildcardServers, server); len(wildcardDomain) > 0 {
if auth, ok := auths[wildcardDomain]; ok {
return &auth, nil
}
}
}
return nil, nil
}
func GetWildcardServers(auths map[string]docker.Auth) []string {
wildcardServers := make([]string, 0)
for server := range auths {
if strings.HasPrefix(server, "*.") {
wildcardServers = append(wildcardServers, server)
}
}
return wildcardServers
}
func matchSubDomain(wildcardServers []string, subDomain string) string {
for _, domain := range wildcardServers {
domainWithoutWildcard := strings.Replace(domain, "*", "", 1)
if strings.HasSuffix(subDomain, domainWithoutWildcard) {
return domain
}
}
return ""
}
func getWorkloadPodSpec(un unstructured.Unstructured) (*corev1.PodSpec, error) {
switch un.GetKind() {
case KindPod:
objectMap, ok, err := unstructured.NestedMap(un.Object, []string{"spec"}...)
if err != nil {
return nil, err
}
if !ok {
return nil, fmt.Errorf("unstructured resource do not match Pod spec")
}
return mapToPodSpec(objectMap)
case KindCronJob:
objectMap, ok, err := unstructured.NestedMap(un.Object, []string{"spec", "jobTemplate", "spec", "template", "spec"}...)
if err != nil {
return nil, err
}
if !ok {
return nil, fmt.Errorf("unstructured resource do not match Pod spec")
}
return mapToPodSpec(objectMap)
case KindDeployment, KindReplicaSet, KindReplicationController, KindStatefulSet, KindDaemonSet, KindJob:
objectMap, ok, err := unstructured.NestedMap(un.Object, []string{"spec", "template", "spec"}...)
if err != nil {
return nil, err
}
if !ok {
return nil, fmt.Errorf("unstructured resource do not match Pod spec")
}
return mapToPodSpec(objectMap)
default:
return nil, nil
}
}
func mapToPodSpec(objectMap map[string]interface{}) (*corev1.PodSpec, error) {
ps := &corev1.PodSpec{}
err := ms.Decode(objectMap, ps)
if err != nil && len(ps.Containers) == 0 {
return nil, err
}
return ps, nil
}
func (r *cluster) AuthByResource(resource unstructured.Unstructured) (map[string]docker.Auth, error) {
podSpec, err := getWorkloadPodSpec(resource)
if err != nil {
return nil, err
}
var serverAuths map[string]docker.Auth
serverAuths, err = r.ListImagePullSecretsByPodSpec(context.Background(), podSpec, resource.GetNamespace())
if err != nil {
return nil, err
}
return serverAuths, nil
}
func upstreamOrgByName(component string) string {
for key, components := range UpstreamOrgName {
for _, c := range strings.Split(components, ",") {
if strings.TrimSpace(c) == strings.ToLower(component) {
return key
}
}
}
return ""
}
func upstreamRepoByName(component string) string {
if val, ok := UpstreamRepoName[component]; ok {
return val
}
return component
}
func trimString(version string, trimValues []string) string {
for _, v := range trimValues {
version = strings.Trim(version, v)
}
return strings.TrimSpace(version)
}
func getImageID(imageID string, image string) string {
if len(imageID) > 0 {
return imageID
}
imageParts := strings.Split(image, "@")
if len(imageParts) > 1 && strings.HasPrefix(imageParts[1], "sha256") {
return imageParts[1]
}
return ""
}