/
resolver.go
229 lines (179 loc) · 5.27 KB
/
resolver.go
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package config
import (
"context"
"time"
"github.com/gin-gonic/gin"
gocache "github.com/patrickmn/go-cache"
"go.uber.org/zap"
"k8s.io/client-go/dynamic"
k8s "k8s.io/client-go/kubernetes"
"k8s.io/client-go/metadata"
"k8s.io/client-go/rest"
"github.com/kyverno/policy-reporter-plugins/plugins/trivy/pkg/api"
"github.com/kyverno/policy-reporter-plugins/plugins/trivy/pkg/api/core"
"github.com/kyverno/policy-reporter-plugins/plugins/trivy/pkg/api/cveawg"
"github.com/kyverno/policy-reporter-plugins/plugins/trivy/pkg/api/gh"
"github.com/kyverno/policy-reporter-plugins/plugins/trivy/pkg/kubernetes/leaderelection"
"github.com/kyverno/policy-reporter-plugins/plugins/trivy/pkg/kubernetes/secrets"
"github.com/kyverno/policy-reporter-plugins/plugins/trivy/pkg/logging"
"github.com/kyverno/policy-reporter-plugins/plugins/trivy/pkg/server"
"github.com/kyverno/policy-reporter-plugins/plugins/trivy/pkg/vulnr"
)
type Resolver struct {
config *Config
k8sConfig *rest.Config
clientset *k8s.Clientset
secrets secrets.Client
leaderClient *leaderelection.Client
}
func (r *Resolver) K8sConfig() (*rest.Config, error) {
if r.k8sConfig != nil {
return r.k8sConfig, nil
}
var k8sConfig *rest.Config
var err error
if r.config.Local {
k8sConfig, err = RestConfig(r.config.KubeConfig)
} else {
k8sConfig, err = rest.InClusterConfig()
}
if err != nil {
return nil, err
}
r.k8sConfig = k8sConfig
return r.k8sConfig, nil
}
func (r *Resolver) Clientset() (*k8s.Clientset, error) {
if r.clientset != nil {
return r.clientset, nil
}
clientset, err := k8s.NewForConfig(r.k8sConfig)
if err != nil {
return nil, err
}
r.clientset = clientset
return r.clientset, nil
}
func (r *Resolver) SecretClient() secrets.Client {
if r.secrets != nil {
return r.secrets
}
clientset, err := r.Clientset()
if err != nil {
return nil
}
r.secrets = secrets.NewClient(clientset.CoreV1().Secrets(r.config.Namespace))
return r.secrets
}
func (r *Resolver) MetadataClient() (metadata.Interface, error) {
k8sConfig, err := r.K8sConfig()
if err != nil {
return nil, err
}
client, err := metadata.NewForConfig(k8sConfig)
if err != nil {
return nil, err
}
return client, nil
}
func (r *Resolver) DynamicClient() (dynamic.Interface, error) {
k8sConfig, err := r.K8sConfig()
if err != nil {
return nil, err
}
client, err := dynamic.NewForConfig(k8sConfig)
if err != nil {
return nil, err
}
return client, nil
}
func (r *Resolver) Logger() *zap.Logger {
return logging.New(r.config.Logging)
}
func (r *Resolver) Server(ctx context.Context, options []server.ServerOption) (*server.Server, error) {
var err error
basicAuth := &r.config.Server.BasicAuth
if basicAuth.SecretRef != "" {
if basicAuth, err = r.LoadBasicAuth(ctx, r.config.Server.BasicAuth.SecretRef); err != nil {
zap.L().Error("failed to load basic auth secret", zap.Error(err))
}
}
if basicAuth.Username != "" && basicAuth.Password != "" {
options = append(options, server.WithBasicAuth(server.BasicAuth{
Username: basicAuth.Username,
Password: basicAuth.Password,
}))
}
if !r.config.Server.Debug {
gin.SetMode(gin.ReleaseMode)
}
engine := gin.New()
defaults := []server.ServerOption{server.WithGZIP()}
if r.config.Logging.Enabled || r.config.Server.Debug {
defaults = append(defaults, server.WithLogging(zap.L()))
} else {
defaults = append(defaults, server.WithRecovery())
}
serv := server.NewServer(engine, append(defaults, options...))
return serv, nil
}
func (r *Resolver) LoadBasicAuth(ctx context.Context, secretRef string) (*BasicAuth, error) {
values, err := r.SecretClient().Get(ctx, secretRef)
if err != nil {
return nil, err
}
return &BasicAuth{
Username: values.Username,
Password: values.Password,
SecretRef: secretRef,
}, nil
}
func (r *Resolver) CoreClient(ctx context.Context) (*core.Client, error) {
config := r.config.CoreAPI
if config.SecretRef != "" {
values, err := r.SecretClient().Get(ctx, r.config.CoreAPI.SecretRef)
if err != nil {
zap.L().Error("failed to load secret", zap.String("secretRef", config.SecretRef), zap.Error(err))
return nil, err
}
config = config.FromValues(values)
}
options := []api.ClientOption{
api.WithBaseURL(config.Host),
}
if config.Certificate != "" {
options = append(options, api.WithCertificate(config.Certificate))
} else if config.SkipTLS {
options = append(options, api.WithSkipTLS())
}
if config.BasicAuth.Username != "" {
options = append(options, api.WithBaseAuth(api.BasicAuth{
Username: config.BasicAuth.Username,
Password: config.BasicAuth.Password,
}))
}
if r.config.Logging.Enabled && r.config.Logging.LogLevel < 0 {
options = append(options, api.WithLogging())
}
return core.New(options)
}
func (r *Resolver) CVEClient() (*cveawg.Client, error) {
options := []api.ClientOption{}
if r.config.Logging.Enabled && r.config.Logging.LogLevel < 0 {
options = append(options, api.WithLogging())
}
return cveawg.New(options)
}
func (r *Resolver) GHClient() *gh.Client {
return gh.New()
}
func (r *Resolver) VulnrService() (*vulnr.Service, error) {
cve, err := r.CVEClient()
if err != nil {
return nil, err
}
return vulnr.New(cve, r.GHClient(), gocache.New(24*time.Hour, 1*time.Hour)), nil
}
func NewResolver(config *Config) Resolver {
return Resolver{config: config}
}