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app.go
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app.go
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package reporting
import (
"bytes"
"compress/gzip"
"context"
"encoding/base64"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"os"
"sync"
"time"
"github.com/pkg/errors"
"github.com/replicatedhq/kots/pkg/api/reporting/types"
"github.com/replicatedhq/kots/pkg/k8sutil"
"github.com/replicatedhq/kots/pkg/kotsutil"
"github.com/replicatedhq/kots/pkg/kurl"
kurltypes "github.com/replicatedhq/kots/pkg/kurl/types"
"github.com/replicatedhq/kots/pkg/logger"
"github.com/replicatedhq/kots/pkg/store"
"github.com/replicatedhq/kots/pkg/util"
"github.com/segmentio/ksuid"
helmrelease "helm.sh/helm/v3/pkg/release"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/client-go/kubernetes"
)
var (
clusterID string // set when in Helm managed mode
)
func Init() error {
if util.IsHelmManaged() {
err := initFromHelm()
if err != nil {
return errors.Wrap(err, "failed to init from Helm")
}
} else {
err := initFromDownstream()
if err != nil {
return errors.Wrap(err, "failed to init from downstream")
}
}
return nil
}
func initFromHelm() error {
// ClusterID in reporting will be the UID of the v1 of Admin Console secret
clientSet, err := k8sutil.GetClientset()
if err != nil {
return errors.Wrap(err, "failed to get clientset")
}
selectorLabels := map[string]string{
"owner": "helm",
"version": "1",
}
listOpts := metav1.ListOptions{
LabelSelector: labels.SelectorFromSet(selectorLabels).String(),
}
secrets, err := clientSet.CoreV1().Secrets(util.PodNamespace).List(context.TODO(), listOpts)
if err != nil {
return errors.Wrap(err, "failed to list secrets")
}
for _, secret := range secrets.Items {
helmRelease, err := helmReleaseFromSecretData(secret.Data["release"])
if err != nil {
logger.Warnf("failed to parse helm chart in secret %s: %v", &secret.ObjectMeta.Name, err)
continue
}
if helmRelease.Chart == nil || helmRelease.Chart.Metadata == nil {
continue
}
if helmRelease.Chart.Metadata.Name != "admin-console" {
continue
}
clusterID = string(secret.ObjectMeta.UID)
return nil
}
return errors.New("admin-console secret v1 not found")
}
func helmReleaseFromSecretData(data []byte) (*helmrelease.Release, error) {
base64Reader := base64.NewDecoder(base64.StdEncoding, bytes.NewReader(data))
gzreader, err := gzip.NewReader(base64Reader)
if err != nil {
return nil, errors.Wrap(err, "failed to create gzip reader")
}
defer gzreader.Close()
releaseData, err := ioutil.ReadAll(gzreader)
if err != nil {
return nil, errors.Wrap(err, "failed to read from gzip reader")
}
release := &helmrelease.Release{}
err = json.Unmarshal(releaseData, &release)
if err != nil {
return nil, errors.Wrap(err, "failed to unmarshal release data")
}
return release, nil
}
func initFromDownstream() error {
// Retrieve the ClusterID from store
clusters, err := store.GetStore().ListClusters()
if err != nil {
return errors.Wrap(err, "failed to list clusters")
}
if len(clusters) == 0 {
return nil
}
clusterID := clusters[0].ClusterID
isKotsadmIDGenerated, err := store.GetStore().IsKotsadmIDGenerated()
if err != nil {
return errors.Wrap(err, "failed to generate id")
}
cmpExists, err := k8sutil.IsKotsadmIDConfigMapPresent()
if err != nil {
return errors.Wrap(err, "failed to check configmap")
}
if isKotsadmIDGenerated && !cmpExists {
kotsadmID := ksuid.New().String()
err = k8sutil.CreateKotsadmIDConfigMap(kotsadmID)
} else if !isKotsadmIDGenerated && !cmpExists {
err = k8sutil.CreateKotsadmIDConfigMap(clusterID)
} else if !isKotsadmIDGenerated && cmpExists {
err = k8sutil.UpdateKotsadmIDConfigMap(clusterID)
} else {
// id exists and so as configmap, noop
}
if err == nil {
err = store.GetStore().SetIsKotsadmIDGenerated()
}
return err
}
func SendAppInfo(appID string) error {
a, err := store.GetStore().GetApp(appID)
if err != nil {
if store.GetStore().IsNotFound(err) {
return nil
}
return errors.Wrap(err, "failed to get license for app")
}
license, err := store.GetStore().GetLatestLicenseForApp(a.ID)
if err != nil {
return errors.Wrap(err, "failed to get license for app")
}
endpoint := license.Spec.Endpoint
if !canReport(endpoint) {
return nil
}
url := fmt.Sprintf("%s/kots_metrics/license_instance/info", endpoint)
postReq, err := util.NewRequest("POST", url, nil)
if err != nil {
return errors.Wrap(err, "failed to create http request")
}
postReq.Header.Set("Authorization", fmt.Sprintf("Basic %s", base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf("%s:%s", license.Spec.LicenseID, license.Spec.LicenseID)))))
postReq.Header.Set("Content-Type", "application/json")
reportingInfo := GetReportingInfo(a.ID)
InjectReportingInfoHeaders(postReq, reportingInfo)
resp, err := http.DefaultClient.Do(postReq)
if err != nil {
return errors.Wrap(err, "failed to post request")
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
return errors.Errorf("Unexpected status code %d", resp.StatusCode)
}
return nil
}
func GetReportingInfo(appID string) *types.ReportingInfo {
ctx := context.TODO()
r := types.ReportingInfo{
InstanceID: appID,
}
clientset, err := k8sutil.GetClientset()
if err != nil {
logger.Debugf(errors.Wrap(err, "failed to get kubernetes clientset").Error())
}
if util.IsHelmManaged() {
r.ClusterID = clusterID
} else {
configMap, err := k8sutil.GetKotsadmIDConfigMap()
if err != nil {
r.ClusterID = ksuid.New().String()
} else if configMap != nil {
r.ClusterID = configMap.Data["id"]
} else {
// configmap is missing for some reason, recreate with new guid, this will appear as a new instance in the report
r.ClusterID = ksuid.New().String()
k8sutil.CreateKotsadmIDConfigMap(r.ClusterID)
}
di, err := getDownstreamInfo(appID)
if err != nil {
logger.Debugf("failed to get downstream info: %v", err.Error())
}
if di != nil {
r.Downstream = *di
}
}
// get kubernetes cluster version
k8sVersion, err := k8sutil.GetK8sVersion()
if err != nil {
logger.Debugf("failed to get k8s version: %v", err.Error())
} else {
r.K8sVersion = k8sVersion
}
// get app status
if util.IsHelmManaged() {
logger.Infof("TODO: get app status in Helm managed mode")
} else {
appStatus, err := store.GetStore().GetAppStatus(appID)
if err != nil {
logger.Debugf("failed to get app status: %v", err.Error())
} else {
r.AppStatus = string(appStatus.State)
}
}
r.IsKurl, err = kurl.IsKurl()
if err != nil {
logger.Debugf(errors.Wrap(err, "failed to check if cluster is kurl").Error())
}
if r.IsKurl && clientset != nil {
kurlNodes, err := cachedKurlGetNodes(ctx, clientset)
if err != nil {
logger.Debugf(errors.Wrap(err, "failed to get kurl nodes").Error())
}
for _, kurlNode := range kurlNodes.Nodes {
r.KurlNodeCountTotal++
if kurlNode.IsConnected && kurlNode.IsReady {
r.KurlNodeCountReady++
}
}
}
return &r
}
var (
cachedKurlNodes *kurltypes.KurlNodes
cachedKurlNodesLastUpdateTime time.Time
cachedKurlNodesMu sync.Mutex
)
const (
cachedKurlNodesUpdateInterval = 5 * time.Minute
)
func cachedKurlGetNodes(ctx context.Context, clientset kubernetes.Interface) (*kurltypes.KurlNodes, error) {
cachedKurlNodesMu.Lock()
defer cachedKurlNodesMu.Unlock()
if cachedKurlNodes != nil && time.Now().Sub(cachedKurlNodesLastUpdateTime) < cachedKurlNodesUpdateInterval {
return cachedKurlNodes, nil
}
kurlNodes, err := kurl.GetNodes(clientset)
if err != nil {
return nil, err
}
cachedKurlNodes = kurlNodes
cachedKurlNodesLastUpdateTime = time.Now()
return cachedKurlNodes, nil
}
func getDownstreamInfo(appID string) (*types.DownstreamInfo, error) {
di := types.DownstreamInfo{}
downstreams, err := store.GetStore().ListDownstreamsForApp(appID)
if err != nil {
return nil, errors.Wrap(err, "failed to list downstreams for app")
}
if len(downstreams) == 0 {
return nil, errors.New("no downstreams found for app")
}
deployedAppSequence, err := store.GetStore().GetCurrentParentSequence(appID, downstreams[0].ClusterID)
if err != nil {
return nil, errors.Wrap(err, "failed to get current downstream parent sequence")
}
// info about the deployed app sequence
if deployedAppSequence != -1 {
deployedArchiveDir, err := ioutil.TempDir("", "kotsadm")
if err != nil {
return nil, errors.Wrap(err, "failed to create temp dir")
}
defer os.RemoveAll(deployedArchiveDir)
err = store.GetStore().GetAppVersionArchive(appID, deployedAppSequence, deployedArchiveDir)
if err != nil {
return nil, errors.Wrap(err, "failed to get app version archive")
}
deployedKotsKinds, err := kotsutil.LoadKotsKindsFromPath(deployedArchiveDir)
if err != nil {
return nil, errors.Wrap(err, "failed to load kotskinds from path")
}
di.Cursor = deployedKotsKinds.Installation.Spec.UpdateCursor
di.ChannelID = deployedKotsKinds.Installation.Spec.ChannelID
di.ChannelName = deployedKotsKinds.Installation.Spec.ChannelName
if len(deployedKotsKinds.HelmCharts) > 0 {
for _, chart := range deployedKotsKinds.HelmCharts {
if chart.Spec.UseHelmInstall {
di.NativeHelmInstalls++
} else {
di.ReplHelmInstalls++
}
}
}
}
return &di, nil
}