/
syslog.go
486 lines (437 loc) · 13.7 KB
/
syslog.go
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package e2e
import (
"context"
"errors"
"fmt"
"log"
"strconv"
"strings"
"time"
"github.com/openshift/cluster-logging-operator/test/helpers/certificate"
rbacv1 "k8s.io/api/rbac/v1"
"github.com/openshift/cluster-logging-operator/internal/constants"
"github.com/openshift/cluster-logging-operator/internal/factory"
"github.com/openshift/cluster-logging-operator/internal/runtime"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"github.com/openshift/cluster-logging-operator/test/helpers/types"
apps "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/wait"
clolog "github.com/ViaQ/logerr/v2/log/static"
"github.com/openshift/cluster-logging-operator/internal/k8shandler"
"github.com/openshift/cluster-logging-operator/internal/utils"
)
type syslogReceiverLogStore struct {
deployment *apps.Deployment
tc *E2ETestFramework
}
const (
SyslogReceiverName = "syslog-receiver"
ImageRemoteSyslog = "registry.redhat.io/rhel8/rsyslog:8.7-9"
)
// SyslogRfc type is the rfc used for sending syslog
type SyslogRfc int
const (
// RFC3164 rfc3164
RFC3164 SyslogRfc = iota
// RFC5424 rfc5424
RFC5424
// RFC3164RFC5424 either rfc3164 or rfc5424
RFC3164RFC5424
)
func MustParseRFC(rfc string) SyslogRfc {
switch strings.ToUpper(rfc) {
case "RFC3164":
return RFC3164
case "RFC5424":
return RFC5424
case "RFC3164 or RFC5424":
return RFC3164RFC5424
}
log.Fatal("Unable to parse RFC", "rfc", rfc)
return 0
}
func (e SyslogRfc) String() string {
switch e {
case RFC3164:
return "RFC3164"
case RFC5424:
return "RFC5424"
case RFC3164RFC5424:
return "RFC3164 or RFC5424"
default:
return "Unknown rfc"
}
}
func GenerateRsyslogConf(conf string, rfc SyslogRfc) string {
switch rfc {
case RFC5424:
return strings.Join([]string{conf, RuleSetRfc5424}, "\n")
case RFC3164:
return strings.Join([]string{conf, RuleSetRfc3164}, "\n")
case RFC3164RFC5424:
return strings.Join([]string{conf, RuleSetRfc3164Rfc5424}, "\n")
}
return "Invalid Conf"
}
func (syslog *syslogReceiverLogStore) hasLogs(file string, timeToWait time.Duration) (bool, error) {
options := metav1.ListOptions{
LabelSelector: "component=syslog-receiver",
}
pods, err := syslog.tc.KubeClient.CoreV1().Pods(constants.OpenshiftNS).List(context.TODO(), options)
if err != nil {
return false, err
}
if len(pods.Items) == 0 {
return false, errors.New("No pods found for syslog receiver")
}
podName := pods.Items[0].Name
cmd := fmt.Sprintf("ls %s | wc -l", file)
err = wait.PollUntilContextTimeout(context.TODO(), defaultRetryInterval, timeToWait, true, func(cxt context.Context) (done bool, err error) {
output, err := syslog.tc.PodExec(constants.OpenshiftNS, podName, "syslog-receiver", []string{"bash", "-c", cmd})
if err != nil {
clolog.Error(err, "failed to fetch logs from syslog-receiver")
return false, nil
}
value, err := strconv.Atoi(strings.TrimSpace(output))
if err != nil {
clolog.V(2).Error(err, "Error parsing output", "output", output)
return false, nil
}
return value > 0, nil
})
if wait.Interrupted(err) {
return false, err
}
return true, err
}
func (syslog *syslogReceiverLogStore) grepLogs(expr string, logfile string, timeToWait time.Duration) (string, error) {
NotFound := "No Found"
options := metav1.ListOptions{
LabelSelector: "component=syslog-receiver",
}
pods, err := syslog.tc.KubeClient.CoreV1().Pods(constants.OpenshiftNS).List(context.TODO(), options)
if err != nil {
return NotFound, err
}
if len(pods.Items) == 0 {
return NotFound, errors.New("No pods found for syslog receiver")
}
clolog.V(3).Info("Pod", "PodName", pods.Items[0].Name)
cmd := fmt.Sprintf(expr, logfile)
clolog.V(3).Info("running expression", "expression", cmd)
var value string
err = wait.PollUntilContextTimeout(context.TODO(), defaultRetryInterval, timeToWait, true, func(cxt context.Context) (done bool, err error) {
output, err := syslog.tc.PodExec(constants.OpenshiftNS, pods.Items[0].Name, "syslog-receiver", []string{"bash", "-c", cmd})
if err != nil {
clolog.Error(err, "failed to fetch logs from syslog-receiver")
return false, nil
}
value = strings.TrimSpace(output)
return true, nil
})
if wait.Interrupted(err) {
return NotFound, err
}
return value, nil
}
func (syslog *syslogReceiverLogStore) ApplicationLogs(timeToWait time.Duration) (types.Logs, error) {
panic("Method not implemented")
}
func (syslog *syslogReceiverLogStore) HasInfraStructureLogs(timeToWait time.Duration) (bool, error) {
return syslog.hasLogs("/tmp/infra.log", timeToWait)
}
func (syslog *syslogReceiverLogStore) HasApplicationLogs(timeToWait time.Duration) (bool, error) {
return false, fmt.Errorf("Not implemented")
}
func (syslog *syslogReceiverLogStore) HasAuditLogs(timeToWait time.Duration) (bool, error) {
return false, fmt.Errorf("Not implemented")
}
func (syslog *syslogReceiverLogStore) GrepLogs(expr string, timeToWait time.Duration) (string, error) {
return syslog.grepLogs(expr, "/tmp/infra.log", timeToWait)
}
func (syslog *syslogReceiverLogStore) RetrieveLogs() (map[string]string, error) {
return nil, fmt.Errorf("Not implemented")
}
func (syslog *syslogReceiverLogStore) ClusterLocalEndpoint() string {
panic("Not implemented")
}
func (tc *E2ETestFramework) createSyslogServiceAccount() (serviceAccount *corev1.ServiceAccount, err error) {
opts := metav1.CreateOptions{}
serviceAccount = runtime.NewServiceAccount(constants.OpenshiftNS, "syslog-receiver")
if serviceAccount, err = tc.KubeClient.CoreV1().ServiceAccounts(constants.OpenshiftNS).Create(context.TODO(), serviceAccount, opts); err != nil {
return nil, err
}
tc.AddCleanup(func() error {
opts := metav1.DeleteOptions{}
err := tc.KubeClient.CoreV1().ServiceAccounts(constants.OpenshiftNS).Delete(context.TODO(), serviceAccount.Name, opts)
if apierrors.IsNotFound(err) {
return nil
}
return err
})
return serviceAccount, nil
}
func (tc *E2ETestFramework) CreateLegacySyslogConfigMap(namespace, conf string) (err error) {
opts := metav1.CreateOptions{}
fluentdConfigMap := k8shandler.NewConfigMap(
"syslog",
namespace,
map[string]string{
"syslog.conf": conf,
},
)
if fluentdConfigMap, err = tc.KubeClient.CoreV1().ConfigMaps(namespace).Create(context.TODO(), fluentdConfigMap, opts); err != nil {
return err
}
tc.AddCleanup(func() error {
opts := metav1.DeleteOptions{}
err := tc.KubeClient.CoreV1().ConfigMaps(namespace).Delete(context.TODO(), fluentdConfigMap.Name, opts)
if apierrors.IsNotFound(err) {
return nil
}
return err
})
return nil
}
func (tc *E2ETestFramework) createSyslogRbac(name string) (err error) {
opts := metav1.CreateOptions{}
saRole := runtime.NewRole(
constants.OpenshiftNS,
name,
runtime.NewPolicyRules(
runtime.NewPolicyRule(
[]string{"security.openshift.io"},
[]string{"securitycontextconstraints"},
[]string{"privileged"},
[]string{"use"},
),
)...,
)
if _, err = tc.KubeClient.RbacV1().Roles(constants.OpenshiftNS).Create(context.TODO(), saRole, opts); err != nil {
return err
}
tc.AddCleanup(func() error {
opts := metav1.DeleteOptions{}
err := tc.KubeClient.RbacV1().Roles(constants.OpenshiftNS).Delete(context.TODO(), name, opts)
if apierrors.IsNotFound(err) {
return nil
}
return err
})
rbOpts := metav1.CreateOptions{}
subject := runtime.NewSubject(
"ServiceAccount",
name,
)
subject.APIGroup = ""
roleBinding := runtime.NewRoleBinding(
constants.OpenshiftNS,
name,
rbacv1.RoleRef{
Kind: "Role",
Name: saRole.Name,
APIGroup: rbacv1.GroupName,
},
runtime.NewSubjects(
subject,
)...,
)
if _, err = tc.KubeClient.RbacV1().RoleBindings(constants.OpenshiftNS).Create(context.TODO(), roleBinding, rbOpts); err != nil {
return err
}
tc.AddCleanup(func() error {
opts := metav1.DeleteOptions{}
err := tc.KubeClient.RbacV1().RoleBindings(constants.OpenshiftNS).Delete(context.TODO(), name, opts)
if apierrors.IsNotFound(err) {
return nil
}
return err
})
return nil
}
func (tc *E2ETestFramework) DeploySyslogReceiver(testDir string, protocol corev1.Protocol, withTLS bool, rfc SyslogRfc) (deployment *apps.Deployment, err error) {
logStore := &syslogReceiverLogStore{
tc: tc,
}
serviceAccount, err := tc.createSyslogServiceAccount()
if err != nil {
return nil, err
}
if err := tc.createSyslogRbac(SyslogReceiverName); err != nil {
return nil, err
}
container := corev1.Container{
Name: SyslogReceiverName,
Image: ImageRemoteSyslog,
ImagePullPolicy: corev1.PullAlways,
Args: []string{"rsyslogd", "-n", "-f", "/rsyslog/etc/rsyslog.conf"},
VolumeMounts: []corev1.VolumeMount{
{
Name: "config",
ReadOnly: true,
MountPath: "/rsyslog/etc",
},
},
SecurityContext: &corev1.SecurityContext{
AllowPrivilegeEscalation: utils.GetPtr(false),
Capabilities: &corev1.Capabilities{
Drop: []corev1.Capability{"ALL"},
},
},
}
podSpec := corev1.PodSpec{
Containers: []corev1.Container{container},
Volumes: []corev1.Volume{
{
Name: "config", VolumeSource: corev1.VolumeSource{
ConfigMap: &corev1.ConfigMapVolumeSource{
LocalObjectReference: corev1.LocalObjectReference{
Name: container.Name,
},
},
},
},
},
ServiceAccountName: serviceAccount.Name,
SecurityContext: &corev1.PodSecurityContext{
RunAsNonRoot: utils.GetPtr(true),
SeccompProfile: &corev1.SeccompProfile{
Type: corev1.SeccompProfileTypeRuntimeDefault,
},
},
}
var rsyslogConf string
switch {
case protocol == corev1.ProtocolUDP:
rsyslogConf = UdpSyslogInput
default:
rsyslogConf = TcpSyslogInput
}
if withTLS {
switch {
case protocol == corev1.ProtocolUDP:
rsyslogConf = UdpSyslogInputWithTLS
default:
rsyslogConf = TcpSyslogInputWithTLS
}
secret, err := tc.CreateSyslogReceiverSecrets(testDir, SyslogReceiverName, SyslogReceiverName)
if err != nil {
return nil, err
}
tc.AddCleanup(func() error {
opts := metav1.DeleteOptions{}
err := tc.KubeClient.CoreV1().Secrets(constants.OpenshiftNS).Delete(context.TODO(), SyslogReceiverName, opts)
if apierrors.IsNotFound(err) {
return nil
}
return err
})
container.VolumeMounts = append(container.VolumeMounts, corev1.VolumeMount{
Name: "certs",
ReadOnly: true,
MountPath: "/rsyslog/etc/secrets",
})
podSpec.Containers = []corev1.Container{container}
podSpec.Volumes = append(podSpec.Volumes, corev1.Volume{
Name: "certs", VolumeSource: corev1.VolumeSource{
Secret: &corev1.SecretVolumeSource{
SecretName: secret.ObjectMeta.Name,
},
},
})
}
rsyslogConf = GenerateRsyslogConf(rsyslogConf, rfc)
cOpts := metav1.CreateOptions{}
config := k8shandler.NewConfigMap(container.Name, constants.OpenshiftNS, map[string]string{
"rsyslog.conf": rsyslogConf,
})
config, err = tc.KubeClient.CoreV1().ConfigMaps(constants.OpenshiftNS).Create(context.TODO(), config, cOpts)
if err != nil {
return nil, err
}
tc.AddCleanup(func() error {
opts := metav1.DeleteOptions{}
err := tc.KubeClient.CoreV1().ConfigMaps(constants.OpenshiftNS).Delete(context.TODO(), config.Name, opts)
if apierrors.IsNotFound(err) {
return nil
}
return err
})
dOpts := metav1.CreateOptions{}
syslogDeployment := k8shandler.NewDeployment(
container.Name,
constants.OpenshiftNS,
container.Name,
serviceAccount.Name,
podSpec,
)
// Add instance label to pod spec template. Service now selects using instance name as well
syslogDeployment.Spec.Template.Labels[constants.LabelK8sInstance] = serviceAccount.Name
syslogDeployment, err = tc.KubeClient.AppsV1().Deployments(constants.OpenshiftNS).Create(context.TODO(), syslogDeployment, dOpts)
if err != nil {
return nil, err
}
service := factory.NewService(
serviceAccount.Name,
constants.OpenshiftNS,
serviceAccount.Name,
serviceAccount.Name,
[]corev1.ServicePort{
{
Protocol: protocol,
Port: 24224,
},
},
)
tc.AddCleanup(func() error {
var zerograce int64
deleteopts := metav1.DeleteOptions{
GracePeriodSeconds: &zerograce,
}
err := tc.KubeClient.AppsV1().Deployments(constants.OpenshiftNS).Delete(context.TODO(), syslogDeployment.Name, deleteopts)
if apierrors.IsNotFound(err) {
return nil
}
return err
})
sOpts := metav1.CreateOptions{}
service, err = tc.KubeClient.CoreV1().Services(constants.OpenshiftNS).Create(context.TODO(), service, sOpts)
if err != nil {
return nil, err
}
tc.AddCleanup(func() error {
opts := metav1.DeleteOptions{}
err := tc.KubeClient.CoreV1().Services(constants.OpenshiftNS).Delete(context.TODO(), service.Name, opts)
if apierrors.IsNotFound(err) {
return nil
}
return err
})
logStore.deployment = syslogDeployment
name := syslogDeployment.GetName()
tc.LogStores[name] = logStore
return syslogDeployment, tc.waitForDeployment(constants.OpenshiftNS, syslogDeployment.Name, defaultRetryInterval, defaultTimeout)
}
func (tc *E2ETestFramework) CreateSyslogReceiverSecrets(testDir, logStoreName, secretName string) (secret *corev1.Secret, err error) {
ca := certificate.NewCA(nil, "Root CA") // Self-signed CA
serverCert := certificate.NewCert(ca, "", logStoreName, fmt.Sprintf("%s.%s.svc", logStoreName, constants.OpenshiftNS))
data := map[string][]byte{
"tls.key": serverCert.PrivateKeyPEM(),
"tls.crt": serverCert.CertificatePEM(),
"ca-bundle.crt": ca.CertificatePEM(),
"ca.key": ca.PrivateKeyPEM(),
}
sOpts := metav1.CreateOptions{}
secret = k8shandler.NewSecret(
secretName,
constants.OpenshiftNS,
data,
)
clolog.V(3).Info("Creating secret for logStore", "secret", secret.Name, "logStore", logStoreName)
if secret, err = tc.KubeClient.CoreV1().Secrets(constants.OpenshiftNS).Create(context.TODO(), secret, sOpts); err != nil {
return nil, err
}
return secret, nil
}