/
elasticsearch.go
262 lines (244 loc) · 10.9 KB
/
elasticsearch.go
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package storage
import (
"fmt"
"strconv"
"strings"
esv1 "github.com/openshift/elasticsearch-operator/apis/logging/v1"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
v1 "github.com/jaegertracing/jaeger-operator/apis/v1"
"github.com/jaegertracing/jaeger-operator/pkg/util"
)
const (
volumeName = "certs"
volumeMountPath = "/certs"
caPathESCerManagement = volumeMountPath + "/ca-bundle.crt"
keyPathESCertManagement = volumeMountPath + "/tls.key"
certPathESCertManagement = volumeMountPath + "/tls.crt"
caPath = volumeMountPath + "/ca"
keyPath = volumeMountPath + "/key"
certPath = volumeMountPath + "/cert"
)
func (ed *ElasticsearchDeployment) getCertPath() string {
if ed.Jaeger.Spec.Storage.Elasticsearch.UseCertManagement != nil && *ed.Jaeger.Spec.Storage.Elasticsearch.UseCertManagement {
return certPathESCertManagement
}
return certPath
}
func (ed *ElasticsearchDeployment) getCertKeyPath() string {
if ed.Jaeger.Spec.Storage.Elasticsearch.UseCertManagement != nil && *ed.Jaeger.Spec.Storage.Elasticsearch.UseCertManagement {
return keyPathESCertManagement
}
return keyPath
}
func (ed *ElasticsearchDeployment) getCertCaPath() string {
if ed.Jaeger.Spec.Storage.Elasticsearch.UseCertManagement != nil && *ed.Jaeger.Spec.Storage.Elasticsearch.UseCertManagement {
return caPathESCerManagement
}
return caPath
}
// ElasticsearchDeployment represents an ES deployment for Jaeger
type ElasticsearchDeployment struct {
Jaeger *v1.Jaeger
CertScript string
Secrets []corev1.Secret
}
func (ed *ElasticsearchDeployment) injectArguments(container *corev1.Container) {
container.Args = append(container.Args, fmt.Sprintf("--es.server-urls=https://%s:9200", ed.Jaeger.Spec.Storage.Elasticsearch.Name))
if util.FindItem("--es.tls=", container.Args) == "" && util.FindItem("--es.tls.enabled=", container.Args) == "" {
container.Args = append(container.Args, "--es.tls.enabled=true")
}
container.Args = append(container.Args,
"--es.tls.ca="+ed.getCertCaPath(),
"--es.tls.cert="+ed.getCertPath(),
"--es.tls.key="+ed.getCertKeyPath())
if util.FindItem("--es.timeout", container.Args) == "" {
container.Args = append(container.Args, "--es.timeout=15s")
}
if util.FindItem("--es.num-shards", container.Args) == "" {
// taken from https://github.com/openshift/cluster-logging-operator/blob/32b69e8bcf61a805e8f3c45c664a3c08d1ee62d5/vendor/github.com/openshift/elasticsearch-operator/pkg/k8shandler/configmaps.go#L38
// every ES node is a data node
container.Args = append(container.Args, fmt.Sprintf("--es.num-shards=%d", ed.Jaeger.Spec.Storage.Elasticsearch.NodeCount))
}
if util.FindItem("--es.num-replicas", container.Args) == "" {
container.Args = append(container.Args, fmt.Sprintf("--es.num-replicas=%d",
calculateReplicaShards(ed.Jaeger.Spec.Storage.Elasticsearch.RedundancyPolicy, int(ed.Jaeger.Spec.Storage.Elasticsearch.NodeCount))))
}
if strings.EqualFold(util.FindItem("--es-archive.enabled", container.Args), "--es-archive.enabled=true") {
container.Args = append(container.Args, fmt.Sprintf("--es-archive.server-urls=https://%s:9200", ed.Jaeger.Spec.Storage.Elasticsearch.Name))
if util.FindItem("--es-archive.tls=", container.Args) == "" && util.FindItem("--es-archive.tls.enabled=", container.Args) == "" {
container.Args = append(container.Args, "--es-archive.tls.enabled=true")
}
container.Args = append(container.Args,
"--es-archive.tls.ca="+ed.getCertCaPath(),
"--es-archive.tls.cert="+ed.getCertPath(),
"--es-archive.tls.key="+ed.getCertKeyPath(),
)
if util.FindItem("--es-archive.timeout", container.Args) == "" {
container.Args = append(container.Args, "--es-archive.timeout=15s")
}
if util.FindItem("--es-archive.num-shards", container.Args) == "" {
// taken from https://github.com/openshift/cluster-logging-operator/blob/32b69e8bcf61a805e8f3c45c664a3c08d1ee62d5/vendor/github.com/openshift/elasticsearch-operator/pkg/k8shandler/configmaps.go#L38
// every ES node is a data node
container.Args = append(container.Args, fmt.Sprintf("--es-archive.num-shards=%d", ed.Jaeger.Spec.Storage.Elasticsearch.NodeCount))
}
if util.FindItem("--es-archive.num-replicas", container.Args) == "" {
container.Args = append(container.Args, fmt.Sprintf("--es-archive.num-replicas=%d",
calculateReplicaShards(ed.Jaeger.Spec.Storage.Elasticsearch.RedundancyPolicy, int(ed.Jaeger.Spec.Storage.Elasticsearch.NodeCount))))
}
}
}
// InjectStorageConfiguration changes the given spec to include ES-related command line options
func (ed *ElasticsearchDeployment) InjectStorageConfiguration(p *corev1.PodSpec) {
p.Volumes = append(p.Volumes, corev1.Volume{
Name: volumeName,
VolumeSource: corev1.VolumeSource{
Secret: &corev1.SecretVolumeSource{
SecretName: jaegerESSecretName(*ed.Jaeger),
},
},
})
// we assume jaeger containers are first
if len(p.Containers) > 0 {
ed.injectArguments(&p.Containers[0])
p.Containers[0].VolumeMounts = append(p.Containers[0].VolumeMounts, corev1.VolumeMount{
Name: volumeName,
ReadOnly: true,
MountPath: volumeMountPath,
})
}
}
// InjectSecretsConfiguration changes the given spec to include the options for the index cleaner
func (ed *ElasticsearchDeployment) InjectSecretsConfiguration(p *corev1.PodSpec) {
p.Volumes = append(p.Volumes, corev1.Volume{
Name: volumeName,
VolumeSource: corev1.VolumeSource{
Secret: &corev1.SecretVolumeSource{
SecretName: jaegerESSecretName(*ed.Jaeger),
},
},
})
// we assume jaeger containers are first
if len(p.Containers) > 0 {
// the size of arguments array should be always 2
p.Containers[0].Args[1] = fmt.Sprintf("https://%s:9200", ed.Jaeger.Spec.Storage.Elasticsearch.Name)
p.Containers[0].Env = append(p.Containers[0].Env,
corev1.EnvVar{Name: "ES_TLS_ENABLED", Value: "true"},
corev1.EnvVar{Name: "ES_TLS_CA", Value: ed.getCertCaPath()},
corev1.EnvVar{Name: "ES_TLS_KEY", Value: ed.getCertKeyPath()},
corev1.EnvVar{Name: "ES_TLS_CERT", Value: ed.getCertPath()},
corev1.EnvVar{Name: "SHARDS", Value: strconv.Itoa(int(ed.Jaeger.Spec.Storage.Elasticsearch.NodeCount))},
corev1.EnvVar{Name: "REPLICAS", Value: strconv.Itoa(calculateReplicaShards(ed.Jaeger.Spec.Storage.Elasticsearch.RedundancyPolicy, int(ed.Jaeger.Spec.Storage.Elasticsearch.NodeCount)))},
)
p.Containers[0].VolumeMounts = append(p.Containers[0].VolumeMounts, corev1.VolumeMount{
Name: volumeName,
ReadOnly: true,
MountPath: volumeMountPath,
})
}
}
// Elasticsearch returns an ES CR for the deployment
func (ed *ElasticsearchDeployment) Elasticsearch() *esv1.Elasticsearch {
if ed.Jaeger.Spec.Storage.Elasticsearch.DoNotProvision {
// Do not provision ES
// The ES instance will be reused from already provisioned one
return nil
}
// this might yield names like:
// elasticsearch-cdm-osdke2ee7864afba6854e498f316bd37347f666simpleprod-1
// for the above value to contain at most 63 chars, our uuid has to have at most 42 chars
uuid := strings.Replace(util.Truncate(util.DNSName(ed.Jaeger.Namespace+ed.Jaeger.Name), 42), "-", "", -1)
var res corev1.ResourceRequirements
if ed.Jaeger.Spec.Storage.Elasticsearch.Resources != nil {
res = *ed.Jaeger.Spec.Storage.Elasticsearch.Resources
}
annotations := map[string]string{}
if ed.Jaeger.Spec.Storage.Elasticsearch.UseCertManagement != nil && *ed.Jaeger.Spec.Storage.Elasticsearch.UseCertManagement == true {
annotations["logging.openshift.io/elasticsearch-cert-management"] = "true"
// The value has to match searchguard configuration
// https://github.com/openshift/origin-aggregated-logging/blob/50126fb8e0c602e9c623d6a8599857aaf98f80f8/elasticsearch/sgconfig/roles_mapping.yml#L34
annotations[fmt.Sprintf("logging.openshift.io/elasticsearch-cert.%s", jaegerESSecretName(*ed.Jaeger))] = "user.jaeger"
}
return &esv1.Elasticsearch{
ObjectMeta: metav1.ObjectMeta{
Namespace: ed.Jaeger.Namespace,
Name: ed.Jaeger.Spec.Storage.Elasticsearch.Name,
Labels: map[string]string{
"app": "jaeger",
"app.kubernetes.io/name": util.Truncate(ed.Jaeger.Spec.Storage.Elasticsearch.Name, 63),
"app.kubernetes.io/instance": util.Truncate(ed.Jaeger.Name, 63),
"app.kubernetes.io/component": "elasticsearch",
"app.kubernetes.io/part-of": "jaeger",
// We cannot use jaeger-operator label because our controllers would try
// to manipulate with objects created by ES operator.
//"app.kubernetes.io/managed-by": "jaeger-operator",
},
Annotations: annotations,
OwnerReferences: []metav1.OwnerReference{util.AsOwner(ed.Jaeger)},
},
Spec: esv1.ElasticsearchSpec{
ManagementState: esv1.ManagementStateManaged,
RedundancyPolicy: ed.Jaeger.Spec.Storage.Elasticsearch.RedundancyPolicy,
Spec: esv1.ElasticsearchNodeSpec{
Image: ed.Jaeger.Spec.Storage.Elasticsearch.Image,
Resources: res,
Tolerations: ed.Jaeger.Spec.Storage.Elasticsearch.Tolerations,
},
Nodes: getNodes(uuid, ed.Jaeger.Spec.Storage.Elasticsearch),
},
}
}
func getNodes(uuid string, es v1.ElasticsearchSpec) []esv1.ElasticsearchNode {
if es.NodeCount <= 3 {
return []esv1.ElasticsearchNode{
{
NodeCount: es.NodeCount,
Storage: es.Storage,
NodeSelector: es.NodeSelector,
Roles: []esv1.ElasticsearchNodeRole{esv1.ElasticsearchRoleMaster, esv1.ElasticsearchRoleClient, esv1.ElasticsearchRoleData},
GenUUID: &uuid,
},
}
}
genuuidmaster := uuid + "master"
return []esv1.ElasticsearchNode{
{
NodeCount: 3,
Storage: es.Storage,
NodeSelector: es.NodeSelector,
Roles: []esv1.ElasticsearchNodeRole{esv1.ElasticsearchRoleMaster, esv1.ElasticsearchRoleClient, esv1.ElasticsearchRoleData},
GenUUID: &genuuidmaster,
},
{
NodeCount: es.NodeCount - 3,
Storage: es.Storage,
NodeSelector: es.NodeSelector,
Roles: []esv1.ElasticsearchNodeRole{esv1.ElasticsearchRoleClient, esv1.ElasticsearchRoleData},
GenUUID: &uuid,
},
}
}
// taken from https://github.com/openshift/cluster-logging-operator/blob/1ead6701c7c7af9c0578aa66597261079b2781d5/vendor/github.com/openshift/elasticsearch-operator/pkg/k8shandler/defaults.go#L33
func calculateReplicaShards(policyType esv1.RedundancyPolicyType, dataNodes int) int {
switch policyType {
case esv1.FullRedundancy:
return dataNodes - 1
case esv1.MultipleRedundancy:
return (dataNodes - 1) / 2
case esv1.SingleRedundancy:
return 1
case esv1.ZeroRedundancy:
return 0
default:
return 1
}
}
func jaegerESSecretName(jaeger v1.Jaeger) string {
prefix := ""
// ES cert management creates cert named jaeger-<elasticsearch-name>
// Cert management in Jaeger creates cert named <jaeger-name>-jaeger-elasticsearch
if jaeger.Spec.Storage.Elasticsearch.UseCertManagement == nil || !*jaeger.Spec.Storage.Elasticsearch.UseCertManagement {
prefix = jaeger.Name + "-"
}
return fmt.Sprintf("%sjaeger-%s", prefix, jaeger.Spec.Storage.Elasticsearch.Name)
}