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flinkcluster_converter.go
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flinkcluster_converter.go
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/*
Copyright 2019 Google LLC.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package controllers
import (
"fmt"
"math"
"regexp"
"sort"
"strconv"
"strings"
"time"
"k8s.io/apimachinery/pkg/api/resource"
v1beta1 "github.com/googlecloudplatform/flink-operator/api/v1beta1"
appsv1 "k8s.io/api/apps/v1"
batchv1 "k8s.io/api/batch/v1"
corev1 "k8s.io/api/core/v1"
extensionsv1beta1 "k8s.io/api/extensions/v1beta1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/intstr"
)
// Converter which converts the FlinkCluster spec to the desired
// underlying Kubernetes resource specs.
const (
delayDeleteClusterMinutes int32 = 5
flinkConfigMapPath = "/opt/flink/conf"
flinkConfigMapVolume = "flink-config-volume"
gcpServiceAccountVolume = "gcp-service-account-volume"
hadoopConfigVolume = "hadoop-config-volume"
)
var flinkSysProps = map[string]struct{}{
"jobmanager.rpc.address": {},
"jobmanager.rpc.port": {},
"blob.server.port": {},
"query.server.port": {},
"rest.port": {},
}
// DesiredClusterState holds desired state of a cluster.
type DesiredClusterState struct {
JmDeployment *appsv1.Deployment
JmService *corev1.Service
JmIngress *extensionsv1beta1.Ingress
TmDeployment *appsv1.Deployment
ConfigMap *corev1.ConfigMap
Job *batchv1.Job
NativeClusterSessionJob *batchv1.Job
NativeJobClusterJob *batchv1.Job
}
// Gets the desired state of a cluster.
func getDesiredClusterState(
cluster *v1beta1.FlinkCluster,
now time.Time) DesiredClusterState {
// The cluster has been deleted, all resources should be cleaned up.
if cluster == nil {
return DesiredClusterState{}
}
return DesiredClusterState{
ConfigMap: getDesiredConfigMap(cluster),
JmDeployment: getDesiredJobManagerDeployment(cluster),
JmService: getDesiredJobManagerService(cluster),
JmIngress: getDesiredJobManagerIngress(cluster),
TmDeployment: getDesiredTaskManagerDeployment(cluster),
Job: getDesiredJob(cluster),
NativeClusterSessionJob: getDesiredNativeClusterSessionJob(cluster),
NativeJobClusterJob: getDesiredNativeJobClusterJob(cluster),
}
}
// Gets the desired JobManager deployment spec from the FlinkCluster spec.
func getDesiredJobManagerDeployment(
flinkCluster *v1beta1.FlinkCluster) *appsv1.Deployment {
if shouldCleanup(flinkCluster, "JobManagerDeployment") {
return nil
}
if flinkCluster.Spec.NativeSessionClusterJob != nil || flinkCluster.Spec.NativeJobClusterJob != nil {
//It's a native flink session cluster
return nil
}
var clusterNamespace = flinkCluster.ObjectMeta.Namespace
var clusterName = flinkCluster.ObjectMeta.Name
var clusterSpec = flinkCluster.Spec
var imageSpec = clusterSpec.Image
var jobManagerSpec = clusterSpec.JobManager
var rpcPort = corev1.ContainerPort{Name: "rpc", ContainerPort: *jobManagerSpec.Ports.RPC}
var blobPort = corev1.ContainerPort{Name: "blob", ContainerPort: *jobManagerSpec.Ports.Blob}
var queryPort = corev1.ContainerPort{Name: "query", ContainerPort: *jobManagerSpec.Ports.Query}
var uiPort = corev1.ContainerPort{Name: "ui", ContainerPort: *jobManagerSpec.Ports.UI}
var jobManagerDeploymentName = getJobManagerDeploymentName(clusterName)
var labels = map[string]string{
"cluster": clusterName,
"app": "flink",
"component": "jobmanager",
}
// Make Volume, VolumeMount to use configMap data for flink-conf.yaml, if flinkProperties is provided.
var volumes []corev1.Volume
var volumeMounts []corev1.VolumeMount
var confVol *corev1.Volume
var confMount *corev1.VolumeMount
confVol, confMount = convertFlinkConfig(clusterName)
volumes = append(jobManagerSpec.Volumes, *confVol)
volumeMounts = append(jobManagerSpec.VolumeMounts, *confMount)
var envVars = []corev1.EnvVar{
{
Name: "JOB_MANAGER_CPU_LIMIT",
ValueFrom: &corev1.EnvVarSource{
ResourceFieldRef: &corev1.ResourceFieldSelector{
ContainerName: "jobmanager",
Resource: "limits.cpu",
Divisor: resource.MustParse("1m"),
},
},
},
{
Name: "JOB_MANAGER_MEMORY_LIMIT",
ValueFrom: &corev1.EnvVarSource{
ResourceFieldRef: &corev1.ResourceFieldSelector{
ContainerName: "jobmanager",
Resource: "limits.memory",
Divisor: resource.MustParse("1Mi"),
},
},
},
}
var readinessProbe = corev1.Probe{
Handler: corev1.Handler{
TCPSocket: &corev1.TCPSocketAction{
Port: intstr.FromInt(int(*jobManagerSpec.Ports.RPC)),
},
},
TimeoutSeconds: 10,
InitialDelaySeconds: 5,
PeriodSeconds: 5,
FailureThreshold: 60,
}
var livenessProbe = corev1.Probe{
Handler: corev1.Handler{
TCPSocket: &corev1.TCPSocketAction{
Port: intstr.FromInt(int(*jobManagerSpec.Ports.RPC)),
},
},
TimeoutSeconds: 10,
InitialDelaySeconds: 5,
PeriodSeconds: 60,
FailureThreshold: 5,
}
// Hadoop config.
var hcVolume, hcMount, hcEnv = convertHadoopConfig(clusterSpec.HadoopConfig)
if hcVolume != nil {
volumes = append(volumes, *hcVolume)
}
if hcMount != nil {
volumeMounts = append(volumeMounts, *hcMount)
}
if hcEnv != nil {
envVars = append(envVars, *hcEnv)
}
// GCP service account config.
var saVolume, saMount, saEnv = convertGCPConfig(clusterSpec.GCPConfig)
if saVolume != nil {
volumes = append(volumes, *saVolume)
}
if saMount != nil {
volumeMounts = append(volumeMounts, *saMount)
}
if saEnv != nil {
envVars = append(envVars, *saEnv)
}
envVars = append(envVars, flinkCluster.Spec.EnvVars...)
var containers = []corev1.Container{corev1.Container{
Name: "jobmanager",
Image: imageSpec.Name,
ImagePullPolicy: imageSpec.PullPolicy,
Args: []string{"jobmanager"},
Ports: []corev1.ContainerPort{
rpcPort, blobPort, queryPort, uiPort},
LivenessProbe: &livenessProbe,
ReadinessProbe: &readinessProbe,
Resources: jobManagerSpec.Resources,
Env: envVars,
VolumeMounts: volumeMounts,
}}
containers = append(containers, jobManagerSpec.Sidecars...)
var podSpec = corev1.PodSpec{
Containers: containers,
Volumes: volumes,
NodeSelector: jobManagerSpec.NodeSelector,
ImagePullSecrets: imageSpec.PullSecrets,
}
var jobManagerDeployment = &appsv1.Deployment{
ObjectMeta: metav1.ObjectMeta{
Namespace: clusterNamespace,
Name: jobManagerDeploymentName,
OwnerReferences: []metav1.OwnerReference{toOwnerReference(flinkCluster)},
Labels: labels,
},
Spec: appsv1.DeploymentSpec{
Replicas: jobManagerSpec.Replicas,
Selector: &metav1.LabelSelector{MatchLabels: labels},
Template: corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: labels,
},
Spec: podSpec,
},
},
}
return jobManagerDeployment
}
// Gets the desired JobManager service spec from a cluster spec.
func getDesiredJobManagerService(
flinkCluster *v1beta1.FlinkCluster) *corev1.Service {
if shouldCleanup(flinkCluster, "JobManagerService") {
return nil
}
if flinkCluster.Spec.NativeSessionClusterJob != nil || flinkCluster.Spec.NativeJobClusterJob != nil {
//It's a native flink session cluster
return nil
}
var clusterNamespace = flinkCluster.ObjectMeta.Namespace
var clusterName = flinkCluster.ObjectMeta.Name
var jobManagerSpec = flinkCluster.Spec.JobManager
var rpcPort = corev1.ServicePort{
Name: "rpc",
Port: *jobManagerSpec.Ports.RPC,
TargetPort: intstr.FromString("rpc")}
var blobPort = corev1.ServicePort{
Name: "blob",
Port: *jobManagerSpec.Ports.Blob,
TargetPort: intstr.FromString("blob")}
var queryPort = corev1.ServicePort{
Name: "query",
Port: *jobManagerSpec.Ports.Query,
TargetPort: intstr.FromString("query")}
var uiPort = corev1.ServicePort{
Name: "ui",
Port: *jobManagerSpec.Ports.UI,
TargetPort: intstr.FromString("ui")}
var jobManagerServiceName = getJobManagerServiceName(clusterName)
var labels = map[string]string{
"cluster": clusterName,
"app": "flink",
"component": "jobmanager",
}
var jobManagerService = &corev1.Service{
ObjectMeta: metav1.ObjectMeta{
Namespace: clusterNamespace,
Name: jobManagerServiceName,
OwnerReferences: []metav1.OwnerReference{
toOwnerReference(flinkCluster)},
Labels: labels,
},
Spec: corev1.ServiceSpec{
Selector: labels,
Ports: []corev1.ServicePort{rpcPort, blobPort, queryPort, uiPort},
},
}
// This implementation is specific to GKE, see details at
// https://cloud.google.com/kubernetes-engine/docs/how-to/exposing-apps
// https://cloud.google.com/kubernetes-engine/docs/how-to/internal-load-balancing
switch jobManagerSpec.AccessScope {
case v1beta1.AccessScopeCluster:
jobManagerService.Spec.Type = corev1.ServiceTypeClusterIP
case v1beta1.AccessScopeVPC:
jobManagerService.Spec.Type = corev1.ServiceTypeLoadBalancer
jobManagerService.Annotations =
map[string]string{"cloud.google.com/load-balancer-type": "Internal"}
case v1beta1.AccessScopeExternal:
jobManagerService.Spec.Type = corev1.ServiceTypeLoadBalancer
case v1beta1.AccessScopeNodePort:
jobManagerService.Spec.Type = corev1.ServiceTypeNodePort
default:
panic(fmt.Sprintf(
"Unknown service access cope: %v", jobManagerSpec.AccessScope))
}
return jobManagerService
}
// Gets the desired JobManager ingress spec from a cluster spec.
func getDesiredJobManagerIngress(
flinkCluster *v1beta1.FlinkCluster) *extensionsv1beta1.Ingress {
var jobManagerIngressSpec = flinkCluster.Spec.JobManager.Ingress
if jobManagerIngressSpec == nil {
return nil
}
if shouldCleanup(flinkCluster, "JobManagerIngress") {
return nil
}
if flinkCluster.Spec.NativeSessionClusterJob != nil || flinkCluster.Spec.NativeJobClusterJob != nil {
//It's a native flink session cluster
return nil
}
var clusterNamespace = flinkCluster.ObjectMeta.Namespace
var clusterName = flinkCluster.ObjectMeta.Name
var jobManagerServiceName = getJobManagerServiceName(clusterName)
var jobManagerServiceUIPort = intstr.FromString("ui")
var ingressName = getJobManagerIngressName(clusterName)
var ingressAnnotations = jobManagerIngressSpec.Annotations
var ingressHost string
var ingressTLS []extensionsv1beta1.IngressTLS
var labels = map[string]string{
"cluster": clusterName,
"app": "flink",
"component": "jobmanager",
}
if jobManagerIngressSpec.HostFormat != nil {
ingressHost = getJobManagerIngressHost(*jobManagerIngressSpec.HostFormat, clusterName)
}
if jobManagerIngressSpec.UseTLS != nil && *jobManagerIngressSpec.UseTLS == true {
var secretName string
var hosts []string
if ingressHost != "" {
hosts = []string{ingressHost}
}
if jobManagerIngressSpec.TLSSecretName != nil {
secretName = *jobManagerIngressSpec.TLSSecretName
}
if hosts != nil || secretName != "" {
ingressTLS = []extensionsv1beta1.IngressTLS{{
Hosts: hosts,
SecretName: secretName,
}}
}
}
var jobManagerIngress = &extensionsv1beta1.Ingress{
ObjectMeta: metav1.ObjectMeta{
Namespace: clusterNamespace,
Name: ingressName,
OwnerReferences: []metav1.OwnerReference{
toOwnerReference(flinkCluster)},
Labels: labels,
Annotations: ingressAnnotations,
},
Spec: extensionsv1beta1.IngressSpec{
TLS: ingressTLS,
Rules: []extensionsv1beta1.IngressRule{{
Host: ingressHost,
IngressRuleValue: extensionsv1beta1.IngressRuleValue{
HTTP: &extensionsv1beta1.HTTPIngressRuleValue{
Paths: []extensionsv1beta1.HTTPIngressPath{{
Path: "/",
Backend: extensionsv1beta1.IngressBackend{
ServiceName: jobManagerServiceName,
ServicePort: jobManagerServiceUIPort,
},
}},
},
},
}},
},
}
return jobManagerIngress
}
// Gets the desired TaskManager deployment spec from a cluster spec.
func getDesiredTaskManagerDeployment(
flinkCluster *v1beta1.FlinkCluster) *appsv1.Deployment {
if shouldCleanup(flinkCluster, "TaskManagerDeployment") {
return nil
}
if flinkCluster.Spec.NativeSessionClusterJob != nil || flinkCluster.Spec.NativeJobClusterJob != nil {
//It's a native flink session cluster
return nil
}
var clusterNamespace = flinkCluster.ObjectMeta.Namespace
var clusterName = flinkCluster.ObjectMeta.Name
var clusterSpec = flinkCluster.Spec
var imageSpec = flinkCluster.Spec.Image
var taskManagerSpec = flinkCluster.Spec.TaskManager
var dataPort = corev1.ContainerPort{Name: "data", ContainerPort: *taskManagerSpec.Ports.Data}
var rpcPort = corev1.ContainerPort{Name: "rpc", ContainerPort: *taskManagerSpec.Ports.RPC}
var queryPort = corev1.ContainerPort{Name: "query", ContainerPort: *taskManagerSpec.Ports.Query}
var taskManagerDeploymentName = getTaskManagerDeploymentName(clusterName)
var labels = map[string]string{
"cluster": clusterName,
"app": "flink",
"component": "taskmanager",
}
// Make Volume, VolumeMount to use configMap data for flink-conf.yaml
var volumes []corev1.Volume
var volumeMounts []corev1.VolumeMount
// Flink config.
var confVol, confMount = convertFlinkConfig(clusterName)
volumes = append(taskManagerSpec.Volumes, *confVol)
volumeMounts = append(taskManagerSpec.VolumeMounts, *confMount)
var envVars = []corev1.EnvVar{
{
Name: "TASK_MANAGER_CPU_LIMIT",
ValueFrom: &corev1.EnvVarSource{
ResourceFieldRef: &corev1.ResourceFieldSelector{
ContainerName: "taskmanager",
Resource: "limits.cpu",
Divisor: resource.MustParse("1m"),
},
},
},
{
Name: "TASK_MANAGER_MEMORY_LIMIT",
ValueFrom: &corev1.EnvVarSource{
ResourceFieldRef: &corev1.ResourceFieldSelector{
ContainerName: "taskmanager",
Resource: "limits.memory",
Divisor: resource.MustParse("1Mi"),
},
},
},
}
var readinessProbe = corev1.Probe{
Handler: corev1.Handler{
TCPSocket: &corev1.TCPSocketAction{
Port: intstr.FromInt(int(*taskManagerSpec.Ports.RPC)),
},
},
TimeoutSeconds: 10,
InitialDelaySeconds: 5,
PeriodSeconds: 5,
FailureThreshold: 60,
}
var livenessProbe = corev1.Probe{
Handler: corev1.Handler{
TCPSocket: &corev1.TCPSocketAction{
Port: intstr.FromInt(int(*taskManagerSpec.Ports.RPC)),
},
},
TimeoutSeconds: 10,
InitialDelaySeconds: 5,
PeriodSeconds: 60,
FailureThreshold: 5,
}
// Hadoop config.
var hcVolume, hcMount, hcEnv = convertHadoopConfig(clusterSpec.HadoopConfig)
if hcVolume != nil {
volumes = append(volumes, *hcVolume)
}
if hcMount != nil {
volumeMounts = append(volumeMounts, *hcMount)
}
if hcEnv != nil {
envVars = append(envVars, *hcEnv)
}
// GCP service account config.
var saVolume, saMount, saEnv = convertGCPConfig(clusterSpec.GCPConfig)
if saVolume != nil {
volumes = append(volumes, *saVolume)
}
if saMount != nil {
volumeMounts = append(volumeMounts, *saMount)
}
if saEnv != nil {
envVars = append(envVars, *saEnv)
}
envVars = append(envVars, flinkCluster.Spec.EnvVars...)
var containers = []corev1.Container{corev1.Container{
Name: "taskmanager",
Image: imageSpec.Name,
ImagePullPolicy: imageSpec.PullPolicy,
Args: []string{"taskmanager"},
Ports: []corev1.ContainerPort{
dataPort, rpcPort, queryPort},
LivenessProbe: &livenessProbe,
ReadinessProbe: &readinessProbe,
Resources: taskManagerSpec.Resources,
Env: envVars,
VolumeMounts: volumeMounts,
}}
containers = append(containers, taskManagerSpec.Sidecars...)
var podSpec = corev1.PodSpec{
Containers: containers,
Volumes: volumes,
NodeSelector: taskManagerSpec.NodeSelector,
ImagePullSecrets: imageSpec.PullSecrets,
}
var taskManagerDeployment = &appsv1.Deployment{
ObjectMeta: metav1.ObjectMeta{
Namespace: clusterNamespace,
Name: taskManagerDeploymentName,
OwnerReferences: []metav1.OwnerReference{
toOwnerReference(flinkCluster)},
Labels: labels,
},
Spec: appsv1.DeploymentSpec{
Replicas: &taskManagerSpec.Replicas,
Selector: &metav1.LabelSelector{MatchLabels: labels},
Template: corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: labels,
},
Spec: podSpec,
},
},
}
return taskManagerDeployment
}
// Gets the desired configMap.
func getDesiredConfigMap(
flinkCluster *v1beta1.FlinkCluster) *corev1.ConfigMap {
if shouldCleanup(flinkCluster, "ConfigMap") {
return nil
}
if flinkCluster.Spec.NativeSessionClusterJob != nil || flinkCluster.Spec.NativeJobClusterJob != nil {
//It's a native flink session cluster
return nil
}
var clusterNamespace = flinkCluster.ObjectMeta.Namespace
var clusterName = flinkCluster.ObjectMeta.Name
var flinkProperties = flinkCluster.Spec.FlinkProperties
var jmPorts = flinkCluster.Spec.JobManager.Ports
var tmPorts = flinkCluster.Spec.TaskManager.Ports
var configMapName = getConfigMapName(clusterName)
var labels = map[string]string{
"cluster": clusterName,
"app": "flink",
}
var flinkHeapSize = calFlinkHeapSize(flinkCluster)
// Properties which should be provided from real deployed environment.
var flinkProps = map[string]string{
"jobmanager.rpc.address": getJobManagerServiceName(clusterName),
"jobmanager.rpc.port": strconv.FormatInt(int64(*jmPorts.RPC), 10),
"blob.server.port": strconv.FormatInt(int64(*jmPorts.Blob), 10),
"query.server.port": strconv.FormatInt(int64(*jmPorts.Query), 10),
"rest.port": strconv.FormatInt(int64(*jmPorts.UI), 10),
"taskmanager.rpc.port": strconv.FormatInt(int64(*tmPorts.RPC), 10),
}
if flinkHeapSize["jobmanager.heap.size"] != "" {
flinkProps["jobmanager.heap.size"] = flinkHeapSize["jobmanager.heap.size"]
}
if flinkHeapSize["taskmanager.heap.size"] != "" {
flinkProps["taskmanager.heap.size"] = flinkHeapSize["taskmanager.heap.size"]
}
// Add custom Flink properties.
for k, v := range flinkProperties {
// Do not allow to override properties from real deployment.
if _, ok := flinkSysProps[k]; ok {
continue
}
flinkProps[k] = v
}
// TODO: Provide logging options: log4j-console.properties and log4j.properties
var log4jPropName = "log4j-console.properties"
var logbackXMLName = "logback-console.xml"
var configMap = &corev1.ConfigMap{
ObjectMeta: metav1.ObjectMeta{
Namespace: clusterNamespace,
Name: configMapName,
OwnerReferences: []metav1.OwnerReference{
toOwnerReference(flinkCluster)},
Labels: labels,
},
Data: map[string]string{
"flink-conf.yaml": getFlinkProperties(flinkProps),
log4jPropName: getLogConf()[log4jPropName],
logbackXMLName: getLogConf()[logbackXMLName],
"submit-job.sh": submitJobScript,
},
}
return configMap
}
// Gets the desired job spec from a cluster spec.
func getDesiredJob(
flinkCluster *v1beta1.FlinkCluster) *batchv1.Job {
var jobSpec = flinkCluster.Spec.Job
if jobSpec == nil {
return nil
}
if flinkCluster.Spec.NativeSessionClusterJob != nil || flinkCluster.Spec.NativeJobClusterJob != nil {
//It's a native flink session cluster
return nil
}
var controlStatus = flinkCluster.Status.Control
// We need to watch whether job is cancelled already if jobSpec.CancelRequested is deprecated
if (flinkCluster.Status.Components.Job != nil && flinkCluster.Status.Components.Job.State == v1beta1.JobStateCancelled) ||
(jobSpec.CancelRequested != nil && *jobSpec.CancelRequested) ||
(controlStatus != nil && controlStatus.Name == v1beta1.ControlNameCancel && controlStatus.State == v1beta1.ControlStateProgressing) {
return nil
}
var clusterSpec = flinkCluster.Spec
var imageSpec = clusterSpec.Image
var jobManagerSpec = clusterSpec.JobManager
var clusterNamespace = flinkCluster.ObjectMeta.Namespace
var clusterName = flinkCluster.ObjectMeta.Name
var jobName = getJobName(clusterName)
var jobManagerServiceName = clusterName + "-jobmanager"
var jobManagerAddress = fmt.Sprintf(
"%s:%d", jobManagerServiceName, *jobManagerSpec.Ports.UI)
var labels = map[string]string{
"cluster": clusterName,
"app": "flink",
}
var jobArgs = []string{"bash", "/opt/flink-operator/submit-job.sh"}
jobArgs = append(jobArgs, "--jobmanager", jobManagerAddress)
if jobSpec.ClassName != nil {
jobArgs = append(jobArgs, "--class", *jobSpec.ClassName)
}
var jobStatus = flinkCluster.Status.Components.Job
var fromSavepoint = convertFromSavepoint(jobSpec, jobStatus)
if fromSavepoint != nil {
jobArgs = append(jobArgs, "--fromSavepoint", *fromSavepoint)
}
if jobSpec.AllowNonRestoredState != nil &&
*jobSpec.AllowNonRestoredState == true {
jobArgs = append(jobArgs, "--allowNonRestoredState")
}
if jobSpec.Parallelism != nil {
jobArgs = append(
jobArgs, "--parallelism", fmt.Sprint(*jobSpec.Parallelism))
}
if jobSpec.NoLoggingToStdout != nil &&
*jobSpec.NoLoggingToStdout == true {
jobArgs = append(jobArgs, "--sysoutLogging")
}
jobArgs = append(jobArgs, "--detached")
var envVars = []corev1.EnvVar{}
// If the JAR file is remote, put the URI in the env variable
// FLINK_JOB_JAR_URI and rewrite the JAR path to a local path. The entrypoint
// script of the container will download it before submitting it to Flink.
var jarPath = jobSpec.JarFile
if strings.Contains(jobSpec.JarFile, "://") {
var parts = strings.Split(jobSpec.JarFile, "/")
jarPath = "/opt/flink/job/" + parts[len(parts)-1]
envVars = append(envVars, corev1.EnvVar{
Name: "FLINK_JOB_JAR_URI",
Value: jobSpec.JarFile,
})
}
jobArgs = append(jobArgs, jarPath)
jobArgs = append(jobArgs, jobSpec.Args...)
var volumes []corev1.Volume
var volumeMounts []corev1.VolumeMount
volumes = append(volumes, jobSpec.Volumes...)
volumeMounts = append(volumeMounts, jobSpec.VolumeMounts...)
// Submit job script config.
var sbsVolume *corev1.Volume
var sbsMount *corev1.VolumeMount
sbsVolume, sbsMount = convertSubmitJobScript(clusterName)
volumes = append(volumes, *sbsVolume)
volumeMounts = append(volumeMounts, *sbsMount)
// Hadoop config.
var hcVolume, hcMount, hcEnv = convertHadoopConfig(clusterSpec.HadoopConfig)
if hcVolume != nil {
volumes = append(volumes, *hcVolume)
}
if hcMount != nil {
volumeMounts = append(volumeMounts, *hcMount)
}
if hcEnv != nil {
envVars = append(envVars, *hcEnv)
}
// GCP service account config.
var saVolume, saMount, saEnv = convertGCPConfig(clusterSpec.GCPConfig)
if saVolume != nil {
volumes = append(volumes, *saVolume)
}
if saMount != nil {
volumeMounts = append(volumeMounts, *saMount)
}
if saEnv != nil {
envVars = append(envVars, *saEnv)
}
envVars = append(envVars, flinkCluster.Spec.EnvVars...)
var podSpec = corev1.PodSpec{
InitContainers: convertJobInitContainers(jobSpec),
Containers: []corev1.Container{
corev1.Container{
Name: "main",
Image: imageSpec.Name,
ImagePullPolicy: imageSpec.PullPolicy,
Args: jobArgs,
Env: envVars,
VolumeMounts: volumeMounts,
},
},
RestartPolicy: corev1.RestartPolicyNever,
Volumes: volumes,
ImagePullSecrets: imageSpec.PullSecrets,
}
// Disable the retry mechanism of k8s Job, all retires should be initiated
// by the operator based on the job restart policy. This is because Flink
// jobs are stateful, if a job fails after running for 10 hours, we probably
// don't want to start over from the beginning, instead we want to resume
// the job from the latest savepoint which means strictly speaking it is no
// longer the same job as the previous one because the `--fromSavepoint`
// parameter has changed.
var backoffLimit int32 = 0
var job = &batchv1.Job{
ObjectMeta: metav1.ObjectMeta{
Namespace: clusterNamespace,
Name: jobName,
OwnerReferences: []metav1.OwnerReference{
toOwnerReference(flinkCluster)},
Labels: labels,
},
Spec: batchv1.JobSpec{
Template: corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{Labels: labels},
Spec: podSpec,
},
BackoffLimit: &backoffLimit,
},
}
return job
}
func getDesiredNativeClusterSessionJob(
flinkCluster *v1beta1.FlinkCluster) *batchv1.Job {
var jobSpec = flinkCluster.Spec.NativeSessionClusterJob
if jobSpec == nil {
return nil
}
if flinkCluster.Spec.NativeJobClusterJob != nil {
//It's a native flink job cluster
return nil
}
var clusterSpec = flinkCluster.Spec
var imageSpec = clusterSpec.Image
var clusterNamespace = flinkCluster.ObjectMeta.Namespace
var clusterName = flinkCluster.ObjectMeta.Name
var jobName = getNativeSessionClusterJobName(clusterName)
var labels = map[string]string{
"cluster": clusterName,
"app": "flinkNativeSessionCluster",
}
var jobArgs = []string{"/opt/flink/bin/kubernetes-session.sh"}
jobArgs = append(jobArgs, "-Dkubernetes.cluster-id="+clusterName)
if imageSpec.Name != "" {
jobArgs = append(jobArgs, "-Dkubernetes.container.image="+imageSpec.Name)
}
if jobSpec.EntryPath != nil {
jobArgs = append(jobArgs, *jobSpec.EntryPath)
}
if jobSpec.CongfigDir != nil {
jobArgs = append(jobArgs, *jobSpec.CongfigDir)
}
if jobSpec.FlinkClusterSA != nil {
jobArgs = append(jobArgs, *jobSpec.FlinkClusterSA)
}
//TODO: check all properties and append to jobArgs.
var envVars = []corev1.EnvVar{}
var volumes []corev1.Volume
var volumeMounts []corev1.VolumeMount
// Hadoop config.
var hcVolume, hcMount, hcEnv = convertHadoopConfig(clusterSpec.HadoopConfig)
if hcVolume != nil {
volumes = append(volumes, *hcVolume)
}
if hcMount != nil {
volumeMounts = append(volumeMounts, *hcMount)
}
if hcEnv != nil {
envVars = append(envVars, *hcEnv)
}
// GCP service account config.
var saVolume, saMount, saEnv = convertGCPConfig(clusterSpec.GCPConfig)
if saVolume != nil {
volumes = append(volumes, *saVolume)
}
if saMount != nil {
volumeMounts = append(volumeMounts, *saMount)
}
if saEnv != nil {
envVars = append(envVars, *saEnv)
}
envVars = append(envVars, flinkCluster.Spec.EnvVars...)
var podSpec = corev1.PodSpec{
Containers: []corev1.Container{
corev1.Container{
Name: "main",
Image: imageSpec.Name,
ImagePullPolicy: imageSpec.PullPolicy,
Args: jobArgs,
Env: envVars,
VolumeMounts: volumeMounts,
},
},
RestartPolicy: corev1.RestartPolicyNever,
Volumes: volumes,
ImagePullSecrets: imageSpec.PullSecrets,
}
// Disable the retry mechanism of k8s Job, all retires should be initiated
// by the operator based on the job restart policy. This is because Flink
// jobs are stateful, if a job fails after running for 10 hours, we probably
// don't want to start over from the beginning, instead we want to resume
// the job from the latest savepoint which means strictly speaking it is no
// longer the same job as the previous one because the `--fromSavepoint`
// parameter has changed.
var backoffLimit int32 = 0
var job = &batchv1.Job{
ObjectMeta: metav1.ObjectMeta{
Namespace: clusterNamespace,
Name: jobName,
OwnerReferences: []metav1.OwnerReference{
toOwnerReference(flinkCluster)},
Labels: labels,
},
Spec: batchv1.JobSpec{
Template: corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{Labels: labels},
Spec: podSpec,
},
BackoffLimit: &backoffLimit,
},
}
return job
}
func getDesiredNativeJobClusterJob(
flinkCluster *v1beta1.FlinkCluster) *batchv1.Job {
var jobSpec = flinkCluster.Spec.NativeJobClusterJob
if jobSpec == nil {
return nil
}
var clusterSpec = flinkCluster.Spec
var imageSpec = clusterSpec.Image
var clusterNamespace = flinkCluster.ObjectMeta.Namespace
var clusterName = flinkCluster.ObjectMeta.Name
var jobName = getNativeJobClusterJobName(clusterName)
var labels = map[string]string{
"cluster": clusterName,
"app": "flinkNativeSessionCluster",
}
var jobArgs = []string{"/opt/flink/bin/flink", "run", "-d", "-e", "kubernetes-per-job"}
jobArgs = append(jobArgs, "-Dkubernetes.cluster-id="+clusterName)
if imageSpec.Name != "" {
jobArgs = append(jobArgs, "-Dkubernetes.container.image="+imageSpec.Name)
}
if jobSpec.HeapSize != nil {
jobArgs = append(jobArgs, "-Djobmanager.heap.size="+strconv.Itoa(int(*jobSpec.HeapSize))+"m")
}
if jobSpec.MemoryProcessSize != nil {
jobArgs = append(jobArgs, "-Djobmanager.heap.size="+strconv.Itoa(int(*jobSpec.MemoryProcessSize))+"m")
}
if jobSpec.NumberOfTaskSlots != nil {
jobArgs = append(jobArgs, "-Djobmanager.heap.size="+strconv.Itoa(int(*jobSpec.NumberOfTaskSlots)))
}
jobArgs = append(jobArgs, jobSpec.JarFile)
//TODO: check all properties and append to jobArgs.
var envVars = []corev1.EnvVar{}
var volumes []corev1.Volume
var volumeMounts []corev1.VolumeMount
// Hadoop config.
var hcVolume, hcMount, hcEnv = convertHadoopConfig(clusterSpec.HadoopConfig)
if hcVolume != nil {
volumes = append(volumes, *hcVolume)
}
if hcMount != nil {
volumeMounts = append(volumeMounts, *hcMount)
}
if hcEnv != nil {
envVars = append(envVars, *hcEnv)
}
// GCP service account config.
var saVolume, saMount, saEnv = convertGCPConfig(clusterSpec.GCPConfig)
if saVolume != nil {
volumes = append(volumes, *saVolume)
}
if saMount != nil {
volumeMounts = append(volumeMounts, *saMount)
}
if saEnv != nil {
envVars = append(envVars, *saEnv)
}
envVars = append(envVars, flinkCluster.Spec.EnvVars...)
var podSpec = corev1.PodSpec{
Containers: []corev1.Container{
corev1.Container{
Name: "main",
Image: imageSpec.Name,
ImagePullPolicy: imageSpec.PullPolicy,
Args: jobArgs,
Env: envVars,
VolumeMounts: volumeMounts,
},
},
RestartPolicy: corev1.RestartPolicyNever,
Volumes: volumes,
ImagePullSecrets: imageSpec.PullSecrets,
}
// Disable the retry mechanism of k8s Job, all retires should be initiated
// by the operator based on the job restart policy. This is because Flink
// jobs are stateful, if a job fails after running for 10 hours, we probably
// don't want to start over from the beginning, instead we want to resume
// the job from the latest savepoint which means strictly speaking it is no
// longer the same job as the previous one because the `--fromSavepoint`
// parameter has changed.
var backoffLimit int32 = 0
var job = &batchv1.Job{
ObjectMeta: metav1.ObjectMeta{
Namespace: clusterNamespace,
Name: jobName,
OwnerReferences: []metav1.OwnerReference{
toOwnerReference(flinkCluster)},
Labels: labels,
},
Spec: batchv1.JobSpec{
Template: corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{Labels: labels},
Spec: podSpec,
},
BackoffLimit: &backoffLimit,
},
}
return job
}
func convertFromSavepoint(
jobSpec *v1beta1.JobSpec, jobStatus *v1beta1.JobStatus) *string {
if shouldRestartJob(jobSpec.RestartPolicy, jobStatus) {
return &jobStatus.SavepointLocation