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pod_models.go
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pod_models.go
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/*
* pod_models.go
*
* This source file is part of the FoundationDB open source project
*
* Copyright 2019 Apple Inc. and the FoundationDB project authors
*
* 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 internal
import (
"fmt"
"strconv"
"strings"
fdbv1beta2 "github.com/FoundationDB/fdb-kubernetes-operator/api/v1beta2"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/intstr"
"k8s.io/utils/pointer"
)
// GetProcessGroupIDFromPodName returns the process group ID for a given Pod name.
func GetProcessGroupIDFromPodName(cluster *fdbv1beta2.FoundationDBCluster, podName string) fdbv1beta2.ProcessGroupID {
tmpName := strings.ReplaceAll(podName, cluster.Name, "")[1:]
if cluster.Spec.ProcessGroupIDPrefix != "" {
return fdbv1beta2.ProcessGroupID(fmt.Sprintf("%s-%s", cluster.Spec.ProcessGroupIDPrefix, tmpName))
}
return fdbv1beta2.ProcessGroupID(tmpName)
}
func generateServicePorts(processesPerPod int) []corev1.ServicePort {
ports := make([]corev1.ServicePort, 0, processesPerPod*2)
for i := 1; i <= processesPerPod; i++ {
tlsPortName := "tls"
nonTlSPortName := "non-tls"
// We keep the current behaviour and only add the process number to ports for
// processes > 1.
if i != 1 {
tlsPortName = fmt.Sprintf("%s-%d", tlsPortName, i)
nonTlSPortName = fmt.Sprintf("%s-%d", nonTlSPortName, i)
}
ports = append(ports, corev1.ServicePort{
Name: tlsPortName,
Port: int32(fdbv1beta2.GetProcessPort(i, true)),
}, corev1.ServicePort{
Name: nonTlSPortName,
Port: int32(fdbv1beta2.GetProcessPort(i, false)),
})
}
return ports
}
// GetService builds a service for a new process group
func GetService(cluster *fdbv1beta2.FoundationDBCluster, processGroup *fdbv1beta2.ProcessGroupStatus) (*corev1.Service, error) {
owner := BuildOwnerReference(cluster.TypeMeta, cluster.ObjectMeta)
metadata := GetObjectMetadata(cluster, nil, processGroup.ProcessClass, processGroup.ProcessGroupID)
metadata.Name = processGroup.GetPodName(cluster)
metadata.OwnerReferences = owner
processesPerPod := 1
if processGroup.ProcessClass == fdbv1beta2.ProcessClassStorage {
processesPerPod = cluster.GetStorageServersPerPod()
}
var ipFamilies []corev1.IPFamily
if cluster.IsPodIPFamily6() {
ipFamilies = []corev1.IPFamily{corev1.IPv6Protocol}
}
return &corev1.Service{
ObjectMeta: metadata,
Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeClusterIP,
Ports: generateServicePorts(processesPerPod),
PublishNotReadyAddresses: true,
Selector: GetPodMatchLabels(cluster, "", string(processGroup.ProcessGroupID)),
IPFamilies: ipFamilies,
},
}, nil
}
// GetPod builds a pod for a new process group
func GetPod(cluster *fdbv1beta2.FoundationDBCluster, processGroup *fdbv1beta2.ProcessGroupStatus) (*corev1.Pod, error) {
owner := BuildOwnerReference(cluster.TypeMeta, cluster.ObjectMeta)
spec, err := GetPodSpec(cluster, processGroup)
if err != nil {
return nil, err
}
specHash, err := GetPodSpecHash(cluster, processGroup, spec)
if err != nil {
return nil, err
}
metadata := GetPodMetadata(cluster, processGroup.ProcessClass, processGroup.ProcessGroupID, specHash)
metadata.Name = processGroup.GetPodName(cluster)
metadata.OwnerReferences = owner
return &corev1.Pod{
ObjectMeta: metadata,
Spec: *spec,
}, nil
}
// GetImage returns the image for container
func GetImage(image string, configs []fdbv1beta2.ImageConfig, versionString string, allowTagOverride bool) (string, error) {
if image != "" {
imageComponents := strings.Split(image, ":")
if len(imageComponents) > 1 {
if allowTagOverride {
return image, nil
}
// If the specified image contains a tag and allowOverride is false return an error
return "", fmt.Errorf("image should not contain a tag but contains the tag \"%s\", please remove the tag", imageComponents[1])
}
configs = append([]fdbv1beta2.ImageConfig{{BaseImage: image}}, configs...)
}
return fdbv1beta2.SelectImageConfig(configs, versionString).Image(), nil
}
// getInitContainer returns the init container based on the provided PodSpec. If useUnifiedImages is true the init container
// will be an empty container struct.
func getInitContainer(useUnifiedImages bool, podSpec *corev1.PodSpec) (*corev1.Container, error) {
if useUnifiedImages {
return &corev1.Container{}, nil
}
for index, container := range podSpec.InitContainers {
if container.Name == fdbv1beta2.InitContainerName {
return &podSpec.InitContainers[index], nil
}
}
return nil, fmt.Errorf("could not create init container")
}
// getContainers returns the main and the sidecar container or an error if one of these is empty.
func getContainers(podSpec *corev1.PodSpec) (*corev1.Container, *corev1.Container, error) {
var mainContainer *corev1.Container
var sidecarContainer *corev1.Container
for index, container := range podSpec.Containers {
if container.Name == fdbv1beta2.MainContainerName {
mainContainer = &podSpec.Containers[index]
} else if container.Name == fdbv1beta2.SidecarContainerName {
sidecarContainer = &podSpec.Containers[index]
}
}
if mainContainer == nil {
return nil, nil, fmt.Errorf("could not create main container")
}
if sidecarContainer == nil {
return nil, nil, fmt.Errorf("could not create sidecar container")
}
return mainContainer, sidecarContainer, nil
}
func configureContainersForUnifiedImages(cluster *fdbv1beta2.FoundationDBCluster, mainContainer *corev1.Container, sidecarContainer *corev1.Container, processGroupID fdbv1beta2.ProcessGroupID, processClass fdbv1beta2.ProcessClass) error {
mainContainer.Args = []string{
"--input-dir", "/var/dynamic-conf",
"--log-path", "/var/log/fdb-trace-logs/monitor.log",
}
serversPerPod := cluster.GetDesiredServersPerPod(processClass)
if serversPerPod > 1 {
desiredServersPerPod := strconv.Itoa(serversPerPod)
mainContainer.Args = append(mainContainer.Args, "--process-count", desiredServersPerPod)
mainContainer.Env = append(mainContainer.Env, corev1.EnvVar{Name: processClass.GetServersPerPodEnvName(), Value: desiredServersPerPod})
}
mainContainer.VolumeMounts = append(mainContainer.VolumeMounts,
corev1.VolumeMount{Name: "data", MountPath: "/var/fdb/data"},
corev1.VolumeMount{Name: "config-map", MountPath: "/var/dynamic-conf"},
corev1.VolumeMount{Name: "shared-binaries", MountPath: "/var/fdb/shared-binaries"},
corev1.VolumeMount{Name: "fdb-trace-logs", MountPath: "/var/log/fdb-trace-logs"},
)
mainContainer.Env = append(mainContainer.Env, getEnvForMonitorConfigSubstitution(cluster, processGroupID)...)
mainContainer.Env = append(mainContainer.Env, corev1.EnvVar{Name: "FDB_IMAGE_TYPE", Value: string(FDBImageTypeUnified)})
mainContainer.Env = append(mainContainer.Env, corev1.EnvVar{Name: "FDB_POD_NAME", ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{FieldPath: "metadata.name"},
}})
mainContainer.Env = append(mainContainer.Env, corev1.EnvVar{Name: "FDB_POD_NAMESPACE", ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{FieldPath: "metadata.namespace"},
}})
// Configure sidecar
sidecarImage, err := GetImage(sidecarContainer.Image, cluster.Spec.MainContainer.ImageConfigs, cluster.GetRunningVersion(), false)
if err != nil {
return err
}
sidecarContainer.Image = sidecarImage
sidecarContainer.Args = []string{
"--mode", "sidecar",
"--output-dir", "/var/fdb/shared-binaries",
"--main-container-version", cluster.GetRunningVersion(),
"--copy-binary", "fdbserver",
"--copy-binary", "fdbcli",
"--log-path", "/var/log/fdb-trace-logs/monitor.log",
}
sidecarContainer.VolumeMounts = append(sidecarContainer.VolumeMounts,
corev1.VolumeMount{Name: "shared-binaries", MountPath: "/var/fdb/shared-binaries"},
corev1.VolumeMount{Name: "fdb-trace-logs", MountPath: "/var/log/fdb-trace-logs"},
)
for _, crashObjs := range cluster.Spec.Buggify.CrashLoopContainers {
for _, pid := range crashObjs.Targets {
if pid == processGroupID || pid == "*" {
if crashObjs.ContainerName == mainContainer.Name {
mainContainer.Command = []string{"crash-loop"}
mainContainer.Args = []string{"crash-loop"}
} else if crashObjs.ContainerName == sidecarContainer.Name {
sidecarContainer.Command = []string{"crash-loop"}
sidecarContainer.Args = []string{"crash-loop"}
}
}
}
}
return nil
}
// ensureSecurityContextIsPresent sets the SecurityContext for a container is absent and ensures the ReadOnlyRootFilesystem
// is set to true if not set.
func ensureSecurityContextIsPresent(container *corev1.Container) {
if container.SecurityContext == nil {
container.SecurityContext = &corev1.SecurityContext{}
}
if container.SecurityContext.ReadOnlyRootFilesystem == nil {
container.SecurityContext.ReadOnlyRootFilesystem = pointer.Bool(true)
}
}
func setAffinityForFaultDomain(cluster *fdbv1beta2.FoundationDBCluster, podSpec *corev1.PodSpec, processClass fdbv1beta2.ProcessClass) {
faultDomainKey := cluster.Spec.FaultDomain.Key
if faultDomainKey == "" {
faultDomainKey = corev1.LabelHostname
}
if faultDomainKey != fdbv1beta2.NoneFaultDomainKey && faultDomainKey != "foundationdb.org/kubernetes-cluster" {
if podSpec.Affinity == nil {
podSpec.Affinity = &corev1.Affinity{}
}
if podSpec.Affinity.PodAntiAffinity == nil {
podSpec.Affinity.PodAntiAffinity = &corev1.PodAntiAffinity{}
}
labelSelectors := make(map[string]string, len(cluster.GetMatchLabels())+1)
for key, value := range cluster.GetMatchLabels() {
labelSelectors[key] = value
}
processClassLabel := cluster.GetProcessClassLabel()
labelSelectors[processClassLabel] = string(processClass)
podSpec.Affinity.PodAntiAffinity.PreferredDuringSchedulingIgnoredDuringExecution = append(podSpec.Affinity.PodAntiAffinity.PreferredDuringSchedulingIgnoredDuringExecution,
corev1.WeightedPodAffinityTerm{
Weight: 1,
PodAffinityTerm: corev1.PodAffinityTerm{
TopologyKey: faultDomainKey,
LabelSelector: &metav1.LabelSelector{MatchLabels: labelSelectors},
},
})
}
}
func configureVolumesForContainers(cluster *fdbv1beta2.FoundationDBCluster, podSpec *corev1.PodSpec, volumeClaimTemplate *corev1.PersistentVolumeClaim, podName string, processClass fdbv1beta2.ProcessClass) {
useUnifiedImages := pointer.BoolDeref(cluster.Spec.UseUnifiedImage, false)
monitorConfKey := GetConfigMapMonitorConfEntry(processClass, GetDesiredImageType(cluster), cluster.GetDesiredServersPerPod(processClass))
var monitorConfFile string
if useUnifiedImages {
monitorConfFile = "config.json"
} else {
monitorConfFile = "fdbmonitor.conf"
}
configMapItems := []corev1.KeyToPath{
{Key: monitorConfKey, Path: monitorConfFile},
{Key: ClusterFileKey, Path: "fdb.cluster"},
}
if len(cluster.Spec.TrustedCAs) > 0 {
configMapItems = append(configMapItems, corev1.KeyToPath{Key: "ca-file", Path: "ca.pem"})
}
var configMapRefName string
if cluster.Spec.ConfigMap != nil && cluster.Spec.ConfigMap.Name != "" {
configMapRefName = fmt.Sprintf("%s-%s", cluster.Name, cluster.Spec.ConfigMap.Name)
} else {
configMapRefName = fmt.Sprintf("%s-config", cluster.Name)
}
var mainVolumeSource corev1.VolumeSource
if processClass.IsStateful() {
var volumeClaimSourceName string
if volumeClaimTemplate != nil && volumeClaimTemplate.Name != "" {
volumeClaimSourceName = fmt.Sprintf("%s-%s", podName, volumeClaimTemplate.Name)
} else {
volumeClaimSourceName = fmt.Sprintf("%s-data", podName)
}
mainVolumeSource.PersistentVolumeClaim = &corev1.PersistentVolumeClaimVolumeSource{
ClaimName: volumeClaimSourceName,
}
} else {
mainVolumeSource.EmptyDir = &corev1.EmptyDirVolumeSource{}
}
volumes := []corev1.Volume{
{Name: "data", VolumeSource: mainVolumeSource},
}
if useUnifiedImages {
volumes = append(volumes, corev1.Volume{Name: "shared-binaries", VolumeSource: corev1.VolumeSource{EmptyDir: &corev1.EmptyDirVolumeSource{}}})
} else {
volumes = append(volumes, corev1.Volume{Name: "dynamic-conf", VolumeSource: corev1.VolumeSource{EmptyDir: &corev1.EmptyDirVolumeSource{}}})
}
volumes = append(volumes,
corev1.Volume{Name: "config-map", VolumeSource: corev1.VolumeSource{ConfigMap: &corev1.ConfigMapVolumeSource{
LocalObjectReference: corev1.LocalObjectReference{Name: configMapRefName},
Items: configMapItems,
}}},
corev1.Volume{Name: "fdb-trace-logs", VolumeSource: corev1.VolumeSource{EmptyDir: &corev1.EmptyDirVolumeSource{}}},
)
podSpec.Volumes = append(podSpec.Volumes, volumes...)
}
func configureNoSchedule(podSpec *corev1.PodSpec, processGroupID fdbv1beta2.ProcessGroupID, noSchedules []fdbv1beta2.ProcessGroupID) {
for _, noSchedulePID := range noSchedules {
if processGroupID != noSchedulePID {
continue
}
if podSpec.Affinity == nil {
podSpec.Affinity = &corev1.Affinity{}
}
if podSpec.Affinity.NodeAffinity == nil {
podSpec.Affinity.NodeAffinity = &corev1.NodeAffinity{}
}
if podSpec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution == nil {
podSpec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution = &corev1.NodeSelector{}
}
podSpec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution.NodeSelectorTerms = []corev1.NodeSelectorTerm{
{
MatchExpressions: []corev1.NodeSelectorRequirement{{
Key: fdbv1beta2.NodeSelectorNoScheduleLabel,
Operator: corev1.NodeSelectorOpIn,
Values: []string{"true"},
}},
},
}
}
}
// GetPodSpec builds a pod spec for a FoundationDB pod
func GetPodSpec(cluster *fdbv1beta2.FoundationDBCluster, processGroup *fdbv1beta2.ProcessGroupStatus) (*corev1.PodSpec, error) {
processSettings := cluster.GetProcessSettings(processGroup.ProcessClass)
podSpec := processSettings.PodTemplate.Spec.DeepCopy()
useUnifiedImages := pointer.BoolDeref(cluster.Spec.UseUnifiedImage, false)
mainContainer, sidecarContainer, err := getContainers(podSpec)
if err != nil {
return nil, err
}
initContainer, err := getInitContainer(useUnifiedImages, podSpec)
if err != nil {
return nil, err
}
desiredVersion := cluster.GetRunningVersion()
if cluster.VersionCompatibleUpgradeInProgress() {
desiredVersion = cluster.Spec.Version
}
image, err := GetImage(mainContainer.Image, cluster.Spec.MainContainer.ImageConfigs, desiredVersion, false)
if err != nil {
return nil, err
}
mainContainer.Image = image
extendEnv(mainContainer, corev1.EnvVar{Name: "FDB_CLUSTER_FILE", Value: "/var/dynamic-conf/fdb.cluster"})
if len(cluster.Spec.TrustedCAs) > 0 {
extendEnv(mainContainer, corev1.EnvVar{Name: "FDB_TLS_CA_FILE", Value: "/var/dynamic-conf/ca.pem"})
}
logGroup := cluster.Spec.LogGroup
if logGroup == "" {
logGroup = cluster.Name
}
podName := processGroup.GetPodName(cluster)
if useUnifiedImages {
err = configureContainersForUnifiedImages(cluster, mainContainer, sidecarContainer, processGroup.ProcessGroupID, processGroup.ProcessClass)
if err != nil {
return nil, err
}
} else {
mainContainer.Command = []string{"sh", "-c"}
args := "fdbmonitor --conffile /var/dynamic-conf/fdbmonitor.conf" +
" --lockfile /var/dynamic-conf/fdbmonitor.lockfile" +
" --loggroup " + logGroup +
" >> /var/log/fdb-trace-logs/fdbmonitor-$(date '+%Y-%m-%d').log 2>&1"
for _, crashObjs := range cluster.Spec.Buggify.CrashLoopContainers {
for _, pid := range crashObjs.Targets {
if (pid == processGroup.ProcessGroupID || pid == "*") && crashObjs.ContainerName == mainContainer.Name {
args = "crash-loop"
break
}
}
}
mainContainer.Args = []string{args}
mainContainer.VolumeMounts = append(mainContainer.VolumeMounts,
corev1.VolumeMount{Name: "data", MountPath: "/var/fdb/data"},
corev1.VolumeMount{Name: "dynamic-conf", MountPath: "/var/dynamic-conf"},
corev1.VolumeMount{Name: "fdb-trace-logs", MountPath: "/var/log/fdb-trace-logs"},
)
err = configureSidecarContainerForCluster(cluster, podName, initContainer, true, processGroup.ProcessGroupID, desiredVersion)
if err != nil {
return nil, err
}
err = configureSidecarContainerForCluster(cluster, podName, sidecarContainer, false, processGroup.ProcessGroupID, desiredVersion)
if err != nil {
return nil, err
}
serversPerPod := cluster.GetDesiredServersPerPod(processGroup.ProcessClass)
if serversPerPod > 1 {
sidecarContainer.Env = append(sidecarContainer.Env, corev1.EnvVar{Name: processGroup.ProcessClass.GetServersPerPodEnvName(), Value: strconv.Itoa(serversPerPod)})
}
}
ensureSecurityContextIsPresent(mainContainer)
ensureSecurityContextIsPresent(sidecarContainer)
setAffinityForFaultDomain(cluster, podSpec, processGroup.ProcessClass)
configureVolumesForContainers(cluster, podSpec, processSettings.VolumeClaimTemplate, podName, processGroup.ProcessClass)
configureNoSchedule(podSpec, processGroup.ProcessGroupID, cluster.Spec.Buggify.NoSchedule)
if !useUnifiedImages {
replaceContainers(podSpec.InitContainers, initContainer)
}
replaceContainers(podSpec.Containers, mainContainer, sidecarContainer)
headlessService := GetHeadlessService(cluster)
if headlessService != nil {
podSpec.Hostname = podName
podSpec.Subdomain = headlessService.Name
}
return podSpec, nil
}
// configureSidecarContainerForCluster sets up a sidecar container for a sidecar
// in the FDB cluster.
func configureSidecarContainerForCluster(cluster *fdbv1beta2.FoundationDBCluster, podName string, container *corev1.Container, initMode bool, processGroupID fdbv1beta2.ProcessGroupID, fdbVersion string) error {
return configureSidecarContainer(container, initMode, processGroupID, podName, fdbVersion, cluster, cluster.Spec.SidecarContainer.ImageConfigs, false)
}
// configureSidecarContainerForBackup sets up a sidecar container for the init
// container for a backup process.
func configureSidecarContainerForBackup(backup *fdbv1beta2.FoundationDBBackup, container *corev1.Container) error {
imageConfigs := backup.Spec.SidecarContainer.ImageConfigs
if backup.UseUnifiedImage() {
imageConfigs = backup.Spec.MainContainer.ImageConfigs
}
return configureSidecarContainer(container, true, "", "", backup.Spec.Version, nil, imageConfigs, pointer.BoolDeref(backup.Spec.AllowTagOverride, false))
}
// configureSidecarContainer sets up a foundationdb-kubernetes-sidecar container.
func configureSidecarContainer(container *corev1.Container, initMode bool, processGroupID fdbv1beta2.ProcessGroupID, podName string, versionString string, optionalCluster *fdbv1beta2.FoundationDBCluster, imageConfigs []fdbv1beta2.ImageConfig, allowTagOverride bool) error {
sidecarEnv := make([]corev1.EnvVar, 0, 4)
hasTrustedCAs := optionalCluster != nil && len(optionalCluster.Spec.TrustedCAs) > 0
var sidecarArgs []string
sidecarArgs = []string{
"--copy-file", "fdb.cluster",
}
if hasTrustedCAs {
sidecarArgs = append(sidecarArgs, "--copy-file", "ca.pem")
}
if optionalCluster != nil {
sidecarArgs = append(sidecarArgs,
"--input-monitor-conf", "fdbmonitor.conf",
"--copy-binary", "fdbserver",
"--copy-binary", "fdbcli",
"--main-container-version", versionString,
)
}
if optionalCluster == nil {
sidecarArgs = append(sidecarArgs, "--require-not-empty")
sidecarArgs = append(sidecarArgs, "fdb.cluster")
}
if optionalCluster != nil {
cluster := optionalCluster
if cluster.Spec.Routing.PodIPFamily != nil {
sidecarArgs = append(sidecarArgs, "--public-ip-family")
sidecarArgs = append(sidecarArgs, fmt.Sprint(*cluster.Spec.Routing.PodIPFamily))
if *cluster.Spec.Routing.PodIPFamily == 6 {
// this is required to configure the Pods to listen for any incoming connection
// from any available IPv6 address on port 8080
sidecarArgs = append(sidecarArgs, "--bind-address", "[::]:8080")
}
}
if cluster.NeedsExplicitListenAddress() {
sidecarArgs = append(sidecarArgs, "--substitute-variable", "FDB_POD_IP")
}
for _, substitution := range cluster.Spec.SidecarVariables {
sidecarArgs = append(sidecarArgs, "--substitute-variable", substitution)
}
sidecarEnv = append(sidecarEnv, getEnvForMonitorConfigSubstitution(cluster, processGroupID)...)
if cluster.DefineDNSLocalityFields() {
sidecarArgs = append(sidecarArgs, "--substitute-variable", "FDB_DNS_NAME")
sidecarEnv = append(sidecarEnv, corev1.EnvVar{Name: "FDB_DNS_NAME", Value: GetPodDNSName(cluster, podName)})
}
if !initMode {
if cluster.GetSidecarContainerEnableLivenessProbe() && container.LivenessProbe == nil {
// We can't use a HTTP handler here since the server
// requires a client certificate
container.LivenessProbe = &corev1.Probe{
ProbeHandler: corev1.ProbeHandler{
TCPSocket: &corev1.TCPSocketAction{
Port: intstr.IntOrString{IntVal: 8080},
},
},
TimeoutSeconds: 1,
PeriodSeconds: 30,
FailureThreshold: 5,
}
}
if cluster.GetSidecarContainerEnableReadinessProbe() && container.ReadinessProbe == nil {
container.ReadinessProbe = &corev1.Probe{
ProbeHandler: corev1.ProbeHandler{
TCPSocket: &corev1.TCPSocketAction{
Port: intstr.IntOrString{IntVal: 8080},
},
},
}
}
}
}
if initMode {
sidecarArgs = append(sidecarArgs, "--init-mode")
}
extendEnv(container, sidecarEnv...)
var overrides fdbv1beta2.ContainerOverrides
if optionalCluster != nil {
overrides = optionalCluster.Spec.SidecarContainer
}
if len(imageConfigs) > 0 {
overrides.ImageConfigs = imageConfigs
} else {
overrides.ImageConfigs = []fdbv1beta2.ImageConfig{{BaseImage: "foundationdb/foundationdb-kubernetes-sidecar", TagSuffix: "-1"}}
}
if overrides.EnableTLS && !initMode {
sidecarArgs = append(sidecarArgs, "--tls")
}
if optionalCluster != nil {
for _, crashObjs := range optionalCluster.Spec.Buggify.CrashLoopContainers {
for _, pid := range crashObjs.Targets {
if (pid == "*" || pid == processGroupID) && crashObjs.ContainerName == container.Name {
sidecarArgs = []string{"crash-loop"}
}
}
}
}
if len(sidecarArgs) > 0 {
container.Args = sidecarArgs
}
container.VolumeMounts = append(container.VolumeMounts,
corev1.VolumeMount{Name: "config-map", MountPath: "/var/input-files"},
corev1.VolumeMount{Name: "dynamic-conf", MountPath: "/var/output-files"},
)
image, err := GetImage(container.Image, overrides.ImageConfigs, versionString, allowTagOverride)
if err != nil {
return err
}
container.Image = image
ensureSecurityContextIsPresent(container)
if initMode {
return nil
}
extendEnv(container, corev1.EnvVar{Name: "FDB_TLS_VERIFY_PEERS", Value: overrides.PeerVerificationRules})
if hasTrustedCAs {
extendEnv(container, corev1.EnvVar{Name: "FDB_TLS_CA_FILE", Value: "/var/input-files/ca.pem"})
}
return nil
}
// getEnvForMonitorConfigSubstitution provides the environment variables that
// are used for substituting variables into the monitor config.
func getEnvForMonitorConfigSubstitution(cluster *fdbv1beta2.FoundationDBCluster, processGroupID fdbv1beta2.ProcessGroupID) []corev1.EnvVar {
env := make([]corev1.EnvVar, 0)
publicIPSource := cluster.Spec.Routing.PublicIPSource
usePublicIPFromService := publicIPSource != nil && *publicIPSource == fdbv1beta2.PublicIPSourceService
var publicIPKey string
if usePublicIPFromService {
publicIPKey = fmt.Sprintf("metadata.annotations['%s']", fdbv1beta2.PublicIPAnnotation)
} else {
family := cluster.Spec.Routing.PodIPFamily
if family == nil {
publicIPKey = "status.podIP"
} else {
publicIPKey = "status.podIPs"
}
}
env = append(env, corev1.EnvVar{Name: "FDB_PUBLIC_IP", ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{FieldPath: publicIPKey},
}})
if cluster.NeedsExplicitListenAddress() {
podIPKey := ""
family := cluster.Spec.Routing.PodIPFamily
if family == nil {
podIPKey = "status.podIP"
} else {
podIPKey = "status.podIPs"
}
env = append(env, corev1.EnvVar{Name: "FDB_POD_IP", ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{FieldPath: podIPKey},
}})
}
faultDomainKey := cluster.Spec.FaultDomain.Key
if faultDomainKey == "" {
faultDomainKey = corev1.LabelHostname
}
faultDomainSource := cluster.Spec.FaultDomain.ValueFrom
if faultDomainSource == "" {
faultDomainSource = "spec.nodeName"
}
if faultDomainKey == fdbv1beta2.NoneFaultDomainKey {
env = append(env, corev1.EnvVar{Name: "FDB_MACHINE_ID", ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{FieldPath: "metadata.name"},
}})
env = append(env, corev1.EnvVar{Name: "FDB_ZONE_ID", ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{FieldPath: "metadata.name"},
}})
} else if faultDomainKey == "foundationdb.org/kubernetes-cluster" {
env = append(env, corev1.EnvVar{Name: "FDB_MACHINE_ID", ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{FieldPath: "spec.nodeName"},
}})
env = append(env, corev1.EnvVar{Name: "FDB_ZONE_ID", Value: cluster.Spec.FaultDomain.Value})
} else {
env = append(env, corev1.EnvVar{Name: "FDB_MACHINE_ID", ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{FieldPath: "spec.nodeName"},
}})
if !strings.HasPrefix(faultDomainSource, "$") {
env = append(env, corev1.EnvVar{Name: "FDB_ZONE_ID", ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{FieldPath: faultDomainSource},
}})
}
}
env = append(env, corev1.EnvVar{Name: "FDB_INSTANCE_ID", Value: string(processGroupID)})
return env
}
// GetPvc builds a persistent volume claim for a FoundationDB process group.
func GetPvc(cluster *fdbv1beta2.FoundationDBCluster, processGroup *fdbv1beta2.ProcessGroupStatus) (*corev1.PersistentVolumeClaim, error) {
if !processGroup.ProcessClass.IsStateful() {
return nil, nil
}
processSettings := cluster.GetProcessSettings(processGroup.ProcessClass)
var pvc *corev1.PersistentVolumeClaim
if processSettings.VolumeClaimTemplate != nil {
pvc = processSettings.VolumeClaimTemplate.DeepCopy()
} else {
pvc = &corev1.PersistentVolumeClaim{}
}
pvc.ObjectMeta = GetPvcMetadata(cluster, processGroup.ProcessClass, processGroup.ProcessGroupID)
name := processGroup.GetPodName(cluster)
if pvc.ObjectMeta.Name == "" {
pvc.ObjectMeta.Name = fmt.Sprintf("%s-data", name)
} else {
pvc.ObjectMeta.Name = fmt.Sprintf("%s-%s", name, pvc.ObjectMeta.Name)
}
if pvc.Spec.AccessModes == nil {
pvc.Spec.AccessModes = []corev1.PersistentVolumeAccessMode{corev1.ReadWriteOnce}
}
if pvc.Spec.Resources.Requests == nil {
pvc.Spec.Resources.Requests = corev1.ResourceList{}
}
storage := pvc.Spec.Resources.Requests[corev1.ResourceStorage]
if (&storage).IsZero() {
pvc.Spec.Resources.Requests[corev1.ResourceStorage] = resource.MustParse("128G")
}
specHash, err := GetJSONHash(pvc.Spec)
if err != nil {
return nil, err
}
if pvc.ObjectMeta.Annotations == nil {
pvc.ObjectMeta.Annotations = make(map[string]string, 1)
}
pvc.ObjectMeta.Annotations[fdbv1beta2.LastSpecKey] = specHash
return pvc, nil
}
// replaceContainers overwrites the containers in a list with new containers
// that have the same name.
func replaceContainers(containers []corev1.Container, newContainers ...*corev1.Container) {
for index, container := range containers {
for _, newContainer := range newContainers {
if container.Name == newContainer.Name {
containers[index] = *newContainer
}
}
}
}
// extendEnv adds environment variables to an existing environment, unless
// environment variables with the same name are already present.
func extendEnv(container *corev1.Container, env ...corev1.EnvVar) {
existingVars := make(map[string]bool, len(container.Env))
for _, envVar := range container.Env {
existingVars[envVar.Name] = true
}
for _, envVar := range env {
if !existingVars[envVar.Name] {
container.Env = append(container.Env, envVar)
}
}
}
// GetBackupDeploymentName returns the name for the associated deployment for the FoundationDBBackup.
func GetBackupDeploymentName(backup *fdbv1beta2.FoundationDBBackup) string {
return fmt.Sprintf("%s-backup-agents", backup.ObjectMeta.Name)
}
// GetBackupDeployment builds a deployment for backup agents for a cluster.
func GetBackupDeployment(backup *fdbv1beta2.FoundationDBBackup) (*appsv1.Deployment, error) {
agentCount := int32(backup.GetDesiredAgentCount())
if agentCount == 0 {
return nil, nil
}
deployment := &appsv1.Deployment{
ObjectMeta: metav1.ObjectMeta{
Namespace: backup.ObjectMeta.Namespace,
Name: GetBackupDeploymentName(backup),
Annotations: map[string]string{},
Labels: map[string]string{},
},
}
deployment.Spec.Replicas = &agentCount
deployment.ObjectMeta.OwnerReferences = BuildOwnerReference(backup.TypeMeta, backup.ObjectMeta)
if backup.Spec.BackupDeploymentMetadata != nil {
for key, value := range backup.Spec.BackupDeploymentMetadata.Labels {
deployment.ObjectMeta.Labels[key] = value
}
for key, value := range backup.Spec.BackupDeploymentMetadata.Annotations {
deployment.ObjectMeta.Annotations[key] = value
}
}
deployment.ObjectMeta.Labels[fdbv1beta2.BackupDeploymentLabel] = string(backup.ObjectMeta.UID)
var podTemplate *corev1.PodTemplateSpec
if backup.Spec.PodTemplateSpec != nil {
podTemplate = backup.Spec.PodTemplateSpec.DeepCopy()
} else {
podTemplate = &corev1.PodTemplateSpec{}
}
var mainContainer *corev1.Container
var initContainer *corev1.Container
for index, container := range podTemplate.Spec.Containers {
if container.Name == fdbv1beta2.MainContainerName {
mainContainer = &podTemplate.Spec.Containers[index]
}
}
for index, container := range podTemplate.Spec.InitContainers {
if container.Name == fdbv1beta2.InitContainerName {
initContainer = &podTemplate.Spec.InitContainers[index]
}
}
if mainContainer == nil {
containers := []corev1.Container{
{
Name: fdbv1beta2.MainContainerName,
},
}
containers = append(containers, podTemplate.Spec.Containers...)
mainContainer = &containers[0]
podTemplate.Spec.Containers = containers
}
if len(backup.Spec.MainContainer.ImageConfigs) == 0 {
if backup.UseUnifiedImage() {
backup.Spec.MainContainer.ImageConfigs = []fdbv1beta2.ImageConfig{
{
BaseImage: "foundationdb/foundationdb-kubernetes",
},
}
} else {
backup.Spec.MainContainer.ImageConfigs = []fdbv1beta2.ImageConfig{
{
BaseImage: "foundationdb/foundationdb",
},
}
}
}
if len(backup.Spec.SidecarContainer.ImageConfigs) == 0 {
if !backup.UseUnifiedImage() {
backup.Spec.SidecarContainer.ImageConfigs = []fdbv1beta2.ImageConfig{
{
BaseImage: "foundationdb/foundationdb-kubernetes-sidecar",
TagSuffix: "-1",
},
}
}
}
image, err := GetImage(mainContainer.Image, backup.Spec.MainContainer.ImageConfigs, backup.Spec.Version, pointer.BoolDeref(backup.Spec.AllowTagOverride, false))
if err != nil {
return nil, err
}
// Right now the main container only starts the backup agent without doing anything special.
mainContainer.Image = image
mainContainer.Command = []string{"backup_agent"}
args := []string{"--log", "--logdir", "/var/log/fdb-trace-logs"}
if len(backup.Spec.CustomParameters) > 0 {
err := backup.Spec.CustomParameters.ValidateCustomParameters()
if err != nil {
return nil, err
}
for _, customParameter := range backup.Spec.CustomParameters {
args = append(args, fmt.Sprintf("--%s", customParameter))
}
}
mainContainer.Args = args
if mainContainer.Env == nil {
mainContainer.Env = make([]corev1.EnvVar, 0, 1)
}
extendEnv(mainContainer, corev1.EnvVar{Name: "FDB_CLUSTER_FILE", Value: "/var/dynamic-conf/fdb.cluster"})
mainContainer.VolumeMounts = append(mainContainer.VolumeMounts,
corev1.VolumeMount{Name: "logs", MountPath: "/var/log/fdb-trace-logs"},
corev1.VolumeMount{Name: "dynamic-conf", MountPath: "/var/dynamic-conf"},
)
if mainContainer.Resources.Requests == nil {
mainContainer.Resources.Requests = corev1.ResourceList{
"cpu": resource.MustParse("1"),
"memory": resource.MustParse("1Gi"),
}
}
if mainContainer.Resources.Limits == nil {
mainContainer.Resources.Limits = mainContainer.Resources.Requests
}
if initContainer == nil {
podTemplate.Spec.InitContainers = append(podTemplate.Spec.InitContainers, corev1.Container{Name: fdbv1beta2.InitContainerName})
initContainer = &podTemplate.Spec.InitContainers[0]
}
err = configureSidecarContainerForBackup(backup, initContainer)
if err != nil {
return nil, err
}
if podTemplate.ObjectMeta.Labels == nil {
podTemplate.ObjectMeta.Labels = make(map[string]string, 1)
}
podTemplate.ObjectMeta.Labels[fdbv1beta2.BackupDeploymentPodLabel] = deployment.ObjectMeta.Name
deployment.Spec.Selector = &metav1.LabelSelector{MatchLabels: map[string]string{
fdbv1beta2.BackupDeploymentPodLabel: deployment.ObjectMeta.Name,
}}
podTemplate.Spec.Volumes = append(podTemplate.Spec.Volumes,
corev1.Volume{
Name: "logs",
VolumeSource: corev1.VolumeSource{
EmptyDir: &corev1.EmptyDirVolumeSource{},
},
},
corev1.Volume{
Name: "dynamic-conf",
VolumeSource: corev1.VolumeSource{
EmptyDir: &corev1.EmptyDirVolumeSource{},
},
},
corev1.Volume{
Name: "config-map",
VolumeSource: corev1.VolumeSource{ConfigMap: &corev1.ConfigMapVolumeSource{
LocalObjectReference: corev1.LocalObjectReference{
Name: fmt.Sprintf("%s-config", backup.Spec.ClusterName),
},
Items: []corev1.KeyToPath{
{Key: ClusterFileKey, Path: "fdb.cluster"},
},
}},
},
)
deployment.Spec.Template = *podTemplate
specHash, err := GetJSONHash(deployment.Spec)
if err != nil {
return nil, err
}
deployment.ObjectMeta.Annotations[fdbv1beta2.LastSpecKey] = specHash
return deployment, nil
}
// GetServersPerPodForPod returns the count of servers per Pod based on the processClass from the sidecar or 1
func GetServersPerPodForPod(pod *corev1.Pod, pClass fdbv1beta2.ProcessClass) (int, error) {
// If not specified we will default to 1
serversPerPod := 1
if pod == nil {