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minio-statefulset.go
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minio-statefulset.go
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// Copyright (C) 2020, MinIO, Inc.
//
// This code is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License, version 3,
// as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License, version 3,
// along with this program. If not, see <http://www.gnu.org/licenses/>
package statefulsets
import (
"fmt"
"path/filepath"
"sort"
"strconv"
"k8s.io/apimachinery/pkg/util/intstr"
miniov2 "github.com/minio/operator/pkg/apis/minio.min.io/v2"
"github.com/minio/operator/pkg/certs"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime/schema"
)
// Returns the MinIO environment variables set in configuration.
// If a user specifies a secret in the spec (for MinIO credentials) we use
// that to set MINIO_ROOT_USER & MINIO_ROOT_PASSWORD.
func minioEnvironmentVars(t *miniov2.Tenant, skipEnvVars map[string][]byte) []corev1.EnvVar {
var envVars []corev1.EnvVar
envVarsMap := map[string]corev1.EnvVar{}
envVarsMap["MINIO_CONFIG_ENV_FILE"] = corev1.EnvVar{
Name: "MINIO_CONFIG_ENV_FILE",
Value: miniov2.CfgFile,
}
// transform map to array and skip configurations from config.env
for _, env := range envVarsMap {
if _, ok := skipEnvVars[env.Name]; !ok {
envVars = append(envVars, env)
}
}
// sort the array to produce the same result everytime
sort.Slice(envVars, func(i, j int) bool {
return envVars[i].Name < envVars[j].Name
})
// Return environment variables
return envVars
}
// PodMetadata Returns the MinIO pods metadata set in configuration.
// If a user specifies metadata in the spec we return that metadata.
func PodMetadata(t *miniov2.Tenant, pool *miniov2.Pool) metav1.ObjectMeta {
meta := metav1.ObjectMeta{}
// Copy Labels and Annotations from Tenant
labels := t.ObjectMeta.Labels
annotations := t.ObjectMeta.Annotations
if annotations == nil {
annotations = make(map[string]string)
}
annotations[miniov2.Revision] = fmt.Sprintf("%d", t.Status.Revision)
if labels == nil {
labels = make(map[string]string)
}
// Add the additional label used by StatefulSet spec selector
for k, v := range t.MinIOPodLabels() {
labels[k] = v
}
// Add information labels, such as which pool we are building this pod about
labels[miniov2.PoolLabel] = pool.Name
// Add the additional label used by Console spec selector
for k, v := range t.ConsolePodLabels() {
labels[k] = v
}
// Add user specific annotations
if pool.Annotations != nil {
annotations = miniov2.MergeMaps(annotations, pool.Annotations)
}
if pool.Labels != nil {
labels = miniov2.MergeMaps(labels, pool.Labels)
}
meta.Labels = labels
meta.Annotations = annotations
return meta
}
// ContainerMatchLabels Returns the labels that match the Pods in the statefulset
func ContainerMatchLabels(t *miniov2.Tenant, pool *miniov2.Pool) *metav1.LabelSelector {
labels := miniov2.MergeMaps(t.MinIOPodLabels(), t.ConsolePodLabels())
// Add pool information so it's passed down to the underlying PVCs
labels[miniov2.PoolLabel] = pool.Name
return &metav1.LabelSelector{
MatchLabels: labels,
}
}
// CfgVolumeMount is the volume mount used by `minio`, `sidecar` and `validate-arguments` containers
var CfgVolumeMount = corev1.VolumeMount{
Name: CfgVol,
MountPath: miniov2.CfgPath,
}
// TmpCfgVolumeMount is the temporary location
var TmpCfgVolumeMount = corev1.VolumeMount{
Name: "configuration",
MountPath: miniov2.TmpPath + "/minio-config",
}
// Builds the volume mounts for MinIO container.
func volumeMounts(t *miniov2.Tenant, pool *miniov2.Pool, certVolumeSources []corev1.VolumeProjection) (mounts []corev1.VolumeMount) {
// Default volume name, unless another one was provided
name := miniov2.MinIOVolumeName
if pool.VolumeClaimTemplate != nil {
name = pool.VolumeClaimTemplate.Name
}
// shared configuration Volume
mounts = append(mounts, CfgVolumeMount)
if pool.VolumesPerServer == 1 {
mounts = append(mounts, corev1.VolumeMount{
Name: name + strconv.Itoa(0),
MountPath: t.Spec.Mountpath,
})
} else {
for i := 0; i < int(pool.VolumesPerServer); i++ {
mounts = append(mounts, corev1.VolumeMount{
Name: name + strconv.Itoa(i),
MountPath: t.Spec.Mountpath + strconv.Itoa(i),
})
}
}
// CertPath (/tmp/certs) will always be mounted even if the tenant doesn't have any TLS certificate
// operator will still mount the operator public cert under /tmp/certs/CAs/operator.crt
if len(certVolumeSources) > 0 {
mounts = append(mounts, corev1.VolumeMount{
Name: t.MinIOTLSSecretName(),
MountPath: miniov2.MinIOCertPath,
})
}
return mounts
}
// Builds the MinIO container for a Tenant.
func poolMinioServerContainer(t *miniov2.Tenant, skipEnvVars map[string][]byte, pool *miniov2.Pool, certVolumeSources []corev1.VolumeProjection) corev1.Container {
consolePort := miniov2.ConsolePort
if t.TLS() {
consolePort = miniov2.ConsoleTLSPort
}
args := []string{
"server",
"--certs-dir", miniov2.MinIOCertPath,
"--console-address", ":" + strconv.Itoa(consolePort),
}
containerPorts := []corev1.ContainerPort{
{
ContainerPort: miniov2.MinIOPort,
},
{
ContainerPort: int32(consolePort),
},
}
if t.Spec.Features != nil && t.Spec.Features.EnableSFTP != nil && *t.Spec.Features.EnableSFTP {
pkFile := filepath.Join(miniov2.MinIOCertPath, certs.PrivateKeyFile)
args = append(args, []string{
"--sftp", fmt.Sprintf("address=:%d", miniov2.MinIOSFTPPort),
"--sftp", "ssh-private-key=" + pkFile,
}...)
containerPorts = append(containerPorts, corev1.ContainerPort{
ContainerPort: miniov2.MinIOSFTPPort,
})
}
if t.Spec.Logging != nil {
// If logging is specified, expect users to
// provide the right set of settings to toggle
// various flags.
if t.Spec.Logging.JSON {
args = append(args, "--json")
}
if t.Spec.Logging.Anonymous {
args = append(args, "--anonymous")
}
if t.Spec.Logging.Quiet {
args = append(args, "--quiet")
}
}
return corev1.Container{
Name: miniov2.MinIOServerName,
Image: t.Spec.Image,
Ports: containerPorts,
ImagePullPolicy: t.Spec.ImagePullPolicy,
VolumeMounts: volumeMounts(t, pool, certVolumeSources),
Args: args,
Env: minioEnvironmentVars(t, skipEnvVars),
Resources: pool.Resources,
LivenessProbe: t.Spec.Liveness,
ReadinessProbe: t.Spec.Readiness,
StartupProbe: t.Spec.Startup,
Lifecycle: t.Spec.Lifecycle,
SecurityContext: poolContainerSecurityContext(pool),
}
}
// GetContainerArgs returns the arguments that the MinIO container receives
func GetContainerArgs(t *miniov2.Tenant, hostsTemplate string) []string {
var args []string
if len(t.Spec.Pools) == 1 && t.Spec.Pools[0].Servers == 1 {
// to run in standalone mode we must pass the path
args = append(args, t.VolumePathForPool(&t.Spec.Pools[0]))
} else {
for index, endpoint := range t.MinIOEndpoints(hostsTemplate) {
args = append(args, fmt.Sprintf("%s%s", endpoint, t.VolumePathForPool(&t.Spec.Pools[index])))
}
}
return args
}
// Builds the tolerations for a Pool.
func poolTolerations(z *miniov2.Pool) []corev1.Toleration {
var tolerations []corev1.Toleration
return append(tolerations, z.Tolerations...)
}
// Builds the topology spread constraints for a Pool.
func poolTopologySpreadConstraints(z *miniov2.Pool) []corev1.TopologySpreadConstraint {
var constraints []corev1.TopologySpreadConstraint
return append(constraints, z.TopologySpreadConstraints...)
}
// Builds the security context for a Pool
func poolSecurityContext(pool *miniov2.Pool, status *miniov2.PoolStatus) *corev1.PodSecurityContext {
runAsNonRoot := true
var runAsUser int64 = 1000
var runAsGroup int64 = 1000
var fsGroup int64 = 1000
fsGroupChangePolicy := corev1.FSGroupChangeOnRootMismatch
securityContext := corev1.PodSecurityContext{
RunAsNonRoot: &runAsNonRoot,
RunAsUser: &runAsUser,
RunAsGroup: &runAsGroup,
FSGroup: &fsGroup,
FSGroupChangePolicy: &fsGroupChangePolicy,
}
if pool != nil && pool.SecurityContext != nil {
securityContext = *pool.SecurityContext
// if the pool has no security context, and it's market as legacy security context return nil
} else if status.LegacySecurityContext {
return nil
}
// Prevents high CPU usage of kubelet by preventing chown on the entire CSI
if securityContext.FSGroupChangePolicy == nil {
fsGroupChangePolicy := corev1.FSGroupChangeOnRootMismatch
securityContext.FSGroupChangePolicy = &fsGroupChangePolicy
}
return &securityContext
}
// Builds the security context for containers in a Pool
func poolContainerSecurityContext(pool *miniov2.Pool) *corev1.SecurityContext {
// By default, we are opinionated and set the following values to request
// kubernetes to run our pods as a non-root user intentionally, we don't need to be root
// if the user needs a special security context, it should be specified on the pool's
// securityContext
runAsNonRoot := true
var runAsUser int64 = 1000
var runAsGroup int64 = 1000
if pool != nil && pool.SecurityContext != nil {
if pool.SecurityContext.RunAsNonRoot != nil {
runAsNonRoot = *pool.SecurityContext.RunAsNonRoot
}
if pool.SecurityContext.RunAsUser != nil {
runAsUser = *pool.SecurityContext.RunAsUser
}
if pool.SecurityContext.RunAsGroup != nil {
runAsGroup = *pool.SecurityContext.RunAsGroup
}
}
containerSecurityContext := corev1.SecurityContext{
RunAsNonRoot: &runAsNonRoot,
RunAsUser: &runAsUser,
RunAsGroup: &runAsGroup,
}
// Values from pool.ContainerSecurityContext if provided
if pool.ContainerSecurityContext != nil {
containerSecurityContext = *pool.ContainerSecurityContext
}
return &containerSecurityContext
}
// CfgVol is the name of the configuration volume we will use
const CfgVol = "cfg-vol"
// NewPoolArgs arguments used to create a new pool
type NewPoolArgs struct {
Tenant *miniov2.Tenant
SkipEnvVars map[string][]byte
Pool *miniov2.Pool
PoolStatus *miniov2.PoolStatus
ServiceName string
HostsTemplate string
OperatorVersion string
}
// NewPool creates a new StatefulSet for the given Cluster.
func NewPool(args *NewPoolArgs) *appsv1.StatefulSet {
t := args.Tenant.DeepCopy()
skipEnvVars := args.SkipEnvVars
pool := args.Pool
poolStatus := args.PoolStatus
serviceName := args.ServiceName
var podVolumes []corev1.Volume
replicas := pool.Servers
var certVolumeSources []corev1.VolumeProjection
var clientCertSecret string
clientCertPaths := []corev1.KeyToPath{
{Key: certs.PublicCertFile, Path: "client.crt"},
{Key: certs.PrivateKeyFile, Path: "client.key"},
}
var kesCertSecret string
KESCertPath := []corev1.KeyToPath{
{Key: certs.PublicCertFile, Path: "CAs/kes.crt"},
}
// Create an empty dir volume to share the configuration between the main container and side-car
podVolumes = append(podVolumes, corev1.Volume{
Name: CfgVol,
VolumeSource: corev1.VolumeSource{
EmptyDir: &corev1.EmptyDirVolumeSource{},
},
})
// Multiple certificates will be mounted using the following folder structure:
//
// certs
// + public.crt
// + private.key
// |
// + hostname-0
// | + public.crt
// | + private.key
// + hostname-1
// | + public.crt
// | + private.key
// + hostname-2
// | + public.crt
// | + private.key
// + CAs
// + hostname-0.crt
// + hostname-1.crt
// + hostname-2.crt
// + public.crt
//
// Iterate over all provided TLS certificates and store them on the list of Volumes that will be mounted to the Pod
for index, secret := range t.Spec.ExternalCertSecret {
crtMountPath := fmt.Sprintf("hostname-%d/%s", index, certs.PublicCertFile)
keyMountPath := fmt.Sprintf("hostname-%d/%s", index, certs.PrivateKeyFile)
caMountPath := fmt.Sprintf("CAs/hostname-%d.crt", index)
// MinIO requires to have at least 1 certificate keyPair under the `certs` folder, by default
// we will take the first secret as the default certificate
//
// certs
// + public.crt
// + private.key
if index == 0 {
crtMountPath = certs.PublicCertFile
keyMountPath = certs.PrivateKeyFile
caMountPath = fmt.Sprintf("%s/%s", certs.CertsCADir, certs.PublicCertFile)
}
var serverCertPaths []corev1.KeyToPath
if secret.Type == "kubernetes.io/tls" {
serverCertPaths = []corev1.KeyToPath{
{Key: certs.TLSCertFile, Path: crtMountPath},
{Key: certs.TLSKeyFile, Path: keyMountPath},
{Key: certs.TLSCertFile, Path: caMountPath},
}
} else if secret.Type == "cert-manager.io/v1alpha2" || secret.Type == "cert-manager.io/v1" {
serverCertPaths = []corev1.KeyToPath{
{Key: certs.TLSCertFile, Path: crtMountPath},
{Key: certs.TLSKeyFile, Path: keyMountPath},
{Key: certs.CAPublicCertFile, Path: caMountPath},
}
} else {
serverCertPaths = []corev1.KeyToPath{
{Key: certs.PublicCertFile, Path: crtMountPath},
{Key: certs.PrivateKeyFile, Path: keyMountPath},
{Key: certs.PublicCertFile, Path: caMountPath},
}
}
certVolumeSources = append(certVolumeSources, corev1.VolumeProjection{
Secret: &corev1.SecretProjection{
LocalObjectReference: corev1.LocalObjectReference{
Name: secret.Name,
},
Items: serverCertPaths,
},
})
}
// AutoCert certificates will be used for internal communication if requested
if t.AutoCert() {
crtMountPath := certs.PublicCertFile
keyMountPath := certs.PrivateKeyFile
caMountPath := fmt.Sprintf("%s/%s", certs.CertsCADir, certs.PublicCertFile)
if len(t.Spec.ExternalCertSecret) > 0 {
index := len(t.Spec.ExternalCertSecret)
crtMountPath = fmt.Sprintf("hostname-%d/%s", index, certs.PublicCertFile)
keyMountPath = fmt.Sprintf("hostname-%d/%s", index, certs.PrivateKeyFile)
caMountPath = fmt.Sprintf("CAs/hostname-%d.crt", index)
}
certVolumeSources = append(certVolumeSources, corev1.VolumeProjection{
Secret: &corev1.SecretProjection{
LocalObjectReference: corev1.LocalObjectReference{
Name: t.MinIOTLSSecretName(),
},
Items: []corev1.KeyToPath{
{Key: certs.PublicCertFile, Path: crtMountPath},
{Key: certs.PrivateKeyFile, Path: keyMountPath},
{Key: certs.PublicCertFile, Path: caMountPath},
},
},
})
}
// Multiple client certificates will be mounted using the following folder structure:
//
// certs
// |
// + client-0
// | + client.crt
// | + client.key
// + client-1
// | + client.crt
// | + client.key
// + client-2
// | + client.crt
// | + client.key
//
// Iterate over all provided client TLS certificates and store them on the list of Volumes that will be mounted to the Pod
for index, secret := range t.Spec.ExternalClientCertSecrets {
crtMountPath := fmt.Sprintf("client-%d/client.crt", index)
keyMountPath := fmt.Sprintf("client-%d/client.key", index)
var clientKeyPairPaths []corev1.KeyToPath
if secret.Type == "kubernetes.io/tls" {
clientKeyPairPaths = []corev1.KeyToPath{
{Key: certs.TLSCertFile, Path: crtMountPath},
{Key: certs.TLSKeyFile, Path: keyMountPath},
}
} else if secret.Type == "cert-manager.io/v1alpha2" || secret.Type == "cert-manager.io/v1" {
clientKeyPairPaths = []corev1.KeyToPath{
{Key: certs.TLSCertFile, Path: crtMountPath},
{Key: certs.TLSKeyFile, Path: keyMountPath},
{Key: certs.CAPublicCertFile, Path: fmt.Sprintf("%s/client-ca-%d.crt", certs.CertsCADir, index)},
}
} else {
clientKeyPairPaths = []corev1.KeyToPath{
{Key: certs.PublicCertFile, Path: crtMountPath},
{Key: certs.PrivateKeyFile, Path: keyMountPath},
}
}
certVolumeSources = append(certVolumeSources, corev1.VolumeProjection{
Secret: &corev1.SecretProjection{
LocalObjectReference: corev1.LocalObjectReference{
Name: secret.Name,
},
Items: clientKeyPairPaths,
},
})
}
// Will mount into ~/.minio/certs/CAs folder the user provided CA certificates.
// This is used for MinIO to verify TLS connections with other applications.
// certs
// + CAs
// + ca-0.crt
// + ca-1.crt
// + ca-2.crt
for index, secret := range t.Spec.ExternalCaCertSecret {
var caCertPaths []corev1.KeyToPath
// This covers both secrets of type "kubernetes.io/tls" and
// "cert-manager.io/v1alpha2" because of same keys in both.
if secret.Type == "kubernetes.io/tls" {
caCertPaths = []corev1.KeyToPath{
{Key: certs.TLSCertFile, Path: fmt.Sprintf("%s/ca-%d.crt", certs.CertsCADir, index)},
}
} else if secret.Type == "cert-manager.io/v1alpha2" || secret.Type == "cert-manager.io/v1" {
caCertPaths = []corev1.KeyToPath{
{Key: certs.CAPublicCertFile, Path: fmt.Sprintf("%s/ca-%d.crt", certs.CertsCADir, index)},
}
} else {
caCertPaths = []corev1.KeyToPath{
{Key: certs.PublicCertFile, Path: fmt.Sprintf("%s/ca-%d.crt", certs.CertsCADir, index)},
}
}
certVolumeSources = append(certVolumeSources, corev1.VolumeProjection{
Secret: &corev1.SecretProjection{
LocalObjectReference: corev1.LocalObjectReference{
Name: secret.Name,
},
Items: caCertPaths,
},
})
}
// If KES is enable mount TLS certificate secrets
if t.HasKESEnabled() {
// External Client certificates will have priority over AutoCert generated certificates
if t.ExternalClientCert() {
clientCertSecret = t.Spec.ExternalClientCertSecret.Name
// This covers both secrets of type "kubernetes.io/tls" and
// "cert-manager.io/v1alpha2" / cert-manager.io/v1 because of same keys in both.
if t.Spec.ExternalClientCertSecret.Type == "kubernetes.io/tls" || t.Spec.ExternalClientCertSecret.Type == "cert-manager.io/v1alpha2" || t.Spec.KES.ExternalCertSecret.Type == "cert-manager.io/v1" {
clientCertPaths = []corev1.KeyToPath{
{Key: certs.TLSCertFile, Path: "client.crt"},
{Key: certs.TLSKeyFile, Path: "client.key"},
}
} else {
clientCertPaths = []corev1.KeyToPath{
{Key: certs.PublicCertFile, Path: "client.crt"},
{Key: certs.PrivateKeyFile, Path: "client.key"},
}
}
} else {
clientCertSecret = t.MinIOClientTLSSecretName()
}
// KES External certificates will have priority over AutoCert generated certificates
if t.KESExternalCert() {
kesCertSecret = t.Spec.KES.ExternalCertSecret.Name
// This covers both secrets of type "kubernetes.io/tls" and
// "cert-manager.io/v1alpha2" because of same keys in both.
if t.Spec.KES.ExternalCertSecret.Type == "kubernetes.io/tls" || t.Spec.KES.ExternalCertSecret.Type == "cert-manager.io/v1alpha2" || t.Spec.KES.ExternalCertSecret.Type == "cert-manager.io/v1" {
KESCertPath = []corev1.KeyToPath{
{Key: certs.TLSCertFile, Path: fmt.Sprintf("%s/kes.crt", certs.CertsCADir)},
}
}
} else {
kesCertSecret = t.KESTLSSecretName()
}
certVolumeSources = append(certVolumeSources, []corev1.VolumeProjection{
{
Secret: &corev1.SecretProjection{
LocalObjectReference: corev1.LocalObjectReference{
Name: clientCertSecret,
},
Items: clientCertPaths,
},
},
{
Secret: &corev1.SecretProjection{
LocalObjectReference: corev1.LocalObjectReference{
Name: kesCertSecret,
},
Items: KESCertPath,
},
},
}...)
}
if len(certVolumeSources) > 0 {
podVolumes = append(podVolumes, corev1.Volume{
Name: t.MinIOTLSSecretName(),
VolumeSource: corev1.VolumeSource{
Projected: &corev1.ProjectedVolumeSource{
Sources: certVolumeSources,
},
},
})
}
if t.HasConfigurationSecret() {
podVolumes = append(podVolumes, corev1.Volume{
Name: "configuration",
VolumeSource: corev1.VolumeSource{
Projected: &corev1.ProjectedVolumeSource{
Sources: []corev1.VolumeProjection{
{
Secret: &corev1.SecretProjection{
LocalObjectReference: corev1.LocalObjectReference{
Name: t.Spec.Configuration.Name,
},
},
},
},
},
},
})
}
ssMeta := metav1.ObjectMeta{
Namespace: t.Namespace,
Name: t.PoolStatefulsetName(pool),
OwnerReferences: []metav1.OwnerReference{
*metav1.NewControllerRef(t, schema.GroupVersionKind{
Group: miniov2.SchemeGroupVersion.Group,
Version: miniov2.SchemeGroupVersion.Version,
Kind: miniov2.MinIOCRDResourceKind,
}),
},
}
// Copy labels and annotations from the Tenant.Spec.Metadata
ssMeta.Labels = t.ObjectMeta.Labels
ssMeta.Annotations = t.ObjectMeta.Annotations
if ssMeta.Labels == nil {
ssMeta.Labels = make(map[string]string)
}
// Add information labels, such as which pool we are building this pod about
ssMeta.Labels[miniov2.PoolLabel] = pool.Name
ssMeta.Labels[miniov2.TenantLabel] = t.Name
// Add user specific annotations
if pool.Annotations != nil {
ssMeta.Annotations = miniov2.MergeMaps(ssMeta.Annotations, pool.Annotations)
}
if pool.Labels != nil {
ssMeta.Labels = miniov2.MergeMaps(ssMeta.Labels, pool.Labels)
}
containers := []corev1.Container{
poolMinioServerContainer(t, skipEnvVars, pool, certVolumeSources),
getSideCarContainer(t, pool),
}
// attach any sidecar containers and volumes
if t.Spec.SideCars != nil && len(t.Spec.SideCars.Containers) > 0 {
containers = append(containers, t.Spec.SideCars.Containers...)
podVolumes = append(podVolumes, t.Spec.SideCars.Volumes...)
}
initContainer := getInitContainer(t, pool)
ss := &appsv1.StatefulSet{
ObjectMeta: ssMeta,
Spec: appsv1.StatefulSetSpec{
PodManagementPolicy: t.Spec.PodManagementPolicy,
Selector: ContainerMatchLabels(t, pool),
ServiceName: serviceName,
Replicas: &replicas,
Template: corev1.PodTemplateSpec{
ObjectMeta: PodMetadata(t, pool),
Spec: corev1.PodSpec{
InitContainers: []corev1.Container{
initContainer,
},
Containers: containers,
Volumes: podVolumes,
RestartPolicy: corev1.RestartPolicyAlways,
Affinity: pool.Affinity,
NodeSelector: pool.NodeSelector,
SchedulerName: t.Scheduler.Name,
Tolerations: poolTolerations(pool),
TopologySpreadConstraints: poolTopologySpreadConstraints(pool),
SecurityContext: poolSecurityContext(pool, poolStatus),
ServiceAccountName: t.Spec.ServiceAccountName,
PriorityClassName: t.Spec.PriorityClassName,
},
},
},
}
// Address issue https://github.com/kubernetes/kubernetes/issues/85332
if t.Spec.ImagePullSecret.Name != "" {
ss.Spec.Template.Spec.ImagePullSecrets = []corev1.LocalObjectReference{t.Spec.ImagePullSecret}
}
if pool.VolumeClaimTemplate != nil {
pvClaim := *pool.VolumeClaimTemplate
name := pvClaim.Name
for i := 0; i < int(pool.VolumesPerServer); i++ {
pvClaim.Name = name + strconv.Itoa(i)
ss.Spec.VolumeClaimTemplates = append(ss.Spec.VolumeClaimTemplates, pvClaim)
}
}
// attach any sidecar containers and volumes
if t.Spec.SideCars != nil && len(t.Spec.SideCars.VolumeClaimTemplates) > 0 {
ss.Spec.VolumeClaimTemplates = append(ss.Spec.VolumeClaimTemplates, t.Spec.SideCars.VolumeClaimTemplates...)
}
// pass on RuntimeClassName
if pool.RuntimeClassName != nil && *pool.RuntimeClassName != "" {
ss.Spec.Template.Spec.RuntimeClassName = pool.RuntimeClassName
}
// add customs initContainers to StatefulSet
if len(t.Spec.InitContainers) != 0 {
ss.Spec.Template.Spec.InitContainers = append(ss.Spec.Template.Spec.InitContainers, t.Spec.InitContainers...)
}
// add customs VolumeMounts and Volumes.
if len(t.Spec.AdditionalVolumeMounts) != 0 && len(t.Spec.AdditionalVolumes) == len(t.Spec.AdditionalVolumeMounts) {
for i := range ss.Spec.Template.Spec.InitContainers {
ss.Spec.Template.Spec.InitContainers[i].VolumeMounts = append(ss.Spec.Template.Spec.InitContainers[i].VolumeMounts, t.Spec.AdditionalVolumeMounts...)
}
for i := range ss.Spec.Template.Spec.Containers {
ss.Spec.Template.Spec.Containers[i].VolumeMounts = append(ss.Spec.Template.Spec.Containers[i].VolumeMounts, t.Spec.AdditionalVolumeMounts...)
}
ss.Spec.Template.Spec.Volumes = append(ss.Spec.Template.Spec.Volumes, t.Spec.AdditionalVolumes...)
}
return ss
}
func getInitContainer(t *miniov2.Tenant, pool *miniov2.Pool) corev1.Container {
initContainer := corev1.Container{
Name: "validate-arguments",
Image: getSidecarImage(),
Args: []string{
"validate",
"--tenant",
t.Name,
},
Env: []corev1.EnvVar{
{
Name: "CLUSTER_DOMAIN",
Value: miniov2.GetClusterDomain(),
},
},
VolumeMounts: []corev1.VolumeMount{
CfgVolumeMount,
},
SecurityContext: poolContainerSecurityContext(pool),
}
// That's ok to use the sidecar's resource
if t.Spec.SideCars != nil && t.Spec.SideCars.Resources != nil {
initContainer.Resources = *t.Spec.SideCars.Resources
}
if t.HasConfigurationSecret() {
initContainer.VolumeMounts = append(initContainer.VolumeMounts, TmpCfgVolumeMount)
}
return initContainer
}
func getSideCarContainer(t *miniov2.Tenant, pool *miniov2.Pool) corev1.Container {
scheme := corev1.URISchemeHTTP
readinessProbe := &corev1.Probe{
ProbeHandler: corev1.ProbeHandler{
HTTPGet: &corev1.HTTPGetAction{
Path: "/ready",
Port: intstr.IntOrString{
IntVal: 4444,
},
// Host: "localhost",
Scheme: scheme,
HTTPHeaders: nil,
},
},
InitialDelaySeconds: 5,
PeriodSeconds: 1,
FailureThreshold: 1,
}
sidecarContainer := corev1.Container{
Name: "sidecar",
Image: getSidecarImage(),
Args: []string{
"sidecar",
"--tenant",
t.Name,
"--config-name",
t.Spec.Configuration.Name,
},
Env: []corev1.EnvVar{
{
Name: "CLUSTER_DOMAIN",
Value: miniov2.GetClusterDomain(),
},
},
VolumeMounts: []corev1.VolumeMount{
CfgVolumeMount,
},
SecurityContext: poolContainerSecurityContext(pool),
ReadinessProbe: readinessProbe,
}
if t.Spec.SideCars != nil && t.Spec.SideCars.Resources != nil {
sidecarContainer.Resources = *t.Spec.SideCars.Resources
}
if t.HasConfigurationSecret() {
sidecarContainer.VolumeMounts = append(sidecarContainer.VolumeMounts, TmpCfgVolumeMount)
}
return sidecarContainer
}