/
config.go
1134 lines (1013 loc) · 43.6 KB
/
config.go
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// Package eksconfig defines EKS test configuration.
package eksconfig
import (
"bytes"
"errors"
"fmt"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"regexp"
"runtime"
"strconv"
"strings"
"sync"
"text/template"
"time"
"github.com/aws/aws-k8s-tester/ec2config"
"github.com/aws/aws-k8s-tester/pkg/fileutil"
"github.com/aws/aws-k8s-tester/pkg/logutil"
"github.com/aws/aws-k8s-tester/pkg/randutil"
"github.com/aws/aws-k8s-tester/pkg/terminal"
"github.com/aws/aws-sdk-go/aws/endpoints"
"k8s.io/client-go/util/homedir"
"sigs.k8s.io/yaml" // must use "sigs.k8s.io/yaml"
)
// AWS_K8S_TESTER_EKS_PREFIX is the environment variable prefix used for "eksconfig".
const AWS_K8S_TESTER_EKS_PREFIX = "AWS_K8S_TESTER_EKS_"
// Config defines EKS configuration.
type Config struct {
mu *sync.RWMutex
// Name is the cluster name.
// If empty, deployer auto-populates it.
Name string `json:"name"`
// Partition is the AWS partition for EKS deployment region.
// If empty, set default partition "aws".
Partition string `json:"partition"`
// Region is the AWS geographic area for EKS deployment.
// If empty, set default region.
Region string `json:"region"`
// ConfigPath is the configuration file path.
// Deployer is expected to update this file with latest status.
ConfigPath string `json:"config-path,omitempty"`
// KubectlCommandsOutputPath is the output path for kubectl commands.
KubectlCommandsOutputPath string `json:"kubectl-commands-output-path,omitempty"`
// RemoteAccessCommandsOutputPath is the output path for ssh commands.
RemoteAccessCommandsOutputPath string `json:"remote-access-commands-output-path,omitempty"`
// LogColor is true to output logs in color.
LogColor bool `json:"log-color"`
// LogLevel configures log level. Only supports debug, info, warn, error, panic, or fatal. Default 'info'.
LogLevel string `json:"log-level"`
// LogOutputs is a list of log outputs. Valid values are 'default', 'stderr', 'stdout', or file names.
// Logs are appended to the existing file, if any.
// Multiple values are accepted. If empty, it sets to 'default', which outputs to stderr.
// See https://pkg.go.dev/go.uber.org/zap#Open and https://pkg.go.dev/go.uber.org/zap#Config for more details.
LogOutputs []string `json:"log-outputs,omitempty"`
// AWSCLIPath is the path for AWS CLI path.
AWSCLIPath string `json:"aws-cli-path,omitempty"`
// KubectlPath is the path to download the "kubectl".
KubectlPath string `json:"kubectl-path,omitempty"`
// KubectlDownloadURL is the download URL to download "kubectl" binary from.
KubectlDownloadURL string `json:"kubectl-download-url,omitempty"`
// KubeConfigPath is the file path of KUBECONFIG for the EKS cluster.
// If empty, auto-generate one.
// Deployer is expected to delete this on cluster tear down.
KubeConfigPath string `json:"kubeconfig-path,omitempty"`
// AWSIAMAuthenticatorPath is the path to aws-iam-authenticator.
AWSIAMAuthenticatorPath string `json:"aws-iam-authenticator-path,omitempty"`
// AWSIAMAuthenticatorDownloadURL is the download URL to download "aws-iam-authenticator" binary from.
AWSIAMAuthenticatorDownloadURL string `json:"aws-iam-authenticator-download-url,omitempty"`
// OnFailureDelete is true to delete all resources on creation fail.
OnFailureDelete bool `json:"on-failure-delete"`
// OnFailureDeleteWaitSeconds is the seconds to wait before deleting
// all resources on creation fail.
OnFailureDeleteWaitSeconds uint64 `json:"on-failure-delete-wait-seconds"`
// CommandAfterCreateCluster is the command to execute after creating clusters.
// Currently supported variables are:
// - "GetRef.Name" for cluster name
// - "GetRef.ClusterARN" for cluster ARN
CommandAfterCreateCluster string `json:"command-after-create-cluster"`
CommandAfterCreateClusterOutputPath string `json:"command-after-create-cluster-output-path" read-only:"true"`
CommandAfterCreateClusterTimeout time.Duration `json:"command-after-create-cluster-timeout"`
CommandAfterCreateClusterTimeoutString string `json:"command-after-create-cluster-timeout-string" read-only:"true"`
// CommandAfterCreateAddOns is the command to execute after creating clusters and add-ons.
// Currently supported variables are:
// - "GetRef.Name" for cluster name
// - "GetRef.ClusterARN" for cluster ARN
CommandAfterCreateAddOns string `json:"command-after-create-add-ons"`
CommandAfterCreateAddOnsOutputPath string `json:"command-after-create-add-ons-output-path" read-only:"true"`
CommandAfterCreateAddOnsTimeout time.Duration `json:"command-after-create-add-ons-timeout"`
CommandAfterCreateAddOnsTimeoutString string `json:"command-after-create-add-ons-timeout-string" read-only:"true"`
// S3BucketCreate is true to auto-create S3 bucket.
S3BucketCreate bool `json:"s3-bucket-create"`
// S3BucketCreateKeep is true to not delete auto-created S3 bucket.
// The created S3 bucket is kept.
S3BucketCreateKeep bool `json:"s3-bucket-create-keep"`
// S3BucketName is the name of cluster S3.
S3BucketName string `json:"s3-bucket-name"`
// S3BucketLifecycleExpirationDays is expiration in days for the lifecycle of the object.
S3BucketLifecycleExpirationDays int64 `json:"s3-bucket-lifecycle-expiration-days"`
// Parameters defines EKS "cluster" creation parameters.
// It's ok to leave any parameters empty.
// If empty, it will use default values.
Parameters *Parameters `json:"parameters,omitempty"`
// RemoteAccessKeyCreate is true to create the remote SSH access private key.
RemoteAccessKeyCreate bool `json:"remote-access-key-create"`
// RemoteAccessKeyName is the key name for node group SSH EC2 key pair.
// ref. https://docs.aws.amazon.com/eks/latest/userguide/create-managed-node-group.html
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-eks-nodegroup.html
RemoteAccessKeyName string `json:"remote-access-key-name,omitempty"`
// RemoteAccessPrivateKeyPath is the file path to store node group key pair private key.
// Thus, deployer must delete the private key right after node group creation.
// MAKE SURE PRIVATE KEY NEVER GETS UPLOADED TO CLOUD STORAGE AND DELETE AFTER USE!!!
// ref. https://docs.aws.amazon.com/eks/latest/userguide/create-managed-node-group.html
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-eks-nodegroup.html
RemoteAccessPrivateKeyPath string `json:"remote-access-private-key-path,omitempty"`
// Clients is the number of kubernetes clients to create.
// Default is 1.
// This field is used for "eks/stresser" tester. Configure accordingly.
// Rate limit is done via "k8s.io/client-go/util/flowcontrol.NewTokenBucketRateLimiter".
Clients int `json:"clients"`
// ClientQPS is the QPS for kubernetes client.
// To use while talking with kubernetes apiserver.
//
// Kubernetes client DefaultQPS is 5.
// Kubernetes client DefaultBurst is 10.
// ref. https://github.com/kubernetes/kubernetes/blob/4d0e86f0b8d1eae00a202009858c8739e4c9402e/staging/src/k8s.io/client-go/rest/config.go#L43-L46
//
// kube-apiserver default inflight requests limits are:
// FLAG: --max-mutating-requests-inflight="200"
// FLAG: --max-requests-inflight="400"
// ref. https://github.com/kubernetes/kubernetes/blob/4d0e86f0b8d1eae00a202009858c8739e4c9402e/staging/src/k8s.io/apiserver/pkg/server/config.go#L300-L301
//
// This field is used for "eks/stresser" tester. Configure accordingly.
// Rate limit is done via "k8s.io/client-go/util/flowcontrol.NewTokenBucketRateLimiter".
ClientQPS float32 `json:"client-qps"`
// ClientBurst is the burst for kubernetes client.
// To use while talking with kubernetes apiserver
//
// Kubernetes client DefaultQPS is 5.
// Kubernetes client DefaultBurst is 10.
// ref. https://github.com/kubernetes/kubernetes/blob/4d0e86f0b8d1eae00a202009858c8739e4c9402e/staging/src/k8s.io/client-go/rest/config.go#L43-L46
//
// kube-apiserver default inflight requests limits are:
// FLAG: --max-mutating-requests-inflight="200"
// FLAG: --max-requests-inflight="400"
// ref. https://github.com/kubernetes/kubernetes/blob/4d0e86f0b8d1eae00a202009858c8739e4c9402e/staging/src/k8s.io/apiserver/pkg/server/config.go#L300-L301
//
// This field is used for "eks/stresser" tester. Configure accordingly.
// Rate limit is done via "k8s.io/client-go/util/flowcontrol.NewTokenBucketRateLimiter".
ClientBurst int `json:"client-burst"`
// ClientTimeout is the client timeout.
ClientTimeout time.Duration `json:"client-timeout"`
ClientTimeoutString string `json:"client-timeout-string,omitempty" read-only:"true"`
// AddOnNodeGroups defines EKS "Node Group"
// creation parameters.
AddOnNodeGroups *AddOnNodeGroups `json:"add-on-node-groups,omitempty"`
// AddOnManagedNodeGroups defines EKS "Managed Node Group"
// creation parameters. If empty, it will use default values.
// ref. https://docs.aws.amazon.com/eks/latest/userguide/create-managed-node-group.html
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-eks-nodegroup.html
AddOnManagedNodeGroups *AddOnManagedNodeGroups `json:"add-on-managed-node-groups,omitempty"`
// TotalNodes is the total number of nodes from all node groups.
TotalNodes int64 `json:"total-nodes" read-only:"true"`
// AddOnConformance defines parameters for EKS cluster
// add-on Conformance.
AddOnConformance *AddOnConformance `json:"add-on-conformance,omitempty"`
// AddOnCSIEBS defines parameters for EKS cluster
// add-on AWS EBS CSI Driver.
AddOnCSIEBS *AddOnCSIEBS `json:"add-on-csi-ebs,omitempty"`
// AddOnAppMesh defines parameters for EKS cluster
// add-on "EKS App Mesh Integration".
AddOnAppMesh *AddOnAppMesh `json:"add-on-app-mesh,omitempty"`
// AddOnKubernetesDashboard defines parameters for EKS cluster
// add-on Dashboard.
AddOnKubernetesDashboard *AddOnKubernetesDashboard `json:"add-on-kubernetes-dashboard,omitempty"`
// AddOnPrometheusGrafana defines parameters for EKS cluster
// add-on Prometheus/Grafana.
AddOnPrometheusGrafana *AddOnPrometheusGrafana `json:"add-on-prometheus-grafana,omitempty"`
// AddOnNLBHelloWorld defines parameters for EKS cluster
// add-on NLB hello-world service.
AddOnNLBHelloWorld *AddOnNLBHelloWorld `json:"add-on-nlb-hello-world,omitempty"`
// AddOnALB2048 defines parameters for EKS cluster
// add-on ALB 2048 service.
AddOnALB2048 *AddOnALB2048 `json:"add-on-alb-2048,omitempty"`
// AddOnJobsPi defines parameters for EKS cluster
// add-on Job with pi Perl command.
AddOnJobsPi *AddOnJobsPi `json:"add-on-jobs-pi,omitempty"`
// AddOnJobsEcho defines parameters for EKS cluster
// add-on Job with echo.
AddOnJobsEcho *AddOnJobsEcho `json:"add-on-jobs-echo,omitempty"`
// AddOnCronJobs defines parameters for EKS cluster
// add-on with CronJob.
AddOnCronJobs *AddOnCronJobs `json:"add-on-cron-jobs,omitempty"`
// AddOnCSRsLocal defines parameters for EKS cluster
// add-on "CertificateSigningRequest" local.
// It generates loads from the local host machine.
AddOnCSRsLocal *AddOnCSRsLocal `json:"add-on-csrs-local,omitempty"`
// AddOnCSRsRemote defines parameters for EKS cluster
// add-on "CertificateSigningRequest" remote.
// It generates loads from the remote workers (Pod) in the cluster.
AddOnCSRsRemote *AddOnCSRsRemote `json:"add-on-csrs-remote,omitempty"`
// AddOnConfigMapsLocal defines parameters for EKS cluster
// add-on "ConfigMap" local.
// It generates loads from the local host machine.
AddOnConfigMapsLocal *AddOnConfigMapsLocal `json:"add-on-config-maps-local,omitempty"`
// AddOnConfigMapsRemote defines parameters for EKS cluster
// add-on "ConfigMap" remote.
// It generates loads from the remote workers (Pod) in the cluster.
AddOnConfigMapsRemote *AddOnConfigMapsRemote `json:"add-on-config-maps-remote,omitempty"`
// AddOnSecretsLocal defines parameters for EKS cluster
// add-on "Secrets" local.
// It generates loads from the local host machine.
AddOnSecretsLocal *AddOnSecretsLocal `json:"add-on-secrets-local,omitempty"`
// AddOnSecretsRemote defines parameters for EKS cluster
// add-on "Secrets" remote.
// It generates loads from the remote workers (Pod) in the cluster.
AddOnSecretsRemote *AddOnSecretsRemote `json:"add-on-secrets-remote,omitempty"`
// AddOnFargate defines parameters for EKS cluster
// add-on "EKS on Fargate".
AddOnFargate *AddOnFargate `json:"add-on-fargate,omitempty"`
// AddOnIRSA defines parameters for EKS cluster
// add-on "IAM Roles for Service Accounts (IRSA)".
AddOnIRSA *AddOnIRSA `json:"add-on-irsa,omitempty"`
// AddOnIRSAFargate defines parameters for EKS cluster
// add-on "IAM Roles for Service Accounts (IRSA)" with Fargate.
AddOnIRSAFargate *AddOnIRSAFargate `json:"add-on-irsa-fargate,omitempty"`
// AddOnWordpress defines parameters for EKS cluster
// add-on WordPress.
AddOnWordpress *AddOnWordpress `json:"add-on-wordpress,omitempty"`
// AddOnJupyterHub defines parameters for EKS cluster
// add-on JupyterHub.
AddOnJupyterHub *AddOnJupyterHub `json:"add-on-jupyter-hub,omitempty"`
// AddOnKubeflow defines parameters for EKS cluster
// add-on Kubeflow.
AddOnKubeflow *AddOnKubeflow `json:"add-on-kubeflow,omitempty"`
// AddOnCUDAVectorAdd defines parameters for EKS cluster
// add-on cuda-vector-add.
AddOnCUDAVectorAdd *AddOnCUDAVectorAdd `json:"add-on-cuda-vector-add,omitempty"`
// AddOnHollowNodesLocal defines parameters for EKS cluster
// add-on hollow nodes local.
// It generates loads from the local host machine.
AddOnHollowNodesLocal *AddOnHollowNodesLocal `json:"add-on-hollow-nodes-local,omitempty"`
// AddOnHollowNodesRemote defines parameters for EKS cluster
// add-on hollow nodes remote.
// It generates loads from the remote workers (Pod) in the cluster.
AddOnHollowNodesRemote *AddOnHollowNodesRemote `json:"add-on-hollow-nodes-remote,omitempty"`
// AddOnStresserLocal defines parameters for EKS cluster
// add-on cluster loader local.
// It generates loads from the local host machine.
// ref. https://github.com/kubernetes/perf-tests
AddOnStresserLocal *AddOnStresserLocal `json:"add-on-stresser-local,omitempty"`
// AddOnStresserRemote defines parameters for EKS cluster
// add-on cluster loader remote.
// It generates loads from the remote workers (Pod) in the cluster.
// ref. https://github.com/kubernetes/perf-tests
AddOnStresserRemote *AddOnStresserRemote `json:"add-on-stresser-remote,omitempty"`
// AddOnClusterLoaderLocal defines parameters for EKS cluster
// add-on cluster loader local.
// It generates loads from the local host machine.
// ref. https://github.com/kubernetes/perf-tests/tree/master/clusterloader2
AddOnClusterLoaderLocal *AddOnClusterLoaderLocal `json:"add-on-cluster-loader-local,omitempty"`
// AddOnClusterLoaderRemote defines parameters for EKS cluster
// add-on cluster loader remote.
// It generates loads from the remote host machine.
// ref. https://github.com/kubernetes/perf-tests/tree/master/clusterloader2
AddOnClusterLoaderRemote *AddOnClusterLoaderRemote `json:"add-on-cluster-loader-remote,omitempty"`
// Status represents the current status of AWS resources.
// Status is read-only.
// Status cannot be configured via environmental variables.
Status *Status `json:"status,omitempty" read-only:"true"`
}
// Load loads configuration from YAML.
// Useful when injecting shared configuration via ConfigMap.
//
// Example usage:
//
// import "github.com/aws/aws-k8s-tester/eksconfig"
// cfg := eksconfig.Load("test.yaml")
// err := cfg.ValidateAndSetDefaults()
//
// Do not set default values in this function.
// "ValidateAndSetDefaults" must be called separately,
// to prevent overwriting previous data when loaded from disks.
func Load(p string) (cfg *Config, err error) {
var d []byte
d, err = ioutil.ReadFile(p)
if err != nil {
return nil, err
}
cfg = new(Config)
if err = yaml.Unmarshal(d, cfg); err != nil {
return nil, err
}
cfg.mu = new(sync.RWMutex)
if cfg.ConfigPath != p {
cfg.ConfigPath = p
}
var ap string
ap, err = filepath.Abs(p)
if err != nil {
return nil, err
}
cfg.ConfigPath = ap
cfg.unsafeSync()
return cfg, nil
}
// EvaluateCommandRefs updates "CommandAfterCreateCluster" and "CommandAfterCreateAddOns".
// currently, only support "GetRef.Name" and "GetRef.ClusterARN"
func (cfg *Config) EvaluateCommandRefs() error {
cfg.mu.Lock()
err := cfg.evaluateCommandRefs()
cfg.mu.Unlock()
return err
}
func (cfg *Config) evaluateCommandRefs() error {
if cfg.CommandAfterCreateCluster != "" {
ss := strings.Split(cfg.CommandAfterCreateCluster, " ")
p, err := exec.LookPath(ss[0])
if err != nil {
return fmt.Errorf("%q does not exist (%v)", ss[0], err)
}
ss[0] = p
cfg.CommandAfterCreateCluster = strings.Join(ss, " ")
}
if cfg.CommandAfterCreateAddOns != "" {
ss := strings.Split(cfg.CommandAfterCreateAddOns, " ")
p, err := exec.LookPath(ss[0])
if err != nil {
return fmt.Errorf("%q does not exist (%v)", ss[0], err)
}
ss[0] = p
cfg.CommandAfterCreateAddOns = strings.Join(ss, " ")
}
if cfg.Name != "" && strings.Contains(cfg.CommandAfterCreateCluster, "GetRef.Name") {
cfg.CommandAfterCreateCluster = strings.ReplaceAll(cfg.CommandAfterCreateCluster, "GetRef.Name", cfg.Name)
}
if cfg.Status != nil && cfg.Status.ClusterARN != "" && strings.Contains(cfg.CommandAfterCreateCluster, "GetRef.ClusterARN") {
cfg.CommandAfterCreateCluster = strings.ReplaceAll(cfg.CommandAfterCreateCluster, "GetRef.ClusterARN", cfg.Status.ClusterARN)
}
if cfg.Name != "" && strings.Contains(cfg.CommandAfterCreateAddOns, "GetRef.Name") {
cfg.CommandAfterCreateAddOns = strings.ReplaceAll(cfg.CommandAfterCreateAddOns, "GetRef.Name", cfg.Name)
}
if cfg.Status != nil && cfg.Status.ClusterARN != "" && strings.Contains(cfg.CommandAfterCreateAddOns, "GetRef.ClusterARN") {
cfg.CommandAfterCreateAddOns = strings.ReplaceAll(cfg.CommandAfterCreateAddOns, "GetRef.ClusterARN", cfg.Status.ClusterARN)
}
return cfg.unsafeSync()
}
// Sync persists current configuration and states to disk.
func (cfg *Config) Sync() (err error) {
cfg.mu.Lock()
defer cfg.mu.Unlock()
return cfg.unsafeSync()
}
func (cfg *Config) unsafeSync() (err error) {
var p string
if cfg.ConfigPath != "" && !filepath.IsAbs(cfg.ConfigPath) {
p, err = filepath.Abs(cfg.ConfigPath)
if err != nil {
return fmt.Errorf("failed to 'filepath.Abs(%s)' %v", cfg.ConfigPath, err)
}
cfg.ConfigPath = p
}
if cfg.KubeConfigPath != "" && !filepath.IsAbs(cfg.KubeConfigPath) {
p, err = filepath.Abs(cfg.KubeConfigPath)
if err != nil {
return fmt.Errorf("failed to 'filepath.Abs(%s)' %v", cfg.KubeConfigPath, err)
}
cfg.KubeConfigPath = p
}
var d []byte
d, err = yaml.Marshal(cfg)
if err != nil {
return fmt.Errorf("failed to 'yaml.Marshal' %v", err)
}
err = ioutil.WriteFile(cfg.ConfigPath, d, 0600)
if err != nil {
return fmt.Errorf("failed to write file %q (%v)", cfg.ConfigPath, err)
}
if cfg.RemoteAccessCommandsOutputPath != "" {
err = ioutil.WriteFile(cfg.RemoteAccessCommandsOutputPath, []byte(cmdTop+cfg.unsafeSSHCommands()), 0600)
if err != nil {
return fmt.Errorf("failed to write RemoteAccessCommandsOutputPath %q (%v)", cfg.RemoteAccessCommandsOutputPath, err)
}
}
if cfg.KubectlCommandsOutputPath != "" {
err = ioutil.WriteFile(cfg.KubectlCommandsOutputPath, []byte(cmdTop+cfg.KubectlCommands()), 0600)
if err != nil {
return fmt.Errorf("failed to write KubectlCommandsOutputPath %q (%v)", cfg.KubectlCommandsOutputPath, err)
}
}
return nil
}
const cmdTop = `#!/bin/bash
set -e
set -x
`
// KubectlCommand returns the kubectl command.
func (cfg *Config) KubectlCommand() string {
return fmt.Sprintf("%s --kubeconfig=%s", cfg.KubectlPath, cfg.KubeConfigPath)
}
// KubectlCommands returns the various kubectl commands.
func (cfg *Config) KubectlCommands() (s string) {
if cfg.KubeConfigPath == "" {
return ""
}
tpl := template.Must(template.New("kubectlTmpl").Parse(kubectlTmpl))
buf := bytes.NewBuffer(nil)
if err := tpl.Execute(buf, struct {
KubeConfigPath string
KubectlCommand string
KubernetesDashboardEnabled bool
KubernetesDashboardURL string
KubernetesDashboardAuthenticationToken string
}{
cfg.KubeConfigPath,
cfg.KubectlCommand(),
cfg.IsEnabledAddOnKubernetesDashboard(),
cfg.getAddOnKubernetesDashboardURL(),
cfg.getAddOnKubernetesDashboardAuthenticationToken(),
}); err != nil {
return ""
}
return buf.String()
}
const kubectlTmpl = `
###########################
# kubectl commands
export KUBECONFIG={{ .KubeConfigPath }}
export KUBECTL="{{ .KubectlCommand }}"
{{ .KubectlCommand }} version
{{ .KubectlCommand }} cluster-info
{{ .KubectlCommand }} get cs
{{ .KubectlCommand }} --namespace=kube-system get pods
{{ .KubectlCommand }} --namespace=kube-system get ds
{{ .KubectlCommand }} get pods
{{ .KubectlCommand }} get csr -o=yaml
{{ .KubectlCommand }} get nodes --show-labels -o=wide
{{ .KubectlCommand }} get nodes -o=wide
###########################
{{ if .KubernetesDashboardEnabled }}
###########################
{{ .KubectlCommand }} proxy
# Kubernetes Dashboard URL:
{{ .KubernetesDashboardURL }}
# Kubernetes Dashboard Authentication Token:
{{ .KubernetesDashboardAuthenticationToken }}
###########################
{{ end }}
`
// SSHCommands returns the SSH commands.
func (cfg *Config) SSHCommands() string {
cfg.mu.RLock()
defer cfg.mu.RUnlock()
return cfg.unsafeSSHCommands()
}
func (cfg *Config) unsafeSSHCommands() (s string) {
buf := bytes.NewBuffer(nil)
buf.WriteByte('\n')
if cfg.AddOnNodeGroups != nil && cfg.AddOnNodeGroups.Enable {
for name, cur := range cfg.AddOnNodeGroups.ASGs {
if len(cur.Instances) == 0 {
buf.WriteString(fmt.Sprintf("no ASG instances found for node group %s\n", name))
continue
}
buf.WriteString("ASG name from node group \"" + name + "\":\n")
asg := &ec2config.ASG{
Name: name,
Instances: cur.Instances,
}
buf.WriteString(asg.SSHCommands(cfg.Region, cfg.RemoteAccessPrivateKeyPath, cfg.AddOnNodeGroups.ASGs[name].RemoteAccessUserName))
buf.WriteString("\n\n")
}
}
if cfg.AddOnManagedNodeGroups != nil && cfg.AddOnManagedNodeGroups.Enable {
for name, cur := range cfg.AddOnManagedNodeGroups.MNGs {
if len(cur.Instances) == 0 {
buf.WriteString(fmt.Sprintf("no ASG instances found for managed node group %s\n", name))
continue
}
buf.WriteString("ASG name from managed node group \"" + name + "\":\n")
asg := &ec2config.ASG{
Name: name,
Instances: cur.Instances,
}
buf.WriteString(asg.SSHCommands(cfg.Region, cfg.RemoteAccessPrivateKeyPath, cfg.AddOnManagedNodeGroups.MNGs[name].RemoteAccessUserName))
buf.WriteString("\n\n")
}
}
return buf.String()
}
const (
// DefaultClients is the default number of clients to create.
DefaultClients = 2
// DefaultClientQPS is the default client QPS.
DefaultClientQPS float32 = 10
// DefaultClientBurst is the default client burst.
DefaultClientBurst = 20
// DefaultClientTimeout is the default client timeout.
DefaultClientTimeout = 15 * time.Second
DefaultCommandAfterCreateClusterTimeout = 3 * time.Minute
DefaultCommandAfterCreateAddOnsTimeout = 3 * time.Minute
// DefaultNodeInstanceTypeCPU is the default EC2 instance type for CPU worker node.
DefaultNodeInstanceTypeCPU = "c5.xlarge"
// DefaultNodeInstanceTypeGPU is the default EC2 instance type for GPU worker node.
DefaultNodeInstanceTypeGPU = "p3.8xlarge"
// DefaultNodeVolumeSize is the default EC2 instance volume size for a worker node.
DefaultNodeVolumeSize = 40
// NGsMaxLimit is the maximum number of "Node Group"s per a EKS cluster.
NGsMaxLimit = 10
// NGMaxLimit is the maximum number of nodes per a "Node Group".
NGMaxLimit = 5000
// MNGsMaxLimit is the maximum number of "Managed Node Group"s per a EKS cluster.
MNGsMaxLimit = 10
// MNGMaxLimit is the maximum number of nodes per a "Managed Node Group".
MNGMaxLimit = 100
)
// NewDefault returns a default configuration.
// - empty string creates a non-nil object for pointer-type field
// - omitting an entire field returns nil value
// - make sure to check both
func NewDefault() *Config {
name := fmt.Sprintf("eks-%s-%s", getTS()[:10], randutil.String(12))
if v := os.Getenv(AWS_K8S_TESTER_EKS_PREFIX + "NAME"); v != "" {
name = v
}
cfg := Config{
mu: new(sync.RWMutex),
Name: name,
Partition: endpoints.AwsPartitionID,
Region: endpoints.UsWest2RegionID,
// to be auto-generated
ConfigPath: "",
KubectlCommandsOutputPath: "",
KubeConfigPath: "",
AWSCLIPath: "",
LogColor: true,
LogLevel: logutil.DefaultLogLevel,
// default, stderr, stdout, or file name
// log file named with cluster name will be added automatically
LogOutputs: []string{"stderr"},
// https://github.com/kubernetes/kubernetes/tags
// https://kubernetes.io/docs/tasks/tools/install-kubectl/
// https://docs.aws.amazon.com/eks/latest/userguide/install-kubectl.html
KubectlPath: "/tmp/kubectl-test-v1.16.9",
KubectlDownloadURL: "https://storage.googleapis.com/kubernetes-release/release/v1.16.9/bin/linux/amd64/kubectl",
OnFailureDelete: true,
OnFailureDeleteWaitSeconds: 120,
S3BucketName: "",
S3BucketCreate: false,
S3BucketCreateKeep: false,
S3BucketLifecycleExpirationDays: 0,
Parameters: getDefaultParameters(),
RemoteAccessKeyCreate: true,
// keep in-sync with the default value in https://pkg.go.dev/k8s.io/kubernetes/test/e2e/framework#GetSigner
RemoteAccessPrivateKeyPath: filepath.Join(homedir.HomeDir(), ".ssh", "kube_aws_rsa"),
// Kubernetes client DefaultQPS is 5.
// Kubernetes client DefaultBurst is 10.
// ref. https://github.com/kubernetes/kubernetes/blob/4d0e86f0b8d1eae00a202009858c8739e4c9402e/staging/src/k8s.io/client-go/rest/config.go#L43-L46
//
// kube-apiserver default inflight requests limits are:
// FLAG: --max-mutating-requests-inflight="200"
// FLAG: --max-requests-inflight="400"
// ref. https://github.com/kubernetes/kubernetes/blob/4d0e86f0b8d1eae00a202009858c8739e4c9402e/staging/src/k8s.io/apiserver/pkg/server/config.go#L300-L301
//
Clients: DefaultClients,
ClientQPS: DefaultClientQPS,
ClientBurst: DefaultClientBurst,
AddOnNodeGroups: getDefaultAddOnNodeGroups(name),
AddOnManagedNodeGroups: getDefaultAddOnManagedNodeGroups(name),
AddOnConformance: getDefaultAddOnConformance(),
AddOnCSIEBS: getDefaultAddOnCSIEBS(),
AddOnAppMesh: getDefaultAddOnAppMesh(),
AddOnKubernetesDashboard: getDefaultAddOnKubernetesDashboard(),
AddOnPrometheusGrafana: getDefaultAddOnPrometheusGrafana(),
AddOnNLBHelloWorld: getDefaultAddOnNLBHelloWorld(),
AddOnALB2048: getDefaultAddOnALB2048(),
AddOnJobsPi: getDefaultAddOnJobsPi(),
AddOnJobsEcho: getDefaultAddOnJobsEcho(),
AddOnCronJobs: getDefaultAddOnCronJobs(),
AddOnCSRsLocal: getDefaultAddOnCSRsLocal(),
AddOnCSRsRemote: getDefaultAddOnCSRsRemote(),
AddOnConfigMapsLocal: getDefaultAddOnConfigMapsLocal(),
AddOnConfigMapsRemote: getDefaultAddOnConfigMapsRemote(),
AddOnSecretsLocal: getDefaultAddOnSecretsLocal(),
AddOnSecretsRemote: getDefaultAddOnSecretsRemote(),
AddOnFargate: getDefaultAddOnFargate(),
AddOnIRSA: getDefaultAddOnIRSA(),
AddOnIRSAFargate: getDefaultAddOnIRSAFargate(),
AddOnWordpress: getDefaultAddOnWordpress(),
AddOnJupyterHub: getDefaultAddOnJupyterHub(),
AddOnKubeflow: getDefaultAddOnKubeflow(),
AddOnCUDAVectorAdd: getDefaultAddOnCUDAVectorAdd(),
AddOnHollowNodesLocal: getDefaultAddOnHollowNodesLocal(),
AddOnHollowNodesRemote: getDefaultAddOnHollowNodesRemote(),
AddOnStresserLocal: getDefaultAddOnStresserLocal(),
AddOnStresserRemote: getDefaultAddOnStresserRemote(),
AddOnClusterLoaderLocal: getDefaultAddOnClusterLoaderLocal(),
AddOnClusterLoaderRemote: getDefaultAddOnClusterLoaderRemote(),
// read-only
Status: &Status{Up: false},
}
// https://docs.aws.amazon.com/cli/latest/userguide/cli-chap-welcome.html
// pip3 install awscli --no-cache-dir --upgrade
var err error
cfg.AWSCLIPath, err = exec.LookPath("aws")
if err != nil {
panic(fmt.Errorf("aws CLI is not installed (%v)", err))
}
if runtime.GOOS == "darwin" {
cfg.KubectlDownloadURL = strings.Replace(cfg.KubectlDownloadURL, "linux", "darwin", -1)
cfg.RemoteAccessPrivateKeyPath = filepath.Join(os.TempDir(), randutil.String(10)+".insecure.key")
}
return &cfg
}
// ValidateAndSetDefaults returns an error for invalid configurations.
// And updates empty fields with default values.
// At the end, it writes populated YAML to aws-k8s-tester config path.
// "read-only" fields cannot be set, causing errors.
func (cfg *Config) ValidateAndSetDefaults() error {
if cfg.mu == nil {
cfg.mu = new(sync.RWMutex)
}
cfg.mu.Lock()
defer func() {
cfg.unsafeSync()
cfg.mu.Unlock()
}()
if err := cfg.validateConfig(); err != nil {
return fmt.Errorf("validateConfig failed [%v]", err)
}
if err := cfg.validateParameters(); err != nil {
return fmt.Errorf("validateParameters failed [%v]", err)
}
if err := cfg.validateAddOnNodeGroups(); err != nil {
return fmt.Errorf("validateAddOnNodeGroups failed [%v]", err)
}
if err := cfg.validateAddOnManagedNodeGroups(); err != nil {
return fmt.Errorf("validateAddOnManagedNodeGroups failed [%v]", err)
}
total := int64(0)
if cfg.IsEnabledAddOnNodeGroups() {
for _, cur := range cfg.AddOnNodeGroups.ASGs {
total += cur.ASGDesiredCapacity
}
}
if cfg.IsEnabledAddOnManagedNodeGroups() {
for _, cur := range cfg.AddOnManagedNodeGroups.MNGs {
total += int64(cur.ASGDesiredCapacity)
}
}
cfg.TotalNodes = total
if err := cfg.validateAddOnConformance(); err != nil {
return fmt.Errorf("validateAddOnConformance failed [%v]", err)
}
if err := cfg.validateAddOnCSIEBS(); err != nil {
return fmt.Errorf("validateAddOnCSIEBS failed [%v]", err)
}
if err := cfg.validateAddOnAppMesh(); err != nil {
return fmt.Errorf("validateAddOnAppMesh failed [%v]", err)
}
if err := cfg.validateAddOnKubernetesDashboard(); err != nil {
return fmt.Errorf("validateAddOnKubernetesDashboard failed [%v]", err)
}
if err := cfg.validateAddOnPrometheusGrafana(); err != nil {
return fmt.Errorf("validateAddOnPrometheusGrafana failed [%v]", err)
}
if err := cfg.validateAddOnNLBHelloWorld(); err != nil {
return fmt.Errorf("validateAddOnNLBHelloWorld failed [%v]", err)
}
if err := cfg.validateAddOnALB2048(); err != nil {
return fmt.Errorf("validateAddOnALB2048 failed [%v]", err)
}
if err := cfg.validateAddOnJobsPi(); err != nil {
return fmt.Errorf("validateAddOnJobsPi failed [%v]", err)
}
if err := cfg.validateAddOnJobsEcho(); err != nil {
return fmt.Errorf("validateAddOnJobsEcho failed [%v]", err)
}
if err := cfg.validateAddOnCronJobs(); err != nil {
return fmt.Errorf("validateAddOnCronJobs failed [%v]", err)
}
if err := cfg.validateAddOnCSRsLocal(); err != nil {
return fmt.Errorf("validateAddOnCSRsLocal failed [%v]", err)
}
if err := cfg.validateAddOnCSRsRemote(); err != nil {
return fmt.Errorf("validateAddOnCSRsRemote failed [%v]", err)
}
if err := cfg.validateAddOnConfigMapsLocal(); err != nil {
return fmt.Errorf("validateAddOnConfigMapsLocal failed [%v]", err)
}
if err := cfg.validateAddOnConfigMapsRemote(); err != nil {
return fmt.Errorf("validateAddOnConfigMapsRemote failed [%v]", err)
}
if err := cfg.validateAddOnSecretsLocal(); err != nil {
return fmt.Errorf("validateAddOnSecretsLocal failed [%v]", err)
}
if err := cfg.validateAddOnSecretsRemote(); err != nil {
return fmt.Errorf("validateAddOnSecretsRemote failed [%v]", err)
}
if err := cfg.validateAddOnFargate(); err != nil {
return fmt.Errorf("validateAddOnFargate failed [%v]", err)
}
if err := cfg.validateAddOnIRSA(); err != nil {
return fmt.Errorf("validateAddOnIRSA failed [%v]", err)
}
if err := cfg.validateAddOnIRSAFargate(); err != nil {
return fmt.Errorf("validateIRSAAddOnFargate failed [%v]", err)
}
if err := cfg.validateAddOnWordpress(); err != nil {
return fmt.Errorf("validateAddOnWordpress failed [%v]", err)
}
if err := cfg.validateAddOnJupyterHub(); err != nil {
return fmt.Errorf("validateAddOnJupyterHub failed [%v]", err)
}
if err := cfg.validateAddOnKubeflow(); err != nil {
return fmt.Errorf("validateAddOnKubeflow failed [%v]", err)
}
if err := cfg.validateAddOnCUDAVectorAdd(); err != nil {
return fmt.Errorf("validateAddOnCUDAVectorAdd failed [%v]", err)
}
if err := cfg.validateAddOnClusterLoaderLocal(); err != nil {
return fmt.Errorf("validateAddOnClusterLoaderLocal failed [%v]", err)
}
if err := cfg.validateAddOnClusterLoaderRemote(); err != nil {
return fmt.Errorf("validateAddOnClusterLoaderRemote failed [%v]", err)
}
if err := cfg.validateAddOnHollowNodesLocal(); err != nil {
return fmt.Errorf("validateAddOnHollowNodesLocal failed [%v]", err)
}
if err := cfg.validateAddOnHollowNodesRemote(); err != nil {
return fmt.Errorf("validateAddOnHollowNodesRemote failed [%v]", err)
}
if err := cfg.validateAddOnStresserLocal(); err != nil {
return fmt.Errorf("validateAddOnStresserLocal failed [%v]", err)
}
if err := cfg.validateAddOnStresserRemote(); err != nil {
return fmt.Errorf("validateAddOnStresserRemote failed [%v]", err)
}
return nil
}
func (cfg *Config) validateConfig() error {
if len(cfg.Name) == 0 {
return errors.New("Name is empty")
}
if cfg.Name != strings.ToLower(cfg.Name) {
return fmt.Errorf("Name %q must be in lower-case", cfg.Name)
}
var partition endpoints.Partition
switch cfg.Partition {
case endpoints.AwsPartitionID:
partition = endpoints.AwsPartition()
case endpoints.AwsCnPartitionID:
partition = endpoints.AwsCnPartition()
case endpoints.AwsUsGovPartitionID:
partition = endpoints.AwsUsGovPartition()
case endpoints.AwsIsoPartitionID:
partition = endpoints.AwsIsoPartition()
case endpoints.AwsIsoBPartitionID:
partition = endpoints.AwsIsoBPartition()
default:
return fmt.Errorf("unknown partition %q", cfg.Partition)
}
regions := partition.Regions()
if _, ok := regions[cfg.Region]; !ok {
return fmt.Errorf("region %q for partition %q not found in %+v", cfg.Region, cfg.Partition, regions)
}
_, cerr := terminal.IsColor()
if cfg.LogColor && cerr != nil {
cfg.LogColor = false
}
if len(cfg.LogOutputs) == 0 {
return errors.New("LogOutputs is not empty")
}
if cfg.Clients == 0 {
cfg.Clients = DefaultClients
}
if cfg.ClientQPS == 0 {
cfg.ClientQPS = DefaultClientQPS
}
if cfg.ClientBurst == 0 {
cfg.ClientBurst = DefaultClientBurst
}
if cfg.ClientTimeout == time.Duration(0) {
cfg.ClientTimeout = DefaultClientTimeout
}
cfg.ClientTimeoutString = cfg.ClientTimeout.String()
if cfg.ConfigPath == "" {
rootDir, err := os.Getwd()
if err != nil {
rootDir = filepath.Join(os.TempDir(), cfg.Name)
if err := os.MkdirAll(rootDir, 0700); err != nil {
return err
}
}
cfg.ConfigPath = filepath.Join(rootDir, cfg.Name+".yaml")
var p string
p, err = filepath.Abs(cfg.ConfigPath)
if err != nil {
panic(err)
}
cfg.ConfigPath = p
}
if err := os.MkdirAll(filepath.Dir(cfg.ConfigPath), 0700); err != nil {
return err
}
if err := fileutil.IsDirWriteable(filepath.Dir(cfg.ConfigPath)); err != nil {
return err
}
if len(cfg.LogOutputs) == 1 && (cfg.LogOutputs[0] == "stderr" || cfg.LogOutputs[0] == "stdout") {
cfg.LogOutputs = append(cfg.LogOutputs, strings.ReplaceAll(cfg.ConfigPath, ".yaml", "")+".log")
}
if cfg.KubectlCommandsOutputPath == "" {
cfg.KubectlCommandsOutputPath = strings.ReplaceAll(cfg.ConfigPath, ".yaml", "") + ".kubectl.sh"
}
if filepath.Ext(cfg.KubectlCommandsOutputPath) != ".sh" {
cfg.KubectlCommandsOutputPath = cfg.KubectlCommandsOutputPath + ".sh"
}
if err := fileutil.IsDirWriteable(filepath.Dir(cfg.KubectlCommandsOutputPath)); err != nil {
return err
}
if cfg.RemoteAccessCommandsOutputPath == "" {
cfg.RemoteAccessCommandsOutputPath = strings.ReplaceAll(cfg.ConfigPath, ".yaml", "") + ".ssh.sh"
}
if filepath.Ext(cfg.RemoteAccessCommandsOutputPath) != ".sh" {
cfg.RemoteAccessCommandsOutputPath = cfg.RemoteAccessCommandsOutputPath + ".sh"
}
if err := fileutil.IsDirWriteable(filepath.Dir(cfg.RemoteAccessCommandsOutputPath)); err != nil {
return err
}
if filepath.Ext(cfg.CommandAfterCreateClusterOutputPath) != ".log" {
cfg.CommandAfterCreateClusterOutputPath = cfg.CommandAfterCreateClusterOutputPath + ".log"
}
if cfg.CommandAfterCreateClusterOutputPath == "" {
cfg.CommandAfterCreateClusterOutputPath = strings.ReplaceAll(cfg.ConfigPath, ".yaml", "") + ".after-create-cluster.out.log"
}
if err := fileutil.IsDirWriteable(filepath.Dir(cfg.CommandAfterCreateClusterOutputPath)); err != nil {
return err
}
if cfg.CommandAfterCreateClusterTimeout == time.Duration(0) {
cfg.CommandAfterCreateClusterTimeout = DefaultCommandAfterCreateClusterTimeout
}
cfg.CommandAfterCreateClusterTimeoutString = cfg.CommandAfterCreateClusterTimeout.String()
if filepath.Ext(cfg.CommandAfterCreateAddOnsOutputPath) != ".log" {
cfg.CommandAfterCreateAddOnsOutputPath = cfg.CommandAfterCreateAddOnsOutputPath + ".log"
}
if cfg.CommandAfterCreateAddOnsOutputPath == "" {
cfg.CommandAfterCreateAddOnsOutputPath = strings.ReplaceAll(cfg.ConfigPath, ".yaml", "") + ".after-create-add-ons.out.log"
}
if err := fileutil.IsDirWriteable(filepath.Dir(cfg.CommandAfterCreateAddOnsOutputPath)); err != nil {
return err
}
if cfg.CommandAfterCreateAddOnsTimeout == time.Duration(0) {
cfg.CommandAfterCreateAddOnsTimeout = DefaultCommandAfterCreateAddOnsTimeout
}
cfg.CommandAfterCreateAddOnsTimeoutString = cfg.CommandAfterCreateAddOnsTimeout.String()
if cfg.KubeConfigPath == "" {
cfg.KubeConfigPath = strings.ReplaceAll(cfg.ConfigPath, ".yaml", "") + ".kubeconfig.yaml"
}
if err := fileutil.IsDirWriteable(filepath.Dir(cfg.KubeConfigPath)); err != nil {
return err
}
if cfg.KubectlPath == "" && cfg.KubectlDownloadURL == "" {
return errors.New("empty KubectlPath and KubectlDownloadURL")
}
if !strings.Contains(cfg.KubectlDownloadURL, runtime.GOOS) {
return fmt.Errorf("kubectl-download-url %q build OS mismatch, expected %q", cfg.KubectlDownloadURL, runtime.GOOS)
}
if err := cfg.evaluateCommandRefs(); err != nil {
return err
}
switch cfg.S3BucketCreate {
case true: // need create one, or already created
if cfg.S3BucketName == "" {
cfg.S3BucketName = cfg.Name + "-s3-bucket"
}
if cfg.S3BucketLifecycleExpirationDays > 0 && cfg.S3BucketLifecycleExpirationDays < 3 {
cfg.S3BucketLifecycleExpirationDays = 3
}
case false: // use existing one
}
return nil
}
func (cfg *Config) validateParameters() error {
if cfg.Parameters.Version == "" {
return errors.New("empty Parameters.Version")
}
var err error
cfg.Parameters.VersionValue, err = strconv.ParseFloat(cfg.Parameters.Version, 64)
if err != nil {
return fmt.Errorf("cannot parse Parameters.Version %q (%v)", cfg.Parameters.Version, err)