/
config.go
1423 lines (1277 loc) · 56 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"
"path/filepath"
"reflect"
"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"
"github.com/mitchellh/colorstring"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"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_"
// EnvironmentVariablePrefixParameters is the environment variable prefix used for "eksconfig".
const EnvironmentVariablePrefixParameters = AWS_K8S_TESTER_EKS_PREFIX + "PARAMETERS_"
// Config defines EKS configuration.
type Config struct {
mu *sync.RWMutex
// TODO, Migrate metadata fields to here
metav1.TypeMeta `json:",inline"`
metav1.ObjectMeta `json:"metadata,omitempty"`
// 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"`
// LogColorOverride is true to use "LogColor" setting
// even if the current terminal does not support color outputs.
// Useful to output in color in HTML based log outputs (e.g. Prow).
LogColorOverride bool `json:"log-color-override"`
// 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.
// Required for 'aws eks update-kubeconfig'.
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"`
// CWNamespace is the CloudWatch namespace to put metric datum.
CWNamespace string `json:"cw-namespace"`
// SkipDeleteClusterAndNodes is true to skip EKS "cluster" and "nodes" deletion.
// The created EKS "cluster" and all resources created "before" cluster are kept.
// For example, CMK key, VPC, IAM role are not deleted if cluster is to be kept.
// All node groups and managed node groups are kept.
// Use this to use existing clusters to create/delete add-ons.
SkipDeleteClusterAndNodes bool `json:"skip-delete-cluster-and-nodes"`
// 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"`
// AddOnCNIVPC defines parameters for https://github.com/aws/amazon-vpc-cni-k8s.
AddOnCNIVPC *AddOnCNIVPC `json:"add-on-cni-vpc"`
// 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"`
TotalHollowNodes int64 `json:"total-hollow-nodes" read-only:"true"`
// AddOnCWAgent defines parameters for EKS cluster
// add-on Fluentd.
AddOnCWAgent *AddOnCWAgent `json:"add-on-cw-agent,omitempty"`
// AddOnFluentd defines parameters for EKS cluster
// add-on Fluentd.
AddOnFluentd *AddOnFluentd `json:"add-on-fluentd,omitempty"`
// AddOnMetricsServer defines parameters for EKS cluster
// add-on metrics server.
AddOnMetricsServer *AddOnMetricsServer `json:"add-on-metrics-server,omitempty"`
// AddOnConformance defines parameters for EKS cluster
// add-on Conformance.
AddOnConformance *AddOnConformance `json:"add-on-conformance,omitempty"`
// AddOnAppMesh defines parameters for EKS cluster
// add-on "EKS App Mesh Integration".
AddOnAppMesh *AddOnAppMesh `json:"add-on-app-mesh,omitempty"`
// AddOnCSIEBS defines parameters for EKS cluster
// add-on AWS EBS CSI Driver.
AddOnCSIEBS *AddOnCSIEBS `json:"add-on-csi-ebs,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"`
// AddOnPHPApache defines parameters for EKS cluster
// add-on PHP Apache.
AddOnPHPApache *AddOnPHPApache `json:"add-on-php-apache,omitempty"`
// AddOnNLBHelloWorld defines parameters for EKS cluster
// add-on NLB hello-world service.
AddOnNLBHelloWorld *AddOnNLBHelloWorld `json:"add-on-nlb-hello-world,omitempty"`
// AddOnNLBGuestbook defines parameters for EKS cluster
// add-on NLB guestbook service.
// ref. https://docs.aws.amazon.com/eks/latest/userguide/eks-guestbook.html
AddOnNLBGuestbook *AddOnNLBGuestbook `json:"add-on-nlb-guestbook,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-configmaps-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-configmaps-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"`
// 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"`
// 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"`
// AddOnClusterVersionUpgrade defines parameters
// for EKS cluster version upgrade add-on.
AddOnClusterVersionUpgrade *AddOnClusterVersionUpgrade `json:"add-on-cluster-version-upgrade,omitempty"`
// Spec contains addons and other configuration
// Note: New addons should be implemented inside spec
Spec Spec `json:"spec,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"`
}
// Colorize prints colorized input, if color output is supported.
func (c Config) Colorize(input string) string {
colorize := colorstring.Colorize{
Colors: colorstring.DefaultColors,
Disable: !c.LogColor,
Reset: true,
}
return colorize.Color(input)
}
// Parameters defines EKS "cluster" creation parameters.
// It's ok to leave any parameters empty.
// If empty, it will use default values.
type Parameters struct {
// RoleName is the name of cluster role.
RoleName string `json:"role-name"`
// RoleCreate is true to auto-create and delete cluster role.
RoleCreate bool `json:"role-create"`
// RoleARN is the role ARN that EKS uses to create AWS resources for Kubernetes.
// By default, it's empty which triggers tester to create one.
RoleARN string `json:"role-arn"`
// RoleServicePrincipals is the EKS Role Service Principals
RoleServicePrincipals []string `json:"role-service-principals"`
// RoleManagedPolicyARNs is EKS Role managed policy ARNs.
RoleManagedPolicyARNs []string `json:"role-managed-policy-arns"`
RoleCFNStackID string `json:"role-cfn-stack-id" read-only:"true"`
RoleCFNStackYAMLPath string `json:"role-cfn-stack-yaml-path" read-only:"true"`
RoleCFNStackYAMLS3Key string `json:"role-cfn-stack-yaml-s3-key" read-only:"true"`
// Tags defines EKS create cluster tags.
Tags map[string]string `json:"tags"`
// RequestHeaderKey defines EKS create cluster request header key.
RequestHeaderKey string `json:"request-header-key"`
// RequestHeaderValue defines EKS create cluster request header value.
RequestHeaderValue string `json:"request-header-value"`
// ResolverURL defines an AWS resolver endpoint for EKS API.
// Must be left empty to use production EKS service.
ResolverURL string `json:"resolver-url"`
// SigningName is the EKS create request signing name.
SigningName string `json:"signing-name"`
// VPCCreate is true to auto-create and delete VPC.
VPCCreate bool `json:"vpc-create"`
// VPCID is the VPC ID for cluster creation.
// If not empty, VPC is reused and not deleted.
// If empty, VPC is created anew and deleted on cluster deletion.
VPCID string `json:"vpc-id"`
VPCCFNStackID string `json:"vpc-cfn-stack-id" read-only:"true"`
VPCCFNStackYAMLPath string `json:"vpc-cfn-stack-yaml-path" read-only:"true"`
VPCCFNStackYAMLS3Key string `json:"vpc-cfn-stack-yaml-s3-key" read-only:"true"`
// VpcBlock1 is the IP range (CIDR notation) for the primary VPC Block, must be a valid private
// (RFC 1918) CIDR range.
VPCBlock1 string `json:"vpc-cidr-block1,omitempty"`
// VpcBlock2 is the IP range (CIDR notation) for the secondary VPC Block, must be a valid private
// (RFC 1918) CIDR range.
VPCBlock2 string `json:"vpc-cidr-block2,omitempty"`
// VpcBlock3 is the IP range (CIDR notation) for the secondary VPC Block, must be a valid private
// (RFC 1918) CIDR range.
VPCBlock3 string `json:"vpc-cidr-block3,omitempty"`
// VpcBlock4 is the IP range (CIDR notation) for the secondary VPC Block, must be a valid private
// (RFC 1918) CIDR range.
VPCBlock4 string `json:"vpc-cidr-block4,omitempty"`
// PublicSubnetCIDR1 is the CIDR Block for subnet 1 within the VPC.
PublicSubnetCIDR1 string `json:"public-subnet-cidr-1,omitempty"`
// PublicSubnetCIDR2 is the CIDR Block for subnet 2 within the VPC.
PublicSubnetCIDR2 string `json:"public-subnet-cidr-2,omitempty"`
// PublicSubnetCIDR3 is the CIDR Block for subnet 3 within the VPC.
PublicSubnetCIDR3 string `json:"public-subnet-cidr-3,omitempty"`
// PrivateSubnetCIDR1 is the CIDR Block for subnet 1 within the VPC.
PrivateSubnetCIDR1 string `json:"private-subnet-cidr-1,omitempty"`
// PrivateSubnetCIDR2 is the CIDR Block for subnet 2 within the VPC.
PrivateSubnetCIDR2 string `json:"private-subnet-cidr-2,omitempty"`
// PublicSubnetIDs is the list of all public subnets in the VPC.
PublicSubnetIDs []string `json:"public-subnet-ids" read-only:"true"`
// PrivateSubnetIDs is the list of all private subnets in the VPC.
PrivateSubnetIDs []string `json:"private-subnet-ids" read-only:"true"`
// DHCPOptionsDomainName is used to complete unqualified DNS hostnames for VPC.
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-dhcp-options.html
// ref. https://docs.aws.amazon.com/eks/latest/userguide/cluster-endpoint.html
DHCPOptionsDomainName string `json:"dhcp-options-domain-name"`
// DHCPOptionsDomainNameServers is a list of strings.
// The IPv4 addresses of up to four domain name servers, or AmazonProvidedDNS, for VPC.
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-dhcp-options.html
// ref. https://docs.aws.amazon.com/eks/latest/userguide/cluster-endpoint.html
DHCPOptionsDomainNameServers []string `json:"dhcp-options-domain-name-servers"`
// Version is the version of EKS Kubernetes "cluster".
// If empty, set default version.
Version string `json:"version"`
VersionValue float64 `json:"version-value" read-only:"true"`
// EncryptionCMKCreate is true to auto-create and delete KMS CMK
// for encryption feature.
EncryptionCMKCreate bool `json:"encryption-cmk-create"`
// EncryptionCMKARN is the KMS CMK ARN for encryption feature.
// If not empty, the cluster is created with encryption feature
// enabled.
EncryptionCMKARN string `json:"encryption-cmk-arn"`
}
func getDefaultParameters() *Parameters {
return &Parameters{
RoleCreate: true,
VPCCreate: true,
VPCBlock1: "10.0.0.0/16",
VPCBlock2: "10.1.0.0/16",
VPCBlock3: "10.2.0.0/16",
VPCBlock4: "10.3.0.0/16",
PublicSubnetCIDR1: "10.0.0.0/16",
PublicSubnetCIDR2: "10.1.0.0/16",
PublicSubnetCIDR3: "10.2.0.0/16",
PrivateSubnetCIDR1: "10.3.0.0/17",
PrivateSubnetCIDR2: "10.3.128.0/17",
SigningName: "eks",
Version: "1.18",
EncryptionCMKCreate: 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, yaml.DisallowUnknownFields); 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.
// Every call overwrites the previous contents if any.
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,
LogColorOverride: false,
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-v1.18.9",
KubectlDownloadURL: "https://storage.googleapis.com/kubernetes-release/release/v1.18.9/bin/linux/amd64/kubectl",
OnFailureDelete: true,
OnFailureDeleteWaitSeconds: 120,
S3BucketName: "",
S3BucketCreate: true,
S3BucketCreateKeep: true,
S3BucketLifecycleExpirationDays: 0,
CWNamespace: "aws-k8s-tester-eks",
SkipDeleteClusterAndNodes: false,
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"),
RemoteAccessPrivateKeyPath: filepath.Join(os.TempDir(), randutil.String(15)+".insecure.key"),
// 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,
AddOnCNIVPC: getDefaultAddOnCNIVPC(),
AddOnNodeGroups: getDefaultAddOnNodeGroups(name),
AddOnManagedNodeGroups: getDefaultAddOnManagedNodeGroups(name),
AddOnCWAgent: getDefaultAddOnCWAgent(),
AddOnFluentd: getDefaultAddOnFluentd(),
AddOnMetricsServer: getDefaultAddOnMetricsServer(),
AddOnConformance: getDefaultAddOnConformance(),
AddOnAppMesh: getDefaultAddOnAppMesh(),
AddOnCSIEBS: getDefaultAddOnCSIEBS(),
AddOnKubernetesDashboard: getDefaultAddOnKubernetesDashboard(),
AddOnPrometheusGrafana: getDefaultAddOnPrometheusGrafana(),
AddOnPHPApache: getDefaultAddOnPHPApache(),
AddOnNLBHelloWorld: getDefaultAddOnNLBHelloWorld(),
AddOnNLBGuestbook: getDefaultAddOnNLBGuestbook(),
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(),
AddOnClusterLoaderLocal: getDefaultAddOnClusterLoaderLocal(),
AddOnClusterLoaderRemote: getDefaultAddOnClusterLoaderRemote(),
AddOnHollowNodesLocal: getDefaultAddOnHollowNodesLocal(),
AddOnHollowNodesRemote: getDefaultAddOnHollowNodesRemote(),
AddOnStresserLocal: getDefaultAddOnStresserLocal(),
AddOnStresserRemote: getDefaultAddOnStresserRemote(),
AddOnClusterVersionUpgrade: getDefaultAddOnClusterVersionUpgrade(),
// read-only
Status: &Status{
Up: false,
PrivateDNSToNodeInfo: make(map[string]NodeInfo),
},
}
// 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); required for 'aws eks update-kubeconfig'", err))
}
if runtime.GOOS == "darwin" {
cfg.KubectlDownloadURL = strings.Replace(cfg.KubectlDownloadURL, "linux", "darwin", -1)
}
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()
}()
// Generically defaults and validates addons that are members of cfg.Spec
spec := reflect.ValueOf(cfg.Spec)
for i := 0; i < spec.NumField(); i++ {
// Skip if the field does not implement Addon or is Nil
if addon, ok := spec.Field(i).Interface().(Addon); ok && !reflect.ValueOf(addon).IsNil() {
addon.Default(cfg)
if err := addon.Validate(cfg); err != nil {
return fmt.Errorf("Failed to validate %s, %v", reflect.ValueOf(addon).Type(), err)
}
}
}
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)
}
if err := cfg.validateAddOnCNIVPC(); err != nil {
return fmt.Errorf("validateAddOnCNIVPC 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
totalHollowNodes := int64(0)
if cfg.IsEnabledAddOnHollowNodesLocal() {
totalHollowNodes += int64(cfg.AddOnHollowNodesLocal.Nodes)
}
if cfg.IsEnabledAddOnHollowNodesRemote() {
totalHollowNodes += int64(cfg.AddOnHollowNodesRemote.Nodes) * int64(cfg.AddOnHollowNodesRemote.NodeGroups)
}
cfg.TotalHollowNodes = totalHollowNodes
if err := cfg.validateAddOnCWAgent(); err != nil {
return fmt.Errorf("validateAddOnCWAgent failed [%v]", err)
}
if err := cfg.validateAddOnFluentd(); err != nil {
return fmt.Errorf("validateAddOnFluentd failed [%v]", err)
}
if err := cfg.validateAddOnMetricsServer(); err != nil {
return fmt.Errorf("validateAddOnMetricsServer failed [%v]", err)
}
if err := cfg.validateAddOnConformance(); err != nil {
return fmt.Errorf("validateAddOnConformance failed [%v]", err)
}
if err := cfg.validateAddOnAppMesh(); err != nil {
return fmt.Errorf("validateAddOnAppMesh failed [%v]", err)
}
if err := cfg.validateAddOnCSIEBS(); err != nil {
return fmt.Errorf("validateAddOnCSIEBS 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.validateAddOnPHPApache(); err != nil {
return fmt.Errorf("validateAddOnPHPApache failed [%v]", err)
}
if err := cfg.validateAddOnNLBHelloWorld(); err != nil {
return fmt.Errorf("validateAddOnNLBHelloWorld failed [%v]", err)
}
if err := cfg.validateAddOnNLBGuestbook(); err != nil {
return fmt.Errorf("validateAddOnNLBGuestbook 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)
}