Drop Kubernetes v1.24 and support Kubernetes v1.27

.github/workflows/e2e-test-darts-cifar10.yaml

@@ -33,6 +33,6 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        kubernetes-version: ["v1.24.16", "v1.25.12", "v1.26.6"]
+        kubernetes-version: ["v1.25.12", "v1.26.6", "v1.27.3"]
         # Comma Delimited
         experiments: ["darts-cpu"]

.github/workflows/e2e-test-enas-cifar10.yaml

@@ -33,6 +33,6 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        kubernetes-version: ["v1.24.16", "v1.25.12", "v1.26.6"]
+        kubernetes-version: ["v1.25.12", "v1.26.6", "v1.27.3"]
         # Comma Delimited
         experiments: ["enas-cpu"]

.github/workflows/e2e-test-mxnet-mnist.yaml

@@ -33,7 +33,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        kubernetes-version: ["v1.24.16", "v1.25.12", "v1.26.6"]
+        kubernetes-version: ["v1.25.12", "v1.26.6", "v1.27.3"]
         # Comma Delimited
         experiments:
           # suggestion-hyperopt

.github/workflows/e2e-test-pytorch-mnist.yaml

@@ -34,7 +34,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        kubernetes-version: ["v1.24.16", "v1.25.12", "v1.26.6"]
+        kubernetes-version: ["v1.25.12", "v1.26.6", "v1.27.3"]
         # Comma Delimited
         experiments:
           - "file-metrics-collector,pytorchjob-mnist"

.github/workflows/e2e-test-simple-pbt.yaml

@@ -33,6 +33,6 @@ jobs:
       fail-fast: false
       matrix:
         # Detail: https://hub.docker.com/r/kindest/node
-        kubernetes-version: ["v1.24.16", "v1.25.12", "v1.26.6"]
+        kubernetes-version: ["v1.25.12", "v1.26.6", "v1.27.3"]
         # Comma Delimited
         experiments: ["simple-pbt"]

.github/workflows/e2e-test-tf-mnist-with-summaries.yaml

@@ -33,6 +33,6 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        kubernetes-version: ["v1.24.16", "v1.25.12", "v1.26.6"]
+        kubernetes-version: ["v1.25.12", "v1.26.6", "v1.27.3"]
         # Comma Delimited
         experiments: ["tfjob-mnist-with-summaries"]

.github/workflows/e2e-test-ui-random-search-postgres.yaml

@@ -32,4 +32,4 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        kubernetes-version: ["v1.24.16", "v1.25.12", "v1.26.6"]
+        kubernetes-version: ["v1.25.12", "v1.26.6", "v1.27.3"]

.github/workflows/test-go.yaml

@@ -64,4 +64,4 @@ jobs:
       fail-fast: false
       matrix:
         # Detail: `setup-envtest list --arch amd64`
-        kubernetes-version: ["1.24.2", "1.25.0", "1.26.1"]
+        kubernetes-version: ["1.25.0", "1.26.1", "1.27.1"]

Makefile

@@ -7,7 +7,7 @@ HAS_MOCKGEN := $(shell command -v mockgen;)
 COMMIT := v1beta1-$(shell git rev-parse --short=7 HEAD)
 KATIB_REGISTRY := docker.io/kubeflowkatib
 CPU_ARCH ?= amd64
-ENVTEST_K8S_VERSION ?= 1.26
+ENVTEST_K8S_VERSION ?= 1.27
 MOCKGEN_VERSION ?= $(shell grep 'github.com/golang/mock' go.mod | cut -d ' ' -f 2)
 GO_VERSION=$(shell grep '^go' go.mod | cut -d ' ' -f 2)
 
@@ -23,7 +23,7 @@ test: envtest
 
 envtest:
 ifndef HAS_SETUP_ENVTEST
-	go install sigs.k8s.io/controller-runtime/tools/setup-envtest@2c3a6fa2996c026b284c7fe2b055274cd9a556bc #v0.14.6
+	go install sigs.k8s.io/controller-runtime/tools/setup-envtest@935faeba70039b5403616e73f109f4b6b1115b9f #v0.15.0
 	$(info "setup-envtest has been installed")
 endif
 	$(info "setup-envtest has already installed")

README.md

@@ -154,8 +154,8 @@ Follow the next steps to install Katib standalone.
 
 This is the minimal requirements to install Katib:
 
-- Kubernetes >= 1.24
-- `kubectl` >= 1.24
+- Kubernetes >= 1.25
+- `kubectl` >= 1.25
 
 ## Latest Version
 

cmd/katib-controller/v1beta1/main.go

@@ -25,6 +25,7 @@ import (
 
 	"github.com/spf13/viper"
 	_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
+	"sigs.k8s.io/controller-runtime/pkg/client/apiutil"
 	"sigs.k8s.io/controller-runtime/pkg/client/config"
 	"sigs.k8s.io/controller-runtime/pkg/healthz"
 	logf "sigs.k8s.io/controller-runtime/pkg/log"
@@ -108,6 +109,10 @@ func main() {
 		HealthProbeBindAddress: healthzAddr,
 		LeaderElection:         enableLeaderElection,
 		LeaderElectionID:       leaderElectionID,
+		// TODO: Once the below issue is resolved, we need to switch discovery-client to the built-in one.
+		// https://github.com/kubernetes-sigs/controller-runtime/issues/2354
+		// https://github.com/kubernetes-sigs/controller-runtime/issues/2424
+		MapperProvider: apiutil.NewDiscoveryRESTMapper,
 	})
 	if err != nil {
 		log.Error(err, "Failed to create the manager")

examples/v1beta1/kind-cluster/README.md

@@ -10,7 +10,7 @@ Install the following tools to run the example:
 
 - [Docker](https://docs.docker.com/get-docker) >= 20.10
 - [Kind](https://kind.sigs.k8s.io/docs/user/quick-start/#installation) >= 0.13
-- [`kubectl`](https://kubernetes.io/docs/tasks/tools/#kubectl) >= 1.24
+- [`kubectl`](https://kubernetes.io/docs/tasks/tools/#kubectl) >= 1.25
 
 ## Installation
 

examples/v1beta1/kind-cluster/deploy.sh

@@ -36,8 +36,8 @@ if [ -z "$(command -v kubectl)" ]; then
   exit 1
 fi
 
-# Step 1. Create Kind cluster with Kubernetes v1.26.6
-kind create cluster --image kindest/node:v1.26.6
+# Step 1. Create Kind cluster with Kubernetes v1.27.3
+kind create cluster --image kindest/node:v1.27.3
 echo -e "\nKind cluster has been created\n"
 
 # Step 2. Set context for kubectl

go.mod

@@ -8,28 +8,29 @@ require (
 	github.com/c-bata/goptuna v0.8.0
 	github.com/go-sql-driver/mysql v1.5.0
 	github.com/golang/mock v1.6.0
-	github.com/golang/protobuf v1.5.2
+	github.com/golang/protobuf v1.5.3
 	github.com/google/go-containerregistry v0.9.0
 	github.com/google/go-containerregistry/pkg/authn/k8schain v0.0.0-20211222182933-7c19fa370dbd
 	github.com/grpc-ecosystem/go-grpc-middleware v1.3.0
 	github.com/hpcloud/tail v1.0.1-0.20180514194441-a1dbeea552b7
 	github.com/lib/pq v1.10.6
 	github.com/mattbaird/jsonpatch v0.0.0-20171005235357-81af80346b1a
-	github.com/onsi/gomega v1.24.1
-	github.com/prometheus/client_golang v1.14.0
+	github.com/onsi/gomega v1.27.7
+	github.com/prometheus/client_golang v1.15.1
 	github.com/shirou/gopsutil/v3 v3.22.5
 	github.com/spf13/cobra v1.6.0
 	github.com/spf13/viper v1.9.0
 	github.com/tidwall/gjson v1.14.1
-	golang.org/x/net v0.8.0
+	golang.org/x/net v0.10.0
 	google.golang.org/grpc v1.53.0
-	k8s.io/api v0.26.7
-	k8s.io/apimachinery v0.26.7
-	k8s.io/client-go v0.26.7
-	k8s.io/code-generator v0.26.7
+	k8s.io/api v0.27.4
+	k8s.io/apimachinery v0.27.4
+	k8s.io/client-go v0.27.4
+	k8s.io/code-generator v0.27.4
 	k8s.io/klog v1.0.0
-	k8s.io/kube-openapi v0.0.0-20221012153701-172d655c2280
-	sigs.k8s.io/controller-runtime v0.14.6
+	k8s.io/kube-openapi v0.0.0-20230501164219-8b0f38b5fd1f
+	sigs.k8s.io/controller-runtime v0.15.0
+	sigs.k8s.io/structured-merge-diff/v4 v4.2.3
 )
 
 require (
@@ -54,14 +55,14 @@ require (
 	github.com/evanphx/json-patch v4.12.0+incompatible // indirect
 	github.com/evanphx/json-patch/v5 v5.6.0 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
-	github.com/go-logr/logr v1.2.3 // indirect
-	github.com/go-logr/zapr v1.2.3 // indirect
+	github.com/go-logr/logr v1.2.4 // indirect
+	github.com/go-logr/zapr v1.2.4 // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
-	github.com/go-openapi/jsonpointer v0.19.5 // indirect
-	github.com/go-openapi/jsonreference v0.20.0 // indirect
-	github.com/go-openapi/swag v0.19.14 // indirect
+	github.com/go-openapi/jsonpointer v0.19.6 // indirect
+	github.com/go-openapi/jsonreference v0.20.1 // indirect
+	github.com/go-openapi/swag v0.22.3 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/golang-jwt/jwt/v4 v4.2.0 // indirect
+	github.com/golang-jwt/jwt/v4 v4.4.2 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/google/gnostic v0.5.7-v3refs // indirect
 	github.com/google/go-cmp v0.5.9 // indirect
@@ -76,7 +77,7 @@ require (
 	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
 	github.com/magiconair/properties v1.8.5 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.2 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
 	github.com/mitchellh/mapstructure v1.4.2 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
@@ -87,10 +88,10 @@ require (
 	github.com/pelletier/go-toml v1.9.4 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
-	github.com/prometheus/client_model v0.3.0 // indirect
-	github.com/prometheus/common v0.37.0 // indirect
-	github.com/prometheus/procfs v0.8.0 // indirect
-	github.com/sirupsen/logrus v1.8.1 // indirect
+	github.com/prometheus/client_model v0.4.0 // indirect
+	github.com/prometheus/common v0.42.0 // indirect
+	github.com/prometheus/procfs v0.9.0 // indirect
+	github.com/sirupsen/logrus v1.9.0 // indirect
 	github.com/spf13/afero v1.6.0 // indirect
 	github.com/spf13/cast v1.4.1 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
@@ -106,34 +107,33 @@ require (
 	go.uber.org/multierr v1.6.0 // indirect
 	go.uber.org/zap v1.24.0 // indirect
 	golang.org/x/crypto v0.1.0 // indirect
-	golang.org/x/mod v0.9.0 // indirect
-	golang.org/x/oauth2 v0.4.0 // indirect
-	golang.org/x/sync v0.1.0 // indirect
-	golang.org/x/sys v0.6.0 // indirect
-	golang.org/x/term v0.6.0 // indirect
-	golang.org/x/text v0.8.0 // indirect
+	golang.org/x/mod v0.10.0 // indirect
+	golang.org/x/oauth2 v0.5.0 // indirect
+	golang.org/x/sync v0.2.0 // indirect
+	golang.org/x/sys v0.8.0 // indirect
+	golang.org/x/term v0.8.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
-	golang.org/x/tools v0.6.0 // indirect
-	gomodules.xyz/jsonpatch/v2 v2.2.0 // indirect
+	golang.org/x/tools v0.9.1 // indirect
+	gomodules.xyz/jsonpatch/v2 v2.3.0 // indirect
 	gonum.org/v1/gonum v0.8.2 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
 	google.golang.org/genproto v0.0.0-20230110181048-76db0878b65f // indirect
-	google.golang.org/protobuf v1.28.1 // indirect
+	google.golang.org/protobuf v1.30.0 // indirect
 	gopkg.in/fsnotify/fsnotify.v1 v1.4.7 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/ini.v1 v1.63.2 // indirect
 	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	gotest.tools/v3 v3.1.0 // indirect
-	k8s.io/apiextensions-apiserver v0.26.1 // indirect
+	k8s.io/apiextensions-apiserver v0.27.2 // indirect
 	k8s.io/cloud-provider v0.21.0 // indirect
-	k8s.io/component-base v0.26.1 // indirect
+	k8s.io/component-base v0.27.2 // indirect
 	k8s.io/gengo v0.0.0-20220902162205-c0856e24416d // indirect
-	k8s.io/klog/v2 v2.80.1 // indirect
+	k8s.io/klog/v2 v2.90.1 // indirect
 	k8s.io/legacy-cloud-providers v0.21.0 // indirect
-	k8s.io/utils v0.0.0-20221128185143-99ec85e7a448 // indirect
-	sigs.k8s.io/json v0.0.0-20220713155537-f223a00ba0e2 // indirect
-	sigs.k8s.io/structured-merge-diff/v4 v4.2.3 // indirect
+	k8s.io/utils v0.0.0-20230209194617-a36077c30491 // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
 	sigs.k8s.io/yaml v1.3.0 // indirect
 )