kubernetes plan_test 源码
kubernetes plan_test 代码
文件路径：/cmd/kubeadm/app/cmd/upgrade/plan_test.go
/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package upgrade
import (
"bytes"
"reflect"
"testing"
"k8s.io/kubernetes/cmd/kubeadm/app/phases/upgrade"
"k8s.io/kubernetes/cmd/kubeadm/app/util/output"
)
func TestSortedSliceFromStringIntMap(t *testing.T) {
var tests = []struct {
name string
strMap map[string]uint16
expectedSlice []string
}{
{
name: "the returned slice should be alphabetically sorted based on the string keys in the map",
strMap: map[string]uint16{"foo": 1, "bar": 2},
expectedSlice: []string{"bar", "foo"},
},
{
name: "the int value should not affect this func",
strMap: map[string]uint16{"foo": 2, "bar": 1},
expectedSlice: []string{"bar", "foo"},
},
{
name: "slice with 4 keys and different values",
strMap: map[string]uint16{"b": 2, "a": 1, "cb": 0, "ca": 1000},
expectedSlice: []string{"a", "b", "ca", "cb"},
},
{
name: "this should work for version numbers as well; and the lowest version should come first",
strMap: map[string]uint16{"v1.7.0": 1, "v1.6.1": 1, "v1.6.2": 1, "v1.8.0": 1, "v1.8.0-alpha.1": 1},
expectedSlice: []string{"v1.6.1", "v1.6.2", "v1.7.0", "v1.8.0", "v1.8.0-alpha.1"},
},
}
for _, rt := range tests {
t.Run(rt.name, func(t *testing.T) {
actualSlice := sortedSliceFromStringIntMap(rt.strMap)
if !reflect.DeepEqual(actualSlice, rt.expectedSlice) {
t.Errorf(
"failed SortedSliceFromStringIntMap:\n\texpected: %v\n\t actual: %v",
rt.expectedSlice,
actualSlice,
)
}
})
}
}
// TODO Think about modifying this test to be less verbose checking b/c it can be brittle.
func TestPrintAvailableUpgrades(t *testing.T) {
var tests = []struct {
name string
upgrades []upgrade.Upgrade
buf *bytes.Buffer
expectedBytes []byte
externalEtcd bool
}{
{
name: "Patch version available",
upgrades: []upgrade.Upgrade{
{
Description: "version in the v1.18 series",
Before: upgrade.ClusterState{
KubeVersion: "v1.18.1",
KubeletVersions: map[string]uint16{
"v1.18.1": 1,
},
KubeadmVersion: "v1.18.1",
DNSVersion: "1.6.7",
EtcdVersion: "3.4.3-0",
},
After: upgrade.ClusterState{
KubeVersion: "v1.18.4",
KubeadmVersion: "v1.18.4",
DNSVersion: "1.6.7",
EtcdVersion: "3.4.3-0",
},
},
},
expectedBytes: []byte(`Components that must be upgraded manually after you have upgraded the control plane with 'kubeadm upgrade apply':
COMPONENT CURRENT TARGET
kubelet 1 x v1.18.1 v1.18.4
Upgrade to the latest version in the v1.18 series:
COMPONENT CURRENT TARGET
kube-apiserver v1.18.1 v1.18.4
kube-controller-manager v1.18.1 v1.18.4
kube-scheduler v1.18.1 v1.18.4
kube-proxy v1.18.1 v1.18.4
CoreDNS 1.6.7 1.6.7
etcd 3.4.3-0 3.4.3-0
You can now apply the upgrade by executing the following command:
kubeadm upgrade apply v1.18.4
Note: Before you can perform this upgrade, you have to update kubeadm to v1.18.4.
_____________________________________________________________________
`),
},
{
name: "minor version available",
upgrades: []upgrade.Upgrade{
{
Description: "stable version",
Before: upgrade.ClusterState{
KubeVersion: "v1.18.4",
KubeletVersions: map[string]uint16{
"v1.18.4": 1,
},
KubeadmVersion: "v1.18.4",
DNSVersion: "1.6.7",
EtcdVersion: "3.4.3-0",
},
After: upgrade.ClusterState{
KubeVersion: "v1.19.0",
KubeadmVersion: "v1.19.0",
DNSVersion: "1.7.0",
EtcdVersion: "3.4.7-0",
},
},
},
expectedBytes: []byte(`Components that must be upgraded manually after you have upgraded the control plane with 'kubeadm upgrade apply':
COMPONENT CURRENT TARGET
kubelet 1 x v1.18.4 v1.19.0
Upgrade to the latest stable version:
COMPONENT CURRENT TARGET
kube-apiserver v1.18.4 v1.19.0
kube-controller-manager v1.18.4 v1.19.0
kube-scheduler v1.18.4 v1.19.0
kube-proxy v1.18.4 v1.19.0
CoreDNS 1.6.7 1.7.0
etcd 3.4.3-0 3.4.7-0
You can now apply the upgrade by executing the following command:
kubeadm upgrade apply v1.19.0
Note: Before you can perform this upgrade, you have to update kubeadm to v1.19.0.
_____________________________________________________________________
`),
},
{
name: "patch and minor version available",
upgrades: []upgrade.Upgrade{
{
Description: "version in the v1.18 series",
Before: upgrade.ClusterState{
KubeVersion: "v1.18.3",
KubeletVersions: map[string]uint16{
"v1.18.3": 1,
},
KubeadmVersion: "v1.18.3",
DNSVersion: "1.6.7",
EtcdVersion: "3.4.3-0",
},
After: upgrade.ClusterState{
KubeVersion: "v1.18.5",
KubeadmVersion: "v1.18.3",
DNSVersion: "1.6.7",
EtcdVersion: "3.4.3-0",
},
},
{
Description: "stable version",
Before: upgrade.ClusterState{
KubeVersion: "v1.18.3",
KubeletVersions: map[string]uint16{
"v1.18.3": 1,
},
KubeadmVersion: "v1.18.3",
DNSVersion: "1.6.7",
EtcdVersion: "3.4.3-0",
},
After: upgrade.ClusterState{
KubeVersion: "v1.19.0",
KubeadmVersion: "v1.19.0",
DNSVersion: "1.7.0",
EtcdVersion: "3.4.7-0",
},
},
},
expectedBytes: []byte(`Components that must be upgraded manually after you have upgraded the control plane with 'kubeadm upgrade apply':
COMPONENT CURRENT TARGET
kubelet 1 x v1.18.3 v1.18.5
Upgrade to the latest version in the v1.18 series:
COMPONENT CURRENT TARGET
kube-apiserver v1.18.3 v1.18.5
kube-controller-manager v1.18.3 v1.18.5
kube-scheduler v1.18.3 v1.18.5
kube-proxy v1.18.3 v1.18.5
CoreDNS 1.6.7 1.6.7
etcd 3.4.3-0 3.4.3-0
You can now apply the upgrade by executing the following command:
kubeadm upgrade apply v1.18.5
_____________________________________________________________________
Components that must be upgraded manually after you have upgraded the control plane with 'kubeadm upgrade apply':
COMPONENT CURRENT TARGET
kubelet 1 x v1.18.3 v1.19.0
Upgrade to the latest stable version:
COMPONENT CURRENT TARGET
kube-apiserver v1.18.3 v1.19.0
kube-controller-manager v1.18.3 v1.19.0
kube-scheduler v1.18.3 v1.19.0
kube-proxy v1.18.3 v1.19.0
CoreDNS 1.6.7 1.7.0
etcd 3.4.3-0 3.4.7-0
You can now apply the upgrade by executing the following command:
kubeadm upgrade apply v1.19.0
Note: Before you can perform this upgrade, you have to update kubeadm to v1.19.0.
_____________________________________________________________________
`),
},
{
name: "experimental version available",
upgrades: []upgrade.Upgrade{
{
Description: "experimental version",
Before: upgrade.ClusterState{
KubeVersion: "v1.18.5",
KubeletVersions: map[string]uint16{
"v1.18.5": 1,
},
KubeadmVersion: "v1.18.5",
DNSVersion: "1.6.7",
EtcdVersion: "3.4.3-0",
},
After: upgrade.ClusterState{
KubeVersion: "v1.19.0-beta.1",
KubeadmVersion: "v1.19.0-beta.1",
DNSVersion: "1.7.0",
EtcdVersion: "3.4.7-0",
},
},
},
expectedBytes: []byte(`Components that must be upgraded manually after you have upgraded the control plane with 'kubeadm upgrade apply':
COMPONENT CURRENT TARGET
kubelet 1 x v1.18.5 v1.19.0-beta.1
Upgrade to the latest experimental version:
COMPONENT CURRENT TARGET
kube-apiserver v1.18.5 v1.19.0-beta.1
kube-controller-manager v1.18.5 v1.19.0-beta.1
kube-scheduler v1.18.5 v1.19.0-beta.1
kube-proxy v1.18.5 v1.19.0-beta.1
CoreDNS 1.6.7 1.7.0
etcd 3.4.3-0 3.4.7-0
You can now apply the upgrade by executing the following command:
kubeadm upgrade apply v1.19.0-beta.1 --allow-experimental-upgrades
Note: Before you can perform this upgrade, you have to update kubeadm to v1.19.0-beta.1.
_____________________________________________________________________
`),
},
{
name: "release candidate available",
upgrades: []upgrade.Upgrade{
{
Description: "release candidate version",
Before: upgrade.ClusterState{
KubeVersion: "v1.18.5",
KubeletVersions: map[string]uint16{
"v1.18.5": 1,
},
KubeadmVersion: "v1.18.5",
DNSVersion: "1.6.7",
EtcdVersion: "3.4.3-0",
},
After: upgrade.ClusterState{
KubeVersion: "v1.19.0-rc.1",
KubeadmVersion: "v1.19.0-rc.1",
DNSVersion: "1.7.0",
EtcdVersion: "3.4.7-0",
},
},
},
expectedBytes: []byte(`Components that must be upgraded manually after you have upgraded the control plane with 'kubeadm upgrade apply':
COMPONENT CURRENT TARGET
kubelet 1 x v1.18.5 v1.19.0-rc.1
Upgrade to the latest release candidate version:
COMPONENT CURRENT TARGET
kube-apiserver v1.18.5 v1.19.0-rc.1
kube-controller-manager v1.18.5 v1.19.0-rc.1
kube-scheduler v1.18.5 v1.19.0-rc.1
kube-proxy v1.18.5 v1.19.0-rc.1
CoreDNS 1.6.7 1.7.0
etcd 3.4.3-0 3.4.7-0
You can now apply the upgrade by executing the following command:
kubeadm upgrade apply v1.19.0-rc.1 --allow-release-candidate-upgrades
Note: Before you can perform this upgrade, you have to update kubeadm to v1.19.0-rc.1.
_____________________________________________________________________
`),
},
{
name: "multiple kubelet versions",
upgrades: []upgrade.Upgrade{
{
Description: "version in the v1.19 series",
Before: upgrade.ClusterState{
KubeVersion: "v1.19.2",
KubeletVersions: map[string]uint16{
"v1.19.2": 1,
"v1.19.3": 2,
},
KubeadmVersion: "v1.19.2",
DNSVersion: "1.7.0",
EtcdVersion: "3.4.7-0",
},
After: upgrade.ClusterState{
KubeVersion: "v1.19.3",
KubeadmVersion: "v1.19.3",
DNSVersion: "1.7.0",
EtcdVersion: "3.4.7-0",
},
},
},
expectedBytes: []byte(`Components that must be upgraded manually after you have upgraded the control plane with 'kubeadm upgrade apply':
COMPONENT CURRENT TARGET
kubelet 1 x v1.19.2 v1.19.3
2 x v1.19.3 v1.19.3
Upgrade to the latest version in the v1.19 series:
COMPONENT CURRENT TARGET
kube-apiserver v1.19.2 v1.19.3
kube-controller-manager v1.19.2 v1.19.3
kube-scheduler v1.19.2 v1.19.3
kube-proxy v1.19.2 v1.19.3
CoreDNS 1.7.0 1.7.0
etcd 3.4.7-0 3.4.7-0
You can now apply the upgrade by executing the following command:
kubeadm upgrade apply v1.19.3
Note: Before you can perform this upgrade, you have to update kubeadm to v1.19.3.
_____________________________________________________________________
`),
},
{
name: "external etcd upgrade available",
upgrades: []upgrade.Upgrade{
{
Description: "version in the v1.19 series",
Before: upgrade.ClusterState{
KubeVersion: "v1.19.2",
KubeletVersions: map[string]uint16{
"v1.19.2": 1,
},
KubeadmVersion: "v1.19.2",
DNSVersion: "1.7.0",
EtcdVersion: "3.4.7-0",
},
After: upgrade.ClusterState{
KubeVersion: "v1.19.3",
KubeadmVersion: "v1.19.3",
DNSVersion: "1.7.0",
EtcdVersion: "3.4.7-0",
},
},
},
externalEtcd: true,
expectedBytes: []byte(`Components that must be upgraded manually after you have upgraded the control plane with 'kubeadm upgrade apply':
COMPONENT CURRENT TARGET
kubelet 1 x v1.19.2 v1.19.3
Upgrade to the latest version in the v1.19 series:
COMPONENT CURRENT TARGET
kube-apiserver v1.19.2 v1.19.3
kube-controller-manager v1.19.2 v1.19.3
kube-scheduler v1.19.2 v1.19.3
kube-proxy v1.19.2 v1.19.3
CoreDNS 1.7.0 1.7.0
You can now apply the upgrade by executing the following command:
kubeadm upgrade apply v1.19.3
Note: Before you can perform this upgrade, you have to update kubeadm to v1.19.3.
_____________________________________________________________________
`),
},
}
for _, rt := range tests {
t.Run(rt.name, func(t *testing.T) {
rt.buf = bytes.NewBufferString("")
outputFlags := newUpgradePlanPrintFlags(output.TextOutput)
printer, err := outputFlags.ToPrinter()
if err != nil {
t.Errorf("failed ToPrinter, err: %+v", err)
}
// Generate and print upgrade plans
for _, up := range rt.upgrades {
plan, unstableVersionFlag, err := genUpgradePlan(&up, rt.externalEtcd)
if err != nil {
t.Errorf("failed genUpgradePlan, err: %+v", err)
}
printUpgradePlan(&up, plan, unstableVersionFlag, rt.externalEtcd, rt.buf, printer)
}
actualBytes := rt.buf.Bytes()
if !bytes.Equal(actualBytes, rt.expectedBytes) {
t.Errorf(
"failed PrintAvailableUpgrades:\n\texpected: %q\n\n\tactual : %q",
string(rt.expectedBytes),
string(actualBytes),
)
}
})
}
}
func TestPrintAvailableUpgradesStructured(t *testing.T) {
upgrades := []upgrade.Upgrade{
{
Description: "version in the v1.8 series",
Before: upgrade.ClusterState{
KubeVersion: "v1.8.1",
KubeletVersions: map[string]uint16{
"v1.8.1": 1,
},
KubeadmVersion: "v1.8.2",
DNSVersion: "1.14.5",
EtcdVersion: "3.0.17",
},
After: upgrade.ClusterState{
KubeVersion: "v1.8.3",
KubeadmVersion: "v1.8.3",
DNSVersion: "1.14.5",
EtcdVersion: "3.0.17",
},
},
}
var tests = []struct {
name string
outputFormat string
buf *bytes.Buffer
expected string
externalEtcd bool
}{
{
name: "JSON output",
outputFormat: "json",
expected: `{
"kind": "UpgradePlan",
"apiVersion": "output.kubeadm.k8s.io/v1alpha2",
"components": [
{
"name": "kubelet",
"currentVersion": "1 x v1.8.1",
"newVersion": "v1.8.3"
},
{
"name": "kube-apiserver",
"currentVersion": "v1.8.1",
"newVersion": "v1.8.3"
},
{
"name": "kube-controller-manager",
"currentVersion": "v1.8.1",
"newVersion": "v1.8.3"
},
{
"name": "kube-scheduler",
"currentVersion": "v1.8.1",
"newVersion": "v1.8.3"
},
{
"name": "kube-proxy",
"currentVersion": "v1.8.1",
"newVersion": "v1.8.3"
},
{
"name": "CoreDNS",
"currentVersion": "1.14.5",
"newVersion": "1.14.5"
},
{
"name": "etcd",
"currentVersion": "3.0.17",
"newVersion": "3.0.17"
}
],
"configVersions": null
}
`,
},
{
name: "YAML output",
outputFormat: "yaml",
expected: `apiVersion: output.kubeadm.k8s.io/v1alpha2
components:
- currentVersion: 1 x v1.8.1
name: kubelet
newVersion: v1.8.3
- currentVersion: v1.8.1
name: kube-apiserver
newVersion: v1.8.3
- currentVersion: v1.8.1
name: kube-controller-manager
newVersion: v1.8.3
- currentVersion: v1.8.1
name: kube-scheduler
newVersion: v1.8.3
- currentVersion: v1.8.1
name: kube-proxy
newVersion: v1.8.3
- currentVersion: 1.14.5
name: CoreDNS
newVersion: 1.14.5
- currentVersion: 3.0.17
name: etcd
newVersion: 3.0.17
configVersions: null
kind: UpgradePlan
`,
},
{
name: "Text output",
outputFormat: "Text",
expected: `Components that must be upgraded manually after you have upgraded the control plane with 'kubeadm upgrade apply':
COMPONENT CURRENT TARGET
kubelet 1 x v1.8.1 v1.8.3
Upgrade to the latest version in the v1.8 series:
COMPONENT CURRENT TARGET
kube-apiserver v1.8.1 v1.8.3
kube-controller-manager v1.8.1 v1.8.3
kube-scheduler v1.8.1 v1.8.3
kube-proxy v1.8.1 v1.8.3
CoreDNS 1.14.5 1.14.5
etcd 3.0.17 3.0.17
You can now apply the upgrade by executing the following command:
kubeadm upgrade apply v1.8.3
Note: Before you can perform this upgrade, you have to update kubeadm to v1.8.3.
_____________________________________________________________________
`,
},
}
for _, rt := range tests {
t.Run(rt.name, func(t *testing.T) {
rt.buf = bytes.NewBufferString("")
outputFlags := newUpgradePlanPrintFlags(rt.outputFormat)
printer, err := outputFlags.ToPrinter()
if err != nil {
t.Errorf("failed ToPrinter, err: %+v", err)
}
// Generate and print upgrade plans
for _, up := range upgrades {
plan, unstableVersionFlag, err := genUpgradePlan(&up, rt.externalEtcd)
if err != nil {
t.Errorf("failed genUpgradePlan, err: %+v", err)
}
printUpgradePlan(&up, plan, unstableVersionFlag, rt.externalEtcd, rt.buf, printer)
}
actual := rt.buf.String()
if actual != rt.expected {
t.Errorf("failed PrintAvailableUpgrades:\n\nexpected:\n%s\n\nactual:\n%s", rt.expected, actual)
}
})
}
}
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