-
Notifications
You must be signed in to change notification settings - Fork 1.3k
/
template.go
190 lines (172 loc) · 5.99 KB
/
template.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
/*
Copyright 2020 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 kubernetesversions
import (
"errors"
"io/ioutil"
"os"
"os/exec"
"path"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
cabpkv1 "sigs.k8s.io/cluster-api/bootstrap/kubeadm/api/v1alpha3"
kcpv1 "sigs.k8s.io/cluster-api/controlplane/kubeadm/api/v1alpha3"
"sigs.k8s.io/cluster-api/test/framework"
"sigs.k8s.io/yaml"
)
type GenerateCIArtifactsInjectedTemplateForDebianInput struct {
// ArtifactsDirectory is where conformance suite output will go. Defaults to _artifacts
ArtifactsDirectory string
// SourceTemplate is an input YAML clusterctl template which is to have
// the CI artifact script injection
SourceTemplate []byte
// PlatformKustomization is an SMP (strategic-merge-style) patch for adding
// platform specific kustomizations required for use with CI, such as
// referencing a specific image
PlatformKustomization []byte
// KubeadmConfigTemplateName is the name of the KubeadmConfigTemplate resource
// that needs to have the Debian install script injected. Defaults to "${CLUSTER_NAME}-md-0".
KubeadmConfigTemplateName string
// KubeadmControlPlaneName is the name of the KubeadmControlPlane resource
// that needs to have the Debian install script injected. Defaults to "${CLUSTER_NAME}-control-plane".
KubeadmControlPlaneName string
}
// GenerateCIArtifactsInjectedTemplateForDebian takes a source clusterctl template
// and a platform-specific Kustomize SMP patch and injects a bash script to download
// and install the debian packages for the given Kubernetes version, returning the
// location of the outputted file.
func GenerateCIArtifactsInjectedTemplateForDebian(input GenerateCIArtifactsInjectedTemplateForDebianInput) (string, error) {
if input.SourceTemplate == nil {
return "", errors.New("SourceTemplate must be provided")
}
input.ArtifactsDirectory = framework.ResolveArtifactsDirectory(input.ArtifactsDirectory)
if input.KubeadmConfigTemplateName == "" {
input.KubeadmConfigTemplateName = "${CLUSTER_NAME}-md-0"
}
if input.KubeadmControlPlaneName == "" {
input.KubeadmControlPlaneName = "${CLUSTER_NAME}-control-plane"
}
templateDir := path.Join(input.ArtifactsDirectory, "templates")
overlayDir := path.Join(input.ArtifactsDirectory, "overlay")
if err := os.MkdirAll(templateDir, 0o750); err != nil {
return "", err
}
if err := os.MkdirAll(overlayDir, 0o750); err != nil {
return "", err
}
kustomizedTemplate := path.Join(templateDir, "cluster-template-conformance-ci-artifacts.yaml")
kustomization, err := dataKustomizationYamlBytes()
if err != nil {
return "", err
}
if err := ioutil.WriteFile(path.Join(overlayDir, "kustomization.yaml"), kustomization, 0o600); err != nil {
return "", err
}
kustomizeVersions, err := generateKustomizeVersionsYaml(input.KubeadmControlPlaneName, input.KubeadmConfigTemplateName)
if err != nil {
return "", err
}
if err := ioutil.WriteFile(path.Join(overlayDir, "kustomizeversions.yaml"), kustomizeVersions, 0o600); err != nil {
return "", err
}
if err := ioutil.WriteFile(path.Join(overlayDir, "ci-artifacts-source-template.yaml"), input.SourceTemplate, 0o600); err != nil {
return "", err
}
if err := ioutil.WriteFile(path.Join(overlayDir, "platform-kustomization.yaml"), input.PlatformKustomization, 0o600); err != nil {
return "", err
}
cmd := exec.Command("kustomize", "build", overlayDir)
data, err := cmd.CombinedOutput()
if err != nil {
return "", err
}
if err := ioutil.WriteFile(kustomizedTemplate, data, 0o600); err != nil {
return "", err
}
return kustomizedTemplate, nil
}
func generateKustomizeVersionsYaml(kcpName, kubeadmName string) ([]byte, error) {
kcp, err := generateKubeadmControlPlane(kcpName)
if err != nil {
return nil, err
}
kubeadm, err := generateKubeadmConfigTemplate(kubeadmName)
if err != nil {
return nil, err
}
kcpYaml, err := yaml.Marshal(kcp)
if err != nil {
return nil, err
}
kubeadmYaml, err := yaml.Marshal(kubeadm)
if err != nil {
return nil, err
}
fileStr := string(kcpYaml) + "\n---\n" + string(kubeadmYaml)
return []byte(fileStr), nil
}
func generateKubeadmConfigTemplate(name string) (*cabpkv1.KubeadmConfigTemplate, error) {
kubeadmSpec, err := generateKubeadmConfigSpec()
if err != nil {
return nil, err
}
return &cabpkv1.KubeadmConfigTemplate{
TypeMeta: metav1.TypeMeta{
Kind: "KubeadmConfigTemplate",
APIVersion: cabpkv1.GroupVersion.String(),
},
ObjectMeta: metav1.ObjectMeta{
Name: name,
},
Spec: cabpkv1.KubeadmConfigTemplateSpec{
Template: cabpkv1.KubeadmConfigTemplateResource{
Spec: *kubeadmSpec,
},
},
}, nil
}
func generateKubeadmControlPlane(name string) (*kcpv1.KubeadmControlPlane, error) {
kubeadmSpec, err := generateKubeadmConfigSpec()
if err != nil {
return nil, err
}
return &kcpv1.KubeadmControlPlane{
TypeMeta: metav1.TypeMeta{
Kind: "KubeadmControlPlane",
APIVersion: kcpv1.GroupVersion.String(),
},
ObjectMeta: metav1.ObjectMeta{
Name: name,
},
Spec: kcpv1.KubeadmControlPlaneSpec{
KubeadmConfigSpec: *kubeadmSpec,
Version: "${KUBERNETES_VERSION}",
},
}, nil
}
func generateKubeadmConfigSpec() (*cabpkv1.KubeadmConfigSpec, error) {
data, err := dataDebian_injection_scriptEnvsubstShBytes()
if err != nil {
return nil, err
}
return &cabpkv1.KubeadmConfigSpec{
Files: []cabpkv1.File{
{
Path: "/usr/local/bin/ci-artifacts.sh",
Content: string(data),
Owner: "root:root",
Permissions: "0750",
},
},
PreKubeadmCommands: []string{"/usr/local/bin/ci-artifacts.sh"},
}, nil
}