-
cuisongliu authorede29c150c
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
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
package recipe
import (
"fmt"
"io/ioutil"
log "github.com/sirupsen/logrus"
"github.com/weaveworks/wksctl/pkg/apis/wksprovider/controller/manifests"
baremetalspecv1 "github.com/weaveworks/wksctl/pkg/baremetalproviderspec/v1alpha1"
"github.com/weaveworks/wksctl/pkg/plan"
"github.com/weaveworks/wksctl/pkg/plan/resource"
"github.com/weaveworks/wksctl/pkg/utilities/envcfg"
"github.com/weaveworks/wksctl/pkg/utilities/object"
)
// BuildBasePlan creates a plan for installing the base building blocks for the node
func BuildBasePlan(pkgType resource.PkgType) plan.Resource {
b := plan.NewBuilder()
switch pkgType {
case resource.PkgTypeRPM, resource.PkgTypeRHEL:
// Package manager features
b.AddResource("install:yum-utils", &resource.RPM{Name: "yum-utils"})
b.AddResource("install:yum-versionlock", &resource.RPM{Name: "yum-plugin-versionlock"})
// Device Mapper
b.AddResource("install:device-mapper-persistent-data", &resource.RPM{Name: "device-mapper-persistent-data"})
b.AddResource("install:lvm2", &resource.RPM{Name: "lvm2"})
// if pkgType == resource.PkgTypeRHEL {
// // RHEL requires installation of container-selinux
// b.AddResource("install:container-selinux", &resource.RPM{Name: "container-selinux"})
// }
case resource.PkgTypeDeb:
// Package manager features
b.AddResource("install:gnupg", &resource.Deb{Name: "gnupg"})
// TODO(michal): Enable locking
// Device Mapper
b.AddResource("install:thin-provisioning-tools", &resource.Deb{Name: "thin-provisioning-tools"})
b.AddResource("install:lvm2", &resource.Deb{Name: "lvm2"})
}
p, err := b.Plan()
p.SetUndoCondition(func(_ plan.Runner, _ plan.State) bool { return false })
if err != nil {
log.Fatalf("%v", err)
}
return &p
}
// BuildConfigPlan creates a plan for handling the configuration files
func BuildConfigPlan(files []*resource.File) plan.Resource {
b := plan.NewBuilder()
for idx, file := range files {
b.AddResource(fmt.Sprintf("install:config-file-%d", idx), file)
}
p, err := b.Plan()
if err != nil {
log.Fatalf("%v", err)
}
return &p
}
// BuildConfigMapPlan creates a plan to handle config maps
func BuildConfigMapPlan(manifests map[string][]byte, namespace string) plan.Resource {
b := plan.NewBuilder()
for name, manifest := range manifests {
remoteName := fmt.Sprintf("config-map-%s", name)
b.AddResource("install:"+remoteName, &resource.KubectlApply{Filename: object.String(remoteName), Manifest: manifest, Namespace: object.String(namespace)})
}
p, err := b.Plan()
if err != nil {
log.Fatalf("%v", err)
}
return &p
}
// BuildCRIPlan creates a plan for installing a CRI. Currently, Docker is the only supported CRI
func BuildCRIPlan(criSpec *baremetalspecv1.ContainerRuntime, cfg *envcfg.EnvSpecificConfig, pkgType resource.PkgType) plan.Resource {
b := plan.NewBuilder()
// Docker Repo
switch pkgType {
case resource.PkgTypeDeb:
// TODO(michal): Use the official docker.com repo
}
if criSpec.Kind != "docker" {
log.Fatalf("Unknown CRI - %s", criSpec.Kind)
}
// Docker runtime
switch pkgType {
case resource.PkgTypeRPM, resource.PkgTypeRHEL:
b.AddResource("install:docker", &resource.RPM{Name: criSpec.Package, Version: criSpec.Version})
case resource.PkgTypeDeb:
// TODO(michal): Use the official docker.com repo
b.AddResource("install:docker", &resource.Deb{Name: "docker.io"})
}
if cfg.LockYUMPkgs {
b.AddResource(
"lock-package:docker",
&resource.Run{
Script: object.String("yum versionlock add docker-ce"),
// If we never installed yum-plugin-versionlock or docker, this should not fail
UndoScript: object.String("yum versionlock delete docker-ce || true")},
plan.DependOn("install:docker"))
}
b.AddResource(
"systemd:daemon-reload",
&resource.Run{Script: object.String("systemctl daemon-reload")},
plan.DependOn("install:docker"),
)
b.AddResource(
"service-init:docker-service",
&resource.Service{Name: "docker", Status: "active", Enabled: true},
plan.DependOn("systemd:daemon-reload"))
p, err := b.Plan()
p.SetUndoCondition(func(r plan.Runner, _ plan.State) bool {
type AwareChanger interface {
WouldChangeState(r plan.Runner) (bool, error)
}
chg, err := p.GetResource("install:docker").(AwareChanger).WouldChangeState(r)
return chg || (err != nil)
})
if err != nil {
log.Fatalf("%v", err)
}
return &p
}
var swapContents = `[Service]
# Disable swap to please kubeadm. See: https://github.com/kubernetes/kubeadm/issues/610
ExecStartPre=-/sbin/swapoff -a
`
// BuildK8SPlan creates a plan for running kubernetes on a node
func BuildK8SPlan(kubernetesVersion string, kubeletNodeIP string, setSELinuxPermissive, disableSwap, lockYUMPkgs bool, pkgType resource.PkgType, cloudProvider string) plan.Resource {
b := plan.NewBuilder()
// Kubernetes repos
switch pkgType {
case resource.PkgTypeRPM, resource.PkgTypeRHEL:
// do nothing
case resource.PkgTypeDeb:
// XXX: Workaround for https://github.com/weaveworks/wksctl/issues/654 : *.gpg is a binary format, and currently wks is unable to handle
// binary files in the configuration configmap. Therefore, I needed to supply the *.gpg contents base64-encoded.
// In a world without that bug, one could just use the "!!binary"" YAML format in the configmap and store the *.gpg there directly.
b.AddResource("configure:kubernetes-repo-key", &resource.Run{
Script: object.String("base64 -d /tmp/cloud-google-com.gpg.b64 > /etc/apt/trusted.gpg.d/cloud-google-com.gpg"),
})
repoLine := "deb https://apt.kubernetes.io/ kubernetes-xenial main"
repoFile := "/etc/apt/sources.list.d/wks-google.list"
sedExpr := fmt.Sprintf(`\!%s!d`, repoLine) // same as '/%s/d' but allows '/' in %s
b.AddResource("configure:kubernetes-repo", &resource.Run{
Script: object.String(fmt.Sprintf("echo %q | tee -a %q", repoLine, repoFile)),
UndoScript: object.String(fmt.Sprintf(`test ! -f %q || sed -i '%s' %q`, repoFile, sedExpr, repoFile)),
}, plan.DependOn("configure:kubernetes-repo-key"))
}
// Set SELinux to permissive mode.
if setSELinuxPermissive {
b.AddResource(
"selinux:permissive",
&resource.Run{
Script: object.String("setenforce 0 && sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config"),
UndoScript: object.String("setenforce 1 && sed -i 's/^SELINUX=permissive$/SELINUX=enforcing/' /etc/selinux/config"),
})
}
// Install k8s packages
switch pkgType {
case resource.PkgTypeRPM, resource.PkgTypeRHEL:
b.AddResource("install:kubelet", &resource.RPM{Name: "kubelet", Version: kubernetesVersion, DisableExcludes: "kubernetes"})
b.AddResource("install:kubectl", &resource.RPM{Name: "kubectl", Version: kubernetesVersion, DisableExcludes: "kubernetes"})
b.AddResource("install:kubeadm",
&resource.RPM{Name: "kubeadm", Version: kubernetesVersion, DisableExcludes: "kubernetes"},
plan.DependOn("install:kubectl"),
plan.DependOn("install:kubelet"),
)
case resource.PkgTypeDeb:
// TODO(michal): Install the newest release version by default instead of hardcoding "-00".
b.AddResource("install:kubelet", &resource.Deb{Name: "kubelet", Suffix: "=" + kubernetesVersion + "-00"}, plan.DependOn("configure:kubernetes-repo"))
b.AddResource("install:kubeadm", &resource.Deb{Name: "kubeadm", Suffix: "=" + kubernetesVersion + "-00"}, plan.DependOn("configure:kubernetes-repo"))
b.AddResource("install:kubectl", &resource.Deb{Name: "kubectl", Suffix: "=" + kubernetesVersion + "-00"}, plan.DependOn("configure:kubernetes-repo"))
}
if lockYUMPkgs {
b.AddResource(
"lock-package:kubernetes",
&resource.Run{
Script: object.String("yum versionlock add 'kube*'"),
// If we never installed yum-plugin-versionlock or kubernetes, this should not fail
UndoScript: object.String("yum versionlock delete 'kube*' || true")},
plan.DependOn("install:kubectl"),
plan.DependOn("install:kubeadm"),
plan.DependOn("install:kubelet"),
)
}
b.AddResource(
"create-dir:kubelet.service.d",
&resource.Dir{Path: object.String("/etc/systemd/system/kubelet.service.d")},
)
kubeletDeps := []string{"create-dir:kubelet.service.d"}
var processCloudProvider = func(cmdline string) string {
if cloudProvider != "" {
log.WithField("cloudProvider", cloudProvider).Debug("using cloud provider")
return fmt.Sprintf("%s --cloud-provider=%s\n", cmdline, cloudProvider)
}
return cmdline + "\n"
}
if disableSwap {
swapDisable := "configure:kubernetes-swap-disable"
kubeletDeps = append(kubeletDeps, swapDisable)
b.AddResource(
swapDisable,
&resource.File{Content: swapContents, Destination: "/etc/systemd/system/kubelet.service.d/11-wks-kubelet.conf"},
plan.DependOn("create-dir:kubelet.service.d"))
kubeletSysconfig := "configure:kubelet-sysconfig"
kubeletDeps = append(kubeletDeps, kubeletSysconfig)
b.AddResource(
kubeletSysconfig,
&resource.File{
Content: processCloudProvider(fmt.Sprintf("KUBELET_EXTRA_ARGS=--node-ip=%s", kubeletNodeIP)),
Destination: "/etc/sysconfig/kubelet"},
plan.DependOn("install:kubelet"))
} else {
kubeletSysconfig := "configure:kubelet-sysconfig"
kubeletDeps = append(kubeletDeps, kubeletSysconfig)
b.AddResource(
kubeletSysconfig,
&resource.File{
Content: processCloudProvider(fmt.Sprintf("KUBELET_EXTRA_ARGS=--fail-swap-on=false --node-ip=%s", kubeletNodeIP)),
Destination: "/etc/sysconfig/kubelet"},
plan.DependOn("install:kubelet"))
}
b.AddResource(
"service-init:kubelet",
&resource.Service{Name: "kubelet", Status: "active", Enabled: true},
plan.DependOn("install:kubelet", kubeletDeps...))
p, err := b.Plan()
if err != nil {
log.Fatalf("%v", err)
}
return &p
}
// BuildCNIPlan creates a sub-plan to install the CNI plugin.
func BuildCNIPlan(cni string, manifests [][]byte) plan.Resource {
b := plan.NewBuilder()
if len(manifests) != 1 {
log.Fatalf("install-cni: expected 1 manifest for the CNI plugin, got %d", len(manifests))
}
b.AddResource(
"install-cni:apply-manifests",
&resource.KubectlApply{Manifest: manifests[0], Filename: object.String(cni + ".yaml")},
)
p, err := b.Plan()
if err != nil {
log.Fatalf("%v", err)
}
return &p
}
//BuildSealedSecretPlan creates a sub-plan to install sealed secrets so we can check secrets into GitHub for GitOps
func BuildSealedSecretPlan(sealedSecretVersion, ns string, manifest []byte) plan.Resource {
b := plan.NewBuilder()
fileCRD, err := manifests.Manifests.Open("05_sealed_secret_crd.yaml")
if err != nil {
log.Fatalf("%v", err)
}
manifestbytesCRD, err := ioutil.ReadAll(fileCRD)
if err != nil {
log.Fatalf("%v", err)
}
b.AddResource("install:sealed-secret-crd",
&resource.KubectlApply{Manifest: manifestbytesCRD, Filename: object.String("SealedSecretCRD.yaml"),
WaitCondition: "condition=Established"})
b.AddResource("install:sealed-secrets-key", &resource.KubectlApply{Manifest: manifest})
file, err := manifests.Manifests.Open("06_sealed_secret_controller.yaml")
if err != nil {
log.Fatalf("%v", err)
}
manifestbytes, err := ioutil.ReadAll(file)
if err != nil {
log.Fatalf("%v", err)
}
b.AddResource("install:sealed-secrets-controller",
&resource.KubectlApply{Manifest: manifestbytes, Filename: object.String("SealedSecretController.yaml")},
plan.DependOn("install:sealed-secrets-key"))
p, err := b.Plan()
if err != nil {
log.Fatalf("%v", err)
}
return &p
}
// BuildKubeadmPrejoinPlan creates a sub-plan to prepare for running
// kubeadm join.
func BuildKubeadmPrejoinPlan(kubernetesVersion string, useIPTables bool) plan.Resource {
b := plan.NewBuilder()
if useIPTables {
b.AddResource(
"configure:net.bridge",
&resource.Run{Script: object.String("sysctl net.bridge.bridge-nf-call-iptables=1")},
)
}
b.AddResource(
"configure:kubeadm-force-reset",
&resource.Run{Script: object.String("kubeadm reset --force")},
)
p, err := b.Plan()
if err != nil {
log.Fatalf("%v", err)
}
return &p
}
// BuildAddonPlan creates a plan containing all the addons from the cluster manifest
func BuildAddonPlan(clusterManifestPath string, addons map[string][][]byte) plan.Resource {
b := plan.NewBuilder()
for name, manifests := range addons {
var previous *string
for i, m := range manifests {
resFile := fmt.Sprintf("%s-%02d", name, i)
resName := "install:addon:" + resFile
manRsc := &resource.KubectlApply{Manifest: m, Filename: object.String(resFile + ".yaml"), Namespace: object.String("addons")}
if previous != nil {
b.AddResource(resName, manRsc, plan.DependOn(*previous))
} else {
b.AddResource(resName, manRsc)
}
previous = &resName
}
}
p, err := b.Plan()
if err != nil {
log.Fatalf("%v", err)
}
return &p
}