KubeEdge集群搭建
1. 前言
上一篇文章我把整個KubeEdge的宏觀架構設計講了一遍，今天的內容是實操實踐，手把手教你搭建KubeEdge集群。
2. 准備工作
需要兩台機器，不管是筆記本也好還是樹莓派都可以，單是有一個前提，作為Master節點的機器的配置至少要達到2C4G，不然跑不了k8s。還要就是OS要是Linux的，別的系統不行。負載節點就無所謂啦，比如說樹莓派3B+或者是樹莓派4B+都可以。現在的樹莓派配置也是相當的高了，arm的小板子也能做到4C 8G。
3. 搭建K8s
搭建K8s我已經在之前的文章中寫了，不會的直接回去看 傳送門
4. 安裝Cloudcore
安裝有兩種方式，一種源碼編譯手動安裝，還有一種是使用ke提供的工具-keadm。手動安裝比較繁瑣，對於新手而言是一種很大的心智負擔，最好大家還是都用keadm這個工具去安裝，但是，這種方式安裝最大的問題就是國內的牆的問題會導致很多某些資源無法下載，比如說 CRD的yaml,cloudcore啟動的service，所以我會結合兩者，采用半手動半工具的安裝方式去幫助大家順利的完成ke的集群搭建。
1 下載keadm
wget https://github.com/kubeedge/kubeedge/releases/download/v1.5.0/keadm-v1.5.0-linux-amd64.tar.gz
我寫這篇文章的時候,ke的版本還是v1.5.0,所以我就以安裝1.5.0版本的作為一個例子。
下載下來之后執行
tar -zxvf keadm-v1.5.0-linux-amd64.tar.gz # 解壓keadm的tar.gz的包
cd keadm-v1.5.0-linux-amd64/keadm && chmod +x keadm && mv keadm /usr/local/bin
驗證keadm是否安裝成功
$ keadm version
version: version.Info{Major:"1", Minor:"5", GitVersion:"v1.5.0", GitCommit:"8b0913e04ef4ef826af6715d336e23a66e3774df", GitTreeState:"clean", BuildDate:"2020-11-13T08:04:56Z", GoVersion:"go1.15", Compiler:"gc", Platform:"linux/amd64"}
2 使用keadm安裝cloudcore
keadm init --advertise-address=xxx.xx.xx.xx --kubeedge-version=1.5.0
Kubernetes version verification passed, KubeEdge installation will start...
--2021-02-11 13:20:41-- https://raw.githubusercontent.com/kubeedge/kubeedge/master/build/crds/devices/devices_v1alpha2_device.yaml
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.76.133
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.76.133|:443... connected.
Unable to establish SSL connection.
Converted links in 0 files in 0 seconds.
Error: failed to run 'sh -c cd /etc/kubeedge/crds/devices && wget -k --no-check-certificate --progress=bar:force https://raw.githubusercontent.com/kubeedge/kubeedge/master/build/crds/devices/devices_v1alpha2_device.yaml' because of error : exit status 4
Usage:
keadm init [flags]
Examples:
keadm init
- This command will download and install the default version of KubeEdge cloud component
keadm init --kubeedge-version=1.5.0 --kube-config=/root/.kube/config
- kube-config is the absolute path of kubeconfig which used to secure connectivity between cloudcore and kube-apiserver
Flags:
--advertise-address string Use this key to set IPs in cloudcore's certificate SubAltNames field. eg: 10.10.102.78,10.10.102.79
--domainname string Use this key to set domain names in cloudcore's certificate SubAltNames field. eg: www.cloudcore.cn,www.kubeedge.cn
-h, --help help for init
--kube-config string Use this key to set kube-config path, eg: $HOME/.kube/config (default "/root/.kube/config")
--kubeedge-version string Use this key to download and use the required KubeEdge version
--master string Use this key to set K8s master address, eg: http://127.0.0.1:8080
--tarballpath string Use this key to set the temp directory path for KubeEdge tarball, if not exist, download it
F0211 13:20:41.433946 15198 keadm.go:27] failed to run 'sh -c cd /etc/kubeedge/crds/devices && wget -k --no-check-certificate --progress=bar:force https://raw.githubusercontent.com/kubeedge/kubeedge/master/build/crds/devices/devices_v1alpha2_device.yaml' because of error : exit status 4
goroutine 1 [running]:
k8s.io/klog.stacks(0xc0000d3e00, 0xc000026480, 0x122, 0x176)
/root/codes/src/github.com/kubeedge/kubeedge/vendor/k8s.io/klog/klog.go:883 +0xb9
k8s.io/klog.(*loggingT).output(0x2cb3c80, 0xc000000003, 0xc0000b4b60, 0x29d13f1, 0x8, 0x1b, 0x0)
/root/codes/src/github.com/kubeedge/kubeedge/vendor/k8s.io/klog/klog.go:834 +0x35f
k8s.io/klog.(*loggingT).printDepth(0x2cb3c80, 0xc000000003, 0x1, 0xc000843f68, 0x1, 0x1)
/root/codes/src/github.com/kubeedge/kubeedge/vendor/k8s.io/klog/klog.go:706 +0x12d
k8s.io/klog.(*loggingT).print(...)
/root/codes/src/github.com/kubeedge/kubeedge/vendor/k8s.io/klog/klog.go:697
k8s.io/klog.Fatal(...)
/root/codes/src/github.com/kubeedge/kubeedge/vendor/k8s.io/klog/klog.go:1264
main.main()
/root/codes/src/github.com/kubeedge/kubeedge/keadm/cmd/keadm/keadm.go:27 +0x8a
--advertise-address=xxx.xx.xx.xx 這里的xxx.xx.xx.xx換成你master機器的ip,可以是內網地址，也可以是公網ip地址，--kubeedge-version=1.5.0 意思是指定安裝的ke的版本，如果你默認不指定那么keadm會自動去下載最新的版本。很遺憾，我在執行
keadm init --advertise-address=xxx.xx.xx.xx --kubeedge-version=1.5.0
命令的時候出錯了，這個錯的問題在於網絡被牆了，特別是在公有雲的虛擬機上，出現這種問題的概率特別大，這種問題咋解決，一種是FQ翻出去，另外一種是在/etc/hosts下添加如下內容
# GitHub Start
52.74.223.119 github.com
192.30.253.119 gist.github.com
54.169.195.247 api.github.com
185.199.111.153 assets-cdn.github.com
151.101.76.133 raw.githubusercontent.com
151.101.108.133 user-images.githubusercontent.com
151.101.76.133 gist.githubusercontent.com
151.101.76.133 cloud.githubusercontent.com
151.101.76.133 camo.githubusercontent.com
151.101.76.133 avatars0.githubusercontent.com
151.101.76.133 avatars1.githubusercontent.com
151.101.76.133 avatars2.githubusercontent.com
151.101.76.133 avatars3.githubusercontent.com
151.101.76.133 avatars4.githubusercontent.com
151.101.76.133 avatars5.githubusercontent.com
151.101.76.133 avatars6.githubusercontent.com
151.101.76.133 avatars7.githubusercontent.com
151.101.76.133 avatars8.githubusercontent.com
# GitHub End
添加這個的目的就是我們遇到的錯誤其實就是keadm初始化過程中可能無法解析raw.githubusercontent.com。
如果試了上述方法還是不行，那我只能用殺手鐧了，我們回過頭看錯誤
F0211 13:20:41.433946 15198 keadm.go:27] failed to run 'sh -c cd /etc/kubeedge/crds/devices && wget -k --no-check-certificate --progress=bar:force https://raw.githubusercontent.com/kubeedge/kubeedge/master/build/crds/devices/devices_v1alpha2_device.yaml'
這是下載devices_v1alpha2_device.yaml這個crd的yaml下載不了啊。熟悉源碼的朋友一定知道這不就是用於設備接入的CRD嘛。一個叫Devicle,一個叫DeviceModel。其實我的做法就是從源碼里把這兩個crd搞下來不就好了嘛。
mkdir -p /etc/kubeedge/crds/devices && mkdir -p /etc/kubeedge/crds/reliablesyncs
按照這個路徑創建文件夾 devices和reliablesyncs都是keadm去下載的
cd /etc/kubeedge/crds/devices && vim devices_v1alpha2_devicemodel.yaml ## 創建 evices_v1alpha2_devicemodel.yaml
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
name: devicemodels.devices.kubeedge.io
spec:
group: devices.kubeedge.io
names:
kind: DeviceModel
plural: devicemodels
scope: Namespaced
validation:
openAPIV3Schema:
properties:
apiVersion:
description: 'APIVersion defines the versioned schema of this representation
of an object. Servers should convert recognized schemas to the latest
internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#resources'
type: string
kind:
description: 'Kind is a string value representing the REST resource this
object represents. Servers may infer this from the endpoint the client
submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds'
type: string
metadata:
type: object
spec:
properties:
properties:
description: 'Required: List of device properties.'
items:
properties:
description:
description: The device property description.
type: string
name:
description: 'Required: The device property name.'
type: string
type:
description: 'Required: PropertyType represents the type and data
validation of the property.'
properties:
int:
properties:
accessMode:
description: 'Required: Access mode of property, ReadWrite
or ReadOnly.'
type: string
enum:
- ReadOnly
- ReadWrite
defaultValue:
format: int64
type: integer
maximum:
format: int64
type: integer
minimum:
format: int64
type: integer
unit:
description: The unit of the property
type: string
required:
- accessMode
type: object
string:
properties:
accessMode:
description: 'Required: Access mode of property, ReadWrite
or ReadOnly.'
type: string
enum:
- ReadOnly
- ReadWrite
defaultValue:
type: string
required:
- accessMode
type: object
double:
properties:
accessMode:
description: 'Required: Access mode of property, ReadWrite
or ReadOnly.'
type: string
enum:
- ReadOnly
- ReadWrite
defaultValue:
format: double
type: number
maximum:
format: double
type: number
minimum:
format: double
type: number
unit:
description: The unit of the property
type: string
required:
- accessMode
type: object
float:
properties:
accessMode:
description: 'Required: Access mode of property, ReadWrite
or ReadOnly.'
type: string
enum:
- ReadOnly
- ReadWrite
defaultValue:
format: float
type: number
maximum:
format: float
type: number
minimum:
format: float
type: number
unit:
description: The unit of the property
type: string
required:
- accessMode
type: object
boolean:
properties:
accessMode:
description: 'Required: Access mode of property, ReadWrite
or ReadOnly.'
type: string
enum:
- ReadOnly
- ReadWrite
defaultValue:
type: boolean
required:
- accessMode
type: object
bytes:
properties:
accessMode:
description: 'Required: Access mode of property, ReadWrite
or ReadOnly.'
type: string
enum:
- ReadOnly
- ReadWrite
required:
- accessMode
type: object
type: object
required:
- name
- type
type: object
type: array
type: object
version: v1alpha2
cd /etc/kubeedge/crds/devices && vim devices_v1alpha2_device.yaml
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
labels:
controller-tools.k8s.io: "1.0"
name: devices.devices.kubeedge.io
spec:
group: devices.kubeedge.io
names:
kind: Device
plural: devices
scope: Namespaced
validation:
openAPIV3Schema:
properties:
apiVersion:
description: 'APIVersion defines the versioned schema of this representation
of an object. Servers should convert recognized schemas to the latest
internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#resources'
type: string
kind:
description: 'Kind is a string value representing the REST resource this
object represents. Servers may infer this from the endpoint the client
submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds'
type: string
metadata:
type: object
spec:
properties:
deviceModelRef:
description: 'Required: DeviceModelRef is reference to the device model
used as a template to create the device instance.'
type: object
nodeSelector:
description: NodeSelector indicates the binding preferences between
devices and nodes. Refer to k8s.io/kubernetes/pkg/apis/core NodeSelector
for more details
type: object
protocol:
description: 'Required: The protocol configuration used to connect to
the device.'
properties:
bluetooth:
description: Protocol configuration for bluetooth
properties:
macAddress:
description: Unique identifier assigned to the device.
type: string
type: object
modbus:
description: Protocol configuration for modbus
properties:
slaveID:
description: Required. 0-255
format: int64
type: integer
minimum: 0
maximum: 255
required:
- slaveID
type: object
opcua:
description: Protocol configuration for opc-ua
properties:
certificate:
description: Certificate for access opc server.
type: string
password:
description: Password for access opc server.
type: string
privateKey:
description: PrivateKey for access opc server.
type: string
securityMode:
description: Defaults to "none".
type: string
securityPolicy:
description: Defaults to "none".
type: string
timeout:
description: Timeout seconds for the opc server connection.???
format: int64
type: integer
url:
description: 'Required: The URL for opc server endpoint.'
type: string
userName:
description: Username for access opc server.
type: string
required:
- url
type: object
common:
description: Common part of protocol configuration
properties:
com:
properties:
baudRate:
description: Required. BaudRate 115200|57600|38400|19200|9600|4800|2400|1800|1200|600|300|200|150|134|110|75|50
format: int64
type: integer
enum:
- 115200
- 57600
- 38400
- 19200
- 9600
- 4800
- 2400
- 1800
- 1200
- 600
- 300
- 200
- 150
- 134
- 110
- 75
- 50
dataBits:
description: Required. Valid values are 8, 7, 6, 5.
format: int64
type: integer
enum:
- 8
- 7
- 6
- 5
parity:
description: Required. Valid options are "none", "even",
"odd". Defaults to "none".
type: string
enum:
- none
- even
- odd
serialPort:
description: Required.
type: string
stopBits:
description: Required. Bit that stops 1|2
format: int64
type: integer
enum:
- 1
- 2
required:
- baudRate
- dataBits
- parity
- serialPort
- stopBits
type: object
tcp:
properties:
ip:
description: Required.
type: string
port:
description: Required.
format: int64
type: integer
required:
- ip
- port
type: object
commType:
description: Communication type, like tcp client, tcp server or COM
type: string
reconnTimeout:
description: Reconnection timeout
type: integer
reconnRetryTimes:
description: Reconnecting retry times
type: integer
collectTimeout:
description: 'Define timeout of mapper collect from device.'
format: int64
type: integer
collectRetryTimes:
description: 'Define retry times of mapper will collect from device.'
format: int64
type: integer
collectType:
description: 'Define collect type, sync or async.'
type: string
enum:
- sync
- async
customizedValues:
description: Customized values for provided protocol
type: object
type: object
customizedProtocol:
description: Protocol configuration for customized Protocol
properties:
protocolName:
description: The name of protocol
type: string
configData:
description: customized config data
type: object
required:
- protocolName
type: object
type: object
propertyVisitors:
description: 'Required: List of property visitors which describe how
to access the device properties. PropertyVisitors must unique by propertyVisitor.propertyName.'
items:
properties:
bluetooth:
description: Bluetooth represents a set of additional visitor
config fields of bluetooth protocol.
properties:
characteristicUUID:
description: 'Required: Unique ID of the corresponding operation'
type: string
dataConverter:
description: Responsible for converting the data being read
from the bluetooth device into a form that is understandable
by the platform
properties:
endIndex:
description: 'Required: Specifies the end index of incoming
byte stream to be considered to convert the data the
value specified should be inclusive for example if 3
is specified it includes the third index'
format: int64
type: integer
orderOfOperations:
description: Specifies in what order the operations(which
are required to be performed to convert incoming data
into understandable form) are performed
items:
properties:
operationType:
description: 'Required: Specifies the operation
to be performed to convert incoming data'
type: string
enum:
- Add
- Subtract
- Multiply
- Divide
operationValue:
description: 'Required: Specifies with what value
the operation is to be performed'
format: double
type: number
type: object
type: array
shiftLeft:
description: Refers to the number of bits to shift left,
if left-shift operation is necessary for conversion
format: int64
type: integer
shiftRight:
description: Refers to the number of bits to shift right,
if right-shift operation is necessary for conversion
format: int64
type: integer
startIndex:
description: 'Required: Specifies the start index of the
incoming byte stream to be considered to convert the
data. For example: start-index:2, end-index:3 concatenates
the value present at second and third index of the incoming
byte stream. If we want to reverse the order we can
give it as start-index:3, end-index:2'
format: int64
type: integer
required:
- endIndex
- startIndex
type: object
dataWrite:
description: 'Responsible for converting the data coming from
the platform into a form that is understood by the bluetooth
device For example: "ON":[1], "OFF":[0]'
type: object
required:
- characteristicUUID
type: object
modbus:
description: Modbus represents a set of additional visitor config
fields of modbus protocol.
properties:
isRegisterSwap:
description: Indicates whether the high and low register swapped.
Defaults to false.
type: boolean
isSwap:
description: Indicates whether the high and low byte swapped.
Defaults to false.
type: boolean
limit:
description: 'Required: Limit number of registers to read/write.'
format: int64
type: integer
offset:
description: 'Required: Offset indicates the starting register
number to read/write data.'
format: int64
type: integer
register:
description: 'Required: Type of register'
type: string
enum:
- CoilRegister
- DiscreteInputRegister
- InputRegister
- HoldingRegister
scale:
description: The scale to convert raw property data into final
units. Defaults to 1.0
format: double
type: number
required:
- limit
- offset
- register
type: object
opcua:
description: Opcua represents a set of additional visitor config
fields of opc-ua protocol.
properties:
browseName:
description: The name of opc-ua node
type: string
nodeID:
description: 'Required: The ID of opc-ua node, e.g. "ns=1,i=1005"'
type: string
required:
- nodeID
type: object
customizedProtocol:
description: customized protocol
properties:
protocolName:
description: The name of protocol
type: string
configData:
description: customized config data
type: object
required:
- protocolName
- configData
type: object
propertyName:
description: 'Required: The device property name to be accessed.
This should refer to one of the device properties defined in
the device model.'
type: string
reportCycle:
description: 'Define how frequent mapper will report the value.'
format: int64
type: integer
collectCycle:
description: 'Define how frequent mapper will collect from device.'
format: int64
type: integer
customizedValues:
description: Customized values for visitor of provided protocols
type: object
required:
- propertyName
type: object
type: array
data:
properties:
dataTopic:
description: 'Topic used by mapper, all data collected from dataProperties
should be published to this topic,
the default value is $ke/events/device/+/data/update'
type: string
dataProperties:
description: A list of data properties, which are not required to be processed by edgecore
items:
properties:
propertyName:
description: 'Required: The property name for which the desired/reported
values are specified. This property should be present in the
device model.'
type: string
metadata:
description: Additional metadata like filter policy, should be k-v format
type: object
required:
- propertyName
type: object
type: array
type: object
required:
- deviceModelRef
- nodeSelector
type: object
status:
properties:
twins:
description: A list of device twins containing desired/reported desired/reported
values of twin properties. A passive device won't have twin properties
and this list could be empty.
items:
properties:
desired:
description: 'Required: the desired property value.'
properties:
metadata:
description: Additional metadata like timestamp when the value
was reported etc.
type: object
value:
description: 'Required: The value for this property.'
type: string
required:
- value
type: object
propertyName:
description: 'Required: The property name for which the desired/reported
values are specified. This property should be present in the
device model.'
type: string
reported:
description: 'Required: the reported property value.'
properties:
metadata:
description: Additional metadata like timestamp when the value
was reported etc.
type: object
value:
description: 'Required: The value for this property.'
type: string
required:
- value
type: object
required:
- propertyName
type: object
type: array
type: object
version: v1alpha2
device的crd好了，現在去弄reliablesyncs的crd還是一樣
cd /etc/kubeedge/crds/reliablesyncs && vim cluster_objectsync_v1alpha1.yaml
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
labels:
controller-tools.k8s.io: "1.0"
name: clusterobjectsyncs.reliablesyncs.kubeedge.io
spec:
group: reliablesyncs.kubeedge.io
names:
kind: ClusterObjectSync
plural: clusterobjectsyncs
scope: Cluster
subresources:
status: {}
validation:
openAPIV3Schema:
properties:
apiVersion:
description: 'APIVersion defines the versioned schema of this representation
of an object. Servers should convert recognized schemas to the latest
internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#resources'
type: string
kind:
description: 'Kind is a string value representing the REST resource this
object represents. Servers may infer this from the endpoint the client
submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds'
type: string
metadata:
type: object
spec:
properties:
objectType:
description: NodeSelector indicates the binding preferences between
devices and nodes. Refer to k8s.io/kubernetes/pkg/apis/core NodeSelector
for more details
type: string
objectName:
description: 'Required: The protocol configuration used to connect to
the device.'
type: string
status:
properties:
objectResourceVersion:
description: 'Required: DeviceModelRef is reference to the device model
used as a template to create the device instance.'
type: string
version: v1alpha
cd /etc/kubeedge/crds/reliablesyncs && vim objectsync_v1alpha1.yaml
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
labels:
controller-tools.k8s.io: "1.0"
name: objectsyncs.reliablesyncs.kubeedge.io
spec:
group: reliablesyncs.kubeedge.io
names:
kind: ObjectSync
plural: objectsyncs
scope: Namespaced
subresources:
status: {}
validation:
openAPIV3Schema:
properties:
apiVersion:
description: 'APIVersion defines the versioned schema of this representation
of an object. Servers should convert recognized schemas to the latest
internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#resources'
type: string
kind:
description: 'Kind is a string value representing the REST resource this
object represents. Servers may infer this from the endpoint the client
submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds'
type: string
metadata:
type: object
spec:
properties:
objectType:
description: NodeSelector indicates the binding preferences between
devices and nodes. Refer to k8s.io/kubernetes/pkg/apis/core NodeSelector
for more details
type: string
objectName:
description: 'Required: The protocol configuration used to connect to
the device.'
type: string
status:
properties:
objectResourceVersion:
description: 'Required: DeviceModelRef is reference to the device model
used as a template to create the device instance.'
type: string
version: v1alpha1#
還有一個事情要提前說下，這些crd都准備好了之后,keadm會去下載kubedge的資源。我們實現准備好的話是不是就可以啦,主要還是怕你網絡不行，網絡ok的話就沒有這個問題。
在 /etc/kubeedge下面執行
wget https://github.com/kubeedge/kubeedge/releases/download/v1.5.0/kubeedge-v1.5.0-linux-amd64.tar.gz
## 因為的機器是x86架構的處理器，所以是amd64,如果你是別的那就改下這個就行了。
這些都創建完了之后再次執行
keadm init --advertise-address=xxx.xx.xx.xx --kubeedge-version=1.5.0
Kubernetes version verification passed, KubeEdge installation will start...
W0211 13:58:27.853894 23320 warnings.go:67] apiextensions.k8s.io/v1beta1 CustomResourceDefinition is deprecated in v1.16+, unavailable in v1.22+; use apiextensions.k8s.io/v1 CustomResourceDefinition
W0211 13:58:27.862976 23320 warnings.go:67] apiextensions.k8s.io/v1beta1 CustomResourceDefinition is deprecated in v1.16+, unavailable in v1.22+; use apiextensions.k8s.io/v1 CustomResourceDefinition
W0211 13:58:27.870072 23320 warnings.go:67] apiextensions.k8s.io/v1beta1 CustomResourceDefinition is deprecated in v1.16+, unavailable in v1.22+; use apiextensions.k8s.io/v1 CustomResourceDefinition
W0211 13:58:27.876587 23320 warnings.go:67] apiextensions.k8s.io/v1beta1 CustomResourceDefinition is deprecated in v1.16+, unavailable in v1.22+; use apiextensions.k8s.io/v1 CustomResourceDefinition
Expected or Default KubeEdge version 1.5.0 is already downloaded and will checksum for it.
kubeedge-v1.5.0-linux-amd64.tar.gz checksum:
checksum_kubeedge-v1.5.0-linux-amd64.tar.gz.txt content:
[Run as service] start to download service file for cloudcore
Output failed: exit status 4
Error: fail to download service file,error:{failed to run command(cd /etc/kubeedge/ && sudo -E wget -t 5 -k --no-check-certificate https://raw.githubusercontent.com/kubeedge/kubeedge/release-1.5/build/tools/cloudcore.service), err:exit status 4}
Usage:
keadm init [flags]
Examples:
keadm init
- This command will download and install the default version of KubeEdge cloud component
keadm init --kubeedge-version=1.5.0 --kube-config=/root/.kube/config
- kube-config is the absolute path of kubeconfig which used to secure connectivity between cloudcore and kube-apiserver
Flags:
--advertise-address string Use this key to set IPs in cloudcore's certificate SubAltNames field. eg: 10.10.102.78,10.10.102.79
--domainname string Use this key to set domain names in cloudcore's certificate SubAltNames field. eg: www.cloudcore.cn,www.kubeedge.cn
-h, --help help for init
--kube-config string Use this key to set kube-config path, eg: $HOME/.kube/config (default "/root/.kube/config")
--kubeedge-version string Use this key to download and use the required KubeEdge version
--master string Use this key to set K8s master address, eg: http://127.0.0.1:8080
--tarballpath string Use this key to set the temp directory path for KubeEdge tarball, if not exist, download it
F0211 13:58:30.352570 23320 keadm.go:27] fail to download service file,error:{failed to run command(cd /etc/kubeedge/ && sudo -E wget -t 5 -k --no-check-certificate https://raw.githubusercontent.com/kubeedge/kubeedge/release-1.5/build/tools/cloudcore.service), err:exit status 4}
goroutine 1 [running]:
k8s.io/klog.stacks(0xc000599300, 0xc0008ce2c0, 0x11a, 0x2a4)
/root/codes/src/github.com/kubeedge/kubeedge/vendor/k8s.io/klog/klog.go:883 +0xb9
k8s.io/klog.(*loggingT).output(0x2cb3c80, 0xc000000003, 0xc0002f2850, 0x29d13f1, 0x8, 0x1b, 0x0)
/root/codes/src/github.com/kubeedge/kubeedge/vendor/k8s.io/klog/klog.go:834 +0x35f
k8s.io/klog.(*loggingT).printDepth(0x2cb3c80, 0xc000000003, 0x1, 0xc00089ff68, 0x1, 0x1)
/root/codes/src/github.com/kubeedge/kubeedge/vendor/k8s.io/klog/klog.go:706 +0x12d
k8s.io/klog.(*loggingT).print(...)
/root/codes/src/github.com/kubeedge/kubeedge/vendor/k8s.io/klog/klog.go:697
k8s.io/klog.Fatal(...)
/root/codes/src/github.com/kubeedge/kubeedge/vendor/k8s.io/klog/klog.go:1264
main.main()
/root/codes/src/github.com/kubeedge/kubeedge/keadm/cmd/keadm/keadm.go:27 +0x8a
到了最后還是出了一個問題，還是網絡的問題啊，意思是cloudcore的service文件下載不了，那沒辦法了，手動創建咯。
vim cloudcore.service
[Unit]
Description=cloudcore.service
[Service]
Type=simple
ExecStart=/etc/kubeedge/kubeedge-v1.5.0-linux-amd64/cloud/cloudcore/cloudcore --logtostderr=false --log-file=/var/log/kubeedge/cloudcore.log -v=3
Restart=always
RestartSec=10
[Install]
WantedBy=multi-user.target
然后我們再執行
$ keadm init --advertise-address=106.13.177.82 --kubeedge-version=1.5.0
Kubernetes version verification passed, KubeEdge installation will start...
W0211 14:04:38.942389 29815 warnings.go:67] apiextensions.k8s.io/v1beta1 CustomResourceDefinition is deprecated in v1.16+, unavailable in v1.22+; use apiextensions.k8s.io/v1 CustomResourceDefinition
W0211 14:04:38.950811 29815 warnings.go:67] apiextensions.k8s.io/v1beta1 CustomResourceDefinition is deprecated in v1.16+, unavailable in v1.22+; use apiextensions.k8s.io/v1 CustomResourceDefinition
W0211 14:04:38.966118 29815 warnings.go:67] apiextensions.k8s.io/v1beta1 CustomResourceDefinition is deprecated in v1.16+, unavailable in v1.22+; use apiextensions.k8s.io/v1 CustomResourceDefinition
W0211 14:04:38.975750 29815 warnings.go:67] apiextensions.k8s.io/v1beta1 CustomResourceDefinition is deprecated in v1.16+, unavailable in v1.22+; use apiextensions.k8s.io/v1 CustomResourceDefinition
Expected or Default KubeEdge version 1.5.0 is already downloaded and will checksum for it.
kubeedge-v1.5.0-linux-amd64.tar.gz checksum:
checksum_kubeedge-v1.5.0-linux-amd64.tar.gz.txt content:
[Run as service] service file already exisits in /etc/kubeedge//cloudcore.service, skip download
kubeedge-v1.5.0-linux-amd64/
kubeedge-v1.5.0-linux-amd64/edge/
kubeedge-v1.5.0-linux-amd64/edge/edgecore
kubeedge-v1.5.0-linux-amd64/cloud/
kubeedge-v1.5.0-linux-amd64/cloud/csidriver/
kubeedge-v1.5.0-linux-amd64/cloud/csidriver/csidriver
kubeedge-v1.5.0-linux-amd64/cloud/admission/
kubeedge-v1.5.0-linux-amd64/cloud/admission/admission
kubeedge-v1.5.0-linux-amd64/cloud/cloudcore/
kubeedge-v1.5.0-linux-amd64/cloud/cloudcore/cloudcore
kubeedge-v1.5.0-linux-amd64/version
KubeEdge cloudcore is running, For logs visit: /var/log/kubeedge/cloudcore.log
CloudCore started
這就表示cloudcore已經安裝完成了
3. 校驗cloudcore安裝情況
1. 檢查進程的運行情況
$ ps aux | grep cloudcore
root 599 0.0 0.0 16188 1012 pts/0 S+ 14:07 0:00 grep --color=auto --exclude-dir=.bzr --exclude-dir=CVS --exclude-dir=.git --exclude-dir=.hg --exclude-dir=.svn --exclude-dir=.idea --exclude-dir=.tox cloudcore
root 32150 0.8 1.2 1269852 51632 ? Ssl 14:06 0:00 /etc/kubeedge/kubeedge-v1.5.0-linux-amd64/cloud/cloudcore/cloudcore --logtostderr=false --log-file=/var/log/kubeedge/cloudcore.log -v=3
如果你想把cloudcore交給systemed托管的話切記把cloudcore.service移到/etc/systemed/system下面然后再執行下systemctl daemon-reload
2. 查看k8s
正常的情況下cloudcore運行起來之后會在k8s器群創建一個叫kubeedge的namespace,這個ns下面有secret，存的就是ke集群的token cert啥的
$ k get secret -nkubeedge
NAME TYPE DATA AGE
casecret Opaque 2 21h
cloudcoresecret Opaque 2 21h
default-token-bt26c kubernetes.io/service-account-token 3 21h
tokensecret Opaque 1 21h
如果你的結果和我的一樣，恭喜你，你的ke的cloudcore已經順利安裝完成了。
5. 安裝edgecore
edgecore的安裝相比cloudcore而言簡單很多，不過我們還是要靠keadm這個工具，先在邊緣節點上安裝keadm,安裝方式和上面cloudcore的一樣，這里就不重復說了。如果你的邊緣節點的網絡不是很好的話還是建議提早下載好ke的資源文件，和安裝cloudcore的時候一樣
mkdir -p /etc/kubeedge && wget https://github.com/kubeedge/kubeedge/releases/download/v1.5.0/kubeedge-v1.5.0-linux-arm.tar.gz
## 我用樹莓派作為邊緣節點的，所以下載的是arm架構的
直接執行
keadm join --cloudcore-ipport=xx.xx.xx.xx:10000 --kubeedge-version=1.5.0 --token=<token>
-cloudcore-ipport表示的是cloudcore的對外暴露的ip就是公網ip了，記得打開安全組的端口如果你是在公有雲服務器上的
--kubeedge-version就是ke的版本
--token=
$ keadm gettoken
b75afee838d35d8208a6880381ceca1aa1a1d72e289d307723da210a87cc6bf0.eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE2MTMxMTAwMTJ9.jtrC0EBjuq3VpwIGQ21a5aPq5dr3wJniH6XGVnu_rKE
下面的這一大串就是token，這個token就是用於去拿ca證書的。
6. 檢查ke集群是否安裝完成
在master機器上執行
$ k get no
NAME STATUS ROLES AGE VERSION
didi-cloud Ready <none> 3d15h v1.19.7
k8s-master Ready master 4d v1.19.7
raspberrypi Ready agent,edge 16h v1.19.3-kubeedge-v1.5.0
樹莓派就是ke的邊緣節點，並且已經是ready，如果你的結果和我一樣，那么恭喜你，你的ke的集群已經搭建完成了。