新增learn-kubernetes（https://github.com/yyong-brs/learn-kubernetes）相关文件
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learn/learn-kubernetes-master/kiamol/ch10/lab/README.md
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learn/learn-kubernetes-master/kiamol/ch10/lab/README.md
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# Ch10 lab
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Run the app using plain manifests (from this `lab` folder):
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```
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kubectl apply -f ./todo-list/
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```
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Get the URL and browse:
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```
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kubectl get svc todo-web -o jsonpath='http://{.status.loadBalancer.ingress[0].*}:8080'
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```
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## Sample Solution
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My Helm chart templates the Kubernetes manifests for all the resources:
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- [templates/todo-web-configMap.yaml](./ch10-lab-solution/templates/todo-web-configMap.yaml)
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- [templates/todo-web-deployment.yaml](./ch10-lab-solution/templates/todo-web-deployment.yaml)
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- [templates/todo-web-service.yaml](./ch10-lab-solution/templates/todo-web-service.yaml)
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The [default values](./ch10-lab-solution/values.yaml) specify the Test environment and a Service port of 8080.
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Validate the chart:
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```
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helm lint ./ch10-lab-solution
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```
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Install the test setup:
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```
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helm install lab-test ./ch10-lab-solution
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```
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> You can browse on port 8080, and the /config path returns a 404
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Install the dev setup:
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```
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helm install -f dev-values.yaml lab-dev ./ch10-lab-solution
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```
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> You can browse on port 8088, and the /config path is working
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## Teardown
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Uninstall the Helm releases:
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```
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helm uninstall lab-test lab-dev
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```
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Delete other lab resources by their labels:
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```
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kubectl delete all -l kiamol=ch10-lab
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```
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# Patterns to ignore when building packages.
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# This supports shell glob matching, relative path matching, and
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# negation (prefixed with !). Only one pattern per line.
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.DS_Store
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# Common VCS dirs
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.git/
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.gitignore
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.bzr/
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.bzrignore
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.hg/
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.hgignore
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.svn/
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# Common backup files
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*.swp
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*.bak
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*.tmp
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*.orig
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*~
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# Various IDEs
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.project
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.idea/
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*.tmproj
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.vscode/
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apiVersion: v2
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name: ch10-lab-solution
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description: Solution to Kiamol ch10 lab
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type: application
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version: 0.1.0
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appVersion: 1.0.0
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: {{ .Release.Name }}-config
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labels:
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kiamol: ch10-lab
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data:
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config.json: |-
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{
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"ConfigController": {
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"Enabled" : {{ .Values.configControllerEnabled }}
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}
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}
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: {{ .Release.Name }}
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labels:
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kiamol: ch10-lab
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spec:
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selector:
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matchLabels:
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app: {{ .Release.Name }}
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environment: {{ .Values.environment | lower }}
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template:
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metadata:
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labels:
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app: {{ .Release.Name }}
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environment: {{ .Values.environment | lower }}
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spec:
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containers:
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- name: web
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image: kiamol/ch04-todo-list
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env:
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- name: ASPNETCORE_ENVIRONMENT
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value: {{ .Values.environment | title }}
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volumeMounts:
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- name: config
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mountPath: "/app/config"
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readOnly: true
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volumes:
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- name: config
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configMap:
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name: {{ .Release.Name }}-config
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apiVersion: v1
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kind: Service
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metadata:
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name: {{ .Release.Name }}
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labels:
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kiamol: ch10-lab
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spec:
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ports:
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- port: {{ .Values.servicePort }}
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targetPort: 80
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selector:
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app: {{ .Release.Name }}
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environment: {{ .Values.environment | lower }}
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type: {{ .Values.serviceType }}
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# environment - Dev, Test or Prod
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environment: Test
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# whether the config UI is enabled
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configControllerEnabled: false
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# port for the Service:
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servicePort: 8080
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# type of the Service:
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serviceType: LoadBalancer
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environment: Dev
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configControllerEnabled: true
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servicePort: 8088
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: todo-web-config
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labels:
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kiamol: ch10-lab
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# ConfigController.Enabled should be parameterized
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data:
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config.json: |-
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{
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"ConfigController": {
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"Enabled" : false
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}
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}
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: todo-web # this needs to be templated
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labels:
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kiamol: ch10-lab
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spec:
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selector:
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matchLabels: # this needs to be templated
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app: todo-web
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environment: test
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template:
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metadata:
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labels: # this needs to be templated
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app: todo-web
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environment: test
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spec:
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containers:
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- name: web
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image: kiamol/ch04-todo-list
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env:
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- name: ASPNETCORE_ENVIRONMENT
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value: Test # this should be parameterized
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volumeMounts:
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- name: config
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mountPath: "/app/config"
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readOnly: true
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volumes:
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- name: config
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configMap:
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name: todo-web-config # this needs to be templated
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apiVersion: v1
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kind: Service
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metadata:
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name: todo-web # this needs to be templated
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labels:
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kiamol: ch10-lab
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spec:
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ports:
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- port: 8081 # this should be parameterized
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targetPort: 80
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selector: # this needs to be templated
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app: todo-web
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environment: test
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type: LoadBalancer # this should be parameterized
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