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fix typo for homeworks 13 directory

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dannc
2022-12-23 09:46:05 +07:00
parent b5268a1370
commit 2e7a604149
67 changed files with 9 additions and 9 deletions
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23
src/homework/13-kubernetes-config/13.4/project/.helmignore Normal file
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# Patterns to ignore when building packages.
# This supports shell glob matching, relative path matching, and
# negation (prefixed with !). Only one pattern per line.
.DS_Store
# Common VCS dirs
.git/
.gitignore
.bzr/
.bzrignore
.hg/
.hgignore
.svn/
# Common backup files
*.swp
*.bak
*.tmp
*.orig
*~
# Various IDEs
.project
.idea/
*.tmproj
.vscode/

24
src/homework/13-kubernetes-config/13.4/project/Chart.yaml Normal file
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apiVersion: v2
name: project
description: A Helm chart for Kubernetes
# A chart can be either an 'application' or a 'library' chart.
#
# Application charts are a collection of templates that can be packaged into versioned archives
# to be deployed.
#
# Library charts provide useful utilities or functions for the chart developer. They're included as
# a dependency of application charts to inject those utilities and functions into the rendering
# pipeline. Library charts do not define any templates and therefore cannot be deployed.
type: application
# This is the chart version. This version number should be incremented each time you make changes
# to the chart and its templates, including the app version.
# Versions are expected to follow Semantic Versioning (https://semver.org/)
version: 1.0.0
# This is the version number of the application being deployed. This version number should be
# incremented each time you make changes to the application. Versions are not expected to
# follow Semantic Versioning. They should reflect the version the application is using.
# It is recommended to use it with quotes.
appVersion: "1.0.0"

6
src/homework/13-kubernetes-config/13.4/project/templates/NOTES.txt Normal file
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---------------------------------------------------------
Content of NOTES.txt appears after deploy.
Deployed version {{ .Chart.AppVersion }}.
---------------------------------------------------------

6
src/homework/13-kubernetes-config/13.4/project/templates/_helpers.tpl Normal file
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{{/*
Dynamic hostpath for database PV
*/}}
{{- define "project.database.pv.hostpath" -}}
{{- print .Values.database.hostVolumePath "/" .Release.Namespace "/" .Values.environment }}
{{- end }}

33
src/homework/13-kubernetes-config/13.4/project/templates/backend_deployment.yaml Normal file
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---
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: {{ .Chart.Name }}-{{ .Values.environment }}
service: backend
name: {{ .Chart.Name }}-{{ .Values.environment }}-backend
spec:
replicas: {{ .Values.backend.replicasCount }}
selector:
matchLabels:
app: {{ .Chart.Name }}-{{ .Values.environment }}
service: backend
template:
metadata:
labels:
app: {{ .Chart.Name }}-{{ .Values.environment }}
service: backend
spec:
containers:
- image: {{ .Values.image.name }}:backend-latest
imagePullPolicy: Always
name: backend
env:
- name: DATABASE_URL
value: "postgresql://{{ .Values.database.settings.user }}:{{ .Values.database.settings.password }}@postgres:5432/{{ .Values.database.settings.dbName }}"
ports:
- name: web
containerPort: 9000
resources:
{{- toYaml .Values.backend.resources | nindent 12 }}
terminationGracePeriodSeconds: 30

12
src/homework/13-kubernetes-config/13.4/project/templates/backend_service.yaml Normal file
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---
apiVersion: v1
kind: Service
metadata:
name: {{ .Chart.Name }}-{{ .Values.environment }}-backend
spec:
ports:
- name: web
port: 9000
selector:
app: {{ .Chart.Name }}-{{ .Values.environment }}
service: backend

13
src/homework/13-kubernetes-config/13.4/project/templates/database_configmap.yaml Normal file
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---
apiVersion: v1
kind: ConfigMap
metadata:
name: {{ .Chart.Name }}-{{ .Values.environment }}-postgres-config
labels:
app: {{ .Chart.Name }}-{{ .Values.environment }}
service: database
data:
POSTGRES_DB: {{ .Values.database.settings.dbName }}
POSTGRES_USER: {{ .Values.database.settings.user }}
POSTGRES_PASSWORD: {{ .Values.database.settings.password }}
PGDATA: {{ .Values.database.settings.dbPath | quote }}

17
src/homework/13-kubernetes-config/13.4/project/templates/database_pv.yaml Normal file
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---
apiVersion: v1
kind: PersistentVolume
metadata:
name: {{ .Chart.Name }}-{{ .Values.environment }}-{{.Release.Namespace}}-postgres-pv-volume
labels:
type: local
app: {{ .Chart.Name }}-{{ .Values.environment }}
service: database
spec:
storageClassName: manual
capacity:
storage: 1Gi
accessModes:
- ReadWriteMany
hostPath:
path: {{ include "project.database.pv.hostpath" . | quote }}

15
src/homework/13-kubernetes-config/13.4/project/templates/database_pvc.yaml Normal file
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---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: {{ .Chart.Name }}-{{ .Values.environment }}-postgres-pv-claim
labels:
app: {{ .Chart.Name }}-{{ .Values.environment }}
service: database
spec:
storageClassName: manual
accessModes:
- ReadWriteMany
resources:
requests:
storage: 1Gi

17
src/homework/13-kubernetes-config/13.4/project/templates/database_service.yaml Normal file
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---
apiVersion: v1
kind: Service
metadata:
name: {{ .Chart.Name }}-{{ .Values.environment }}-database
spec:
type: ClusterIP
clusterIP: None
ports:
- name: {{ .Chart.Name }}-{{ .Values.environment }}-postgresql
port: 5432
targetPort: 5432
protocol: TCP
selector:
app: {{ .Chart.Name }}-{{ .Values.environment }}
service: database
db-kind: postgresql

46
src/homework/13-kubernetes-config/13.4/project/templates/database_statefulset.yaml Normal file
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---
apiVersion: apps/v1
kind: StatefulSet
metadata:
labels:
app: {{ .Chart.Name }}-{{ .Values.environment }}
service: database
db-kind: postgresql
name: {{ .Chart.Name }}-{{ .Values.environment }}-database
spec:
selector:
matchLabels:
app: {{ .Chart.Name }}-{{ .Values.environment }}
service: database
db-kind: postgresql
serviceName: postgres
replicas: 1
podManagementPolicy: "Parallel"
updateStrategy:
type: "RollingUpdate"
template:
metadata:
labels:
app: {{ .Chart.Name }}-{{ .Values.environment }}
service: database
db-kind: postgresql
spec:
terminationGracePeriodSeconds: 60
containers:
- name: postgres
image: postgres:13-alpine
imagePullPolicy: "IfNotPresent"
ports:
- name: postgresql
containerPort: 5432
protocol: TCP
envFrom:
- configMapRef:
name: {{ .Chart.Name }}-{{ .Values.environment }}-postgres-config
volumeMounts:
- mountPath: {{ .Values.database.settings.dbPath | quote }}
name: {{ .Chart.Name }}-{{ .Values.environment }}-postgres-volume
volumes:
- name: {{ .Chart.Name }}-{{ .Values.environment }}-postgres-volume
persistentVolumeClaim:
claimName: {{ .Chart.Name }}-{{ .Values.environment }}-postgres-pv-claim

33
src/homework/13-kubernetes-config/13.4/project/templates/frontend_deployment.yaml Normal file
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---
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: {{ .Chart.Name }}-{{ .Values.environment }}
service: frontend
name: {{ .Chart.Name }}-{{ .Values.environment }}-frontend
spec:
replicas: {{ .Values.frontend.replicasCount }}
selector:
matchLabels:
app: {{ .Chart.Name }}-{{ .Values.environment }}
service: frontend
template:
metadata:
labels:
app: {{ .Chart.Name }}-{{ .Values.environment }}
service: frontend
spec:
containers:
- image: {{ .Values.image.name }}:frontend-latest
imagePullPolicy: Always
name: frontend
env:
- name: BASE_URL
value: "http://{{ .Chart.Name }}-{{ .Values.environment }}-backend:9000"
ports:
- name: web
containerPort: 80
resources:
{{- toYaml .Values.frontend.resources | nindent 12 }}
terminationGracePeriodSeconds: 30

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src/homework/13-kubernetes-config/13.4/project/values.yaml Normal file
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environment: production
image:
name: dannecron/netology-devops-k8s-app
backend:
replicasCount: 1
resources:
limits:
cpu: 200m
memory: 256Mi
requests:
cpu: 100m
memory: 128Mi
frontend:
replicasCount: 1
resources:
limits:
cpu: 200m
memory: 256Mi
requests:
cpu: 100m
memory: 128Mi
database:
settings:
user: db_user
password: db_passwd
dbName: news
dbPath: "/var/lib/postgresql/data"
hostVolumePath: "/mnt/pgsql_data"

184
src/homework/13-kubernetes-config/13.4/readme.md Normal file
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Выполнение [домашнего задания](https://github.com/netology-code/devkub-homeworks/blob/main/13-kubernetes-config-04-helm.md)
по теме "13.4. инструменты для упрощения написания конфигурационных файлов. Helm и Jsonnet"
## Q/A
> В работе часто приходится применять системы автоматической генерации конфигураций.
> Для изучения нюансов использования разных инструментов нужно попробовать упаковать приложение каждым из них.
### Задание 1
> Подготовить helm чарт для приложения.
>
> Необходимо упаковать приложение в чарт для деплоя в разные окружения. Требования:
> * каждый компонент приложения деплоится отдельным deployment’ом/statefulset’ом;
> * в переменных чарта измените образ приложения для изменения версии.
Helm-чарт находится в директории [project](./project). Каждый компонент приложения выделен в отдельный шаблон.
Различные переменные вынесены в файл [values.yaml](./project/values.yaml).
### Задание 2
> Запустить 2 версии в разных неймспейсах.
>
> Подготовив чарт, необходимо его проверить. Попробуйте запустить несколько копий приложения:
> * одну версию в namespace=app1;
> * вторую версию в том же неймспейсе;
> * третью версию в namespace=app2.
Перед выполнением команд `helm`, необходимо создать новый неймспейс `app1` в кластере. Для этого нужно выполнить следующую команду:
```shell
kubectl create namespace app1
```
И убедиться, что новый неймспейс есть в списке:
```shell
kubectl get ns
```
```text
NAME STATUS AGE
app1 Active 66s
default Active 35m
kube-node-lease Active 35m
kube-public Active 35m
kube-system Active 35m
```
Для деплоя chart необходимо выполнить команду:
```shell
helm install --namespace=app1 netology-project project
```
```text
NAME: netology-project
LAST DEPLOYED: Tue Dec 20 10:46:14 2022
NAMESPACE: app1
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
---------------------------------------------------------
Content of NOTES.txt appears after deploy.
Deployed version 1.0.0.
---------------------------------------------------------
```
Следующим шагом нужно проверить, что chart появился в списке:
```shell
helm list --namespace=app1
```
```text
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
netology-project app1 1 2022-12-20 10:46:14.3054387 +0700 +07 deployeproject-1.0.0 1.0.0
```
И что все поды запустились:
```shell
kubectl get po --namespace app1
```
```text
NAME READY STATUS RESTARTS AGE
project-production-backend-768887dd4b-8zb7h 1/1 Running 0 102s
project-production-database-0 1/1 Running 0 102s
project-production-frontend-74d8bb648d-9tc6g 1/1 Running 0 102s
```
Предполагается, что в том же неймспейсе необходимо развернуть данное приложение, но с другим `environment`
и с количеством реплик backend равным 2.
Для этого нужно выполнить следующую команду:
```shell
helm install --namespace=app1 --set "environment=testing" --set "backend.replicasCount=2" netology-project-test project
```
```text
NAME: netology-project-test
LAST DEPLOYED: Tue Dec 20 10:48:34 2022
NAMESPACE: app1
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
---------------------------------------------------------
Content of NOTES.txt appears after deploy.
Deployed version 1.0.0.
---------------------------------------------------------
```
Следующим шагом проверим состояние подов:
```shell
kubectl get po --namespace app1
```
```text
NAME READY STATUS RESTARTS AGE
project-production-backend-768887dd4b-8zb7h 1/1 Running 0 2m38s
project-production-database-0 1/1 Running 0 2m38s
project-production-frontend-74d8bb648d-9tc6g 1/1 Running 0 2m38s
project-testing-backend-688cb58bdc-5fqfd 1/1 Running 0 19s
project-testing-backend-688cb58bdc-hz9jp 1/1 Running 0 19s
project-testing-database-0 1/1 Running 0 18s
project-testing-frontend-7648dfbcb6-t7mv9 1/1 Running 0 19s
```
Затем необходимо сделать деплой в новый неймспейс. Для этого необходимо выполнить команду:
```shell
helm install --namespace=app2 --create-namespace netology-project-app2 project
```
```text
NAME: netology-project
LAST DEPLOYED: Tue Dec 20 10:53:35 2022
NAMESPACE: app2
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
---------------------------------------------------------
Content of NOTES.txt appears after deploy.
Deployed version 1.0.0.
---------------------------------------------------------
```
Далее нужно проверить, что деплой прошёл и поды запустились:
```shell
helm --namespace=app2 list
```
```text
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
netology-project app2 1 2022-12-20 10:53:35.7784271 +0700 +07 deployeproject-1.0.0 1.0.0
```
```shell
kubectl get po --namespace=app2
```
```text
NAME READY STATUS RESTARTS AGE
project-production-backend-768887dd4b-m8sb7 1/1 Running 0 101s
project-production-database-0 1/1 Running 0 101s
project-production-frontend-74d8bb648d-wrm49 1/1 Running 0 101s
```
_Note:_ Была проблема с созданием `PV`. По всей видимости вольюм создаётся глобально, вне неймспейсов.
Таким образом, пришлось сделать название объекта `PV` зависимым от неймспейса, в котором запускается деплой `helm`.