1. Создать ConfigMap:

Файл: postgres-configmap.yaml:

apiVersion: v1

kind: ConfigMap

metadata:

name: postgres-config

labels:

app: postgres

data:

POSTGRES_DB: postgresdb

POSTGRES_USER: postgresadmin

POSTGRES_PASSWORD: admin123

Команда:

$ kubectl create -f postgres-configmap.yaml

configmap "postgres-config" created

2. Создать PersistentVolume:

Файл: postgres-storage.yaml:

kind: PersistentVolume

apiVersion: v1

metadata:

name: postgres-pv-volume

labels:

type: local

app: postgres

spec:

storageClassName: manual

capacity:

storage: 5Gi

accessModes:

- ReadWriteMany

hostPath:

path: "/mnt/data"

---

kind: PersistentVolumeClaim

apiVersion: v1

metadata:

name: postgres-pv-claim

labels:

app: postgres

spec:

storageClassName: manual

accessModes:

- ReadWriteMany

resources:

requests:

storage: 5Gi

Команда:

$ kubectl create -f postgres-storage.yaml

persistentvolume "postgres-pv-volume" created

persistentvolumeclaim "postgres-pv-claim" created

3. Создать Deployment:

Файл: postgres-deployment.yaml:

apiVersion: extensions/v1beta1

kind: Deployment

metadata:

name: postgres

spec:

replicas: 1

template:

metadata:

labels:

app: postgres

spec:

containers:

- name: postgres

image: postgres:10.4

imagePullPolicy: "IfNotPresent"

ports:

- containerPort: 5432

envFrom:

- configMapRef:

name: postgres-config

volumeMounts:

- mountPath: /var/lib/postgresql/data

name: postgredb

volumes:

- name: postgredb

persistentVolumeClaim:

claimName: postgres-pv-claim

Команда:

$ kubectl create -f postgres-deployment.yaml

deployment "postgres" created

4. Создать Service:

Файл: postgres-service.yaml:

apiVersion: v1

kind: Service

metadata:

name: postgres

labels:

app: postgres

spec:

type: NodePort

ports:

- port: 5432

selector:

app: postgres

Команда:

$ kubectl create -f postgres-service.yaml

service "postgres" created