docker - 如何使用 Cloud sql 代理通过 GKE 配置 Cloud SQL？

Question

我正在尝试在 Google Cloud Postgres 之间建立连接和 Google Kubernetes Engine使用 CloudSQL proxy .如果我查看两个工作负载的日志:
我正进入(状态:

2021-02-02T11:42:09.748706102Z2021/02/02 11:42:09 dial tcp 127.0.0.1:5432: connect: connection refused

我正在写下我使用所有真实文件关键字或文件名执行的所有步骤。
脚步

设置 google cloud cluster有 3 个节点。

设置 Postgres Google Cloud SQL 的实例.添加新用户 gothamuser密码是gothampass : 在 5432 端口上运行

设置 I am service账户通过gothamcity-gke@miles-789.iam.gserviceaccount.com并保存了config.json文件。

Docker file的链接[.1]

使用 gcloud builds submit --tag gcr.io/miles-789/gothamcity:0.10 . 构建容器

Deployment.yaml的链接[.2]

使用 kubectl create -f deployment.yaml 执行部署文件

service.yaml的链接[3]

使用 kubectl create -f service.yaml 执行服务文件

使用 kubectl create secret generic cloudsql-instance-credentials --from-file=cred.json=/Users/gotham/Downloads/cofig.json 创建云 SQL 实例

已创建 cloudsql-db credentials using kubectl create secret generic cloudsql-db-credentials --from-literal=username=gothamuser --from-literal=password=gothampass .没有提到数据库名称，因为我要连接多个数据库。

已添加 cloudsql-db-credentials和 cloudsql-instance-credentials在 psql.yaml文件

psql.yaml的链接文件 [4]

使用 kubectl create -f psql.yaml 执行此文件

Go 上的数据库配置项目 [5]

kubectl 命令截图
1 kubectl get nodes
2 kubectl get pods
提到的文件
[1.] docker

FROM golang:alpine AS build-env
ENV GOPATH /go
WORKDIR /go/src
COPY . /go/src/gothamcity

RUN cd /go/src/gothamcity && go build .

FROM alpine
RUN apk update && apk add ca-certificates && rm -rf /var/cache/apk*

WORKDIR /app
COPY --from=build-env /go/src/gothamcity/gothamcity /app
COPY .env /app

EXPOSE 5432
EXPOSE 8080

ENTRYPOINT [ "./gothamcity" ]

[2.] 部署.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: gothamcity-backend
spec:
  replicas: 1
  selector:
    matchLabels:
      app: gothamcity
  template:
    metadata:
      labels:
        app: gothamcity
    spec:
      containers:
      - name: gothamcity-app
        image: gcr.io/miles-789/gothamcity:0.10
        ports:
        - containerPort: 8080
        env:
          - name: PORT
            value: "8080"

[3] 服务.yaml

apiVersion: v1
kind: Service
metadata:
  name: gothamcity
spec:
  type: LoadBalancer
  selector:
    app: gothamcity
  ports:
  - port: 80
    targetPort: 8080

[4] psql.yaml

 apiVersion: apps/v1
kind: Deployment
metadata:
  name: gothamcity-psql-proxy
spec:
  selector:
    matchLabels:
      app: gothamcity
  template:
    metadata:
      labels:
        app: gothamcity
    spec:
      containers:
      - image: gcr.io/miles-789/gothamcity:0.10
        name: gothamcity-app
        env:
        - namee: DB_HOST
          value: 127.0.0.1
        - name: DB_USER
          valueFrom:
            secretKeyRef:
              name: cloudsql-db-credentials
              key: username
        - name: DB_PASS
          valueFrom:
            secretKeyRef:
              name: cloudsql-db-credentials
              key: password
        - name: DB_NAME
          valueFrom:
            secretKeyRef:
              name: cloudsql-db-credentials
              key: database
      - name: cloud-sql-proxy
        image: gcr.io/cloudsql-docker/gce-proxy:1.17
        command:
          - "/cloud_sql_proxy"
          - "-instances=miles-789:europe-east1:gotham-miles-v1=tcp:5432"
          - "-credential_file=/secrets/config.json"
        securityContext:
          runAsNonRoot: true
        volumeMounts:
        - name: cloudsql-instance-credentials
          mountPath: /secrets/
          readOnly: true
      volumes:
      - name: cloudsql-instance-credentials
        secret:
          secretName: cloudsql-instance-credentials

[5] 数据库配置

package dataservices

import "os"

const (
    dbhost = "DBHOST"
    dbport = "DBPORT"
    dbuser = "DBUSER"
    dbpass = "DBPASS"
    dbname = "DBNAME"
    env    = "ENV"
)

func dbConfig(database string) map[string]string {
    var host = os.Getenv("DB_HOST")
    var user = os.Getenv("DB_USER")
    var password = os.Getenv("DB_PASS")
    var name = database
    var port = "5432"
    conf := make(map[string]string)
    conf[dbhost] = host
    conf[dbport] = port
    conf[dbuser] = user
    conf[dbpass] = password
    conf[dbname] = name
    return conf
}

我不明白我在这里做错了什么。是错字还是我在这里缺少某种配置。

Answer 1

这是私有(private)集群吗？
如果是这样，您需要在同一个 VPC 上拥有 SQL DB(或拥有 VPC 对等)才能让您的应用程序访问 SQL DB
或者您需要在您的 VPC 上设置 Cloud NAT，以便集群与 SQL DB 对话
这可能很有用
https://groups.google.com/g/google-cloud-sql-discuss/c/6lA0r6zRfeI/m/hr8mRt9AGgAJ