Question

我在docker容器上运行了一个spring boot microservice，下面是Dockerfile

FROM java:8-jre
MAINTAINER <>
WORKDIR deploy/
#COPY config/* /deploy/config/
COPY ./ms.console.jar /deploy/
CMD chmod +R 777 ./ms.console.jar
CMD ["java","-jar","/deploy/ms.console.jar","console"]
EXPOSE 8384

我的配置在这里存储在外部文件夹（即/config/console-server.yml中，当我启动该应用程序时，它将在内部加载配置（弹簧启动功能）。

现在，我想使用configmap分隔此配置，为此，我只创建了一个configmap并存储了所有配置详细信息。

kubectl创建configmap控制台-configmap   --from-file =。/ config / console-server.yml

kubectl描述configmap console-configmap

下面是描述详细信息：

Name:         console-configmap
Namespace:    default
Labels:       <none>
Annotations:  <none>

Data
====
console-server.yml:
----
server:
  http:
    port: 8385
  compression:
    enabled: true
    mime-types: application/json,application/xml,text/html,text/xml,text/plain,text/css,application/javascript
    min-response-size: 2048

---
spring:
  thymeleaf:
    prefix: classpath:/static
  application:
    name: console-service
  profiles:
     active: native
  servlet:
    multipart:
      max-file-size: 30MB
      max-request-size: 30MB
---
host:
  gateway: http://apigateway:4000
  webhook: http://localhost:9000

我的部署yml是：

apiVersion: apps/v1 # for versions before 1.8.0 use apps/v1beta1
kind: Deployment
metadata:
  name: consoleservice1
spec:
  selector:
    matchLabels:
      app: consoleservice
  replicas: 1 # tells deployment to run 3 pods matching the template
  template: # create pods using pod definition in this template
    metadata:
      labels:
        app: consoleservice
    spec:
      containers:
      - name: consoleservice
        image: ms-console
        ports:
        - containerPort: 8384
        imagePullPolicy: Always
        envFrom:
        - configMapRef:
            name: console-configmap
      imagePullSecrets:
        - name: regcresd

我的疑问是，我在Dockerfile中注释了config文件夹，因此在运行pods时，由于没有配置，它会引发异常，我将如何将此console-configmap注入到我的部署中，我尝试过共享的内容，但是遇到了相同的问题

Answer 1

首先，您如何在应用程序中使用.yml文件？如果将yml文件内容用作环境变量，则配置应该可以正常工作。但是我怀疑您想使用容器内配置文件中的内容。如果是这种情况，则必须从configmap中创建一个卷，如下所示：

Pool()

该文件将在路径apiVersion: apps/v1 # for versions before 1.8.0 use apps/v1beta1 kind: Deployment metadata: name: consoleservice1 spec: selector: matchLabels: app: consoleservice replicas: 1 # tells deployment to run 3 pods matching the template template: # create pods using pod definition in this template metadata: labels: app: consoleservice spec: containers: - name: consoleservice image: ms-console ports: - containerPort: 8384 imagePullPolicy: Always volumeMounts: - mountPath: /app/config name: config volumes: - name: config configMap: name: console-configmap imagePullSecrets: - name: regcresd中可用。您必须根据需要对其进行修改。

Answer 2

您是否需要从配置文件中将key：value对作为环境变量进行加载，然后按规范运行即可

envFrom:
        - configMapRef:
            name: console-configmap

如果需要将配置文件作为pod内的文件，则将配置文件作为卷挂载。以下链接会有所帮助 https://kubernetes.io/docs/tutorials/configuration/configure-redis-using-configmap/

如何从kubernetes pod获取configmap

2 个答案: