Spring boot 来自kubernetes yaml原因的变量：无法解析占位符'；执行机构密码'；“在价值上”${U密码}"；

当我从IntelliJ运行我的应用程序时，我得到一个

警告/错误

，尽管应用程序构建良好并运行了所有测试，但这是我应该忽略的，还是可以解决的

Kubernetes secret用于创建随机密码，因此我为该特定变量设置了占位符

2019-02-26 19:45:29.600  INFO 38918 --- [           main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2019-02-26 19:45:29.684  WARN 38918 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'actuatorSecurity': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'ACTUATOR_PASSWORD' in value "${ACTUATOR_PASSWORD}"
2019-02-26 19:45:29.685  INFO 38918 --- [           main] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2019-02-26 19:45:29.685  INFO 38918 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown initiated...
2019-02-26 19:45:29.707  INFO 38918 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown completed.
2019-02-26 19:45:29.713  INFO 38918 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]

qronicle部署.yaml

apiVersion: v1
kind: Secret
metadata:
  name: actuator
  namespace: {{ .Release.Namespace }}
type: Opaque
data:
  actuator-password: {{ randAlphaNum 10 | b64enc | quote }}
....
- name: ACTUATOR_PASSWORD
  valueFrom:
    secretKeyRef:
      name: actuator
      key: actuator-password

application.properties

# spring boot actuator access control
management.endpoints.web.exposure.include=*
security.user.actuator-username=admin
security.user.actuator-password=${ACTUATOR_PASSWORD}

执行器密码

在此处使用

@Configuration
@EnableWebSecurity
class ActuatorSecurity : WebSecurityConfigurerAdapter() {
    @Value("\${security.user.actuator-username}")
    private val actuatorUsername: String? = null

    @Value("\${security.user.actuator-password}")
    private val actuatorPassword: String? = null

    ....
}

---

通常，对于机密，您将在部署yaml之外装载它

在这里，您可以在节点将要运行的k8上下文下运行

kubectl create secret generic--from literal='

---

这将在那里创建一个秘密，上面的部署yaml将把它映射到一个环境变量。

这将在

应用程序.properties

文件中实现这一点

2019-02-26 19:45:29.600  INFO 38918 --- [           main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2019-02-26 19:45:29.684  WARN 38918 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'actuatorSecurity': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'ACTUATOR_PASSWORD' in value "${ACTUATOR_PASSWORD}"
2019-02-26 19:45:29.685  INFO 38918 --- [           main] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2019-02-26 19:45:29.685  INFO 38918 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown initiated...
2019-02-26 19:45:29.707  INFO 38918 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown completed.
2019-02-26 19:45:29.713  INFO 38918 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]

security.user.password=${u密码：admin123}

其中，如果未提供环境变量，则将使用

admin123