What can I do for best practice management properties?
I want to set different properties each deployed environment.
Some of my developer cannot detect my real server properties.
I want to build project using same command (using maven. not want to -P dev, -P production options)
I don't want to too many source code to load my properties.(like implements db access)
Can be continue my service without restart when some properties has been changed.
My service developed using spring-web.
You have 2 issues:
1) How to have your properties outside of the war file, I would suggest you do the following:
#PropertySource(value={"classpath:/config.properties", "file:${configRoot}/config.properties"}, ignoreResourceNotFound = true)
Then when you start your app you can specify configRoot as a system property to the JVM i.e -DconfigRoot=/var/config. You can then specify a default config which will be pulled from inside the war. Using the ignoreResourceNotFound if the file:${configRoot}/config.properties"} can not be found the first one will be used. i.e. you can have a default inside the war and override it at runtime with the JVM system parameter.
2) How to automatically refresh
Look at this answer to tell spring to refresh it's properties on a schedule:
Related
As we known that, we have some methods to set the profile, the priortity order is javaCode > commondline argument > jvm variable > os variable > config...
If I have 500 or more spring-boot-micro-services, what is the right way to set the profile variable?
The profile may be has 10 or more values such as prod/prod,sg/prod,us and others.
Thanks for your practical advise very much.
Maybe we can use template + os variable?
We can externalize the properties file in springboot app and make use of Springboot config server.
Here, we need to create one springboot application which will act as config server. On main class give #EnableConfigServer #SpringBootApplication.
Refer to https://spring.io/guides/gs/centralized-configuration/
You can create git repo for this, make branching based on your environments and give data/properties likewise. And deploy that particular branch on particular env, like config_UAT on UAT env.
I have different profiles based on environment wise and needs to load it. How i can achieve and also how to pass program arguments for Quarkus main application to take dev profile(spring.config.location=classpath:/config/dev/application.yml)
Is there a way to load databse configuration while starting #QuarkusMain. I have configured all the database configurations into one class and how this class can be load in main. Please suggest on this.
Quarkus 1.13 (and later), supports profile aware application.properties. Just name your file application-{profile}.properties and activate it with -Dquarkus.profile={profile}
If you want to load specific files, you can also use quarkus.config.locations. This is backed by SmallRye Config. Please check additional documentation here: https://smallrye.io/docs/smallrye-config/main/config/config.html
We've multi module SpringMVC project, each having separate applicationContext.xml, currently we have to edit the applicationContext.xml files for every module before we deploy. It's painful and error prone. Is there a way to have only one property file that all other will contexts look at. Then we only have to edit one property file before we build and deploy. Thanks in advance.
It sounds like you should be using Spring's Profile support, which allows you to specify separate properties files per environment. You can pass the application an environment property spring.profiles.active and set it to say, "dev", "test", or "prod".
If you're using Spring Boot it can then automatically pick up distinct configuration per environment, application.dev.properties or application.prod.properties which will overwrite the standard application.properties with environment specific configuration.
If not using Spring Boot you would just have configure your Properties Sources per profile.
This is most definitely the preferred approach to changing configuration files at build or deploy time.
Reference: http://docs.spring.io/spring/docs/current/spring-framework-reference/htmlsingle/#beans-environment
I am working on a spring boot application in which i have to set Environment specific properties from user home folder.
i dig Google for the same & found we can put different properties file (dev, test, production) under resources and then we have to tell spring boot which environment we want to use using spring.profiles.active=dev OR prod.
however, my requirement is quite different. i will put a file in user home in my system & want to read properties form that file. how can i do that, need guidance.
Helping hands will be highly appreciated.
From the Spring Boot docs:
You can also refer to an explicit location using the spring.config.location environment property (comma-separated list of directory locations, or file paths).
As the docs go on to state, this must be specified on the command line or as an environment variable.
$ java -jar myproject.jar --spring.config.location=classpath:/default.properties,classpath:/override.properties
We explain that use case in a Devoxx presentation using EnvironmentPostProcessor, please refer to this section of the presentation for more details. You can also find the code sample online.
Well, it seems in your case you dont need environment variable. For production server your property file will be staying in and in staging machine it is also staying at same place. So where ever you deploy it will pick from . IMO you don't need to set environment, you just have to point property file to
Now to define this path you have 2 ways..
- You can put static path in your code
- You can set environment variable like Property_Path and read it in spring boot application..
However If you want to go one step ahead, you can use spring cloud configuration manager, by passing application+profile name to it, CM can fetch property file from directly from git or file system for you ...
Having something like
security.user.password = plainTextPassword
inside Spring Boot’s application.properties is obviously an anti-pattern as it prevents the code from being pushed to a public SCM. In my non-Spring Boot projects I use
security.user.password = ${myPasswordFromMavenSettingsXML}
and put a corresponding <properties/> reference inside my pom.xml.
Using Maven’s resource filter plugin the passwords are replaced at build time so the application have access to actual plain text passwords after it has been build and deployed.
For some reason Maven’s resource filter plugin does not work in this case. Is there a way to not commit plain text passwords to an SCM and let Spring Boot to insert them at build time?
Spring boot has multiple mechanisms to provided externalized configuration. Some examples are command line arguments, environment variables and also application properties outside of your packaged JAR.
What I usually do:
Locally we configured several environment variables. Most (if not all) IDE's allow you to configure environment variables from within the run configuration.
For example if you don't want to expose the spring.datasource.password property you could set an environment variable called SPRING_DATASOURCE_PASSWORD.
When we deploy on another environment, we usually choose to add another application.properties or application.yml file within the same folder as the application JAR/WAR, since Spring boot picks that up as well.
Another solution is to use Spring cloud since it has a config service which can be used as a microservice to provide configuration. The configuration can be versioned using SCM as well, but you can put it on a separate system that is not connected to your source code.