Spring Cloud Config: NoSuchLabelException - spring

Question

I have a simple Spring Config Server application which consumes the configuration data from a GIT repository. This Config Server works perfectly as expected in my local and development environment. Once deployed to the production server though, I kept seeing this error: org.springframework.cloud.config.server.environment.NoSuchLabelException: No such label: master
Here is the whole JSON return:
{
"status": "DOWN",
"configServer": {
"status": "DOWN",
"repository": {
"application": "app",
"profiles": "default"
},
"error": "org.springframework.cloud.config.server.environment.NoSuchLabelException: No such label: master"
},
"discoveryComposite": {
"description": "Discovery Client not initialized",
"status": "UNKNOWN",
"discoveryClient": {
"description": "Discovery Client not initialized",
"status": "UNKNOWN"
}
},
"diskSpace": {
"status": "UP",
"total": 10434699264,
"free": 6599856128,
"threshold": 10485760
},
"refreshScope": {
"status": "UP"
},
"hystrix": {
"status": "UP"
}
}
So I traced it down to the spring-cloud-config GitHub repo, and saw that it is being thrown here: https://github.com/spring-cloud/spring-cloud-config/blob/b7afa2bb641913b89e32ae258bd6ec442080b9e6/spring-cloud-config-server/src/main/java/org/springframework/cloud/config/server/environment/JGitEnvironmentRepository.java#185 This error is thrown by GitCommand class's call() method on line 235 when a Git branch is not found. But I can't for the life of me understand why!!! I have double-checked and verified that the "master" branch does indeed exist in the GIT repository for configuration properties.
The application properties for the Config Server are defined in a bootstrap.yml file, as follows:
server:
port: 8080
management:
context-path: /admin
endpoints:
enabled: false
health:
enabled: true
logging:
level:
com.netflix.discovery: 'OFF'
org.springframework.cloud: 'DEBUG'
eureka:
instance:
leaseRenewalIntervalInSeconds: 10
statusPageUrlPath: /admin/info
healthCheckUrlPath: /admin/health
spring:
application:
name: config-service
cloud:
config:
enabled: false
failFast: true
server:
git:
uri: 'https://some-spring-config-repo.git'
username: 'fakeuser'
password: 'fakepass'
basedir: "${catalina.home}/target/config"`
Any help would be most appreciated!!

Answer 1

Posting this in case someone else finds this uselful
I'm using the below setting in the properties file of the config server to indicate the "main" branch
spring.cloud.config.server.git.default-label=main
Additional info - my git repo is not public , I'm using the new personal access token based authentication instead of the older username/password authentication