Getting Kubernetes Config Map values into application.properties in Spring Boot-CodePudding

In our project we are deploying our Spring Boot based microservices into Azure using Azure Kubernetes Service and we have a Jenkins Job that creates ConfigMaps with appropriate DB names using Azure CLI . Now I want to get the values of DB Names from the ConfigMap created by Jenkins in my Spring Boot application.properties . Jenkins job uses following code to create a configmap in AKS

sh '''
     kubectl --kubeconfig ./temp-config create configmap generic ${PSQL_CONFIG} -n "${HEC_NAMESPACE}" \
     --from-literal=hec.postgres.host=${PSQL_SERVER} \
     --from-literal=hec.postgres.dbNames=[${DB_NAMES}] \
     --dry-run=client -o yaml | kubectl --kubeconfig ./temp-config apply ${DRYRUN} -f 
   '''

Now to get the value of variable DB_NAMES in my Spring Boot app ,

1. Should I create a configMap inside a Spring Boot project and load the DB Values ?

2. Or should I set the DB_NAMES variable in the application.properties like hec.postgres.db-name={DB_NAMES}

Once I have DB_NAMES values populated then I can use the way I want in my Code Please let me know which approach is good

CodePudding user response：

yes, define DB_NAMES varaible and value in configmap object and load the values from configmap as environment variables inside the container. use those environment variables in the springboot properties file.