Spring boot application to demonstrate how to access properties stored in Docker Swarm config.
How to run.
Create Docker config demo-config from demo-config.yaml
docker config create demo-config demo-config.yaml
Build project
./mvnw install
Build image
docker build -t demo-config .
Deploy docker stack
docker stack deploy -c docker-compose.yaml demo-config
Check output
docker service logs demo-config_demo
Note: External configs are supported in Docker Swarm mode only. If you want use Docker compose comment line external: true in docker-compose.yaml abd uncomment file: ./demo-config.yaml.