https://github.com/daggerok/from-zero-to-reactive-cloud-micro-hero
IN PROGRESS: Step 8. Using java spring-boot reactive webflux rsocket r2dbc docker compose docker swarm and k8s kubernetes https://daggerok.github.io/from-zero-to-reactive-cloud-micro-hero/
https://github.com/daggerok/from-zero-to-reactive-cloud-micro-hero
r2dbc r2dbc-postgres r2dbc-postgresql spring-boot-2 spring-webflux webflux-fallback
Last synced: about 2 months ago
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IN PROGRESS: Step 8. Using java spring-boot reactive webflux rsocket r2dbc docker compose docker swarm and k8s kubernetes https://daggerok.github.io/from-zero-to-reactive-cloud-micro-hero/
- Host: GitHub
- URL: https://github.com/daggerok/from-zero-to-reactive-cloud-micro-hero
- Owner: daggerok
- License: mit
- Created: 2019-10-17T18:13:42.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2020-02-19T15:07:28.000Z (over 5 years ago)
- Last Synced: 2025-04-05T10:23:12.704Z (3 months ago)
- Topics: r2dbc, r2dbc-postgres, r2dbc-postgresql, spring-boot-2, spring-webflux, webflux-fallback
- Language: Java
- Homepage:
- Size: 731 KB
- Stars: 3
- Watchers: 3
- Forks: 3
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# from zero to reactive cloud micro hero [](https://travis-ci.org/daggerok/from-zero-to-reactive-cloud-micro-hero)
Using java spring-boot reactive webflux r2dbc docker compose docker swarm and k8s kubernetes
## Status
IN PROGRESS
* ~~Configured Travis CI pipelines~~
* ~~Initialized draft and implement of VuePress documentation~~
* ~~Implemented step1 with sets of spring boot 2.2.o.RELEASE reactive applications~~
* ~~Implemented step2 with replacing in-memory map DBs -> r2dbc-postgres spring-data integration (run pg in docker)~~
* ~~Implemented step3 and Dockerize all applications using fabric8.io maven plugin~~
* ~~Implemented step4 and Dockerize multi-module application using fabric8.io maven plugin (all in one)~~
* ~~Implemented step5 with docker-compose maven plugin~~
* ~~Implemented step6 and Dockerize all applications using jib maven plugin from Google~~
* ~~Implemented step7 with docker-swarm~~
* Implemented step8 with k8s and skaffold
* Implemented step9 with k8s and helm-chart
* Implemented stepX with project riff
## Step 1
Simple sets of applications implementation for local run
```bash
./mvnw -DskipTests
java -jar step1-speakers-rest-api-service/target/*.jar
java -jar step1-sessions-rsocket-service/target/*.jar
java -jar step1-frontend/target/*.jar
#http :8082/speakers name=max
#http :8082/speakers name=bax
#http :8082/speakers
http :8080
```
## Step 2
Simple sets of r2dbc applications with postgres (in docker)
```bash
#./mvnw -pl :step2-docker docker:start
docker stop pg || true ; docker run --rm --name pg -p 5432:5432 postgres:alpine
./mvnw
java -jar step2-speakers-rest-api-service/target/*.jar
java -jar step2-sessions-rsocket-service/target/*.jar
java -jar step2-frontend/target/*.jar
#http :8084/sessions name=maximum speakers=max
#http :8084/sessions
#http :8085/speakers name=max
#http :8085/speakers
http :8083
#./mvnw -pl :step2-docker docker:stop
docker rm -f -v pg
```
## Step 3
An applications in docker using fabric8.io maven plugin
```bash
./mvnw -pl :step3-postgres-fabric8 docker:build docker:start
./mvnw -pl :step3-sessions-rsocket-service-fabric8,:step3-speakers-rest-api-service-fabric8,:step3-frontend-fabric8 clean package docker:build docker:start
#http :8087/sessions name=maximum speakers=max
#http :8088/speakers name=max
http :8086
./mvnw -pl :step3-speakers-rest-api-service-fabric8,:step3-sessions-rsocket-service-fabric8,:step3-frontend-fabric8 docker:stop docker:remove
./mvnw -f step3-postgres-fabric8/ docker:stop docker:remove
```
## Step 4
Dockerized multi-module application using fabric8.io maven plugin (all in one)
```bash
./mvnw -f step4-all-in-one-fabric8 clean package -DskipTests
./mvnw -f step4-all-in-one-fabric8 -pl :step4-all-in-one-fabric8 docker:build docker:start
#http :8090/sessions name=maximum speakers=max
#http :8091/speakers name=max
http :8089
./mvnw -f step4-all-in-one-fabric8 -pl :step4-all-in-one-fabric8 docker:stop docker:remove
```
## Step 5
Dockerized multi-module application using docker-compose maven plugin (all in one)
```bash
./mvnw -f step5-all-in-one-docker-compose -pl :step5-all-in-one-docker-compose docker:build docker:start
./mvnw -f step5-all-in-one-docker-compose
./mvnw -f step5-all-in-one-docker-compose -pl :step5-all-in-one-docker-compose docker:stop docker:remove
#./mvnw -pl :step5-all-in-one-docker-compose docker-compose:up
#http :8093/sessions name=maximum speakers=max
#http :8094/speakers name=max
http :8092
./mvnw -pl :step5-all-in-one-docker-compose docker-compose:down
```
## Step 6
Dockerized multi-module application using jib maven plugin from Google and docker-compose maven plugin (all in one)
```bash
./mvnw -pl :step6-all-in-one-google-jib -P pg-start
./mvnw -f step6-all-in-one-google-jib compile jib:dockerBuild
./mvnw -pl :step6-all-in-one-google-jib -P pg-stop
./mvnw -pl :step6-all-in-one-google-jib -P compose-create
./mvnw -pl :step6-all-in-one-google-jib -P compose-up
#http :8096/sessions name=maximum speakers=max
#http :8097/speakers name=max
http :8095
./mvnw -pl :step6-all-in-one-google-jib -P compose-down
```
## Step 7
Dockerized multi-module application using docker-swarm (all in one)
_prepare docker-swarm_
```bash
docker swarm init
docker service create --name registry --publish published=5000,target=5000 registry:2
```
_run test postgres container for success tests during build_
```bash
./mvnw -pl :step7-all-in-one-docker-swarm -P pg-start
./mvnw -f step7-all-in-one-docker-swarm compile jib:build
./mvnw -pl :step7-all-in-one-docker-swarm -P pg-stop
```
_test with docker-compose_
```bash
./mvnw -pl :step7-all-in-one-docker-swarm -P compose-create
./mvnw -pl :step7-all-in-one-docker-swarm -P compose-up
#http :8099/sessions name=maximum speakers=max
#http :8100/speakers name=max
http :8098
./mvnw -pl :step7-all-in-one-docker-swarm -P compose-down
```
_docker stack deploy_
```bash
docker stack deploy -c step7-all-in-one-docker-swarm/docker-compose.yml step7
#http :8100/speakers name=max | jq '.'
#http :8099/sessions name=maximum speakers=max | jq '.'
http :8098
docker stack rm step7
docker service rm registry
docker swarm leave -f
```
## Version
```bash
./mvnw build-helper:parse-version versions:set -DnewVersion=\${parsedVersion.majorVersion}.\${parsedVersion.minorVersion}.\${parsedVersion.nextIncrementalVersion} -DgenerateBackupPoms=false
```
## Cleanup
```bash
#docker rm -f -v `docker ps -aq`
for i in $(docker ps -aq) ; do docker rm -f -v $i ; done
#docker rmi -f `docker images -q --filter=dangling=true`
for i in $(docker images -q --filter=dangling=true) ; do docker rmi -f $i ; done
#docker rmi -f `docker images -q -f=reference='*/*step*'`
for i in $(docker images -q -f=reference='*/*step*') ; do docker rmi -f $i ; done
```
## GitHub Pages
Documentation is located [here](https://daggerok.github.io/from-zero-to-reactive-cloud-micro-hero/)
## Resources
For further reference, please consider the following sections:
* [GitHub: daggerok/k8s-nginx-ingress-example](https://github.com/daggerok/k8s-nginx-ingress-example)
* [YouTube: Kubernetes Master Class: Kubernetes from Zero to Hero](https://www.youtube.com/watch?v=srQJq1gJXRw)
* [YouTube: k3s -- The Lightweight Kubernetes Distribution Built for the Edge](https://www.youtube.com/watch?v=WYPd7i15XOg)
* [Official Apache Maven documentation](https://maven.apache.org/guides/index.html)
* [Spring Boot Maven Plugin Reference Guide](https://docs.spring.io/spring-boot/docs/2.2.0.RELEASE/maven-plugin/)
* [Spring Configuration Processor](https://docs.spring.io/spring-boot/docs/2.2.0.RELEASE/reference/htmlsingle/#configuration-metadata-annotation-processor)
* [Thymeleaf](https://docs.spring.io/spring-boot/docs/2.2.0.RELEASE/reference/htmlsingle/#boot-features-spring-mvc-template-engines)
* [Handling Form Submission](https://spring.io/guides/gs/handling-form-submission/)
* [Error handling](https://docs.spring.io/spring/docs/current/spring-framework-reference/web-reactive.html#webflux-ann-controller-exceptions)
* [ServerWebExchange injection](https://github.com/spring-projects/spring-framework/issues/19857#issuecomment-453452436)
* [R2DBC db initialization](https://github.com/spring-projects-experimental/spring-boot-r2dbc/blob/master/documentation.adoc#database-initialization)
* [Maven + Docker by using fabric.io](https://dmp.fabric8.io/)
* [Maven + Docker by using GoogleContainerTools/jib](GoogleContainerTools/jib) maven plugin
* [Postgres on Docker Hub](https://hub.docker.com/_/postgres)
* [Docker cleanup: docker images -f "dangling=true"](https://docs.docker.com/engine/reference/commandline/images/)
* [docker-compose-maven-plugin](https://github.com/dkanejs/docker-compose-maven-plugin)
* [Spring Boot Google JIB](https://github.com/GoogleContainerTools/jib/tree/master/examples/spring-boot)
* [Google JIB FAQ](https://github.com/GoogleContainerTools/jib/blob/master/docs/faq.md)
* [jib-maven-plugin](https://github.com/GoogleContainerTools/jib/tree/master/jib-maven-plugin)
* [YouTube: Speedy build for your java application images with JIB! by Mohammed Aboullaite](https://www.youtube.com/watch?v=bkC1spGOI7Y)
* [No fat jars with jib](https://phauer.com/2019/no-fat-jar-in-docker-image/)
* [Docker Swarm getting started guide](https://docs.docker.com/engine/swarm/stack-deploy/)
* [Docker Swarm -> k8s](https://hackernoon.com/a-kubernetes-guide-for-docker-swarm-users-c14c8aa266cc)
* [YouTujbe: Deploying and scaling applications with Docker, Swarm, and a tiny bit of Python magic - PyCon 2016](https://www.youtube.com/watch?v=GpHMTR7P2Ms)
* [YouTube: Deploy and scale containers with Docker native, open source orchestration PyCon 2017](https://www.youtube.com/watch?v=EuzoEaE6Cqs)
* [Container Training](https://container.training/)
* [k8s workshop](https://pycon2019.container.training/)