https://github.com/ibrahimgunduz34/kubernetes-example-application
An example application based on Kubernetes that consist of two service instance communicate through messages between each other.
https://github.com/ibrahimgunduz34/kubernetes-example-application
example java kubernetes realworld
Last synced: 6 months ago
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An example application based on Kubernetes that consist of two service instance communicate through messages between each other.
- Host: GitHub
- URL: https://github.com/ibrahimgunduz34/kubernetes-example-application
- Owner: ibrahimgunduz34
- Created: 2019-11-11T14:37:08.000Z (almost 6 years ago)
- Default Branch: master
- Last Pushed: 2024-10-03T18:44:40.000Z (about 1 year ago)
- Last Synced: 2025-03-26T22:12:51.806Z (7 months ago)
- Topics: example, java, kubernetes, realworld
- Language: Java
- Size: 15.6 KB
- Stars: 5
- Watchers: 2
- Forks: 0
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
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README
# Image Collector
It allows to collect and download the images from multiple image gallery. Right now, it supports only Flickr.
The application runs in different modes as `collector` and `downloader`
## Prerequisites:
* Minikube
* Kubernetes console tool (kubectl)
* Docker
* VirtualBox, KVM2 or other hypervisors supported by minikube if you need it.
## How To Build The Project
```
$ docker build -t image-collector:latest -f infra/docker/Dockerfile .
```
## How To Run The Project as Collector
```
docker run -it \
-e SPRING_PROFILES_ACTIVE="collector" \
-e SPRING_RABBITMQ_HOST= \
image-collector:latest
```
## How To Run The Project as Downloader
```
docker run -it \
-e SPRING_PROFILES_ACTIVE="downloader" \
-e SPRING_RABBITMQ_HOST= \
-e DOWNLOAD_PATH=/path/to/download \
image-collector:latest
```
## Environment Variables:
**SPRING_PROFILES_ACTIVE**: (required) It can take one of`collector` or `downloader` values.
**SPRING_RABBITMQ_HOST** (default: localhost) Rabbitmq host machine
**SPRING_RABBITMQ_USER** (default: guest) Rabbitmq user
**SPRING_RABBITMQ_PASSWORD** (default: guest) Rabbitmq password
**DOWNLOAD_PATH** (default: application root) path to download the images
## How To Create A Rabbitmq Instance for Test Purpose
```$xslt
docker run -d \
--name=rabbitmq \
-p5672:5672 \
-p15672:15672 \
--hostname=rabbitmq \
-e RABBITMQ_ERLANG_COOKIE="rabbitmq" \
rabbitmq:3.8.0-management
```
## How To Run The Application By Using The Test RabbitMQ Instance
```
docker run \
-it \
--network=host \
-e SPRING_RABBITMQ_HOST=localhost \
... (Other environment variables that depend on the profile.) \
image-collector:latest
```
## How To Deploy The Project To Local Kubernetes Cluster
* Start minikube locally.
* Compile the application and build the docker image by the build script `infra/scripts/build_dev`. Before run the command, please uncomment the line 3. in the script, if you're using minikube with VM(s).
```
$ infra/scripts/build_dev
```
* Deploy the docker image to the local Kubernetes cluster by running the following command:
```
$ kubernetes apply -f infra/kub-config
```