https://github.com/showpune/spring-petclinic-k8s-remote-debug
https://github.com/showpune/spring-petclinic-k8s-remote-debug
Last synced: about 1 year ago
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- Host: GitHub
- URL: https://github.com/showpune/spring-petclinic-k8s-remote-debug
- Owner: showpune
- License: apache-2.0
- Created: 2022-01-14T07:31:26.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2023-12-15T02:55:20.000Z (over 2 years ago)
- Last Synced: 2025-03-18T03:31:57.123Z (over 1 year ago)
- Language: CSS
- Size: 473 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: readme.md
- License: LICENSE.txt
Awesome Lists containing this project
README
# Spring PetClinic Sample Application [](https://travis-ci.org/spring-projects/spring-petclinic/)
## Understanding the Spring Petclinic application with a few diagrams
See the presentation here
## Running petclinic locally
Petclinic is a [Spring Boot](https://spring.io/guides/gs/spring-boot) application built using [Maven](https://spring.io/guides/gs/maven/). You can build a jar file and run it from the command line:
```
git clone https://github.com/spring-projects/spring-petclinic.git
cd spring-petclinic
./mvnw package
java -jar target/*.jar
```
You can then access petclinic here: http://localhost:8080/
Or you can run it from Maven directly using the Spring Boot Maven plugin. If you do this it will pick up changes that you make in the project immediately (changes to Java source files require a compile as well - most people use an IDE for this):
```
./mvnw spring-boot:run
```
> NOTE: Windows users should set `git config core.autocrlf true` to avoid format assertions failing the build (use `--global` to set that flag globally).
## In case you find a bug/suggested improvement for Spring Petclinic
Our issue tracker is available here: https://github.com/spring-projects/spring-petclinic/issues
## Database configuration
In its default configuration, Petclinic uses an in-memory database (H2) which
gets populated at startup with data. The h2 console is automatically exposed at `http://localhost:8080/h2-console`
and it is possible to inspect the content of the database using the `jdbc:h2:mem:testdb` url.
A similar setup is provided for MySql in case a persistent database configuration is needed. Note that whenever the database type is changed, the app needs to be run with a different profile: `spring.profiles.active=mysql` for MySql.
You could start MySql locally with whatever installer works for your OS, or with docker:
```
docker run -e MYSQL_USER=petclinic -e MYSQL_PASSWORD=petclinic -e MYSQL_ROOT_PASSWORD=root -e MYSQL_DATABASE=petclinic -p 3306:3306 mysql:5.7.8
```
Further documentation is provided [here](https://github.com/spring-projects/spring-petclinic/blob/main/src/main/resources/db/mysql/petclinic_db_setup_mysql.txt).
## Working with Petclinic in your IDE
### Prerequisites
The following items should be installed in your system:
* Java 8 or newer (full JDK not a JRE).
* git command line tool (https://help.github.com/articles/set-up-git)
* Your preferred IDE
* Eclipse with the m2e plugin. Note: when m2e is available, there is an m2 icon in `Help -> About` dialog. If m2e is
not there, just follow the install process here: https://www.eclipse.org/m2e/
* [Spring Tools Suite](https://spring.io/tools) (STS)
* IntelliJ IDEA
* [VS Code](https://code.visualstudio.com)
### Steps:
1) On the command line
```
git clone https://github.com/spring-projects/spring-petclinic.git
```
2) Inside Eclipse or STS
```
File -> Import -> Maven -> Existing Maven project
```
Then either build on the command line `./mvnw generate-resources` or using the Eclipse launcher (right click on project and `Run As -> Maven install`) to generate the css. Run the application main method by right clicking on it and choosing `Run As -> Java Application`.
3) Inside IntelliJ IDEA
In the main menu, choose `File -> Open` and select the Petclinic [pom.xml](pom.xml). Click on the `Open` button.
CSS files are generated from the Maven build. You can either build them on the command line `./mvnw generate-resources` or right click on the `spring-petclinic` project then `Maven -> Generates sources and Update Folders`.
A run configuration named `PetClinicApplication` should have been created for you if you're using a recent Ultimate version. Otherwise, run the application by right clicking on the `PetClinicApplication` main class and choosing `Run 'PetClinicApplication'`.
4) Navigate to Petclinic
Visit [http://localhost:8080](http://localhost:8080) in your browser.
## Looking for something in particular?
|Spring Boot Configuration | Class or Java property files |
|--------------------------|---|
|The Main Class | [PetClinicApplication](https://github.com/spring-projects/spring-petclinic/blob/main/src/main/java/org/springframework/samples/petclinic/PetClinicApplication.java) |
|Properties Files | [application.properties](https://github.com/spring-projects/spring-petclinic/blob/main/src/main/resources) |
|Caching | [CacheConfiguration](https://github.com/spring-projects/spring-petclinic/blob/main/src/main/java/org/springframework/samples/petclinic/system/CacheConfiguration.java) |
## Interesting Spring Petclinic branches and forks
The Spring Petclinic "main" branch in the [spring-projects](https://github.com/spring-projects/spring-petclinic)
GitHub org is the "canonical" implementation, currently based on Spring Boot and Thymeleaf. There are
[quite a few forks](https://spring-petclinic.github.io/docs/forks.html) in a special GitHub org
[spring-petclinic](https://github.com/spring-petclinic). If you have a special interest in a different technology stack
that could be used to implement the Pet Clinic then please join the community there.
## Interaction with other open source projects
One of the best parts about working on the Spring Petclinic application is that we have the opportunity to work in direct contact with many Open Source projects. We found some bugs/suggested improvements on various topics such as Spring, Spring Data, Bean Validation and even Eclipse! In many cases, they've been fixed/implemented in just a few days.
Here is a list of them:
| Name | Issue |
|------|-------|
| Spring JDBC: simplify usage of NamedParameterJdbcTemplate | [SPR-10256](https://jira.springsource.org/browse/SPR-10256) and [SPR-10257](https://jira.springsource.org/browse/SPR-10257) |
| Bean Validation / Hibernate Validator: simplify Maven dependencies and backward compatibility |[HV-790](https://hibernate.atlassian.net/browse/HV-790) and [HV-792](https://hibernate.atlassian.net/browse/HV-792) |
| Spring Data: provide more flexibility when working with JPQL queries | [DATAJPA-292](https://jira.springsource.org/browse/DATAJPA-292) |
# Contributing
The [issue tracker](https://github.com/spring-projects/spring-petclinic/issues) is the preferred channel for bug reports, features requests and submitting pull requests.
For pull requests, editor preferences are available in the [editor config](.editorconfig) for easy use in common text editors. Read more and download plugins at . If you have not previously done so, please fill out and submit the [Contributor License Agreement](https://cla.pivotal.io/sign/spring).
# License
The Spring PetClinic sample application is released under version 2.0 of the [Apache License](https://www.apache.org/licenses/LICENSE-2.0).
[spring-petclinic]: https://github.com/spring-projects/spring-petclinic
[spring-framework-petclinic]: https://github.com/spring-petclinic/spring-framework-petclinic
[spring-petclinic-angularjs]: https://github.com/spring-petclinic/spring-petclinic-angularjs
[javaconfig branch]: https://github.com/spring-petclinic/spring-framework-petclinic/tree/javaconfig
[spring-petclinic-angular]: https://github.com/spring-petclinic/spring-petclinic-angular
[spring-petclinic-microservices]: https://github.com/spring-petclinic/spring-petclinic-microservices
[spring-petclinic-reactjs]: https://github.com/spring-petclinic/spring-petclinic-reactjs
[spring-petclinic-graphql]: https://github.com/spring-petclinic/spring-petclinic-graphql
[spring-petclinic-kotlin]: https://github.com/spring-petclinic/spring-petclinic-kotlin
[spring-petclinic-rest]: https://github.com/spring-petclinic/spring-petclinic-rest
# Deployment with skaffold
## Build the application and deploy to Kubernetes
For a local cluster like Minikube or Docker Desktop you can simply run:
```bash
skaffold run --port-forward --profile=local --tail
```
For a remote cluster you need to specify the `default-repo` which is the registry prefix for the image that is being built. For Docker Hub the prefix would be your Docker ID, for other registries it would typically be the registry URL plus your project.
> **NOTE**: You must specify a registry prefix where you have permission to push images.
You can do this globally by running:
```bash
skaffold config set --global default-repo ${REGISTRY_PREFIX}
```
Or, you can set it for the current Kubernetes context:
```bash
skaffold config set default-repo ${REGISTRY_PREFIX}
```
Finally, you can specify it as part of the `run` command:
```bash
skaffold run --default-repo ${REGISTRY_PREFIX} --port-forward --tail
```
The `skaffold run` command will build the container image, deploy the application and port-forward the service to `localhost:8080`
Open another terminal window to interract with the application or Kubernetes API server.
You can use `kubectl get all` to verify that the resources were created.
If you leave out the `--port-forward` option then accessing the application's endpoint varies based on the type of Kubernetes cluster and ingress configuration you are using.
## Delete the application
To delete the deployment and the service from your Kubernetes cluster run:
```bash
skaffold delete
```