johnburbridge / spring-sandbox

Spring Sandbox

John's experiments with Spring Boot.

Development Setup

/etc/hosts

You must setup an alias for dev.metabuild.org mapping to localhost. I.e:

127.0.0.1 localhost dev.metabuild.org

Redis

Note that in order to run integration tests, you must have redis up and running:

docker-compose up -d redis

Building

./gradlew clean test bootJar docker

Running a minimal stack

Using docker-compose for a single node for each service:

docker-compose up -d

You can access the API here:

http://dev.metabuild.org:8080/swagger-ui.html

And the front-end here:

http://dev.metabuild.org:8081/home

Username: [email protected]
Password: test

And the admin page here:

http://dev.metabuild.org:8081/admin

Username: [email protected]
Password: Passw0rd

Running a better stack

Using docker swarm for multiple frontends and HAProxy:

docker swarm init
docker stack deploy --compose-file=docker-swarm.yml dev

In addition to the services above, now you can also access HAProxy on port 80:

http://dev.metabuild.org

spring-sandbox's Issues

Implement SSL

No calls over clear text.

Parameterize seeded user/passwords

As an installer, I'd like to be able to customize the default user/password for the admin and read-only accounts that are seeded when the backend starts up.

Front-end MVP

Requirements:

• Authentication (Oauth)
  • Register
  • Login
  • Logout
  • Remember Me
• View tasks
• Create new tasks
• Delete existing tasks

Split auth into its own microservice

Deploy to k8 using Helm

Scale API

Deploy a persistence layer to allow multiple API servers to cache common service calls.
Define how to cache common calls.

Implement basic auth for backend

Scale FE with shared sessions

Store user sessions in a message queue so we can scale up the number of FE hosts.

Gradle :api:dockerTagVersion FAILED

➜  spring-sandbox git:(feature/redis-shared-sessions) gradle -p api dockerPush                                          

> Task :api:dockerTagVersion FAILED
Error parsing reference: "0.0.6-SNAPSHOT" is not a valid repository/tag: invalid reference format: repository name must be lowercase

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':api:dockerTagVersion'.
> Process 'command 'docker'' finished with non-zero exit value 1

Research feature-flagging framework

Rather than rolling our own, why not use a framework that already has everything built in?

Need object mapper that works with Kotlin

I tried implementing ModelMapper with bad results (doesn't work). For now we're manually mapping but it would be great to have this done in a more automatic way.

This post on Stack Overflow has some interesting suggestions for how to roll your own. I ended up going with the first option (the simplest):

https://stackoverflow.com/questions/39199426/better-way-to-map-kotlin-data-objects-to-data-objects

See e41772b

Automate versioning

Need to implement some form of versioning that is automated and doesn't require manually editing build.gradle. There are a few Gradle versioning plugins that look interesting, just need to evaluate, pick one and implement.