Java apps have traditionally managed TrustStores and KeyStores as regular files on the filesystem in JKS format with keytool.
This mechanism was fine when the state-of-the-art in system administration required copying files from server to server.
But in the era of the cloud, our apps need a better system.
A flurry of security vulnerabilities
in the last couple of years have accelerated the deprecation of many
cryptographic protocols and cipher suites. As a result, you might have run into this error if you use JRuby:
The PostgreSQL JDBC Driver defaults to using an unencrypted connection.
At Heroku, this presented a problem when
we decided to move certain database types to dedicated single-tenant instances. Our hope was to improve
performance for our customers without them needing to change a single line of code. But the new database instances
required an SSL connection, which meant our customers would need to adjust their database configuration before we
could migrate them.
In this article, you'll create a simple ClojureScript application with Leiningen, Figwheel, Om and a few other libraries from the Chestnut template. Then you'll learn how to deploy that application as an Uberjar to Heroku.
In this post, you'll learn how to deploy a Docker-based Gradle application to Heroku using the Heroku Docker CLI. We'll use a simple Ratpack app as an example, but you can follow along with any Gradle application. This is a Mac and Linux guide only (until Docker supports docker-compose on Windows).
In this post, you'll learn how to deploy a Docker-based Clojure application to Heroku using the Heroku Docker CLI. We'll use the Immutant Feature Demo as an example, but you can follow along with any Clojure application as long as it uses Leiningen to build an uberjar. This is a Mac and Linux guide only (until Docker supports docker-compose on Windows).
Many Ruby developers have turned to Node.js because it allows them to do the kind of asynchronous programming that improves throughput, latency, and resource utilization. Its inherent non-blocking IO makes asynchronous request processing natural. CRuby doesn't have a built-in async IO solution, but JRuby does!
The 12-factor app is a collection of best practices for deploying scalable, maintainable and portable applications in the cloud. It synthesizes the experiences and observations we've made at Heroku after hosting and supporting thousands of production Scala applications.
You only need one file with one line of text to run a Minecraft server on Heroku
with my Minecraft buildpack.
It solves all the problems associated with the use of TCP and Heroku's ephemeral filesystem.