![dev ingress apk dev ingress apk](https://fevgames.net/wp-content/uploads/2020/06/dronenet-icon.png)
However, with most apps this isn’t an issue, so by using Alpine you can benefit from smaller images which are quicker to build, push and deploy.
#Dev ingress apk software#
There’s an important aspect of Alpine-based images to take into account: Alpine uses musl instead of glibc so some software may have problems running in Alpine. The most convenient is the one based on the Alpine Linux distro, since it’s very very small compared to the default image which is based on Debian. For Rails apps there’s a Ruby image, which comes in various flavours. Instead, since Docker builds images as “layers” - where each layer is created with a particular instruction in the Dockerfile - a good Dockerfile can leverage caching of layers as well as reduce the final image size considerably. How you write your Dockerfile is quite important, because an “unoptimised” Dockerfile can lead to very big images that have to be rebuilt from scratch often, slowing things down. The first step is to “containerize” the app. The instructions below are based on a Ruby on Rails app but can be adapted to other workloads. It works really well! Let’s see how I set things up and how I use Telepresence. Telepresence “swaps” the actual deployments in Kubernetes with local containers so that all the requests are forwarded to and processed by these containers. This tools takes a different approach, in that it doesn’t do continuous deployment to the cluster, but creates a sort of tunnel between the Kubernetes cluster and processes running on my local machine, in such a way that my machine behaves as if it were part of the cluster itself: it can reach services otherwise reachable only from within the Kubernetes cluster and can itself be reached by other services in the cluster it can access environment variables, secrets, config maps and even persistent volumes! It’s kinda magic and I love it! The workflow is a lot faster because I can deploy to the cluster, and then start this connection between the cluster and app containers running locally. I wanted a faster interaction, and while searching I discovered Telepresence.
#Dev ingress apk code#
The idea is nice, but I found the process to be rather slow, because each time a change is made to the code the image has to be rebuilt, pushed to a registry and deployed with kubectl or Helm to the cluster. I’ve recently tried tools like Garden and Skaffold (there are others) which are very interesting because they allow for continuous deployment of an app to a local or remote Kubernetes cluster during development, so that each change can be tested directly in the cluster. However, this no longer works for me because I am deploying to Kubernetes and my app needs to interact with the Kubernetes API dynamically in order to manage things like ingresses and certificates for custom domains. When I started using Docker, I was just using Docker Compose to set things up on my Mac. And containers can be used to run external dependencies as well. Containers make it very easy to pack all the libraries and components an app needs to run, making sure the app always runs in exactly the same consistent way regardless of where it is running. There’s a lot to like about containers, but I love them particularly because they enable me to develop in an environment which is almost identical to production, and also because of the simplicity with which I can set up throw away environments. This mostly worked, but it also meant developing on a platform which at times can be quite different from the platform I deploy to, and I’ve happened to run into issues a few times because of this.
#Dev ingress apk mac#
Once upon a time, doing Rails development for me meant installing all my app’s dependencies on my Mac including Ruby, databases, things like Redis and more. I am very happy with the end result, and I’d like to share in this post what I am doing now as I am sure this can save time to others and answer some questions others may have.
![dev ingress apk dev ingress apk](https://cdn.apkmonk.com/images/com.gombosdev.ingressportalcalc.png)
I have spent quite a bit of time lately trying to polish my setup and workflow for Rails web development a lot has changed since I started working with containers and Kubernetes, so I had to adapt. Update: I have recently switched to Okteto from Telepresence.