- What is kubernetes vs docker compose how to#
- What is kubernetes vs docker compose update#
- What is kubernetes vs docker compose full#
- What is kubernetes vs docker compose software#
kubernetes/front-claim0-persistentvolumeclaim.yaml kubernetes/back-claim1-persistentvolumeclaim.yaml
![what is kubernetes vs docker compose what is kubernetes vs docker compose](https://miro.medium.com/max/1400/1*nYKP_D076iuIn_Szz69AKA.jpeg)
kubernetes/back-claim0-persistentvolumeclaim.yaml ? Choose the builder to build image postgres None (image not built from these sources) ? Choose the builder to build image dockertaiga/rabbit None (image not built from these sources) ? Choose the builder to build image dockertaiga/proxy None (image not built from these sources) ? Choose the builder to build image dockertaiga/front None (image not built from these sources) ? Choose the builder to build image dockertaiga/events None (image not built from these sources) ? Choose the builder to build image dockertaiga/back Docker (taiga-back/docker/Dockerfile) Make sure to answer yes (y) when it asks if you want to write out the file. The default answers are correct for all questions except the last. Skaffold will ask which Dockerfiles map to the images in the Kubernetes manifests. Skaffold init -compose-file docker-compose.yml Since I didn’t yet have Kubernetes YAML, I passed in my Docker Compose file so that Skaffold would also provide me an initial set of Kubernetes manifests. To create my initial Skaffold configuration all I needed to do was run the skaffold init command which tries to detect the Dockerfiles and Kubernetes YAMLs in my app folder and then lets me pair them up to create my Skaffold YAML file.
What is kubernetes vs docker compose how to#
The discerning eye will look at these two diagrams and notice that the Kubernetes YAML files are new and that we have a new config file to tell Skaffold how to build and deploy our app. For example, changes to your Dockerfile or any of your app code will cause a rebuild of your container image and it will be redeployed to your minikube cluster.īelow is a diagram showing the before (Docker Compose) and after (Minikube and Skaffold): Skaffold watches your filesystem and as things change it does the right thing to make sure your app is updated as needed. Skaffold is a tool that lets you get a hot-code reloading feel for your apps running on Kubernetes. Many folks are familiar with Minikube, which lets you quickly and efficiently stand up a Kubernetes cluster as either a container running in Docker or a VM running on your machine. Obviously I am bit biased, so I turned my attention to figuring out how to port the Docker Compose setup to Skaffold and Minikube. Once I had gotten myself back to the best-of-breed dev setup of 2015, I decided to see what it would take to get a representative environment on the latest and greatest dev tools of today.
![what is kubernetes vs docker compose what is kubernetes vs docker compose](https://wpblog.semaphoreci.com/wp-content/uploads/2021/01/kubelet-dockershim-776x166.png)
What is kubernetes vs docker compose update#
This was awesome for quickly iterating and testing any changes you were making but when you wanted to update the image or add a dependency you had to stop the running app rebuild the Docker image. With this setup, we had setup Rails to do hot code reloading so that when we changed the business logic on our dev branches it would automatically update in the running app. Transition to Continuous Development with Skaffold Much to my surprise the whole stack came up in short order because I had done some work to pin versions of my Ruby environment, Postgresql version and dependencies (Gemfile).ĭocker has been a huge leap forward for the ability to nail down a point in time version of a stack like this.
![what is kubernetes vs docker compose what is kubernetes vs docker compose](https://image.slidesharecdn.com/kubecon-scalingopenedxwithkubernetes-160321224719/95/kubecon-eu-2016-scaling-open-edx-with-kubernetes-11-638.jpg)
What is kubernetes vs docker compose software#
We all know how much software rots when it isn’t looked after.
![what is kubernetes vs docker compose what is kubernetes vs docker compose](https://logz.io/wp-content/uploads/2018/05/docker_vs._kubernetes_-_article.jpg)
I was wary that after 6 years, none of this would work. bin/rails server -p 3000 -b 0.0.0.0īy running the docker-compose up command you could get a reproducible version of the app on your local laptop. The configuration file (docker-compose.yml) was only about 25 lines that looked like this web:Ĭommand.
What is kubernetes vs docker compose full#
One of the last few commits to the repo added support for Docker Compose which allowed us to stand up the full stack with a simple command: We’d been deploying to Heroku for test and prod environments but leveraged Docker for our development environments. I had chosen some forward leaning but hopefully future-proof tech for the infra side of things. It was a great glimpse into the state of the art of the time. Over the last weekend I had occasion to unshelve a Ruby-on-Rails project that I had worked on in 2015.