docker

Gofiber is a fast lightweight web framework with simple api, inspired by expressjs. The simplicity of the api makes it easy to get started with. It’s also fast and has a lot of features. Setup Create a new project Create a new directory and initialize a go module. go mod init github.com/adharshmk96/gofiber-init Install gofiber go get -u github.com/gofiber/fiber/v2 a main.go with hello world touch main.go package main import "github.com/gofiber/fiber/v2" func main() { // gofiber with default settings app := fiber....

Steps I follow to setup a CI CD workflow. Write Dockerfile in the code repo. Write a k8s Manifest file using kustomize template. Following this tree structure. ├── base │ └── app │ ├── deployment.yaml │ ├── kustomization.yaml │ └── service.yaml └── overlay ├── production │ └── kustomization.yaml └── staging └── kustomization.yaml Write a skaffold file ( skaffold init will auto initialize itself ). Build Docker image and Render the k8s manifest using skaffold....

Docker-compose is a tool that helps us define and run multiple services together. We declare the services and their attributes in a configuration file and the docker-compose tool reads it and issues the command to docker CLI in order to start and run the services. It helps us abstract all the creation of different components, building or pulling images etc… To run multiple services for a project. Once a compose-file is declared, we can run everything all at once with a single run command, we can also manage them via the docker-compose interface....

Docker images are built from a Dockerfile, which is a blueprint for how to prepare a ready-to-run image. We can relate it to steps we perform in a computer to get something installed and running. We can start with a base image that corresponds to an OS (like ubuntu, alpine, Debian etc…) or we can even start from essentials installed in an OS. Basic steps are Start from the base image Run commands Specify default run command Here’s a basic example from nodejs...

Docker is a platform that provides lightweight isolated runtimes for software. It helps us to package the software and its dependencies in a ready to run format. We can say its sort of works like VMs except, docker uses the kernel of our base OS. This is achieved by few techniques done with docker, File system snapshot - Dockerfile is used to build a filesystem snapshot that contains all the required files to run the software....