linuxbrew-core VS flux2

I decided to take a few years off work to just build on what I'd like. Perhaps in a startup studio model, so I have a bias for having something that is easily reusable, and that uses tech someone else can pick up and run with easily. I'll probably be in the business of dev/infra tooling.

Currently going with a container image as the minimal deployable unit that gets put on top of a clean up to date OS. For me that's created with a Dockerfile using Alpine image variants. In a way I could see someone's rsync as an ok equivalent, but I'd do versioned symlinked directories so I can easily roll back if necessary if I went with this method. Something like update-alternatives or UIUC Encap/Epk: https://www.ks.uiuc.edu/Development/Computers/docs/sysadmin/.... Anyone remember that? I guess the modern version of Epkg with dependencies these days is https://docs.brew.sh/Homebrew-on-Linux. :-) Or maybe Nixpkgs: https://github.com/NixOS/nixpkgs?

Deployment-wise I've already done the Bash script writing thing to help a friend automate his deployment to EC2 instance. For myself I was going to start using boto3, but just went ahead and learned Terraform instead. So now my scripts are just simple wrappers for Docker/Terraform that build, push, or deploy that work with AWS ECS Fargate or DigitalOcean Kubernetes.

No CI/CD yet. DBs/backups I'll tackle next as I want to make sure I can install or failover to a new datacenter without much difficulty.

If you need the absolute freshest development tools, also consider checking out Homebrew (easy) or Nix (more complicated). They're alternative package managers that will run happily alongside the default system stuff on most any Linux distro.

I've been running testing for years, but have switched to targetting bullseye so I will be back on stable when it is released. However, I have started installing most packages from linuxbrew now. https://docs.brew.sh/Homebrew-on-Linux

I've found using homebrew (for linux), it builds pretty easily: https://docs.brew.sh/Homebrew-on-Linux

homebrew on linux

The first thing you will need is to install mkcert which can be done via homebrew or homebrew for Linux.

Yesterday I installed homebrew and I had to run some commands to export it on my path. This message used to be shown when I opened a terminal but I ignored it since I was bussy with work. Now it looks like I can't even login, any ideas?

KOM operates within kubernetes environments where Flux or ArgoCD is installed.

Given the team had already adopted GitOps and were familiar with deployments powered by Helm Releases and Flux, we wanted to move the provisioning of the infrastructure to be part of the same process of creating the service and its continuous deployment.

Your GitHub action can trigger a helm chart, or series thereof, or other infra tools. Declarative specifications, triggered procedurally with the context of the branch’s latest build. We use this pattern quite extensively for preview app workflows.

As of a year ago this is possible in a fully declarative way with Flux 2, but there’s a lot more moving parts and security footguns - and the idea that the maintenance of this project has lost one of its primary sponsors is worrying at best.

https://github.com/fluxcd/flux2/discussions/831

https://blog.kluctl.io/introducing-the-template-controller-a...

FluxCD - FluxCD is another popular GitOps tool that allows developers to use a Git repository as the sole source of configuration. Flux automatically ensures that the state of the Kubernetes cluster is synchronized with the configuration in the Git repository. It supports automatic updates, meaning Flux can monitor Docker image repositories for new images and push updates to the cluster.

#!/bin/bash aws eks update-kubeconfig --name $CLUSTER_NAME --region $AWS_REGION flux_installed=$(kubectl api-resources | grep flux) if [ -z "$flux_installed" ]; then echo "flux is not installed" curl -s https://fluxcd.io/install.sh | sudo bash flux bootstrap github \ --owner=$GH_USER_NAME \ --repository=$FLUX_REPO_NAME \ --path="clusters/$ENVIRONMENT/$CLUSTER_NAME/bootstrap" \ --branch=main \ --personal else echo "flux is installed" fi

Flux CD enables continuous deployment to Kubernetes through GitOps by syncing Git repositories with Kubernetes clusters. Flux CD enables GitOps for Kubernetes through source control integration. It manages Kubernetes manifests as code and syncs git repo changes to clusters. Flux automates checks, deployments, and updates within clusters.

FluxCD is a GitOps tool developed by Weaveworks that allows you to implement continuous and progressive delivery of your applications on Kubernetes. It is a CNCF graduated project that offers a set of controllers to monitor Git repositories and reconciles the cluster's actual state with the desired state defined by manifests committed in the repo.

From here, we can explore other developments and tutorials on Kubernetes, such as o11y or observability (PLG, ELK, ELF, TICK, Jaeger, Pyroscope), service mesh (Linkerd, Istio, NSM, Consul Connect, Cillium), and progressive delivery (ArgoCD, FluxCD, Spinnaker).

Instead, we will create a single long-lived cluster, and deploy our application in different namespaces. There are a bunch of ways to do that - see ArgoCD, Flux, custom internal tooling, or other solutions (we use our own product). That way, we: