terraform-provider-libvirt VS ingress-nginx

libvirt-terraform-provider ( based on https://github.com/dmacvicar/terraform-provider-libvirt )

Hi guys!I wanted to allotment with you a tool to provision a fully working OCP 4.x.y cluster in minutes using Ansible for automation, libvirt as virtualization provider and terraform as VMs templating and creation tool. https://github.com/kubealex/libvirt-ocp4-provisioner It will take care of all the infrastructure provisioning and OCP machines provisioning, starting and completing the UPI installation of a cluster. (IPI work in progress ;) ) To give a quick overview, this project will allow you to provision a fully working OCP stable environment, consisting of: * Bastion machine provisioned with: * dnsmasq (with SELinux module, compiled and activated) * dhcp based on dnsmasq * nginx (for ignition files and rhcos pxe-boot) * pxeboot * Loadbalancer machine provisioned with: * haproxy * OCP Bootstrap machine * OCP Master(s) VM(s) * OCP Worker(s) VM(s) From latest release, it also supports installing SNO on a single host! It also takes care of preparing the host machine with needed packages, configuring: * dedicated libvirt network (fully customizable) * dedicated libvirt storage pool (fully customizable) * terraform * libvirt-terraform-provider ( compiled and initialized based‏‏‎‏‏‎‏‏‎‏‏‎­on https://github.com/dmacvicar/terraform-provider-libvirt) PXE is automatic, based on MAC binding to different OCP nodes role, so no need of choosing it from the menus, this means you can just run the playbook, take a beer and have your fully running OCP 4.9.latest stable up and running. It has been tested on Fedora 3x and CentOS 7/8. Playing around with it and contributions to make it work even on different OSes is more than welcome, hope you enjoy it! Alex

I learned and got terraform to work with the KVM/Libvirt provider.

I saw Terraform with the dmacvicar/terraform-provider-libvirt provider, but sadly didn't get really warm with it. When some can explain to me how I can set up new images for every VM I would be very happy also there are more question in the pipeline. Sadly, the “Documentation” is not really that good. Maybe Terraform is also the wrong Application for me. I'm a little lost because I thought Terraform would be the big Solution I want and need, until now, not yet.

It looks like there was an issue dealing with "attaching an existing disk" to a terraform created VM. That's here: https://github.com/dmacvicar/terraform-provider-libvirt/issues/688

Nice. I’m straight KVM as it’s a mirror of work (my Lab) and I’m using the terraform-provider-libvirt provider. 20 minutes to fully build a site. Pretty cool.

libvirt-terraform-provider ( compiled and initialized based on https://github.com/dmacvicar/terraform-provider-libvirt)

# Add NGINX ingress using Helm eks.HelmChart( self, "NginxIngress", cluster=cluster, chart="ingress-nginx", repository="https://kubernetes.github.io/ingress-nginx", namespace="ingress-nginx", values=helm_values )

ingress-nginx

The second one is a combination of tools: External DNS, cert-manager, and NGINX ingress. Using these as a stack, you can quickly deploy an application, making it available through a DNS with a TLS without much effort via simple annotations. When I first discovered External DNS, I was amazed at its quality.

resource "helm_release" "icrelease" { name = "nginx-ingress" repository = "https://kubernetes.github.io/ingress-nginx" chart = "ingress-nginx" version = "4.9.1" namespace = kubernetes_namespace.icnamespace.metadata[0].name set { name = "controller.ingressClassResource.default" value = "true" } }

helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx helm repo update helm upgrade --install ingress-nginx ingress-nginx/ingress-nginx --namespace ingress-nginx --create-namespace -f custom/ghost/nginx.yaml

For example, if you chose Nginx Ingress, you will use some of its dozens of annotations that are not portable if you decide to switch to another Ingress implementation like Apache APISIX.

The controller is installed with helm upgrade --install ingress-nginx ingress-nginx --repo https://kubernetes.github.io/ingress-nginx --namespace ingress-nginx --create-namespace

helm repo add jetstack https://charts.jetstack.io helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx helm repo add rancher-latest https://releases.rancher.com/server-charts/latest helm repo update helm repo list

Everything in the YAML snippets below — except for ingress configuration — relates to configuring the NGINX ingress controller. This includes customizing the default configuration.