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18. Cafe: Kubernetes authentication and authorization with user management and RBAC

Highlights We are learning how to deploy Kubernetes into Hetzner cloud in this series: Provisioned the server and agent VMs with Terraform and Ansible in the first session Deployed k3s last week Learned about pods and the Hetzner load balancer Ingress controller for load balancer cost savings We’ll take a break from deploying a Kubernetes cluster this week, and get to know Kubernetes user authentication and authorization from Niclas Mietz. Read More…


Date published: February 24, 2021

17. Cafe: Kubernetes deployments to Hetzner Cloud, step 4: Ingress controller for load balancer cost savings

Highlights Max Rosin kindly prepared a series of workshops to learn how to deploy Kubernetes in Hetzner Cloud. Hetzner generously sponsored cloud minutes for our sessions, thank you! This session covers the fourth step, after having provisioned the server and agent VMs with Terraform and Ansible in the first session, deployed k3s last week and learned about pods and the Hetzner load balancer. This week we’ll use a single load balancer for multiple websites to save costs - with an Ingress Controller. Read More…


Date published: February 17, 2021

16. Cafe: Kubernetes deployments to Hetzner Cloud, step 3: k3s load balancer & pod resources

Highlights Max Rosin kindly prepared a series of workshops to learn how to deploy Kubernetes in Hetzner Cloud. Hetzner generously sponsored cloud minutes for our sessions, thank you! This session covers the third step, after having provisioned the server and agent VMs with Terraform and Ansible in the first session and deployed k3s last week: Fix the cluster IPs with deploying the config with Ansible Inspect pod resources on error Learn about taint and tolerate error patterns Use Hetzner resources to manage the load balancer Encrypted secrets: at rest or HashiCorp Vault Pods as group of containers, in a Deployment or ReplicaSet (which maintains a stable set of running pods) Deployments are the recommended way to manage Pods as they are a higher-level concept that manages ReplicaSets and provides declarative updates to Pods along with a lot of other useful features like rollout history and rollbacks. Read More…


Date published: February 10, 2021

15. Cafe: Kubernetes deployments to Hetzner Cloud, step 2: k3s with Ansible

Highlights Max Rosin kindly prepared a series of workshops to learn how to deploy Kubernetes in Hetzner Cloud. Hetzner generously sponsored cloud minutes for our sessions, thank you! This session covers the second step, after having provisioned the server and agent VMs with Terraform and Ansible last week: Install wireguard to use with Flannel and encrypt the network traffic Install the k3s binary and deploy a systemd unit using Ansible Jinja templates k3s agent setups requires an auth token on the master. Read More…


Date published: February 3, 2021

14. Cafe: Kubernetes deployments to Hetzner Cloud, step 1: Terraform & Ansible

Highlights Max Rosin kindly prepared a series of workshops to learn how to deploy Kubernetes in Hetzner Cloud. Hetzner generously sponsored cloud minutes for our sessions, thank you! This session covers the first steps with Terraform and Ansible, next week, Kubernetes will be deployed on top. Max’s demo repository with Terraform code and Ansible code GitLab Direction for Infrastructure as Code GitLab features: Protected Terraform states (developer access) Terraform MR widget integration, next steps 5 minute production app with Terraform in the background Terraform Registry Move Kubernetes cluster creation into Terraform Recording Enjoy the session! Read More…


Date published: January 27, 2021

13. Cafe: Auto-scaling GitLab runners in Hetzner Cloud

Highlights When Patricia tweeted on a Monday about compiling Chromium and asked for self-hosting and cloud environments, we quickly jumped into trying it out on Wednesday with GitLab and auto-scaling the Runners in Hetzner Cloud. Niclas Mietz on the keyboard, Max Rosin stepping through his great blog post. Documentation Blog post from Max Rosin CI autoscaling research docker-machine direction in GitLab Hetzner Cloud curated lists Workaround for Docker problem. Read More…


Date published: January 20, 2021