Ever searched for a simple setup to test the exposure of a /metrics endpoint and tried to add this endpoint to Prometheus using a ServiceMonitor CR? Well, use the manifests below and you are good to go :).
---
apiVersion: v1
kind: Namespace
metadata:
name: testing
| # NS | |
| kubectl create ns cadvisor-issue-test | |
| # PV | |
| echo " | |
| apiVersion: v1 | |
| kind: PersistentVolume | |
| metadata: | |
| name: pvc-cadvisor-issue-test | |
| spec: |
| --- | |
| apiVersion: apps/v1 | |
| kind: Deployment | |
| metadata: | |
| labels: | |
| app: kuard | |
| name: kuard | |
| namespace: kuard | |
| spec: | |
| replicas: 1 |
Example use case: Running the Cilium CNI without any kube-proxy
On all RKE2 servers (master nodes), add the following configuration to your /etc/rancher/rke2/config.yaml file:
disable-kube-proxy: "true"Now the important step: If you already had stared the RKE2 service before (without this flag and with kube-proxy enabled), ensure to also delete the kube-proxy.yaml static pod manifest:
Helpful Kubernetes Grafana dashboards. Tested with kube-state-metrics v2.0.0 & Grafana 8.0.3.
Original sources of the JSONs:
This two scripts install & configure Wireguard on a CentOS8 "server" (peer) and on a Ubuntu 18.04 "client" peer. Of course, if you replace the # Installation script parts, these instructions can also be used on other distributions like Debian, CentOS 7, Fedora, etc..
Possible pitfall: When you change something in the /etc/wireguard/wg0.conf configuration file on the server, ensure to disable the wg-quick@wg0 service in advance:
sudo systemctl stop wg-quick@wg0
sudo systemctl disable wg-quick@wg0
sudo vim /etc/wireguard/wg0.conf # edit what ever you like
sudo systemctl enable --now wg-quick@wg0
| <!DOCTYPE NETSCAPE-Bookmark-file-1> | |
| <!-- This is an automatically generated file. | |
| It will be read and overwritten. | |
| DO NOT EDIT! --> | |
| <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8"> | |
| <TITLE>Bookmarks</TITLE> | |
| <H1>Bookmarks</H1> | |
| <DL><p> | |
| <DT><H3 ADD_DATE="1639761932" LAST_MODIFIED="1639906307" PERSONAL_TOOLBAR_FOLDER="true">Bookmarks bar</H3> | |
| <DL><p> |
Quick and dirty guide how to get Apache Guacamole in combination with VNC up and running.
sudo add-apt-repository -y ppa:remmina-ppa-team/freerdp-daily
sudo apt update
env DEBIAN_FRONTEND=noninteractive sudo apt install -y freerdp2-dev freerdp2-x11
Tested on a Rocky Linux 8.4 VM on DigitalOcean. Run everything as root. Based on RKE2, Cilium, Nginx and Longhorn.
# SELinux
sestatus
setenforce 0
sed -i --follow-symlinks 's/^SELINUX=.*/SELINUX=permissive/g' /etc/sysconfig/selinux && cat /etc/sysconfig/selinux
sestatus