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@jamesdube
jamesdube / kind-metrics-server.yaml
Last active May 31, 2020 23:12 — forked from hjacobs/kind-metrics-server.yaml
Metrics Server API deployment manifests for Kubernetes kind
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: system:aggregated-metrics-reader
labels:
rbac.authorization.k8s.io/aggregate-to-view: "true"
rbac.authorization.k8s.io/aggregate-to-edit: "true"
rbac.authorization.k8s.io/aggregate-to-admin: "true"
rules:
- apiGroups: ["metrics.k8s.io"]
@jamesdube
jamesdube / checkHttpStatusCode.sh
Created May 30, 2020 06:31
Check Http Status Code using curl
#!/bin/bash
while true
do
STATUS=$(curl -s -o /dev/null -w '%{http_code}' http://example.com/poll-me)
if [ $STATUS -eq 200 ]; then
echo "Got 200! All done!"
break
else
echo "Got $STATUS :( Not done yet..."
@jamesdube
jamesdube / install-on-all-node.sh
Created May 28, 2020 13:53 — forked from SarasaGunawardhana/install-on-all-node.sh
Prerequisites for Setup Kubenetes Cluster. You should install these things on each server.
#!/bin/bash
## Generic installation on all nodes
sysctl -w net.ipv4.ip_forward=1
sed -i 's/#net.ipv4.ip_forward=1/net.ipv4.ip_forward=1/g' /etc/sysctl.conf
sudo sysctl -p /etc/sysctl.conf
swapoff -a
sed -i '2s/^/#/' /etc/fstab
@jamesdube
jamesdube / add CA cert on CentOS Debian Ubuntu.md
Created May 27, 2020 18:10 — forked from kekru/add CA cert on CentOS Debian Ubuntu.md
Add CA cert to local trust store on CentOS, Debian or Ubuntu
  • Open a webpage that uses the CA with Firefox
  • Click the lock-icon in the addressbar -> show information -> show certificate
  • the certificate viewer will open
  • click details and choose the certificate of the certificate-chain, you want to import to CentOS
  • click "Export..." and save it as .crt file
  • Copy the .crt file to /etc/pki/ca-trust/source/anchors on your CentOS machine
  • run update-ca-trust extract
  • test it with wget https://thewebsite.org
#!/usr/bin/env bash
set -e -o pipefail; [[ -n "$DEBUG" ]] && set -x
CERT_DIR="${CERT_DIR:-"/usr/local/share/ca-certificates"}"
function usage() {
echo "Usage: $(basename "$0") [-n clustername] certfile ..." >&2
}
@jamesdube
jamesdube / hide-mounted-drives.sh
Created May 7, 2020 18:11
Hide Mounted drives from dock
gsettings set org.gnome.shell.extensions.dash-to-dock show-mounts false
@jamesdube
jamesdube / composer_install.sh
Last active March 20, 2020 09:40
Script to install composer
#!/bin/sh
EXPECTED_CHECKSUM="$(wget -q -O - https://composer.github.io/installer.sig)"
php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
ACTUAL_CHECKSUM="$(php -r "echo hash_file('sha384', 'composer-setup.php');")"
if [ "$EXPECTED_CHECKSUM" != "$ACTUAL_CHECKSUM" ]
then
>&2 echo 'ERROR: Invalid installer checksum'
rm composer-setup.php
@jamesdube
jamesdube / drain.sh
Created February 5, 2020 09:48
Drain Pods on Crashed Node
#!/bin/sh
KUBECTL="/usr/local/bin/kubectl"
# Get only nodes which are not drained yet
NOT_READY_NODES=$($KUBECTL get nodes | grep -P 'NotReady(?!,SchedulingDisabled)' | awk '{print $1}' | xargs echo)
# Get only nodes which are still drained
READY_NODES=$($KUBECTL get nodes | grep '\sReady,SchedulingDisabled' | awk '{print $1}' | xargs echo)
echo "Unready nodes that are undrained: $NOT_READY_NODES"
@jamesdube
jamesdube / Readme.md
Created February 1, 2020 01:08 — forked from philipz/Readme.md
GitLab Runner on a Kubernetes cluster
  1. Create namespace.yaml
apiVersion: v1
kind: Namespace
metadata:
  name: gitlab
  1. kubectl create -f ./namespace.yaml