canit00

-- Remove the history from 
rm -rf .git

-- recreate the repos from the current content only
git init
git add .
git commit -m "Initial commit"

-- push to the github remote repos ensuring you overwrite history
git remote add origin git@github.com:<YOUR ACCOUNT>/<YOUR REPOS>.git

canit00

kind: ServiceAccount
apiVersion: v1
metadata:
  name: ldap-group-syncer
  namespace: openshift-authentication
  labels:
    app: cronjob-ldap-group-sync
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole

canit00

#!/bin/bash

name=$RANDOM
url='http://localhost:9093/api/v1/alerts'

echo "firing up alert $name" 

# change url o
curl -XPOST $url -d "[{ 
	\"status\": \"firing\",

canit00

My Openshift Cheatsheet

Examine the cluster quota defined for the environment:

$ oc describe AppliedClusterResourceQuota

Install pkgs using yum in a Dockerfile

canit00

# templates/mail_body.j2
{% for host in play_hosts %}
The {{ host }} says {{ hostvars[host]['result']['stdout'] }}
{% endfor %}

canit00

* Shows a message while asserting like: 

ok: [host] => {                  
    "msg": "disk usage 4.2B of total 20.0GB (21.0%) (should exceed limit 90.0%)"
}

* Note this only looks at first mount point on current node
* Fails if disk is near-full
* Last step pushes to a push-based monitoring service, which will alert us if it doesn't get there after some time
* Need to setup a  variable `disk_limit`, which is the max acceptable usage ratio, e.g. set it to 0.8 if you want to keep disks within 80% of max size

canit00

Kubectl output options

Let's look at some basic kubectl output options.

Our intention is to list nodes (with their AWS InstanceId) and Pods (sorted by node).

We can start with:

kubectl get no

canit00

openshift list all pods and thier specs (requests/limits)

oc get pod -o jsonpath='{range .items[*]}{"SPEC:  \n  LIMITS  : "}{.spec.containers[*].resources.limits}{"\n  REQUESTS: "}{.spec.containers[*].resources.requests}{"\n"}{end}'

openshift list all pods and thier specs with name (requests /limits)

oc get pod -o jsonpath='{range .items[*]}{"NAME:  "}{.metadata.name}{"\nSPEC:  \n  LIMITS  : "}{.spec.containers[*].resources.limits}{"\n  REQUESTS: "}{.spec.containers[*].resources.requests}{"\n\n"}{end}'

canit00

#!/usr/bin/env python

"""A simple python script template.

"""

from __future__ import print_function
import os
import sys
import argparse

canit00

{# style 1 - long form #}
{% if filepath == '/var/opt/tomcat_1' %}
  {% set tomcat_value = tomcat_1_value %}
{% else %}
  {% set tomcat_value = tomcat_2_value %}
{% endif %}

{# style 2 - short form #}
{% set tomcat_value = tomcat_1_value if (filepath == '/var/opt/tomcat_1') else tomcat_2_value %}