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}'

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

An Ansible summary

Jon Warbrick, July 2014, V3.2 (for Ansible 1.7)

Configuration file

intro_configuration.html

First one found from of

Working with ansible-vault

I've been using a lot of Ansible lately and while almost everything has been great, finding a clean way to implement ansible-vault wasn't immediately apparent.

What I decided on was the following: put your secret information into a vars file, reference that vars file from your task, and encrypt the whole vars file using ansible-vault encrypt.

Let's use an example: You're writing an Ansible role and want to encrypt the spoiler for the movie Aliens.

	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

-- hosts: all
-  tasks:
-  - name: Ansible delete file wildcard
-    find:
-      paths: /etc/wild_card/example
-      patterns: "^he.*.txt"
-      use_regex: true
-    register: wildcard_files_to_delete
-  - name: Ansible remove file wildcard

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

	{# 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 %}

	---
	# This has been tested with ansible 1.3 with these commands:
	# ansible-playbook -i hosts ansible_conditionals_examples.yaml --extra-vars="hosts=myhosts isFirstRun=false"
	# ansible-playbook -i hosts ansible_conditionals_examples.yaml --extra-vars="hosts=myhosts isFirstRun=true"
	# ansible-playbook -i hosts ansible_conditionals_examples.yaml --extra-vars="hosts=myhosts"
	# NB: The type of the variable is crucial!

	- name: Ansible Conditionals Examples
	hosts: $hosts
	vars_files:

	-- 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 [email protected]:<YOUR ACCOUNT>/<YOUR REPOS>.git