praveenkumar

package main

import (
	"encoding/json"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
)

praveenkumar

#!/bin/bash

set -euo pipefail

export LC_ALL=C
export LANG=C

INSTALL_DIR=crc-tmp-install-data
JQ=${JQ:-jq}
OC=${OC:-oc}

praveenkumar

$ oc get clusterversion -oyaml
apiVersion: v1
items:
- apiVersion: config.openshift.io/v1
  kind: ClusterVersion
  metadata:
    creationTimestamp: "2020-02-29T17:11:09Z"
    generation: 4
    name: version
    resourceVersion: "616039"

praveenkumar

# git diff
diff --git a/vagrant/Vagrantfile b/vagrant/Vagrantfile
index 338ca59..bc6c1cd 100644
--- a/vagrant/Vagrantfile
+++ b/vagrant/Vagrantfile
@@ -23,7 +23,7 @@ Vagrant.configure("2") do |config|
   # Every Vagrant development environment requires a box. You can search for
   # boxes at https://vagrantcloud.com/search.
   # config.vm.box = "base"
-  config.vm.box = "ubuntu/bionic64"

praveenkumar

This gist thread will be used to find out what all operators are present as part of CRC and what can be done to make low
memory/cpu footprint to the host.

praveenkumar

$ cat Corefile 
tt.testing {
    log
    errors
    health
    file test1-api
}
. {
    forward . mynameserver {
        except tt.testing

praveenkumar

This gist contain the install related comments.

praveenkumar

• Writing a Custom Controller: Extending the Functionality of Your Cluster [I] - Aaron Levy(CoreOS): https://youtu.be/_BuqPMlXfpE
• Writing Kube Controllers for Everyone - Maciej Szulik, Red Hat (Beginner Skill Level): https://youtu.be/AUNPLQVxvmw
• Programming Kubernetes with the Go SDK [I] - Aaron Schlesinger, Deis: https://youtu.be/qiB4RxCDC8o
• TGI Kubernetes 007: Building a Controller - Heptio: https://youtu.be/8Xo_ghCIOSY
• TGI Kubernetes 008: Continuing the Controller - Heptio: https://youtu.be/fWkK-zsFtlU
• TGI Kubernetes 009: Finishing the Controller - heptio: https://youtu.be/wqhKCiGsf1Y
• Kubernetes Operators: Managing Complex Software with Software [I] - Josh Wood & Jesus Carrillo: https://youtu.be/cj5uk1uje_Y
• Deep Dive: Operator Framework BoF - Diane Mueller & Sebastian Pahl, Red Hat: https://youtu.be/fu7ecA2rXmc
• Testing Kubernetes CRDs - Christie Wilson, Google: https://www.youtube.com/watch?v=T4EB0KB1-fc

praveenkumar

$ cat /home/prkumar/work/github/practice/go/src/github.com/openshift/installer/bin/test/openshift/99_openshift-cluster-api_worker-machineset.yaml 
apiVersion: v1
apiVersion: cluster.k8s.io/v1alpha1
kind: Machine
metadata:
  creationTimestamp: null
  labels:
    sigs.k8s.io/cluster-api-cluster: test1
    sigs.k8s.io/cluster-api-machine-role: worker
    sigs.k8s.io/cluster-api-machine-type: worker

praveenkumar

# /usr/local/bin/kubectl get pods --all-namespaces -o wide
NAMESPACE                                                 NAME                                                              READY     STATUS      RESTARTS   AGE       IP               NODE                   NOMINATED NODE
kube-system                                               etcd-member-test1-master-0                                        1/1       Running     1          6d        192.168.126.11   test1-master-0         <none>
openshift-apiserver-operator                              openshift-apiserver-operator-77756dfc66-942df                     1/1       Running     3          6d        10.128.0.56      test1-master-0         <none>
openshift-apiserver                                       apiserver-sf68z                                                   1/1       Running     2          6d        10.128.0.51      test1-master-0         <none>
openshift-cluster-api                                     cluster-autoscaler-operator-6855f55d94-29jk