krx252525’s gists

krx252525 / Play2-Java-ApiImplicitParam

Last active April 27, 2016 13:31

Example of Play2 Java ApiImplicitParam with paramType set

	// The paramType requires that dataType is also declared. This is not mentioned in the documentation
	@ApiImplicitParams({
	@ApiImplicitParam(name = "body", value = "Customers List", required = true, dataType = "string", paramType = "body")
	})

krx252525 / sample-spec.yaml

Created March 7, 2017 13:25

The simplest spec that recreates issue where Swagger codegen Java client uses String instead of URL

	swagger: '2.0'
	host: 'example.com'
	basePath: /
	schemes:
	- https
	################################################################################
	# Info #
	################################################################################
	info:
	version: '1.0.0'

krx252525 / kubectl describe pods kube-dns

Last active July 4, 2017 08:49

kubedns failure

	Name: kube-dns-v15-7lkws
	Namespace: kube-system
	Node: ip-xx-xx-xxx-xxx.ec2.internal/xx.xx.xxx.xxx
	Start Time: Thu, 16 Feb 2017 00:59:46 +0000
	Labels: k8s-app=kube-dns
	kubernetes.io/cluster-service=true
	version=v15
	Status: Running
	IP: xx.x.xx.x
	Controllers: ReplicationController/kube-dns-v15

krx252525 / out.tfplan

Last active July 31, 2017 14:42

Terraform Plan

	~ module.hoolihan-k8s.k8s.aws_autoscaling_group.kube_minion_asg_subnet.2
	launch_configuration: "terraform-00e06ba237a19d190583af5f29" => "${aws_launch_configuration.kube_minion_launch_configuration.name}"

krx252525 / out.tfplan

Created July 31, 2017 14:46

Terraform Apply

~ module.hoolihan-k8s.k8s.aws_iam_role_policy.kube_master_iam_role_policy

    policy: "{\n    \"Statement\": [\n        {\n          \"Effect\": \"Allow\",\n          \"Action\": \"ec2:Describe*\",\n          \"Resource\": \"*\"\n        },\n        {\n          \"Effect\": \"Allow\",\n          \"Action\": \"autoscaling:Describe*\",\n          \"Resource\": \"*\"\n        },\n        {\n          \"Effect\": \"Allow\",\n          \"Action\": \"ec2:*\",\n          \"Resource\": \"*\"\n        },\n        {\n          \"Effect\": \"Allow\",\n          \"Action\": \"elasticloadbalancing:*\",\n          \"Resource\": \"*\"\n        },\n        {\n          \"Action\": \"ec2:AttachVolume\",\n          \"Effect\": \"Allow\",\n          \"Resource\": \"*\"\n        },\n        {\n          \"Action\": \"ec2:DetachVolume\",\n          \"Effect\": \"Allow\",\n          \"Resource\": \"*\"\n        },\n        {\n          \"Effect\": \"Allow\",\n          \"Action\": \"kms:Decrypt\",\n          \"Resource\": \"arn:aw

krx252525 / KubeDNS

Created August 29, 2017 16:27

kubectl describe pods --namespace kube-system kube-dns-v19-2510715403-76tn3

	Name: kube-dns-v19-2510715403-76tn3
	Namespace: kube-system
	Node: ip-xx-xx-xx-x.ec2.internal/xx.xx.xx.xx
	Start Time: Mon, 14 Aug 2017 09:25:46 +0100
	Labels: k8s-app=kube-dns
	kubernetes.io/cluster-service=true
	pod-template-hash=2510715403
	version=v19
	Status: Running
	IP: 10.2.58.93

krx252525 / initial-analysis-wrong

Last active May 23, 2018 02:44

Kubernetes node healthcheck via ELB with DNS change

	Title: Kubernetes node health monitoring
	# Render here: https://bramp.github.io/js-sequence-diagrams/
	node->dns: resolve ip-address
	node->node: cache ip ttl 60s
	node->elb: healthy
	master->node: ok (2xx)
	node->node: wait 10s
	note over node,elb: Repeat heartbeat every \n node-status-update-frequency (default 10s)
	elb->master: healthy
	note right of master: Check status of node every \nnode-monitor-period (default 5s)

krx252525 / disable-catalogue.js

Last active June 12, 2020 01:51

Disables Openshift Catalogue

	(function() {
	OPENSHIFT_CONSTANTS.DISABLE_SERVICE_CATALOG_LANDING_PAGE=true;
	}());