kars7e

Prerequisite

Dispatch

If you arrived here, you should already have GKE environment ready, and Dispatch deployed. We will now deploy dependencies, and install our blog application.

Minio

Minio is a S3 compatible object store, we use it to store blog posts. You can deploy a minio server locally or use S3 instead.

kars7e

Instructions for using Ubuntu OVA

1. Deploy the following Ubuntu 16.04 OVA on VMware fusion or your vCenter server and power-on VM http://file01.eng.vmware.com/images/ubuntu-server-amd64/Ubuntu_16.04.2_server_amd64.ovf

2. SSH to the deployed VM with credentials:vmware/vmware

3. Download and execute the bash script to install docker, minikube & helm

 curl -LO https://raw.githubusercontent.com/neosab/vagrantfiles/master/scripts/install_minikube_ubuntu1604.sh && chmod +x install_minikube_ubuntu1604.sh

kars7e

git clone https://github.com/kars7e/tinker-cluster
cd tinker-cluster/ansible
cat > inventory.ini<<EOF
tinker-0
tinker-1
tinker-2
tinker-3

[k8s-master]
tinker-0

kars7e

git clone https://github.com/openfaas/faas-netes
cd faas-netes/yaml_armhf
kubectl apply -f nats.armhf.yml,faas.async.armhf.yml,rbac.yml,monitoring.armhf.yml

kars7e

echo "http://tinker-0:$(kubectl get svc/gateway -o go-template --template='{{ (index .spec.ports 0).nodePort }}')/ui"

kars7e

E0103 21:39:27.193748       1 writers.go:149] apiserver was unable to write a JSON response: http2: stream closed
E0103 21:39:27.193837       1 status.go:64] apiserver received an error that is not an metav1.Status: http2: stream closed
I0103 21:39:27.195217       1 trace.go:76] Trace[326704214]: "Get /api/v1/nodes/tinker-3" (started: 2018-01-03 21:39:17.201568091 +0000 UTC m=+2559.876159196) (total time: 9.99348593s):
Trace[326704214]: [9.99348593s] [9.989147957s] END

kars7e

package main

import (
	"bytes"
	"log"
	"math/rand"
	"strings"
	"time"
)

kars7e

# For given string S, and a list of strings (syllables) L, find an optimal split of 
# S in form of list of strings, where all strings in a result come from L.
#
# examples:
# input:  S = "abab", L=['ab', 'bc']
# output: ['ab','ab']
# input: S = "abcde", L=['ab', 'abcd']
# output: = ['abcd']
# input S= "aaaaab", L=['c']
# output = [] (empty list)

kars7e

# For given string S, and a list of strings (syllables) L, find an optimal split of 
# S in form of list of strings, where all strings in a result come from L.
#
# examples:
# input:  S = "abab", L=['ab', 'bc']
# output: ['ab','ab']
# input: S = "abcde", L=['ab', 'abcd']
# output: = ['abcd']
# input S= "aaaaab", L=['c']
# output = [] (empty list)

kars7e

I0807 07:14:41.120666       9 nodecontroller.go:553] NodeController observed a Node deletion: k8s-node-0-93614e2e-091a-476f-830e-7a47b7749f8f
I0807 07:14:41.120691       9 controller_utils.go:274] Recording Removing Node k8s-node-0-93614e2e-091a-476f-830e-7a47b7749f8f from NodeController event message for node k8s-node-0-93614e2e-091a-476f-830e-7a47b7749f8f
I0807 07:14:41.120856       9 event.go:218] Event(v1.ObjectReference{Kind:"Node", Namespace:"", Name:"k8s-node-0-93614e2e-091a-476f-830e-7a47b7749f8f", UID:"09f7de8b-7b3f-11e7-bac4-fa163e21d7b6", APIVersion:"", ResourceVersion:"", FieldPath:""}): type: 'Normal' reason: 'RemovingNode' Node k8s-node-0-93614e2e-091a-476f-830e-7a47b7749f8f event: Removing Node k8s-node-0-93614e2e-091a-476f-830e-7a47b7749f8f from NodeController
I0807 07:14:41.405718       9 gc_controller.go:144] GC'ing orphaned
I0807 07:14:41.410523       9 gc_controller.go:162] Found orphaned Pod webapp-dev-3850711988-g8rxg assigned to the Node k8s-node-0-93614e2e-091a-476f-830e-7a47b7749f8f.