olvesh

(! 525) ((1.0.0-beta1))# mvn dependency:tree
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building DataStax Java Driver for Apache Cassandra - Core 1.0.0-beta1
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-dependency-plugin:2.1:tree (default-cli) @ cassandra-driver-core ---
[INFO] com.datastax.cassandra:cassandra-driver-core:jar:1.0.0-beta1
[INFO] +- io.netty:netty:jar:3.6.2.Final:compile

olvesh

#!/bin/bash
# ssh-multi
# D.Kovalov
# Based on http://linuxpixies.blogspot.jp/2011/06/tmux-copy-mode-and-how-to-control.html

# a script to ssh multiple servers over multiple tmux panes


starttmux() {
    if [ -z "$HOSTS" ]; then

olvesh

Ansible rolling update using docker

Include docker-deploy.yml:

[...]
- name: "Deploying {{ service_name }} "
  hosts: "{{ service_name }}"
  serial: 1
  max_fail_percentage: 50
 tasks: 

olvesh

Keybase proof

I hereby claim:

• I am olvesh on github.
• I am olve (https://keybase.io/olve) on keybase.
• I have a public key whose fingerprint is A193 3ED8 721B 01DF 619A 47F0 85BC BF60 88D6 BE0C

To claim this, I am signing this object:

olvesh

#!/usr/bin/env bash


DOMAIN=$(curl -s http://169.254.169.254/latest/meta-data/hostname | perl -n -e'/[A-Za-z0-9-]+\.(.*)/ && print $1')
IP=$(curl -s http://169.254.169.254/latest/meta-data/local-ipv4)

MAC=$(curl -s http://169.254.169.254/latest/meta-data/mac)
CIDR=$(curl -s http://169.254.169.254/latest/meta-data/network/interfaces/macs/$MAC/vpc-ipv4-cidr-block)
RECURSOR=$( echo $CIDR | awk -F"." '{print $1 "." $2 "." $3 ".2"}')

olvesh

# kubectl get ns -o wide
NAME           STATUS        AGE
cust1-first    Terminating   6h
cust1-second   Terminating   6h
default        Active        6d
dev            Terminating   6h
kube-system    Active        6d
prod           Terminating   6h
qa             Terminating   6h
spinnaker      Active        6d

olvesh

Sun Mar 19 18:51:17 UTC 2017

olvesh

apiVersion: v1
kind: ConfigMap
metadata:
   name: testconfig
data:
  file1: |
    some stuff
  file2: |
    some other stuff in subdir
---

olvesh

From public to private topology

Run kops get cluster -o yaml --full > cluster-full.yaml for reference and backup

Bastion and weave networking

kops edit cluster:

• change networking to

  spec: 
    networking:
      weave: 

olvesh

syntax = "proto3";

package grpcbin;

service GRPCBin {
    // This endpoint
    rpc Index (EmptyMessage) returns (IndexReply) {
    }
    // Unary endpoint that takes no argument and replies an empty message.
    rpc Empty (EmptyMessage) returns (EmptyMessage) {