vadirajks

GKE ingress in a nutshell

• https://medium.com/google-cloud/ingress-in-google-kubernetes-products-f22ded21f4ed

Solution #1 (ManagedCertificate CRD in GKE)

• GKE with Google-managed SSL certificates
  • Use ManagedCertificate CRD to create a object.
  • Associate the ManagedCertificate object to an Ingress by adding an annotation networking.gke.io/managed-certificates to the Ingress. This annotation is a comma-separated list of ManagedCertificate resources, cert1,cert2,cert3 for example.

Solution #2 (Google Cloud SSL Certificate)

Assumption

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#!/bin/bash

cat << EOF > /etc/apt/sources.list
deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse

vadirajks

Resize splits more quickly EDIT

SHARE Tip 1215 Printable Monobook Previous Next created April 26, 2006 · complexity basic · author Robert & Bill · version 7.0

This tip is about how to resize Windows efficiently.

You can use the :resize command or its shortcut :res to change the height of the window. To change the height to 60 rows, use:

vadirajks

# This playbook was meant to be executed after provisioning.
# Initially client side certificates where created during
# image cooking, but soon figured out it would not work in 
# the long run. When I changed it to post provision execution
# I found errors that mentioned certificates already existed
# and found the issue described in GitHub.

---
- hosts: all
  become: yes

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root@foo:~# rm -rf test; mkdir test; touch test/test{1,2,3}; chown ubuntu test/test1; chown aptly test/test2; ls -al test/
total 8
drwxr-xr-x  2 root   root 4096 Nov 30 10:47 .
drwx------ 11 root   root 4096 Nov 30 10:47 ..
-rw-r--r--  1 ubuntu root    0 Nov 30 10:47 test1
-rw-r--r--  1 aptly  root    0 Nov 30 10:47 test2
-rw-r--r--  1 root   root    0 Nov 30 10:47 test3

root@foo:~# rsync -avz --chown 'nginx:www-data' -e "ssh -i ~/.ssh/my.key" --verbose test root@bar:/tmp/
opening connection using: ssh -i "~/.ssh/my.key" -l root bar rsync --server -vvlogDtprze.iLsfx "--usermap=*:nginx" "--groupmap=*:www-data" . /tmp/  (13 args)

vadirajks

################################################################################
# Method 1: Install using rpm packages (credit to DarkMukke)
#

rpm -Uvh http://mirror.ghettoforge.org/distributions/gf/gf-release-latest.gf.el7.noarch.rpm
rpm --import http://mirror.ghettoforge.org/distributions/gf/RPM-GPG-KEY-gf.el7

# WARNING: removing  vim-minimal uninstalls `sudo` if you skip the second step
#          make sure to at least run `yum install sudo`
yum -y remove vim-minimal vim-common vim-enhanced

vadirajks

Virtual Networking on Linux

In the Linux Kernel, support for networking hardware and the methods to interact with these devices is standardized by the socket API:

                +----------------+
                |   Socket API   |
                +-------+--------+
                        |
User space              |

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# Last updated: 08/24/2916
#
# Total instructions available: 18
#
# https://docs.docker.com/engine/reference/builder/
#
# You can use a .dockerignore file in the same context directory as
# your Dockerfile to ignore files in the context before sending them
# to the Docker daemon for building to speed up building.

vadirajks

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

vadirajks

# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
#
# /etc/screenrc
#
# This is the system wide screenrc.
#
# You can use this file to change the default behavior of screen system wide
# or copy it to ~/.screenrc and use it as a starting point for your own
# settings.