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@asanchez75
asanchez75 / vagrant-kvm.md
Created February 2, 2020 18:14 — forked from yuanying/vagrant-kvm.md
How to use vagrant-kvm

Install Vagrant

sudo su
apt-get update && apt-get install -y libvirt-dev ruby-all-dev apparmor-utils
curl -O -L https://dl.bintray.com/mitchellh/vagrant/vagrant_1.6.5_x86_64.deb
dpkg -i vagrant_1.6.5_x86_64.deb 
aa-complain /usr/lib/libvirt/virt-aa-helper # workaround
exit

Install vagrant-kvm as user

@asanchez75
asanchez75 / docker-ps-vertical.md
Created January 28, 2020 16:06 — forked from ergoz/docker-ps-vertical.md
vertical format for docker ps 
export FORMAT="ID\t{{.ID}}\nNAME\t{{.Names}}\nIMAGE\t{{.Image}}\nPORTS\t{{.Ports}}\nCOMMAND\t{{.Command}}\nCREATED\t{{.CreatedAt}}\nSTATUS\t{{.Status}}\n"

usage:

docker ps --format="$FORMAT"

https://cloud.githubusercontent.com/assets/7823011/19899780/41ff0db4-a09c-11e6-95f2-e275fb80bd2b.gif

@asanchez75
asanchez75 / haproxy.cfg
Created December 15, 2019 11:37 — forked from arkady-emelyanov/haproxy.cfg
haproxy check: postgresql is master
# Sample haproxy postgresql master check
#
# haproxy listen: 5431
# pg, instance #1 listen: 5432 (master node)
# pg, instance #2 listen: 5433 (replica node)
# external failover, promoting replica to master in case of failure
# passwordless auth for user web
# template1 database is accessible by user web
#
# haproxy will pass connection to postgresql master node:
@asanchez75
asanchez75 / ansible_local_playbooks.md
Created November 23, 2019 10:38 — forked from alces/ansible_local_playbooks.md
How to run an Ansible playbook locally
  • using Ansible command line:
ansible-playbook --connection=local 127.0.0.1 playbook.yml
  • using inventory:
127.0.0.1 ansible_connection=local
@asanchez75
asanchez75 / .htaccess
Created November 20, 2019 14:36 — forked from ScottPhillips/.htaccess
Common .htaccess Redirects
#301 Redirects for .htaccess
#Redirect a single page:
Redirect 301 /pagename.php http://www.domain.com/pagename.html
#Redirect an entire site:
Redirect 301 / http://www.domain.com/
#Redirect an entire site to a sub folder
Redirect 301 / http://www.domain.com/subfolder/
@asanchez75
asanchez75 / netrw quick reference.md
Created November 10, 2019 19:39 — forked from t-mart/netrw quick reference.md
A quick reference for Vim's built-in netrw file selector.
Map Action
<F1> Causes Netrw to issue help
<cr> Netrw will enter the directory or read the file
<del> Netrw will attempt to remove the file/directory
- Makes Netrw go up one directory
a Toggles between normal display, hiding (suppress display of files matching g:netrw_list_hide) showing (display only files which match g:netrw_list_hide)
c Make browsing directory the current directory
C Setting the editing window
d Make a directory
@asanchez75
asanchez75 / Oh my zsh with autosuggestions & syntax-highlighting.md
Created October 9, 2019 14:00 — forked from dogrocker/Oh my zsh with autosuggestions & syntax-highlighting.md

Oh my zsh.

Install with curl

sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"

Enabling Plugins (zsh-autosuggestions & zsh-syntax-highlighting)

  • Download zsh-autosuggestions by
@asanchez75
asanchez75 / screen_cheatsheet.markdown
Created September 11, 2019 22:11 — forked from jctosta/screen_cheatsheet.markdown
Screen Cheatsheet

Screen Quick Reference

Basic

Description Command
Start a new session with session name screen -S <session_name>
List running sessions / screens screen -ls
Attach to a running session screen -x
Attach to a running session with name screen -r <session_name>
@asanchez75
asanchez75 / haproxy.cfg
Created May 18, 2019 19:28 — forked from BartKrol/haproxy.cfg
HAProxy Websockets config
global
maxconn 4096
defaults
mode http
balance roundrobin
option redispatch
option forwardfor
timeout connect 5s
@asanchez75
asanchez75 / postgres-outage.md
Created May 7, 2019 12:40 — forked from andywer/postgres-outage.md
Post Mortem: Postgres outage on 2018-08-20

2018-08-20: Postgres failure

What happened

The PostgreSQL container stopped unexpectedly, was automatically restarted, but suddenly didn't accept any connections anymore. Neither from the API service containers nor from the Macbook over the internet.

Error in logs:

FATAL:  pg_hba.conf rejects connection for host "10.0.1.2", user "postgres", database "******", SSL off