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DevOps Transformation

A successful DevOps transformation should not only institute good development/deployment/operational best-practices but should instill a spirit of 'continuous transformation' among the team.

What it isnt:

  • Easy
  • Cure-all
  • A solution for technical debt
  • Free
  • Fast
View haproxy.cfg
log local2
chroot /var/lib/haproxy
pidfile /var/run/
maxconn 4000
user haproxy
group haproxy
# Modify this file accordingly for your specific requirement.
# 1. Delete all existing rules
iptables -F
# 2. Set default chain policies
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT DROP
View gist:f40fe593623cb9f5c55e9bd4d729f861
man() {
env \
LESS_TERMCAP_mb=$(printf "\e[1;31m") \
LESS_TERMCAP_md=$(printf "\e[1;31m") \
LESS_TERMCAP_me=$(printf "\e[0m") \
LESS_TERMCAP_se=$(printf "\e[0m") \
LESS_TERMCAP_so=$(printf "\e[1;44;33m") \
LESS_TERMCAP_ue=$(printf "\e[0m") \
LESS_TERMCAP_us=$(printf "\e[1;32m") \
man "$@"
#brew install rename (for macosx)
rename 's/^\.*//' .*
View rename git tag
git tag new old
git tag -d old
git push origin :refs/tags/old
git push --tags
View perlRegexNotes.txt
/i makes the regex match case insensitive.
/s enables "single-line mode". In this mode, the dot matches newlines.
/m enables "multi-line mode". In this mode, the caret and dollar match before and after newlines in the subject string.
/x enables "free-spacing mode". In this mode, whitespace between regex tokens is ignored, and an unescaped # starts a comment.
Regular expressions
my $variable =~ s/ /_/ig;