ramnathv

Creating a clean gh-pages branch

This is the sequence of steps to follow to create a root gh-pages branch. It is based on a question at [SO]

cd /path/to/repo-name
git symbolic-ref HEAD refs/heads/gh-pages
rm .git/index
git clean -fdx
echo "My GitHub Page" > index.html

emboss

require 'openssl'
require 'base64'

rsa = OpenSSL::PKey::RSA.new(2048)
modulus = rsa.n
exponent = rsa.e

ary = [OpenSSL::ASN1::Integer.new(modulus), OpenSSL::ASN1::Integer.new(exponent)]
pub_key = OpenSSL::ASN1::Sequence.new(ary)
base64 = Base64.encode64(pub_key.to_der)

thbar

One can use MD5 or plain text diff to see differences in PDF files. If that's not enough, here's how to use diff-pdf which knows how to diff based on appearance or words:

• brew install diff-pdf
• edit your ~/.gitconfig to add this:

[difftool "diffpdf"]
  cmd = diff-pdf --view \"$LOCAL\" \"$REMOTE\"

jedi4ever

- Tune /etc/ssh/sshd_config

UseDNS no  # Disable DNS lookups
GSSAPIAuthentication no # Disable negotation of slow GSSAPI

don't forget to restart it, use a script provider to set it , or create it with veewee or snapshot it

- Tune Vagrantfile

    vb.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]

raphink

File Manipulation Approaches

Full configurations

Static content

• Software/script => have you considered packaging it?
• binary/large data file => add metadata (git + vcsrepo type, maybe even git-annex or git-lfs?)
• Puppet >= 3.7:

raphink

General and Concepts

• Declarative Deployments & why it matters

Over the last 30 years, the Configuration Management community has learned that using a declarative approach to resource management is beneficial for both stability and change management. How does this apply to the new paradigm of Kubernetes deployments?

• YAML Engineering: why we need a new paradigm

YAML has become the de-facto standard to express resources in many fields linked to DevOps practices. What are YAML's strengths and weaknesses, and what are the other options going forward?

raphink

FROM grahamdumpleton/mod-wsgi-docker:python-2.7-onbuild
CMD [ "wsgi.py" ]

raphink

---
puppetmaster:
  image: 'camptocamp/puppetserver:2.2.1-3'
  restart: 'always'
  environment:
    JAVA_ARGS: '-Xmx10g -Xms10g -XX:MaxPermSize=256m -XX:OnOutOfMemoryError="kill -9 %p" -Djava.security.egd=/dev/urandom -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=9010 -Dcom.sun.management.jmxremote.local.only=false -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false'
    MAX_ACTIVE_INSTANCES: '5'
  hostname: 'puppet.example.com'
  links:
    - 'puppetdb'

raphink

COPY /docker-entrypoint.sh /
COPY /docker-entrypoint.d/* /docker-entrypoint.d/
ONBUILD COPY /docker-entrypoint.d/* /docker-entrypoint.d/
ENTRYPOINT ["/docker-entrypoint.sh", "/opt/puppetlabs/puppet/bin/mcollectived"]
CMD ["--no-daemonize"]

raphink

FROM debian:jessie

ENV GOPATH=/go
RUN apt-get update && apt-get install -y golang-go git \
  && go get github.com/camptocamp/github_pki \
  && apt-get autoremove -y golang-go git \
  && rm -rf /var/lib/apt/lists/*