rudymccomb

Run Chef scripts locally

There are several options to run recipes:

• using chef-client with -z option
• using chef-apply
• using chef-solo

Before running Chef recipes on the machine, it should be prepared:

rudymccomb

Provisioning remote server accessible by SSH with Chef and knife-zero.

We have a server(node) accessible by SSH. We want to provision using Chef recipes stored on our local chef repo.

We will use gem knife-zero.

Find an example of Chef repo here.

knife-zero

rudymccomb

#!/bin/sh

echo ""
echo "######################################################"
echo "EC2(Windows2012日本語版)インスタンス起動スクリプト."
echo "######################################################"
## ---------------------------------------------------------------------------
## 実行例
## $ ./run-windows-ec2-instance.sh \
##    -i cs-blog-role \

rudymccomb

#!/bin/bash

sudo apt-get update
sudo apt-get install -y openjdk-6-jre ruby1.8-full libxml2-utils unzip cpanminus build-essential

sudo mkdir -p /usr/local/aws

wget --quiet http://s3.amazonaws.com/ec2-downloads/ec2-api-tools.zip
unzip -qq ec2-api-tools.zip
sudo rsync -a --no-o --no-g ec2-api-tools-*/ /usr/local/aws/ec2/

rudymccomb

#!/bin/bash

set -e
set -u
set -o pipefail

# Return netmask for a given network and CIDR.
cidr_to_netmask() {
    value=$(( 0xffffffff ^ ((1 << (32 - $1)) - 1) ))
    echo "$(( (value >> 24) & 0xff )).$(( (value >> 16) & 0xff )).$(( (value >> 8) & 0xff )).$(( value & 0xff ))"

rudymccomb

Setup Chef server

• Make sure the server is configured with an appropriate hostname that resolves to itself (add hosts entry if needed)
• Download and install Chef server package from: http://downloads.chef.io/chef-server/
• chef-server-ctl reconfigure
• chef-server-ctl user-create admin Chef Administrator [email protected] <password> --filename /tmp/admin.pem
• chef-server-ctl org-create <org-short-name> "<org-full-name>" --association_user admin --filename /tmp/validator.pem
• Use OpenSSL to generate a new cert and key and update: /var/opt/opscode/nginx/ca/<fqdn>.key, /var/opt/opscode/nginx/ca/<fqdn>.crt. Restart services (nginx) with: chef-server-ctl restart

Cleanup and re-initiate a bad install

rudymccomb

Setup Chef server

• Make sure the server is configured with an appropriate hostname that resolves to itself (add hosts entry if needed)
• Download and install Chef server package from: http://downloads.chef.io/chef-server/
• chef-server-ctl reconfigure
• chef-server-ctl user-create admin Chef Administrator [email protected] <password> --filename /tmp/admin.pem
• chef-server-ctl org-create <org-short-name> "<org-full-name>" --association_user admin --filename /tmp/validator.pem
• Use OpenSSL to generate a new cert and key and update: /var/opt/opscode/nginx/ca/<fqdn>.key, /var/opt/opscode/nginx/ca/<fqdn>.crt. Restart services (nginx) with: chef-server-ctl restart

Cleanup and re-initiate a bad install

rudymccomb

#!/bin/bash

DOMAIN=noomii.com

HOSTNAME=hotfix
IPV4='184.73.226.144'

# Set the host name
hostname $HOSTNAME
echo $HOSTNAME > /etc/hostname

rudymccomb

#!/bin/bash

DOMAIN=noomii.com

HOSTNAME=hotfix
IPV4='184.73.226.144'

# Set the host name
hostname $HOSTNAME
echo $HOSTNAME > /etc/hostname

rudymccomb

#!/bin/bash
# bash generate random alphanumeric string
#

# bash generate random 32 character alphanumeric string (upper and lowercase) and 
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)

# bash generate random 32 character alphanumeric string (lowercase only)
cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1