| $ docker run -it ubuntu | |
| root@14d8108342b9:/# cat /etc/issue | |
| Ubuntu 16.04.1 LTS \n \l | |
| root@14d8108342b9:/# apt-get -qq update && apt-get -qq upgrade && apt-get -qq install build-essential | |
| debconf: delaying package configuration, since apt-utils is not installed | |
| (Reading database ... 7259 files and directories currently installed.) | |
| Preparing to unpack .../libc6_2.23-0ubuntu5_amd64.deb ... | |
| debconf: unable to initialize frontend: Dialog | |
| debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 76.) | |
| debconf: falling back to frontend: Readline |
| # List all network interfaces on my Mac | |
| ``` | |
| $ networksetup -listallnetworkservices | |
| An asterisk (*) denotes that a network service is disabled. | |
| Display Ethernet | |
| Thunderbolt Ethernet | |
| Wi-Fi | |
| Display FireWire | |
| Bluetooth PAN |
| #!/bin/sh | |
| # This example script will check to make sure that an earlier instance isn't already running before executing again. | |
| # Useful for cronjobs that run every 5 minutes, and you don't want a backlog of processes piling up because of a slowness issue | |
| # Borrowed from http://stackoverflow.com/questions/1440967/how-do-i-make-sure-my-bash-script-isnt-already-running | |
| # Modified to work on FreeBSD as well as Linux | |
| # Example usage: | |
| #$ ./checkIfRunning.sh | |
| #Sleeping for 600 seconds. |
| [root@buildhost ~]# yum install ruby-devel gcc --quiet -y | |
| [root@buildhost ~]# gem install fpm | |
| Building native extensions. This could take a while... | |
| Successfully installed json-1.8.3 | |
| Successfully installed cabin-0.7.1 | |
| Successfully installed backports-3.6.4 | |
| Successfully installed arr-pm-0.0.10 | |
| Successfully installed childprocess-0.5.6 | |
| Successfully installed fpm-1.3.3 | |
| 6 gems installed |
| # Compiled source # | |
| ################### | |
| *.com | |
| *.class | |
| *.dll | |
| *.exe | |
| *.o | |
| *.so | |
| # Packages # |
| # Compiled source # | |
| ################### | |
| *.com | |
| *.class | |
| *.dll | |
| *.exe | |
| *.o | |
| *.so | |
| # Packages # |
Following the example at http://docs.puppetlabs.com/hiera/1/complete_example.html
How to print all elements in a Hiera array, per https://ask.puppetlabs.com/question/11181/why-doesnt-hiera-append-the-vmware-classs-to-my-classes-array/
Printing Hiera arrays within Puppet
[root@puppet3 puppet]# puppet apply -e '$message = hiera_array(classes) notify { $message: }'
Notice: Compiled catalog for puppet3.example.org in environment production in 0.03 seconds
Notice: vmwaretoolsnn
| find /etc/puppet/hieradata/ -name "*.yaml" | while read file; do echo "file=$file"; ruby -e "require 'yaml'; YAML.load_file('$file')"; done | |
| ### Use case | |
| [root@puppet3 hieradata]# find /etc/puppet/hieradata/ -name "*.yaml" | while read file; do echo "file=$file"; ruby -e "require 'yaml'; YAML.load_file('$file')"; done | |
| file=/etc/puppet/hieradata/common.yaml | |
| file=/etc/puppet/hieradata/virtual/vmware.yaml | |
| file=/etc/puppet/hieradata/osfamily/Debian.yaml | |
| file=/etc/puppet/hieradata/osfamily/RedHat.yaml | |
| /usr/lib/ruby/1.8/yaml.rb:133:in `load': syntax error on line 4, col 26: ` vmwaretools::working_dir: /opt/vmware' (ArgumentError) | |
| from /usr/lib/ruby/1.8/yaml.rb:133:in `load' |
| #!/bin/sh | |
| # Search the module path for all key values used in a hiera_array lookup, and then perform the equivalent of a hiera_array() from puppet. | |
| # Borrowed from https://ask.puppetlabs.com/question/10999/hiera-how-can-i-tell-which-class-triggered-expected-array-and-got-nilclass/?answer=11006#post-id-11006 | |
| # The original: | |
| # ``` | |
| # for y in $(for x in $(puppet config print modulepath | sed -e "s/:/ /g"); do grep -PIRho "(?<=hiera_array\(['|\"|$])([^'|^\"|^,|^\)]+)" $x; done); do echo hiera -d -a -c $(puppet config print confdir)/hiera.yaml $y <key=value pairs as needed for your hiera.yaml>; done | |
| # ``` |
Add the following chunk to your existing ISC dhcpd.conf file.
if exists user-class and ( option user-class = "iPXE" ) {
filename "http://boot.smidsrod.lan/bootstrap.ipxe";
}
else {
filename "undionly.kpxe";
}
(or see https://gist.github.com/4008017 for a more elaborate setup