Stefano Zanella stefanozanella

The procedure below is done on a CentOS 6.3 x86_64 hypervisor

Create qcow image:

qemu-img create -f qcow2 ubuntu-12.10-server-amd64.img 5G

Download Ubuntu server ISO:

wget "http://www.ubuntu.com/start-download?distro=server&bits=64&release=latest"

Booting with CNXSoft image

Reference: http://www.cnx-software.com/2012/07/31/84-mb-minimal-raspbian-armhf-image-for-raspberry-pi/

curl -O https://dl.dropbox.com/u/45842273/2012-07-15-wheezy-raspian-minimal.img.7z

yum install p7zip
7za e 2012-07-15-wheezy-raspian-minimal.img.7z

qemu-system-arm -kernel kernel-qemu -cpu arm1176 -m 256 -M versatilepb -no-reboot -serial stdio -append "root=/dev/sda2 panic=1" -hda 2012-07-15-wheezy-raspian-minimal.img -net nic -net user -vnc :0 -net tap,ifname=vnet0,script=no,downscript=no

Test with External Function

When

You want to test a resource definition (class, defined type) that uses a function provided by a third-party module your module depends upon. It's supposed that you're implementing your tests with rspec-puppet.

How

Safe Default

When

You have a defined type and want to use a default value for a parameter from a params class.

How

Set the default value of the variable as undef, then put a conditional after including the params class in the class body in which you set another internal variable with the value of the params class variable or the user-defined value.

Making Gerrit and LDAP speak in tongues together via SSL

If you're an experienced Java developer or container/AS user, you'll probably want to just skip this, since it involves just some Java tools and standards techniques.
If you, however, like me, have only scratched the surface of the ceremony of the Java world (no troll intended), then you can probably find this useful, since I couldn't find proper documentation about this but had to assembly it together from various sources.

I started to configure a Gerrit instance on our company's server to start putting a bit of order in the mess that is our structure by now. Since the instance is private, I didn't want to enable OpenID authentication, nor I wanted to set it in development mode (aka everyone's invited). Having to choose between offloading authentication to an HTTP proxy and setting up an LDAP backend, I opted for the latter. Also, to complicate things further, I have not only enabled SSL support on the LDAP server, but I required _strict client c

	export GIT_CURL_VERBOSE=1
	git clone https://review.derecom.it/example.git
	* Couldn't find host review.derecom.it in the .netrc file; using defaults
	* About to connect() to review.derecom.it port 443 (#0)
	* Trying 172.16.32.248... * Connected to review.derecom.it (172.16.32.248) port 443 (#0)
	* Initializing NSS with certpath: sql:/etc/pki/nssdb
	* CAfile: /etc/pki/tls/certs/ca-bundle.crt
	CApath: none
	* Peer's certificate issuer is not recognized: 'CN=Derecom Authentication CA,OU=PKI,O=Derecom srl,L=Padova,ST=Veneto,C=IT'
	* NSS error -8179

	echo "ttyS0" > /etc/securetty

	vi /etc/grub.conf
	# Add console=ttyS0 to the end of kernel line(s)

	vi /etc/sysconfig/init
	# Edit ACTIVE_CONSOLES to look like:
	ACTIVE_CONSOLES="/dev/tty[1-6] /dev/ttyS0"

	# If on a live system, do the following