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Viewing changes to support/provision-testing-environment

Committer: Daniel Manrique
Date: 2014-05-05 19:39:51 UTC
mto: This revision was merged to the branch mainline in revision 2976.
Revision ID: roadmr@ubuntu.com-20140505193951-4y395e5u9fbxao3a

provision-vagrant: A few changes to support other container systems.

This is preliminary work to remove some Vagrant assumptions, to enable
using the same provisioning script with other container/virtualization
systems (particularly to add support for LXC).

- Renamed support/provision-vagrant to provision-test-environment
  to remove the assumption that it only works with vagrant. Vagrantfile
  was updated accordingly.
- Short explanation of how the script runs
- Made CHECKBOX_TOP relocatable to the parameter the script receives,
  though we default to /vagrant if we didn't receive anything else.
  This is because test-in-lxc can place the source tree in an
  unpredictable location and provision needs to be aware of the
  location.
- Made the Vagrant sanity check conditional on $CHECKBOX_TOP being
  /vagrant.
- Modified the code to create the $HOME/src symlink to account for
  different container/VM engines since lxc behavior is different from
  Vagrant, this is explained in the comment for the last section of
  the script.

files added:
support/provision-testing-environment

files removed:
support/provision-vagrant

files modified:
Vagrantfile

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support/provision-testing-environment

#!/bin/sh

# This file is part of Checkbox.

# Written by:

# Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

# Checkbox is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License version 3,

# as published by the Free Software Foundation.

# Checkbox is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with Checkbox. If not, see <http://www.gnu.org/licenses/>.

# Helper script to provision testing containers or environments

# =============================================================

# Vagrant and LXC are explicitly supported, other types of containers (KVM)

# can be made to work but aren't yet guaranteed to.

# This script is entirely run *inside* the VM/container.

# Set CHECKBOX_TOP for all shared scripts. This should indicate the location

# of the checkbox source tree in the VM/container.

# If not passed as the first argument to the script, it defaults to /vagrant

# since by default vagrant mounts the current directory in the host system

# as /vagrant in the VM.

export CHECKBOX_TOP=${1:-/vagrant}

# Make sure that dpkg never stops to have a chat with the user

export DEBIAN_FRONTEND=noninteractive

if [ $CHECKBOX_TOP = "/vagrant" ] ; then

# Vagrant sanity check, see if /vagrant really works.

# On various installations of Ubuntu this is not the case as the cloud images

# we depend on seem to have broken virtualbox tools installation inside. This

# causes the filesystem mounted on /vagrant to crash horribly and kill all

# processes attempting to use it.

if ! find /vagrant -mindepth 1 -maxdepth 1 >/dev/null; then

cat <<__EOM__

E: It seems that /vagrant directory is broken

E: This is a known issue.

E: See this link for a workaround if you have recent-enough VirtualBox:

E: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1252872

E: Alternatively you can use NFS on any version of VirtualBox:

E: http://docs.vagrantup.com/v2/synced-folders/nfs.html

__EOM__

exit 1

else

echo "I: it seems that /vagrant is working okay"

# Add any necessary PPA repositories

$CHECKBOX_TOP/support/install-ppa-dependencies

# Update to have the latest packages, this is needed because the image comes

# with an old (and no longer working) apt cache and links to many packages no

# longer work. This is also needed if the step above actually added any PPAs.

apt-get update

# Update all packages to latest version

# NOTE: this is disabled as it takes a lot of time and we haven't found the

# need to run this. It might have to be re-enabled later if we find that some

# bug (that gets fixed) is affecting our behavior but so far that has not been

# the case.

# apt-get dist-upgrade --yes

# Ensure that certain Debian dependencies are *not* installed

$CHECKBOX_TOP/support/remove-deb-anty-dependencies

set -e

$CHECKBOX_TOP/support/install-deb-dependencies

$CHECKBOX_TOP/support/get-external-tarballs

$CHECKBOX_TOP/support/install-pip-from-source

# Pip executable name is a variable that depends on python version

export PIP=/usr/local/bin/pip-3.*

$CHECKBOX_TOP/support/install-pip-dependencies

$CHECKBOX_TOP/support/develop-projects

# Create a cool symlink so that everyone knows where to go to.

# Vagrant runs the provision script as root, but we want the symlink to /vagrant,

# so we're reduced to assuming the stuff is there and blindly linking.

if [ -d /vagrant ]; then

[ -d /home/vagrant ] && ln --no-dereference --force --symbolic /vagrant /home/vagrant/src

elif [ "$container" = "lxc" ]; then

# In LXC, $HOME is inherited from the invoking environment. Link the source

# location to /home/$user-invoking-lxc/src. This should work consistently

# since all the lxc-attach commands will use the same inherited environment, so

# $user-invoking-lxc should always point to the same place. Under LXC,

# however, the home dir may not exist (as lxc creates only the ubuntu user by

# default), so we need to create the home dir ourselves.

100

[ ! -d $HOME ] && mkdir -p $HOME

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ln --no-dereference --force --symbolic $CHECKBOX_TOP $HOME/src

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