charm-ceph-osd/hooks/install_deps
Ryan Beisner f1fffb7885
Update pre-install hooks to fail on error
The pre-install operations may fail, yet that failure is not
elevated to the user. This masks the failure and makes early
package install issues difficult to troubleshoot.

If the basic pre-install script fails, the charm should not
proceed to later hooks as the requirements may not be met.

Hashbangs for bash should specify -e (errexit) on all of the
pre-install bash scripts.

Change-Id: If6ddd58fc6aeb1e9bf359a037a85a2ce2ae05d3c
Closes-bug: #1815243
Partial-bug: #1815231
2019-02-08 15:35:12 -06:00

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#!/bin/bash -e
# Wrapper to ensure that python dependencies are installed before we get into
# the python part of the hook execution
declare -a DEPS=('dnspython' 'pyudev' 'netaddr' 'netifaces')
check_and_install() {
pkg="${1}-${2}"
if ! dpkg -s ${pkg} 2>&1 > /dev/null; then
apt-get -y install ${pkg}
fi
}
PYTHON="python3"
for dep in ${DEPS[@]}; do
check_and_install ${PYTHON} ${dep}
done