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#!/bin/sh
# Copyright (C) 2013-2014 Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program 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 this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# This is a "morph deploy" configure extension to configure a Baserock
# build node, as part of a distributed building cluster. It uses the
# following variables from the environment:
#
# * DISTBUILD_CONTROLLER: if 'yes', machine is set up as the controller.
# * DISTBUILD_WORKER: if 'yes', machine is set up as a worker.
# * TROVE_ID: hostname and Trove prefix of the server to pull source
# from and push built artifacts to.
# * TROVE_HOST: FQDN of the same server as in TROVE_ID
#
# The following variable is optional:
#
# * ARTIFACT_CACHE_SERVER: by default artifacts are pushed to the same
# Trove that served the source, but you can use a different one.
#
# The following variable is required for worker nodes only:
#
# * CONTROLLERHOST: hostname or IP address of distbuild controller machine.
# * WORKER_SSH_KEY: identity used to authenticate with Trove
#
# The following variable is required for the controller node only:
#
# * WORKERS: hostnames or IP address of worker nodes, comma-separated.
set -e
set -u
# Check that all the variables needed are present:
error_vars=false
if [ "x$DISTBUILD_WORKER" = "x" ]; then
echo "ERROR: DISTBUILD_WORKER needs to be defined."
error_vars=true
fi
if [ "x$DISTBUILD_CONTROLLER" = "x" ]; then
echo "ERROR: DISTBUILD_CONTROLLER needs to be defined."
error_vars=true
fi
if [ "x$TROVE_HOST" = "x" ]; then
echo "ERROR: TROVE_HOST needs to be defined."
error_vars=true
fi
if [ "x$TROVE_ID" = "x" ]; then
echo "ERROR: TROVE_ID needs to be defined."
error_vars=true
fi
if [ "$DISTBUILD_WORKER" = True ]; then
if ! ssh-keygen -lf "$WORKER_SSH_KEY" > /dev/null 2>&1; then
echo "ERROR: WORKER_SSH_KEY is not a vaild ssh key."
error_vars=true
fi
if [ "x$CONTROLLERHOST" = "x" ]; then
echo "ERROR: CONTROLLERHOST needs to be defined."
error_vars=true
fi
fi
if [ "$DISTBUILD_CONTROLLER" = True ]; then
if [ "x$WORKERS" = "x" ]; then
echo "ERROR: WORKERS needs to be defined."
error_vars=true
fi
fi
if "$error_vars"; then
exit 1
fi
ROOT="$1"
DISTBUILD_DATA="$ROOT/etc/distbuild"
mkdir -p "$DISTBUILD_DATA"
# If it's a worker, install the worker ssh key.
if [ "$DISTBUILD_WORKER" = True ]
then
install -m 0644 "$WORKER_SSH_KEY" "$DISTBUILD_DATA/worker.key"
fi
# Create the configuration file
python <<'EOF' >"$DISTBUILD_DATA/distbuild.conf"
import os, sys, yaml
distbuild_configuration={
'TROVE_ID': os.environ['TROVE_ID'],
'TROVE_HOST': os.environ['TROVE_HOST'],
'DISTBUILD_WORKER': os.environ['DISTBUILD_WORKER'],
'DISTBUILD_CONTROLLER': os.environ['DISTBUILD_CONTROLLER'],
'WORKER_SSH_KEY': '/etc/distbuild/worker.key',
}
optional_keys = ('ARTIFACT_CACHE_SERVER', 'CONTROLLERHOST', 'WORKERS',
'TROVE_BACKUP_KEYS')
for key in optional_keys:
if key in os.environ:
distbuild_configuration[key] = os.environ[key]
yaml.dump(distbuild_configuration, sys.stdout, default_flow_style=False)
EOF
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