openstack-ansible/scripts/bootstrap-ansible.sh
Markos Chandras 4e7e1c5104 scripts: bootstrap-ansible.sh: Do not error on 'alternatives' command
update-alternatives exits with error if there are no multiple
providers for 'pip'. In that case, we should ignore the error since the
correct 'pip' is already set.

Change-Id: Ife27404688e6996fe8a2774c2644743701854339
2017-10-04 12:21:17 +01:00

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#!/usr/bin/env bash
# Copyright 2014, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# (c) 2014, Kevin Carter <kevin.carter@rackspace.com>
## Shell Opts ----------------------------------------------------------------
set -e -u -x
## Vars ----------------------------------------------------------------------
export HTTP_PROXY=${HTTP_PROXY:-""}
export HTTPS_PROXY=${HTTPS_PROXY:-""}
export ANSIBLE_PACKAGE=${ANSIBLE_PACKAGE:-"ansible==2.3.2.0"}
export ANSIBLE_ROLE_FILE=${ANSIBLE_ROLE_FILE:-"ansible-role-requirements.yml"}
export SSH_DIR=${SSH_DIR:-"/root/.ssh"}
export DEBIAN_FRONTEND=${DEBIAN_FRONTEND:-"noninteractive"}
# Set the role fetch mode to any option [galaxy, git-clone]
export ANSIBLE_ROLE_FETCH_MODE=${ANSIBLE_ROLE_FETCH_MODE:-git-clone}
# This script should be executed from the root directory of the cloned repo
cd "$(dirname "${0}")/.."
## Functions -----------------------------------------------------------------
info_block "Checking for required libraries." 2> /dev/null ||
source scripts/scripts-library.sh
## Main ----------------------------------------------------------------------
info_block "Bootstrapping System with Ansible"
# Store the clone repo root location
export OSA_CLONE_DIR="$(pwd)"
# Set the variable to the role file to be the absolute path
ANSIBLE_ROLE_FILE="$(readlink -f "${ANSIBLE_ROLE_FILE}")"
OSA_INVENTORY_PATH="$(readlink -f playbooks/inventory)"
OSA_PLAYBOOK_PATH="$(readlink -f playbooks)"
# Create the ssh dir if needed
ssh_key_create
# Determine the distribution which the host is running on
determine_distro
# Prefer dnf over yum for CentOS.
which dnf &>/dev/null && RHT_PKG_MGR='dnf' || RHT_PKG_MGR='yum'
# Install the base packages
case ${DISTRO_ID} in
centos|rhel)
$RHT_PKG_MGR -y install \
git curl autoconf gcc gcc-c++ nc \
python2 python2-devel \
openssl-devel libffi-devel \
libselinux-python
# CentOS base does not include a recent
# enough version of virtualenv or pip,
# so we do not bother trying to install
# them.
;;
ubuntu)
apt-get update
DEBIAN_FRONTEND=noninteractive apt-get -y install \
git-core curl gcc netcat \
python-minimal python-dev \
python3 python3-dev \
libssl-dev libffi-dev \
python-apt python3-apt \
python-virtualenv
;;
opensuse)
zypper -n install -l git-core curl autoconf gcc gcc-c++ \
netcat-openbsd python python-xml python-devel gcc \
libffi-devel libopenssl-devel \
python-virtualenv
# Leap ships with python3.4 which is not supported by ansible and as
# such we are using python2
# See https://github.com/ansible/ansible/issues/24180
PYTHON_EXEC_PATH="/usr/bin/python2"
alternatives --set pip /usr/bin/pip2.7 || true
;;
esac
# Ensure we use the HTTPS/HTTP proxy with pip if it is specified
PIP_OPTS=""
if [ -n "$HTTPS_PROXY" ]; then
PIP_OPTS="--proxy $HTTPS_PROXY"
elif [ -n "$HTTP_PROXY" ]; then
PIP_OPTS="--proxy $HTTP_PROXY"
fi
# Figure out the version of python is being used
PYTHON_EXEC_PATH="${PYTHON_EXEC_PATH:-$(which python3 || which python2 || which python)}"
PYTHON_VERSION="$($PYTHON_EXEC_PATH -c 'import sys; print(".".join(map(str, sys.version_info[:3])))')"
# Use https when Python with native SNI support is available
UPPER_CONSTRAINTS_PROTO=$([ "$PYTHON_VERSION" == $(echo -e "$PYTHON_VERSION\n2.7.9" | sort -V | tail -1) ] && echo "https" || echo "http")
# Set the location of the constraints to use for all pip installations
export UPPER_CONSTRAINTS_FILE=${UPPER_CONSTRAINTS_FILE:-"$UPPER_CONSTRAINTS_PROTO://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt?id=$(awk '/requirements_git_install_branch:/ {print $2}' playbooks/defaults/repo_packages/openstack_services.yml)"}
# Install virtualenv if it is not already installed,
# but also make sure it is at least version 13.x or above
# so that it supports using the no-pip, no-setuptools
# and no-wheels options (the last one was added in v13.0.0).
VIRTUALENV_VERSION=$(virtualenv --version 2>/dev/null | cut -d. -f1)
if [[ "${VIRTUALENV_VERSION}" -lt "13" ]]; then
# Install pip on the host if it is not already installed,
# but also make sure that it is at least version 7.x or above
# so that it supports the use of the constraint option which
# was added in pip 7.1.
PIP_VERSION=$(pip --version 2>/dev/null | awk '{print $2}' | cut -d. -f1)
if [[ "${PIP_VERSION}" -lt "7" ]]; then
get_pip ${PYTHON_EXEC_PATH}
# Ensure that our shell knows about the new pip
hash -r pip
fi
pip install ${PIP_OPTS} \
--constraint ${UPPER_CONSTRAINTS_FILE} \
virtualenv \
|| pip install ${PIP_OPTS} \
--constraint ${UPPER_CONSTRAINTS_FILE} \
--isolated \
virtualenv
# Ensure that our shell knows about the new pip
hash -r virtualenv
fi
# Create a Virtualenv for the Ansible runtime
if [ -f "/opt/ansible-runtime/bin/python" ]; then
VENV_PYTHON_VERSION="$(/opt/ansible-runtime/bin/python -c 'import sys; print(".".join(map(str, sys.version_info[:3])))')"
if [ "$PYTHON_VERSION" != "$VENV_PYTHON_VERSION" ]; then
rm -rf /opt/ansible-runtime
fi
fi
virtualenv --python=${PYTHON_EXEC_PATH} \
--clear \
--no-pip --no-setuptools --no-wheel \
/opt/ansible-runtime
# Install pip, setuptools and wheel into the venv
get_pip /opt/ansible-runtime/bin/python
# The vars used to prepare the Ansible runtime venv
PIP_COMMAND="/opt/ansible-runtime/bin/pip"
PIP_OPTS+=" --constraint global-requirement-pins.txt"
PIP_OPTS+=" --constraint ${UPPER_CONSTRAINTS_FILE}"
# When upgrading there will already be a pip.conf file locking pip down to the
# repo server, in such cases it may be necessary to use --isolated because the
# repo server does not meet the specified requirements.
# Install ansible and the other required packages
${PIP_COMMAND} install ${PIP_OPTS} -r requirements.txt ${ANSIBLE_PACKAGE} \
|| ${PIP_COMMAND} install --isolated ${PIP_OPTS} -r requirements.txt ${ANSIBLE_PACKAGE}
# Install our osa_toolkit code from the current checkout
$PIP_COMMAND install -e .
# Ensure that Ansible binaries run from the venv
pushd /opt/ansible-runtime/bin
for ansible_bin in $(ls -1 ansible*); do
if [ "${ansible_bin}" == "ansible" ] || [ "${ansible_bin}" == "ansible-playbook" ]; then
# For the 'ansible' and 'ansible-playbook' commands we want to use our wrapper
ln -sf /usr/local/bin/openstack-ansible /usr/local/bin/${ansible_bin}
else
# For any other commands, we want to link directly to the binary
ln -sf /opt/ansible-runtime/bin/${ansible_bin} /usr/local/bin/${ansible_bin}
fi
done
popd
# Write the OSA Ansible rc file
sed "s|OSA_INVENTORY_PATH|${OSA_INVENTORY_PATH}|g" scripts/openstack-ansible.rc > /usr/local/bin/openstack-ansible.rc
sed -i "s|OSA_PLAYBOOK_PATH|${OSA_PLAYBOOK_PATH}|g" /usr/local/bin/openstack-ansible.rc
sed -i "s|OSA_GROUP_VARS_DIR|${OSA_CLONE_DIR}/group_vars/|g" /usr/local/bin/openstack-ansible.rc
sed -i "s|OSA_HOST_VARS_DIR|${OSA_CLONE_DIR}/host_vars/|g" /usr/local/bin/openstack-ansible.rc
# Create openstack ansible wrapper tool
cat > /usr/local/bin/openstack-ansible <<EOF
#!/usr/bin/env bash
# Copyright 2014, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# (c) 2014, Kevin Carter <kevin.carter@rackspace.com>
# OpenStack wrapper tool to ease the use of ansible with multiple variable files.
export PATH="/opt/ansible-runtime/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:${PATH}"
function info() {
if [ "\${ANSIBLE_NOCOLOR:-0}" -eq "1" ]; then
echo -e "\${@}"
else
echo -e "\e[0;35m\${@}\e[0m"
fi
}
# Figure out which Ansible binary was executed
RUN_CMD=\$(basename \${0})
# Apply the OpenStack-Ansible configuration selectively.
if [[ "\${PWD}" == *"${OSA_CLONE_DIR}"* ]] || [ "\${RUN_CMD}" == "openstack-ansible" ]; then
# Source the Ansible configuration.
. /usr/local/bin/openstack-ansible.rc
# Check whether there are any user configuration files
if ls -1 /etc/openstack_deploy/user_*.yml &> /dev/null; then
# Discover the variable files.
VAR1="\$(for i in \$(ls /etc/openstack_deploy/user_*.yml); do echo -ne "-e @\$i "; done)"
# Provide information on the discovered variables.
info "Variable files: \"\${VAR1}\""
fi
else
# If you're not executing 'openstack-ansible' and are
# not in the OSA git clone root, then do not source
# the configuration and do not add extra vars.
VAR1=""
fi
# Execute the Ansible command.
if [ "\${RUN_CMD}" == "openstack-ansible" ] || [ "\${RUN_CMD}" == "ansible-playbook" ]; then
ansible-playbook "\${@}" \${VAR1}
else
\${RUN_CMD} "\${@}"
fi
EOF
# Ensure wrapper tool is executable
chmod +x /usr/local/bin/openstack-ansible
echo "openstack-ansible wrapper created."
# If the Ansible plugins are in the old location remove them.
[[ -d "/etc/ansible/plugins" ]] && rm -rf "/etc/ansible/plugins"
# Update dependent roles
if [ -f "${ANSIBLE_ROLE_FILE}" ]; then
if [[ "${ANSIBLE_ROLE_FETCH_MODE}" == 'galaxy' ]];then
# Pull all required roles.
ansible-galaxy install --role-file="${ANSIBLE_ROLE_FILE}" \
--force
elif [[ "${ANSIBLE_ROLE_FETCH_MODE}" == 'git-clone' ]];then
pushd tests
ansible-playbook get-ansible-role-requirements.yml \
-i ${OSA_CLONE_DIR}/tests/test-inventory.ini \
-e role_file="${ANSIBLE_ROLE_FILE}" \
-vvv
popd
else
echo "Please set the ANSIBLE_ROLE_FETCH_MODE to either of the following options ['galaxy', 'git-clone']"
exit 99
fi
fi
echo "System is bootstrapped and ready for use."