ceph-ansible/generate_group_vars_sample.sh

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#!/usr/bin/env bash
set -euo pipefail
#############
# VARIABLES #
#############
basedir=$(dirname "$0")
no_header="ceph-docker-common" # pipe separated list of roles with no header, MUST end with '$', e.g: 'foo$|bar$'
merge_in_all="ceph-common$|ceph-docker-common$" # pipe separated list of roles you want to merge in all.yml.sample, MUST end with '$', e.g: 'foo$|bar$'
#############
# FUNCTIONS #
#############
populate_header () {
cat <<EOF > "$basedir"/group_vars/"$output"
---
# Variables here are applicable to all host groups NOT roles
# This sample file generated by $(basename "$0")
# Dummy variable to avoid error because ansible does not recognize the
# file as a good configuration file when no variable in it.
dummy:
EOF
}
generate_group_vars_file () {
if [ "$(uname)" == "Darwin" ]; then
sed '/^---/d; s/^\([A-Za-z[:space:]]\)/#\1/' \
"$defaults" >> "$basedir"/group_vars/"$output"
echo >> "$basedir"/group_vars/"$output"
elif [ "$(uname -s)" == "Linux" ]; then
sed '/^---/d; s/^\([A-Za-z[:space:]].\+\)/#\1/' \
"$defaults" >> "$basedir"/group_vars/"$output"
echo >> "$basedir"/group_vars/"$output"
else
echo "Unsupported platform"
exit 1
fi
}
########
# MAIN #
########
for role in "$basedir"/roles/ceph-*; do
rolename=$(basename "$role")
if echo "$rolename" | grep -qE "$merge_in_all"; then
output="all.yml.sample"
elif [[ $rolename == "ceph-agent" ]]; then
output="agent.yml.sample"
elif [[ $rolename == "ceph-fetch-keys" ]]; then
output="ceph-fetch-keys.yml.sample"
else
output="${rolename:5}s.yml.sample"
fi
# Do not re-regenerate the header for certain roles
# since we merge them in all.yml.sample
if ! echo "$rolename" | grep -qE "$no_header"; then
populate_header
fi
defaults="$role"/defaults/main.yml
if [[ ! -f $defaults ]]; then
continue
fi
generate_group_vars_file
done