refresh

#!/bin/bash
# vi: set sw=4 ts=4 ai:

# Program  : refresh
# Author   : Ton Kersten
# Date     : 03-01-2019

# Refresh the Ansible master directory and
# Install all roles

# Determine the program name and the 'running directory'
IAM="${0##*/}"
CRD="$( [[ "$(printf "${0}" | cut -c 1 )" = "." ]] &&
		{	printf "${PWD}/${0}"
		} || {
			printf "${0}"
		})"
CRD="${CRD%/*}"
CUR="${PWD}"

# Define where it all ends up
ANSIBLE_DIR="/etc/ansible"

# Locking mechanism
runs="$(ps -ef | grep '[a]nsible_run')"
if [[ ${runs} == *ansible_run* ]]
then
	echo "ansible_run is triggered, please wait!"
	exit 1
fi
sleep 1
runs="$(ps -ef | grep '[a]nsible_run')"
if [[ ${runs} == *ansible_run* ]]
then
	echo "ansible_run is triggered, please wait!"
	exit 1
fi

# Read in the config file
source ${ANSIBLE_DIR}/config ||
{	echo "Could not read config file" >&2
	exit 1
}

# Define some constants
T="    "
F=""
GALAXY=0
SETUP=0
DOCS=0

if [[ ( x"${1}" = x"-h" ) || ( x"${1}" = x"--help" ) ]]
then
	cat <<- @EOF
		Syntax: refresh [-f|--force] [-n|--no-galaxy] [-s|--setup-only] [environment]
		${T}-f|--force          Force redownload of all roles
		${T}-n|--no-galaxy      Do not download the Ansible Galaxy roles
		${T}-s|--setup-only     Only refresh the "setup" master role
		${T}-d|--docs-only      Only refresh the documentation
		${T}environment         Only refresh the selected environment
	@EOF
	exit
fi

if [[ ( x"${1}" = x"-f" ) || ( x"${1}" = x"--force" ) ]]
then
	F="--force"
	shift
fi

if [[ ( x"${1}" = x"-n" ) || ( x"${1}" = x"--no-galaxy" ) ]]
then
	# We should skip downloading from online Ansible Galaxy
	GALAXY=1
	shift
fi

if [[ ( x"${1}" = x"-s" ) || ( x"${1}" = x"--setup-only" ) ]]
then
	SETUP=1
	shift
fi

if [[ ( x"${1}" = x"-d" ) || ( x"${1}" = x"--docs-only" ) ]]
then
	DOCS=1
	shift
fi

# Extra params (for environments)
case "${1:-}"
in
	prd)	ENVS="prd"				;;
	acc)	ENVS="acc"				;;
	tst)	ENVS="tst"				;;
	dev)	ENVS="dev"				;;
	svc)	ENVS="prd"				;;
	rsc)	ENVS="dev"				;;
	all)	ENVS="dev tst acc prd"	;;
	*)		ENVS="dev tst acc prd"	;;
esac

cat <<- @EOF
	#
	# Refreshing setup role
	#
@EOF
cd "${ANSIBLE_DIR}"
git pull --force
[[ ${SETUP} -eq 1 ]] && exit 0

# Refresh the documentation
cat <<- @EOF
	#
	# Refreshing documentation
	#
@EOF
if [[ -d "${ANSIBLE_DIR}/docs" ]]
then
	cd "${ANSIBLE_DIR}/docs"
	git pull --force
	cd - > /dev/null
else
	git clone ${git_http}/docs.git
fi
[[ ${DOCS} -eq 1 ]] && exit 0

if [[ ${GALAXY} -eq 0 ]]
then
	cat <<- @EOF
		#
		# Installing roles from the Galaxy
		#
	@EOF
    ansible-galaxy install ${F} -p galaxy -r galaxy.yml
    echo
fi

for envi in ${ENVS}
do
	cat <<- @EOF
		#
		# Installing roles for "${envi}"
		#
	@EOF
	sed "s/version:.*/version: ${envi}/" roles.yml > /tmp/roles.yml
	[[ ! -d roles/${envi} ]] && mkdir -p roles/${envi}
	ansible-galaxy install ${F} -p roles/${envi} -r /tmp/roles.yml
	echo
done

# For svc (svc is production)
if [[ ${ENVS} == *prd* ]]
then
	cat <<- @EOF
		#
		# Installing roles for "svc"
		#
	@EOF
	[[ -d roles/svc ]] && rm -rf "${ANSIBLE_DIR}/roles/svc"
	cp -rp "${ANSIBLE_DIR}/roles/prd" "${ANSIBLE_DIR}/roles/svc"
	echo
fi

# For rsc (rsc is development)
if [[ ${ENVS} == *dev* ]]
then
	cat <<- @EOF
		#
		# Installing roles for "rsc"
		#
	@EOF
	[[ -d roles/rsc ]] && rm -rf "${ANSIBLE_DIR}/roles/rsc"
	cp -rp "${ANSIBLE_DIR}/roles/dev" "${ANSIBLE_DIR}/roles/rsc"
	echo
fi

echo