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xmpp.chapril.org-ejabberd/docker/lib/base_functions.sh

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2016-11-11 00:12:54 +01:00
is_set() {
local var=$1
[[ -n $var ]]
}
is_zero() {
local var=$1
[[ -z $var ]]
}
file_exist() {
local file=$1
[[ -e $file ]]
}
is_true() {
local var=${1,,}
local choices=("yes" "1" "y" "true")
for ((i=0;i < ${#choices[@]};i++)) {
[[ "${choices[i]}" == $var ]] && return 0
}
return 1
}
log() {
local message=$1
echo $message
}
# overwrite this function to get hostname from other sources
# like dns or etcd
get_nodename() {
log ${HOSTNAME}
}
join_cluster() {
local cluster_node=$1
is_zero ${cluster_node} \
&& exit 0
log "Join cluster..."
local erlang_node_name=${ERLANG_NODE%@*}
local erlang_cluster_node="${erlang_node_name}@${cluster_node}"
response=$(${EJABBERDCTL} ping ${erlang_cluster_node})
while [ "$response" != "pong" ]; do
log "Waiting for ${erlang_cluster_node}..."
sleep 2
response=$(${EJABBERDCTL} ping ${erlang_cluster_node})
done
log "Join cluster at ${erlang_cluster_node}... "
NO_WARNINGS=true ${EJABBERDCTL} join_cluster $erlang_cluster_node
if [ $? -eq 0 ]; then
touch ${CLUSTER_NODE_FILE}
else
log "cloud not join cluster"
exit 1
fi
}