dokku/dokku-postgres
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Properly implement port expose/unexpose

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This commit is contained in:
Jose Diaz-Gonzalez
2015-09-06 22:10:16 -04:00
parent 5a4a87c62f
commit 2bc4c534b8
6 changed files with 169 additions and 58 deletions
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146
functions
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@@ -2,19 +2,21 @@
set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
source "$(dirname "$0")/config"
get_random_port() {
local port=$RANDOM
local quit=0
while [ "$quit" -ne 1 ]; do
netstat -a | grep $port >> /dev/null
if [ $? -gt 0 ]; then
quit=1
else
port=$((port + 1))
fi
get_random_ports() {
local iterations="${1:-1}"
for (( i=0; i < iterations; i++ )); do
local port=$RANDOM
local quit=0
while [ "$quit" -ne 1 ]; do
netstat -an | grep $port > /dev/null
if [ $? -gt 0 ]; then
quit=1
else
port=$((port + 1))
fi
done
echo $port
done
echo $port
}
get_container_ip() {
@@ -54,11 +56,19 @@ service_list() {
else
dokku_log_info1_quiet "$PLUGIN_SERVICE services:"
for SERVICE in $SERVICES; do
dokku_log_verbose "$SERVICE $(service_status $SERVICE)"
dokku_log_verbose "$SERVICE $(service_status "$SERVICE")$(service_exposed_ports "$SERVICE")"
done
fi
}
service_exposed_ports() {
local SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local PORT_FILE="$SERVICE_ROOT/PORT"
[[ ! -f $PORT_FILE ]] && return 0
printf ", exposed port(s): %s" "$(cat "$PORT_FILE")"
}
service_link() {
local APP="$2"
local SERVICE="$1"
@@ -111,6 +121,109 @@ service_status() {
echo "(stopped)" && return 0
}
service_port_expose() {
service_start "$1"
service_port_unpause "$1" "true" "${@:2}"
}
service_port_pause() {
local SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local EXPOSED_NAME="$(get_service_name "$SERVICE").ambassador"
local PORT_FILE="$SERVICE_ROOT/PORT"
local LOG_FAIL="$2"
if [[ "$LOG_FAIL" == "true" ]]; then
[[ ! -f "$PORT_FILE" ]] && dokku_log_fail "Service not exposed"
else
[[ ! -f "$PORT_FILE" ]] && return 0
fi
docker stop "$EXPOSED_NAME" > /dev/null
docker rm "$EXPOSED_NAME" > /dev/null
if [[ "$LOG_FAIL" == "true" ]]; then
dokku_log_info1 "Service $SERVICE unexposed"
fi
}
service_port_unexpose() {
local SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local PORT_FILE="$SERVICE_ROOT/PORT"
service_port_pause "$SERVICE" "true"
rm -rf "$PORT_FILE"
}
service_port_unpause() {
local SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local SERVICE_NAME=$(get_service_name "$SERVICE")
local EXPOSED_NAME="${SERVICE_NAME}.ambassador"
local PORT_FILE="$SERVICE_ROOT/PORT"
local LOG_FAIL="$2"
local PORTS=(${@:3})
PORTS=(${PORTS[@]:-$(get_random_ports ${#PLUGIN_DATASTORE_PORTS[@]})})
local ID=$(cat "$SERVICE_ROOT/ID")
[[ "${#PORTS[@]}" != "${#PLUGIN_DATASTORE_PORTS[@]}" ]] && dokku_log_fail "${#PLUGIN_DATASTORE_PORTS[@]} ports to be exposed need to be provided"
if [[ "$LOG_FAIL" == "true" ]]; then
[[ -f "$PORT_FILE" ]] && PORTS=($(cat "$PORT_FILE")) && dokku_log_fail "Service $SERVICE already exposed on port(s) ${PORTS[*]}"
else
[[ ! -f "$PORT_FILE" ]] && return 0
PORTS=($(cat "$PORT_FILE"))
fi
echo "${PORTS[@]}" > "$PORT_FILE"
docker run -d --link "$SERVICE_NAME:postgres" --name "$EXPOSED_NAME" $(docker_ports_options "${PORTS[@]}") --restart always --label dokku=ambassador --label dokku.ambassador=postgres svendowideit/ambassador > /dev/null
if [[ "$LOG_FAIL" == "true" ]]; then
dokku_log_info1 "Service $SERVICE exposed on port(s) ${PORTS[*]}"
fi
}
docker_ports_options() {
local PORTS=("$@")
for (( i=0; i < ${#PLUGIN_DATASTORE_PORTS[@]}; i++ )); do
echo -n "-p ${PORTS[i]}:${PLUGIN_DATASTORE_PORTS[i]} "
done
}
service_start() {
local SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local SERVICE_NAME=$(get_service_name "$SERVICE")
local ID=$(docker ps -f status=running | grep "$SERVICE_NAME" | awk '{print $1}') || true
[[ -n $ID ]] && dokku_log_warn "Service is already started" && return 0
dokku_log_info1_quiet "Starting container"
local PREVIOUS_ID=$(docker ps -f status=exited | grep "$SERVICE_NAME" | awk '{print $1}') || true
if [[ -n $PREVIOUS_ID ]]; then
docker start "$PREVIOUS_ID" > /dev/null
service_port_unpause "$SERVICE"
dokku_log_info2 "Container started"
else
dokku_log_verbose_quiet "No container exists for $SERVICE"
fi
}
service_stop() {
local SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE";
local SERVICE_NAME=$(get_service_name "$SERVICE")
local ID=$(docker ps -f status=running | grep "$SERVICE_NAME" | awk '{print $1}') || true
[[ -z $ID ]] && dokku_log_warn "Service is already stopped" && return 0
if [[ -n $ID ]]; then
dokku_log_info1_quiet "Stopping container"
docker stop "$SERVICE_NAME" > /dev/null
service_port_pause "$SERVICE"
dokku_log_info2 "Container stopped"
else
dokku_log_verbose_quiet "No container exists for $SERVICE"
fi
}
service_unlink() {
local APP="$2"
local SERVICE="$1"
@@ -133,7 +246,7 @@ service_url() {
local ID="$(cat "$SERVICE_ROOT/ID")"
local IP="$(get_container_ip "$ID")"
local PASSWORD="$(cat "$SERVICE_ROOT/PASSWORD")"
echo "$PLUGIN_SCHEME://postgres:$PASSWORD@$IP:$PLUGIN_DATASTORE_PORT/$SERVICE"
echo "$PLUGIN_SCHEME://postgres:$PASSWORD@$IP:${PLUGIN_DATASTORE_PORTS[0]}/$SERVICE"
}
is_container_status () {
@@ -147,3 +260,8 @@ is_container_status () {
return 1
fi
}
get_service_name() {
local SERVICE="$1"
echo "dokku.${PLUGIN_COMMAND_PREFIX}.$SERVICE"
}