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Add a description to all common functions

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This commit is contained in:
Jose Diaz-Gonzalez
2016-08-29 04:10:42 -04:00
parent 3ed32a0f05
commit b718c233d5
2 changed files with 62 additions and 39 deletions
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98
common-functions
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@@ -2,14 +2,16 @@
set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
docker_ports_options() {
local PORTS=("$@")
declare desc="Exports a list of exposed ports"
declare PORTS=("$@")
for (( i=0; i < ${#PLUGIN_DATASTORE_PORTS[@]}; i++ )); do
echo -n "-p ${PORTS[i]}:${PLUGIN_DATASTORE_PORTS[i]} "
done
}
get_random_ports() {
local iterations="${1:-1}"
declare desc="Retrieves N random ports"
declare iterations="${1:-1}"
for (( i=0; i < iterations; i++ )); do
local port=$RANDOM
local quit=0
@@ -26,41 +28,46 @@ get_random_ports() {
}
get_container_ip() {
docker inspect --format '{{ .NetworkSettings.IPAddress }}' "$1"
declare desc="Retrieves the ip address of a container"
declare CONTAINER_ID="$1"
docker inspect --format '{{ .NetworkSettings.IPAddress }}' "$CONTAINER_ID"
}
get_database_name() {
declare desc="Retrieves a sanitized database name"
declare DATABASE="$1"
# some datastores do not like special characters in database names
# so we need to normalize them out
echo "$1" | tr .- _
echo "$DATABASE" | tr .- _
}
get_service_name() {
local SERVICE="$1"
declare desc="Retrieves a docker service label"
declare SERVICE="$1"
echo "dokku.${PLUGIN_COMMAND_PREFIX}.$SERVICE"
}
get_url_from_config() {
local EXISTING_CONFIG="$1"
local CONFIG_VAR="$2"
declare desc="Retrieves a given _URL from a list of configuration variables"
declare EXISTING_CONFIG="$1" CONFIG_VAR="$2"
echo "$EXISTING_CONFIG" | grep "$CONFIG_VAR" | sed "s/$CONFIG_VAR:\s*//" | xargs
}
is_container_status() {
local CID="$1"
local TEMPLATE="{{.State.$2}}"
declare desc="Returns 0 or 1 depending upon whether a given container has a certain status"
declare CID="$1" STATUS="$2"
local TEMPLATE="{{.State.$STATUS}}"
local CONTAINER_STATUS=$(docker inspect -f "$TEMPLATE" "$CID" || true)
if [[ "$CONTAINER_STATUS" == "true" ]]; then
return 0
else
return 1
fi
return 1
}
remove_from_links_file() {
local SERVICE="$1"
local APP="$2"
declare desc="Removes an app from the service link file"
declare SERVICE="$1" APP="$2"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local LINKS_FILE="$SERVICE_ROOT/LINKS"
@@ -71,20 +78,23 @@ remove_from_links_file() {
}
verify_service_name() {
local SERVICE="$1"
declare desc="Verifies that a service exists"
declare SERVICE="$1"
[[ ! -n "$SERVICE" ]] && dokku_log_fail "(verify_service_name) SERVICE must not be null"
[[ ! -d "$PLUGIN_DATA_ROOT/$SERVICE" ]] && dokku_log_fail "$PLUGIN_SERVICE service $SERVICE does not exist"
return 0
}
service_alias() {
local SERVICE="$1"
declare desc="Retrieves the alias of a service"
declare SERVICE="$1"
local SERVICE_NAME="$(get_service_name "$SERVICE")"
echo "$SERVICE_NAME" | tr ._ -
}
service_alternative_alias() {
local EXISTING_CONFIG="$1"
declare desc="Retrieves an alternative alias for a service"
declare EXISTING_CONFIG="$1"
local COLORS=(AQUA BLACK BLUE FUCHSIA GRAY GREEN LIME MAROON NAVY OLIVE PURPLE RED SILVER TEAL WHITE YELLOW)
local ALIAS;
@@ -101,7 +111,8 @@ service_alternative_alias() {
}
service_exposed_ports() {
local SERVICE="$1"
declare desc="Lists exposed ports for a service"
declare SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local PORT_FILE="$SERVICE_ROOT/PORT"
[[ ! -f $PORT_FILE ]] && echo '-' && return 0
@@ -112,7 +123,8 @@ service_exposed_ports() {
}
service_info() {
local SERVICE="$1" INFO_FLAG="$2"
declare desc="Retrieves information about a given service"
declare SERVICE="$1" INFO_FLAG="$2"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local SERVICE_URL=$(service_url "$SERVICE")
local PORT_FILE="$SERVICE_ROOT/PORT"
@@ -149,8 +161,8 @@ service_info() {
}
service_link() {
local APP="$2"
local SERVICE="$1"
declare desc="Links a service to an application"
declare SERVICE="$1" APP="$2"
update_plugin_scheme_for_app "$APP"
local SERVICE_URL=$(service_url "$SERVICE")
local SERVICE_NAME="$(get_service_name "$SERVICE")"
@@ -183,7 +195,8 @@ service_link() {
}
service_linked_apps() {
local SERVICE="$1"
declare desc="Lists all applications linked to a service"
declare SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local LINKS_FILE="$SERVICE_ROOT/LINKS"
@@ -193,6 +206,7 @@ service_linked_apps() {
}
service_list() {
declare desc="Lists all services and their status"
local SERVICES=$(ls "$PLUGIN_DATA_ROOT" 2> /dev/null)
if [[ -z $SERVICES ]]; then
dokku_log_warn "There are no $PLUGIN_SERVICE services"
@@ -206,7 +220,8 @@ service_list() {
}
service_logs() {
local SERVICE="$1"
declare desc="Displays logs for a service"
declare SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local ID=$(cat "$SERVICE_ROOT/ID")
@@ -221,17 +236,19 @@ service_logs() {
}
service_set_alias() {
local SERVICE="$1"
declare desc="Sets the alias in use for a service"
declare SERVICE="$1" ALIAS="$2"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local ALIAS_FILE="$SERVICE_ROOT/ALIAS"
mkdir -p "$SERVICE_ROOT" || dokku_log_fail "Unable to create service directory"
touch "$ALIAS_FILE"
echo "$2" > "$ALIAS_FILE"
echo "$ALIAS" > "$ALIAS_FILE"
}
service_status() {
local SERVICE="$1"
declare desc="Displays the status of a service"
declare SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local ID="$(cat "$SERVICE_ROOT/ID")"
@@ -244,16 +261,18 @@ service_status() {
}
service_port_expose() {
service_start "$1" "true"
service_port_unpause "$1" "true" "${@:2}"
declare desc="Wrapper for exposing service ports"
declare SERVICE="$1"
service_start "$SERVICE" "true"
service_port_unpause "$SERVICE" "true" "${@:2}"
}
service_port_pause() {
local SERVICE="$1"
declare desc="Pauses service exposure"
declare SERVICE="$1" LOG_FAIL="$2"
local SERVICE_ROOT="$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"
@@ -269,7 +288,8 @@ service_port_pause() {
}
service_port_unexpose() {
local SERVICE="$1"
declare desc="Wrapper for pausing exposed service ports"
declare SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local PORT_FILE="$SERVICE_ROOT/PORT"
service_port_pause "$SERVICE" "true"
@@ -277,12 +297,12 @@ service_port_unexpose() {
}
service_port_unpause() {
local SERVICE="$1"
declare desc="Starts service exposure"
declare SERVICE="$1" LOG_FAIL="$2"
local SERVICE_ROOT="$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="$2"
# shellcheck disable=SC2068
local PORTS=(${@:3})
# shellcheck disable=SC2068
@@ -308,8 +328,8 @@ service_port_unpause() {
}
service_promote() {
local SERVICE="$1"
local APP="$2"
declare desc="Promotes a secondary service to the primary env var"
declare SERVICE="$1" APP="$2"
local PLUGIN_DEFAULT_CONFIG_VAR="${PLUGIN_DEFAULT_ALIAS}_URL"
local EXISTING_CONFIG=$(config_all "$APP")
update_plugin_scheme_for_app "$APP"
@@ -336,7 +356,8 @@ service_promote() {
}
service_stop() {
local SERVICE="$1"
declare desc="Stops a running service"
declare SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE";
local SERVICE_NAME="$(get_service_name "$SERVICE")"
local ID=$(docker ps -f status=running | grep -e "$SERVICE_NAME$" | awk '{print $1}') || true
@@ -353,8 +374,8 @@ service_stop() {
}
service_unlink() {
local APP="$2"
local SERVICE="$1"
declare desc="Unlinks an application from a service"
declare SERVICE="$1" APP="$2"
update_plugin_scheme_for_app "$APP"
local SERVICE_URL=$(service_url "$SERVICE")
local SERVICE_NAME="$(get_service_name "$SERVICE")"
@@ -376,7 +397,8 @@ service_unlink() {
}
service_version() {
local SERVICE="$1"
declare desc="Displays the running version for an image"
declare SERVICE="$1"
local SERVICE_NAME="$(get_service_name "$SERVICE")"
docker inspect -f '{{.Config.Image}}' "$SERVICE_NAME"
}