添加 mysql redis postgres 插件

plugins/postgres/subcommands/logs

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/config"
+set -eo pipefail
+[[ $DOKKU_TRACE ]] && set -x
+source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
+source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
+
+service-logs-cmd() {
+  #E you can tail logs for a particular service:
+  #E dokku $PLUGIN_COMMAND_PREFIX:logs lollipop
+  #E by default, logs will not be tailed, but you can do this with the --tail flag:
+  #E dokku $PLUGIN_COMMAND_PREFIX:logs lollipop --tail
+  #E the default tail setting is to show all logs, but an initial count can also be specified
+  #E dokku $PLUGIN_COMMAND_PREFIX:logs lollipop --tail 5
+  #A service, service to run command against
+  #F -t|--tail [<tail-num>], do not stop when end of the logs are reached and wait for additional output
+  declare desc="print the most recent log(s) for this service"
+  local cmd="$PLUGIN_COMMAND_PREFIX:logs" argv=("$@")
+  [[ ${argv[0]} == "$cmd" ]] && shift 1
+  declare SERVICE="$1" TAIL_FLAG="$2" TAIL_NUM_OPTIONAL="${3:-all}"
+
+  [[ -z "$SERVICE" ]] && dokku_log_fail "Please specify a valid name for the service"
+  verify_service_name "$SERVICE"
+  service_logs "$SERVICE" "$TAIL_FLAG" "$TAIL_NUM_OPTIONAL"
+}
+
+service-logs-cmd "$@"