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%% This Source Code Form is subject to the terms of the Mozilla Public
%% License, v. 2.0. If a copy of the MPL was not distributed with this
%% file, You can obtain one at https://mozilla.org/MPL/2.0/.
%%
%% Copyright (c) 2007-2020 VMware, Inc. or its affiliates. All rights reserved.
%%
-module(rabbit_prelaunch_logging).
-export([setup/1]).
setup(Context) ->
rabbit_log_prelaunch:debug(""),
rabbit_log_prelaunch:debug("== Logging =="),
ok = set_ERL_CRASH_DUMP_envvar(Context),
ok = configure_lager(Context).
set_ERL_CRASH_DUMP_envvar(#{log_base_dir := LogBaseDir}) ->
case os:getenv("ERL_CRASH_DUMP") of
false ->
ErlCrashDump = filename:join(LogBaseDir, "erl_crash.dump"),
rabbit_log_prelaunch:debug(
"Setting $ERL_CRASH_DUMP environment variable to \"~ts\"",
[ErlCrashDump]),
os:putenv("ERL_CRASH_DUMP", ErlCrashDump),
ok;
ErlCrashDump ->
rabbit_log_prelaunch:debug(
"$ERL_CRASH_DUMP environment variable already set to \"~ts\"",
[ErlCrashDump]),
ok
end.
configure_lager(#{log_base_dir := LogBaseDir,
main_log_file := MainLog,
upgrade_log_file := UpgradeLog} = Context) ->
{SaslErrorLogger,
MainLagerHandler,
UpgradeLagerHandler} = case MainLog of
"-" ->
%% Log to STDOUT.
rabbit_log_prelaunch:debug(
"Logging to stdout"),
{tty,
tty,
tty};
_ ->
rabbit_log_prelaunch:debug(
"Logging to:"),
[rabbit_log_prelaunch:debug(
" - ~ts", [Log])
|| Log <- [MainLog, UpgradeLog]],
%% Log to file.
{false,
MainLog,
UpgradeLog}
end,
ok = application:set_env(lager, crash_log, "log/crash.log"),
Fun = fun({App, Var, Value}) ->
case application:get_env(App, Var) of
undefined -> ok = application:set_env(App, Var, Value);
_ -> ok
end
end,
Vars = [{sasl, sasl_error_logger, SaslErrorLogger},
{rabbit, lager_log_root, LogBaseDir},
{rabbit, lager_default_file, MainLagerHandler},
{rabbit, lager_upgrade_file, UpgradeLagerHandler}],
lists:foreach(Fun, Vars),
ok = rabbit_lager:start_logger(),
ok = rabbit_prelaunch_early_logging:setup_early_logging(Context, false).
|
