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@@ -30,12 +30,19 @@
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-export([sorted_reboot_apps/1, reboot_apps/0]).
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-endif.
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-%% these apps are always (re)started by emqx_machine
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+%% These apps are always (re)started by emqx_machine:
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-define(BASIC_REBOOT_APPS, [gproc, esockd, ranch, cowboy, emqx]).
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-%% If any of these applications crash, the entire EMQX node shuts down
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+%% If any of these applications crash, the entire EMQX node shuts down:
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-define(BASIC_PERMANENT_APPS, [mria, ekka, esockd, emqx]).
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+%% These apps should NOT be (re)started automatically:
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+-define(EXCLUDED_APPS, [system_monitor, observer_cli, jq]).
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+
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+%% These apps are optional, they may or may not be present in the
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+%% release, depending on the build flags:
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+-define(OPTIONAL_APPS, [bcrypt, observer]).
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+
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post_boot() ->
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ok = ensure_apps_started(),
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ok = print_vsn(),
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@@ -148,9 +155,9 @@ basic_reboot_apps() ->
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?BASIC_REBOOT_APPS ++ (BusinessApps -- excluded_apps()).
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excluded_apps() ->
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- OptionalApps = [bcrypt, jq, observer],
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- [system_monitor, observer_cli] ++
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- [App || App <- OptionalApps, not is_app(App)].
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+ %% Optional apps _should_ be (re)started automatically, but only
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+ %% when they are found in the release:
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+ ?EXCLUDED_APPS ++ [App || App <- ?OPTIONAL_APPS, not is_app(App)].
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is_app(Name) ->
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case application:load(Name) of
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ieQu1