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| author | Luis Rascao <[email protected]> | 2017-05-14 02:15:05 +0100 |
|---|---|---|
| committer | Luis Rascao <[email protected]> | 2017-05-15 17:27:56 +0100 |
| commit | 82f6c94a4d8ef1cf2be0becc5816d0646e5a50cc (patch) | |
| tree | 0859e7e9a796f69dd26ebc015c8c7b0ca9d5f199 /src | |
| parent | c1fa56db1ec4cc4aa6975f4efee0c189452a251d (diff) | |
| download | relx-82f6c94a4d8ef1cf2be0becc5816d0646e5a50cc.tar.gz relx-82f6c94a4d8ef1cf2be0becc5816d0646e5a50cc.tar.bz2 relx-82f6c94a4d8ef1cf2be0becc5816d0646e5a50cc.zip | |
Add custom status hook to extended script
Provide a status command to start script which,
by default, runs a builtin hook that simply prints
which applications are running in the node.
This hook can then be customized to print whatever
the user wants by adding
{status, [{custom, "path/to/hook"}]}
to already existing extended_start_script_hooks.
Diffstat (limited to 'src')
| -rw-r--r-- | src/rlx_prv_assembler.erl | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/src/rlx_prv_assembler.erl b/src/rlx_prv_assembler.erl index f40a0c2..278756d 100644 --- a/src/rlx_prv_assembler.erl +++ b/src/rlx_prv_assembler.erl @@ -398,7 +398,8 @@ write_bin_file(State, Release, OutputDir, RelDir) -> include_nodetool(BinDir), Hooks = expand_hooks(BinDir, rlx_state:get(State, - extended_start_script_hooks, []), + extended_start_script_hooks, + [{status, [builtin_status]}]), State), extended_bin_file_contents(OsFamily, RelName, RelVsn, rlx_release:erts(Release), ErlOpts, @@ -475,6 +476,8 @@ validate_hook(post_start, wait_for_vm_start) -> true; validate_hook(post_start, {wait_for_process, _}) -> true; %% custom hooks are allowed in all phases validate_hook(_Phase, {custom, _}) -> true; +%% as well as status hooks +validate_hook(status, _) -> true; %% deny all others validate_hook(_, _) -> false. @@ -482,7 +485,8 @@ hook_filename({custom, CustomScript}) -> CustomScript; hook_filename(pid) -> "hooks/builtin/pid"; hook_filename({pid, _}) -> "hooks/builtin/pid"; hook_filename(wait_for_vm_start) -> "hooks/builtin/wait_for_vm_start"; -hook_filename({wait_for_process, _}) -> "hooks/builtin/wait_for_process". +hook_filename({wait_for_process, _}) -> "hooks/builtin/wait_for_process"; +hook_filename(builtin_status) -> "hooks/builtin/status". hook_invocation({custom, CustomScript}) -> CustomScript; %% the pid builtin hook with no arguments writes to pid file @@ -496,13 +500,15 @@ hook_invocation({wait_for_process, Name}) -> %% wait_for_process takes an atom as argument %% which is the process name to wait for string:join(["hooks/builtin/wait_for_process", - atom_to_list(Name)], "|"). + atom_to_list(Name)], "|"); +hook_invocation(builtin_status) -> "hooks/builtin/status". hook_template({custom, _}) -> custom; hook_template(pid) -> builtin_hook_pid; hook_template({pid, _}) -> builtin_hook_pid; hook_template(wait_for_vm_start) -> builtin_hook_wait_for_vm_start; -hook_template({wait_for_process, _}) -> builtin_hook_wait_for_process. +hook_template({wait_for_process, _}) -> builtin_hook_wait_for_process; +hook_template(builtin_status) -> builtin_hook_status. %% custom hooks are not rendered, they should %% be copied by the release overlays @@ -795,6 +801,7 @@ extended_bin_file_contents(OsFamily, RelName, RelVsn, ErtsVsn, ErlOpts, Hooks) - Hooks, []), " "), PostInstallUpgradeHooks = string:join(proplists:get_value(post_install_upgrade, Hooks, []), " "), + StatusHook = string:join(proplists:get_value(status, Hooks, []), " "), render(Template, [{rel_name, RelName}, {rel_vsn, RelVsn}, {erts_vsn, ErtsVsn}, {erl_opts, ErlOpts}, {pre_start_hooks, PreStartHooks}, @@ -802,7 +809,8 @@ extended_bin_file_contents(OsFamily, RelName, RelVsn, ErtsVsn, ErlOpts, Hooks) - {pre_stop_hooks, PreStopHooks}, {post_stop_hooks, PostStopHooks}, {pre_install_upgrade_hooks, PreInstallUpgradeHooks}, - {post_install_upgrade_hooks, PostInstallUpgradeHooks}]). + {post_install_upgrade_hooks, PostInstallUpgradeHooks}, + {status_hook, StatusHook}]). erl_ini(OutputDir, ErtsVsn) -> ErtsDirName = string:concat("erts-", ErtsVsn), |