From cff8dce026edfa86d0c96aebfbb8af53fee238a6 Mon Sep 17 00:00:00 2001
From: Lukas Larsson <lukas@erlang.org>
Date: Fri, 16 Feb 2018 09:55:08 +0100
Subject: erts: Ignore SIGTERM in erl_child_setup

---
 erts/emulator/sys/unix/erl_child_setup.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/erts/emulator/sys/unix/erl_child_setup.c b/erts/emulator/sys/unix/erl_child_setup.c
index 69fc6c2879..57973b10d7 100644
--- a/erts/emulator/sys/unix/erl_child_setup.c
+++ b/erts/emulator/sys/unix/erl_child_setup.c
@@ -437,6 +437,21 @@ main(int argc, char *argv[])
         exit(1);
     }
 
+    /* Ignore SIGTERM.
+       Some container environments send SIGTERM to all processes
+       when terminating. We don't want erl_child_setup to terminate
+       in these cases as that will prevent beam from properly
+       cleaning up.
+    */
+    sa.sa_handler = SIG_IGN;
+    sigemptyset(&sa.sa_mask);
+    sa.sa_flags = 0;
+
+    if (sigaction(SIGTERM, &sa, 0) == -1) {
+        perror(NULL);
+        exit(1);
+    }
+
     forker_hash_init();
 
     SET_CLOEXEC(uds_fd);
-- 
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