Override entrypoint to run mailer

Dockerfile

@@ -7,3 +7,7 @@ RUN /venv/bin/pip install git+https://github.com/alerta/alerta-contrib.git#subdi
 RUN /venv/bin/pip install dnspython==1.16.0
 
 COPY . ${WORKDIR}
+
+COPY sbin/* /sbin/
+
+ENTRYPOINT ["/sbin/entrypoint.sh"]

sbin/entrypoint.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+set -eu -o pipefail
+
+run_alerta_mailer() {
+  set -eu
+
+  alerta-mailer &
+
+  echo "-----> alerta-mailer is running..."
+}
+
+run_ps_background_check() {
+  set -eu
+
+  ps -aux | grep -i mailer
+
+  echo "-----> ps grep output ^^^"
+}
+
+# Main entrypoint
+main() {
+  set -eu
+
+  run_alerta_mailer
+  run_ps_background_check
+}
+
+main
+
+
+usr/local/bin/docker-entrypoint.sh "$@"