From a0206d9626323ed4ef57bd4ecc072e3f96aa043a Mon Sep 17 00:00:00 2001
From: Maik Catrinque <maik.wandercatrinqueandrade@windriver.com>
Date: Fri, 14 Jan 2022 15:07:40 -0300
Subject: [PATCH] Add force_boot command to rabbit start template

Currently, if a multi-node cluster is shut down unexpectedly,
RabbitMQ is not able to boot and sync with the other nodes.

The purpose of this change is to add the possibility to use the
rabbitmqctl force_boot command to recover RabbitMQ cluster from
an unexpected shut down.

Test plan:
PASS: Shutdown and start a multi-node RabbitMQ cluster

Regression:
PASS: OpenStack can be applied successfully
PASS: RabbitMQ nodes can join the RabbitMQ cluster

Story: 2009784
Task: 44290

Ref:
[0] https://www.rabbitmq.com/rabbitmqctl.8.html#force_boot

Signed-off-by: Maik Catrinque <maik.wandercatrinqueandrade@windriver.com>
Co-authored-by: Andrew Martins Carletti <Andrew.MartinsCarletti@windriver.com>
Change-Id: I56e966ea64e8881ba436213f0c9e1cbe547098e3
---
 rabbitmq/Chart.yaml                           | 2 +-
 rabbitmq/templates/bin/_rabbitmq-start.sh.tpl | 3 +++
 rabbitmq/values.yaml                          | 6 ++++++
 releasenotes/notes/rabbitmq.yaml              | 1 +
 4 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/rabbitmq/Chart.yaml b/rabbitmq/Chart.yaml
index 36cd0e443e..a2261232f3 100644
--- a/rabbitmq/Chart.yaml
+++ b/rabbitmq/Chart.yaml
@@ -15,6 +15,6 @@ apiVersion: v1
 appVersion: v3.7.26
 description: OpenStack-Helm RabbitMQ
 name: rabbitmq
-version: 0.1.15
+version: 0.1.16
 home: https://github.com/rabbitmq/rabbitmq-server
 ...
diff --git a/rabbitmq/templates/bin/_rabbitmq-start.sh.tpl b/rabbitmq/templates/bin/_rabbitmq-start.sh.tpl
index 794f091998..4ef849fd10 100644
--- a/rabbitmq/templates/bin/_rabbitmq-start.sh.tpl
+++ b/rabbitmq/templates/bin/_rabbitmq-start.sh.tpl
@@ -94,4 +94,7 @@ if ! [ "${POD_INCREMENT}" -eq "0" ] && ! [ -d "/var/lib/rabbitmq/mnesia" ] ; the
   rm -fv /tmp/rabbit-disable-readiness /tmp/rabbit-disable-liveness-probe
 fi
 
+{{- if .Values.forceBoot.enabled }}
+if [ "${POD_INCREMENT}" -eq "0" ] && [ -d "/var/lib/rabbitmq/mnesia/${RABBITMQ_NODENAME}" ]; then rabbitmqctl force_boot; fi
+{{- end}}
 exec rabbitmq-server
diff --git a/rabbitmq/values.yaml b/rabbitmq/values.yaml
index c593966f53..8eb51c6490 100644
--- a/rabbitmq/values.yaml
+++ b/rabbitmq/values.yaml
@@ -46,6 +46,12 @@ images:
       - dep_check
       - image_repo_sync
 
+# forceBoot: executes 'rabbitmqctl force_boot' to force boot on
+# cluster shut down unexpectedly in an unknown order.
+# ref: https://www.rabbitmq.com/rabbitmqctl.8.html#force_boot
+forceBoot:
+  enabled: false
+
 pod:
   probes:
     prometheus_rabbitmq_exporter:
diff --git a/releasenotes/notes/rabbitmq.yaml b/releasenotes/notes/rabbitmq.yaml
index 4ec33690a2..bce748d170 100644
--- a/releasenotes/notes/rabbitmq.yaml
+++ b/releasenotes/notes/rabbitmq.yaml
@@ -15,4 +15,5 @@ rabbitmq:
   - 0.1.13 Add prestop action and version 3.8.x upgrade prep
   - 0.1.14 Update readiness and liveness probes
   - 0.1.15 Update htk requirements
+  - 0.1.16 Add force_boot command to rabbit start template
 ...