From dd0dc1770e935a12c8b356c45e78835748569cb9 Mon Sep 17 00:00:00 2001
From: dinaharan <44108303+dinaharan@users.noreply.github.com>
Date: Thu, 16 Jun 2022 23:58:31 -0700
Subject: [PATCH] Update Dockerfile.rhel8 to fix the postgresql upgrade issue
 from v12.

I was trying to test postgresql upgrade to version 13 from version 12 using RHEL8 based image but it's not working.  I see the following env is missing in RHEL8 based postgresql 13 image

POSTGRESQL_PREV_VERSION=12

Here is the link to problematic Dockerfile.

https://github.com/sclorg/postgresql-container/blob/generated/13/Dockerfile.rhel8

The same works fine with RHEL7 and other images.
---
 13/Dockerfile.rhel8 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/13/Dockerfile.rhel8 b/13/Dockerfile.rhel8
index 38fc01dd..9355aa6d 100644
--- a/13/Dockerfile.rhel8
+++ b/13/Dockerfile.rhel8
@@ -11,6 +11,7 @@ FROM ubi8/s2i-core
 #                           PostgreSQL administrative account
 
 ENV POSTGRESQL_VERSION=13 \
+    POSTGRESQL_PREV_VERSION=12 \
     HOME=/var/lib/pgsql \
     PGUSER=postgres \
     APP_DATA=/opt/app-root