From 3a9ec7924d1a325ce04cce4ddf6c13545f1139cb Mon Sep 17 00:00:00 2001
From: Rob Kooper <kooper@illinois.edu>
Date: Tue, 9 Oct 2018 13:24:27 -0500
Subject: [PATCH 1/3] create duplicate of environment variable

This fixes issue #600.
---
 app/helpers/application_helper.rb | 2 +-
 hooks/build                       | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 8a5fdc5f2..8ce9328d1 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -127,7 +127,7 @@ def commit_is_tagged?
 end
 
 def commit_tags
-  e = ENV['BETY_GIT_TAGS']
+  e = ENV['BETY_GIT_TAGS'].dup
   ref_names = e.nil? || e.empty? ? `git log --pretty=format:"%d" -1` : e
   if /tag/.match(ref_names).nil?
     return ""
diff --git a/hooks/build b/hooks/build
index 0541e4a9d..a4c36df95 100755
--- a/hooks/build
+++ b/hooks/build
@@ -1,5 +1,9 @@
 #!/usr/bin/env sh
 
+# so we can run script outside of docker hub
+IMAGE_NAME=${IMAGE_NAME:-"pecan/bety:latest"}
+
+# build the actual container
 docker build \
     --build-arg BETY_GIT_TAGS="$(git log --pretty=format:%d -1)" \
     --build-arg BETY_GIT_BRANCH="$(git rev-parse --abbrev-ref HEAD)" \

From da6c456287f8c808300108badf96682b91208a51 Mon Sep 17 00:00:00 2001
From: Rob Kooper <kooper@illinois.edu>
Date: Tue, 9 Oct 2018 13:30:50 -0500
Subject: [PATCH 2/3] make sure variable is not nil

---
 app/helpers/application_helper.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 8ce9328d1..6b5b7ed90 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -127,8 +127,8 @@ def commit_is_tagged?
 end
 
 def commit_tags
-  e = ENV['BETY_GIT_TAGS'].dup
-  ref_names = e.nil? || e.empty? ? `git log --pretty=format:"%d" -1` : e
+  e = ENV['BETY_GIT_TAGS']
+  ref_names = e.nil? || e.empty? ? `git log --pretty=format:"%d" -1` : e.dup
   if /tag/.match(ref_names).nil?
     return ""
   end

From 854b06149f0c1a1568b1525c9998bdcdcb139857 Mon Sep 17 00:00:00 2001
From: Rob Kooper <kooper@illinois.edu>
Date: Thu, 11 Oct 2018 15:01:17 -0500
Subject: [PATCH 3/3] update CHANGELOG

---
 CHANGELOG.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index b5c40a653..0f242cda6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,12 @@ section for the next release.
 For more information about this file see also [Keep a Changelog](http://keepachangelog.com/) .
 
 
+## [5.0.4] - 2018-10-11
+
+### Fixes
+
+- #600 : Error when starting BETY as docker container due to frozen variable.
+
 ## [5.0.3] - 2018-09-28
 
 ### Fixes