From 0d74bd05ff9d967e5d431d6707a6d8d19fb63f4d Mon Sep 17 00:00:00 2001
From: Dale Davies <dale@daledavies.co.uk>
Date: Wed, 1 Mar 2023 14:55:43 +0000
Subject: [PATCH] Issue #58: Add config option to disable IPv6 support in nginx

---
 README.md            |  1 +
 docker/entrypoint.sh | 23 +++++++++++++++++------
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index 183133f..1d231a0 100644
--- a/README.md
+++ b/README.md
@@ -76,6 +76,7 @@ You can use the following optional environment variables to configure/customise
 - `NOINDEX: 'true'` - Include a robots noindex meta tag in site header.
 - `CACHEBYPASS: 'true'` - Bypass all caches, useful for testing changes.
 - `WWWURL` - Useful if Jump is hosted in a sub-directory (e.g. "/startpage").
+- `DISABLEIPV6` - Disable IPV6 if required.
 
 **NOTE:** The `OWMAPIKEY` and `LATLONG` config options must be defined together.
 
diff --git a/docker/entrypoint.sh b/docker/entrypoint.sh
index aeed216..f28387c 100644
--- a/docker/entrypoint.sh
+++ b/docker/entrypoint.sh
@@ -68,16 +68,27 @@ if [ -z "${DEVELOPMENT-}" ]; then
         fi
     fi
 
-    echo >&2 "";
-    echo >&2 "- All done! Starting nginx/php services now."
-    echo >&2 "";
-    echo >&2 "-------------------------------------------------------------"
-    echo >&2 "";
-
 else
+    echo >&2 "";
     echo >&2 "- Setting correct ownership of xdebug dir"
     chown -R jumpapp:jumpapp /tmp/xdebug
 fi
 
+DISABLEIPV6=$(echo "${DISABLEIPV6:-}" | tr '[:upper:]' '[:lower:]')
+
+if [ "$DISABLEIPV6" == "true" ] || [ "$DISABLEIPV6" == "1" ]; then
+    echo >&2 "";
+    echo >&2 "- Disabling IPv6 in nginx config"
+    sed -E -i 's/^([^#]*)listen \[::\]/\1#listen [::]/g' /etc/nginx/nginx.conf
+else
+    sed -E -i 's/^(\s*)#listen \[::\]/\1listen [::]/g' /etc/nginx/nginx.conf
+fi
+
+echo >&2 "";
+echo >&2 "- All done! Starting nginx/php services now."
+echo >&2 "";
+echo >&2 "-------------------------------------------------------------"
+echo >&2 "";
+
 php-fpm8
 nginx -g 'daemon off;'