From 47ddd834c7c0e633665a5718626d3d481e8e4b82 Mon Sep 17 00:00:00 2001
From: Aaron Louie <ajlouie@gmail.com>
Date: Tue, 26 May 2020 09:02:37 -0400
Subject: [PATCH] Starts nginx inside the bash script

---
 Dockerfile                         |  5 +----
 docker/substitute-env-variables.sh | 13 ++++++++++---
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 85f88fd..645a8ac 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -26,12 +26,9 @@ RUN chmod +x ./entrypoint.sh
 
 # The entrypoint.sh script will run after the container finishes starting.
 # Substitutes environment variables in nginx configuration and index.html,
-# then reloads nginx.
+# then starts/reloads nginx.
 ENTRYPOINT ["./entrypoint.sh", \
             "/etc/nginx/html/index.html,/etc/nginx/conf.d/default.conf", \
             "PRODUCTION,API_URL,IRB_URL,HOME_ROUTE,BASE_HREF,PORT0", \
             "/etc/nginx/html", \
             "true"]
-
-### STAGE 3: Profit! ###
-CMD ["nginx", "-g", "daemon off;"]
diff --git a/docker/substitute-env-variables.sh b/docker/substitute-env-variables.sh
index 36e49a3..909b083 100755
--- a/docker/substitute-env-variables.sh
+++ b/docker/substitute-env-variables.sh
@@ -89,9 +89,16 @@ done
 if [ $num_args -ge 4 ] && [ "$4" == "true" ]; then
   # Check to see if nginx command is available
   if hash nginx 2> /dev/null; then
-    echo "Reloading nginx..."
-    exec nginx -s reload
-    echo "nginx reloaded."
+    # Check to see if nginx is already running
+    if [ -e /var/run/nginx.pid ]; then
+      echo "nginx is currently running. Reloading nginx..."
+      exec nginx -s reload
+      echo "nginx reloaded."
+    else
+      echo "nginx is not yet running. Starting nginx..."
+      exec nginx -g 'daemon off;'
+      echo "nginx started."
+    fi
   else
     echo "nginx command not found on this system."
   fi