From bf570ca3b14ecb69ef248363f51365671a280e47 Mon Sep 17 00:00:00 2001
From: Justin Geibel <jtgeibel@gmail.com>
Date: Fri, 15 Nov 2019 13:05:22 -0500
Subject: [PATCH 1/4] Add a `USE_FASTBOOT=staging-experimental` mode

---
 config/nginx.conf.erb | 38 ++++++++++++++++++++++++++++----------
 script/start-web.sh   | 10 +++++-----
 2 files changed, 33 insertions(+), 15 deletions(-)

diff --git a/config/nginx.conf.erb b/config/nginx.conf.erb
index 1067911f9f4..3435fc6dc4a 100644
--- a/config/nginx.conf.erb
+++ b/config/nginx.conf.erb
@@ -107,7 +107,7 @@ http {
 
 	upstream app_server {
 		server localhost:8888 fail_timeout=0;
- 	}
+	}
 
 	server {
 		listen <%= ENV["PORT"] %>;
@@ -130,15 +130,33 @@ http {
 			rewrite ^ https://$host$request_uri? permanent;
 		}
 
-		location / {
-			proxy_pass http://app_server;
-		}
-
-		<% if ENV['USE_FASTBOOT'] %>
-		# Just in case, only forward "/policies" to Ember for a moment
-		location = /policies {
-			proxy_pass http://localhost:9000;
-		}
+		<% if ENV['USE_FASTBOOT'] == "staging-experimental" %>
+			# Experimentally send all non-backend requests to FastBoot
+
+			location /api/ {
+				proxy_pass http://app_server;
+			}
+
+			# FastBoot
+			location / {
+				proxy_pass http://localhost:9000;
+			}
+		<% elsif ['USE_FASTBOOT'] %>
+			# Fastboot is enabled only for allowed paths
+
+			location = /policies {
+				proxy_pass http://localhost:9000;
+			}
+
+			location / {
+				proxy_pass http://app_server;
+			}
+		<% else %>
+			# FastBoot is disabled, backend sends the static Ember index HTML for non-backend paths
+
+			location / {
+				proxy_pass http://app_server;
+			}
 		<% end %>
 
 		location ~ ^/api/v./crates/new$ {
diff --git a/script/start-web.sh b/script/start-web.sh
index 47317d0867c..dce52263cd1 100755
--- a/script/start-web.sh
+++ b/script/start-web.sh
@@ -1,12 +1,12 @@
 #! /bin/bash
 set -ue
 
-if [[ "${USE_FASTBOOT:-0}" = 1 ]]; then
-    export USE_FASTBOOT=1
+if [[ -z "${USE_FASTBOOT}" ]]; then
+    unset USE_FASTBOOT
+    bin/start-nginx ./target/release/server
+else
+    export USE_FASTBOOT
     node --optimize_for_size --max_old_space_size=200 fastboot.js &
     bin/start-nginx ./target/release/server &
     wait -n
-else
-    unset USE_FASTBOOT
-    bin/start-nginx ./target/release/server
 fi

From a423d44a647ce7dbf105b97d276a122ddc9344ad Mon Sep 17 00:00:00 2001
From: Justin Geibel <jtgeibel@gmail.com>
Date: Mon, 2 Dec 2019 22:00:37 -0500
Subject: [PATCH 2/4] Update `ember.sh` fastboot test to match production

This script is reference from `package.json` and devlopment should behave
the same as production.
---
 script/ember.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/script/ember.sh b/script/ember.sh
index b67e00cabdb..50c7c68e75a 100755
--- a/script/ember.sh
+++ b/script/ember.sh
@@ -3,7 +3,7 @@ set -ue
 
 export FASTBOOT_DISABLED
 
-if [ "${USE_FASTBOOT:-0}" = '1' ]; then
+if [ -z "${USE_FASTBOOT}" ]; then
     unset FASTBOOT_DISABLED
 else
     FASTBOOT_DISABLED=1

From 32a2295275936c497804021f4dddb9f7a0abb316 Mon Sep 17 00:00:00 2001
From: Justin Geibel <jtgeibel@gmail.com>
Date: Mon, 2 Dec 2019 22:23:03 -0500
Subject: [PATCH 3/4] Fix `USE_FASTBOOT: unbound variable` error when variable
 is not set

Explicitly default to an empty value, to work with `set -u`.
---
 script/ember.sh     | 2 +-
 script/start-web.sh | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/script/ember.sh b/script/ember.sh
index 50c7c68e75a..4029d3ef524 100755
--- a/script/ember.sh
+++ b/script/ember.sh
@@ -3,7 +3,7 @@ set -ue
 
 export FASTBOOT_DISABLED
 
-if [ -z "${USE_FASTBOOT}" ]; then
+if [ -z "${USE_FASTBOOT-}" ]; then
     unset FASTBOOT_DISABLED
 else
     FASTBOOT_DISABLED=1
diff --git a/script/start-web.sh b/script/start-web.sh
index dce52263cd1..bcf62b29efc 100755
--- a/script/start-web.sh
+++ b/script/start-web.sh
@@ -1,7 +1,7 @@
 #! /bin/bash
 set -ue
 
-if [[ -z "${USE_FASTBOOT}" ]]; then
+if [[ -z "${USE_FASTBOOT-}" ]]; then
     unset USE_FASTBOOT
     bin/start-nginx ./target/release/server
 else

From 8e02c1e81295f3a7badb65dcc47abcfbab053d11 Mon Sep 17 00:00:00 2001
From: Justin Geibel <jtgeibel@gmail.com>
Date: Thu, 5 Dec 2019 20:08:48 -0500
Subject: [PATCH 4/4] Fix logic inversion in `script/ember.sh`

---
 script/ember.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/script/ember.sh b/script/ember.sh
index 4029d3ef524..6a8a1a56f61 100755
--- a/script/ember.sh
+++ b/script/ember.sh
@@ -4,9 +4,9 @@ set -ue
 export FASTBOOT_DISABLED
 
 if [ -z "${USE_FASTBOOT-}" ]; then
-    unset FASTBOOT_DISABLED
-else
     FASTBOOT_DISABLED=1
+else
+    unset FASTBOOT_DISABLED
 fi
 
 ember "$@"