feat: parameterize SIGN_IN_URL

bodom0015 · bodom0015 · commit 4c143806e1de · 2025-05-01T12:12:06.000-05:00
diff --git a/.env b/.env
@@ -0,0 +1 @@
+SIGN_IN_URL='#'
diff --git a/401.html.template b/401.html.template
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>MMLI: Unauthorized</title>
+<script src="/env.js"></script>
+</head>
+<body>
+
+<p>Unauthorized</p>
+
+<a id='signInLink' href='#'>Sign In</a>
+
+<script>
+    var origin = window.location.href;
+    var rd = encodeURIComponent(origin);
+    var href = `${SIGN_IN_URL}?rd=` + rd;
+    document.getElementById('signInLink').href = href;
+    window.location.href = href;
+</script>
+
+</body>
+</html>
diff --git a/Dockerfile b/Dockerfile
@@ -1,3 +1,14 @@
-FROM nginxinc/nginx-unprivileged
+FROM nginx:1
 
-COPY . /usr/share/nginx/html/
+# Enable built-in interpolation of templates
+ENV NGINX_ENVSUBST_TEMPLATE_DIR=/usr/share/nginx/templates \
+    NGINX_ENVSUBST_OUTPUT_DIR=/usr/share/nginx/html
+
+# Define variables that will be interpolated
+ENV SIGN_IN_URL='#'
+
+# For templated HTML
+COPY *.template ${NGINX_ENVSUBST_TEMPLATE_DIR}/
+
+# For static HTML
+#COPY *.html ${NGINX_ENVSUBST_OUTPUT_DIR}/
diff --git a/docker-compose.yml b/docker-compose.yml
@@ -1,9 +1,9 @@
-version: '3.9'
-
 services:
   nginx-custom-errors:
     container_name: 'nginx-custom-errors'
     image: 'ndslabs/custom-errors'
+    env_file:
+    - .env
     build:
       context: .
     ports:
diff --git a/env.js.template b/env.js.template
@@ -0,0 +1,3 @@
+window.env = {
+  "SIGN_IN_URL": "${SIGN_IN_URL}"
+}
