Improve SPA cacheing

Dockerfile

@@ -13,8 +13,3 @@ FROM nginx as ki-frontend
 
 COPY --from=builder /dist/ /usr/share/nginx/html/
 COPY etc/nginx/conf.d/default.conf /etc/nginx/conf.d/default.conf
-
-LABEL org.opencontainers.image.source=https://git.wtf-eg.de/kompetenzinventar/ki-frontend.git
-LABEL org.opencontainers.image.url=https://git.wtf-eg.de/kompetenzinventar/ki-frontend
-LABEL org.opencontainers.image.documentation=https://git.wtf-eg.de/kompetenzinventar/ki-frontend#docker
-LABEL org.opencontainers.image.vendor="WTF Kooperative eG"

etc/nginx/conf.d/default.conf

@@ -9,10 +9,24 @@ server {
 
     #access_log  /var/log/nginx/host.access.log  main;
 
-    location / {
     root   /usr/share/nginx/html;
-        index  index.html index.htm;
+
-        try_files $uri $uri/ /index.html;
+    # routes without dots serve the index.html without caching
+    location / {
+        add_header Cache-Control "no-cache";
+        try_files $uri $uri/index.html /index.html;
+    }
+  
+    # static js and css files that get replaced instead of updated
+    location ~ \.(js|css) {
+        add_header Cache-Control "public, max-age=31536000, immutable";
+        try_files $uri =404;
+    }
+  
+    # cache other static files for 30 days
+    location ~ \.(?!html) {
+        add_header Cache-Control "public, max-age=2592000";
+        try_files $uri =404;
     }
 
     #error_page  404              /404.html;