add docker cache workflow

ci/docker-cache/Dockerfile

@@ -0,0 +1,19 @@
+FROM node:18 as builder
+
+COPY package.json yarn.lock ./
+
+RUN yarn install --immutable
+
+COPY . .
+
+RUN yarn build
+
+FROM nginx:alpine
+
+COPY ci/docker-cache/nginx.conf /etc/nginx/nginx.conf
+RUN rm -rf /usr/share/nginx/html/*
+COPY --from=builder /dist /usr/share/nginx/html
+
+EXPOSE ${EXPOSE} 80
+
+ENTRYPOINT ["nginx", "-g", "daemon off;"]

ci/runner-cache/Dockerfile

@@ -1,6 +1,6 @@
 FROM nginx:alpine
 
-COPY ci/nginx.conf /etc/nginx/nginx.conf
+COPY ci/runner-cache/nginx.conf /etc/nginx/nginx.conf
 RUN rm -rf /usr/share/nginx/html/*
 COPY /dist /usr/share/nginx/html
 

ci/runner-cache/nginx.conf

@@ -0,0 +1,46 @@
+worker_processes 4;
+
+events { worker_connections 1024; }
+
+http {
+    server {
+        listen 80;
+        root  /usr/share/nginx/html;
+        include /etc/nginx/mime.types;
+
+        gzip            on;
+        gzip_min_length 1000;
+        gzip_proxied    expired no-cache no-store private auth;
+        gzip_types      text/plain application/xml application/javascript;
+
+        ## All static files will be served directly.
+        location ~* ^.+\.(?:css|cur|js|jpe?g|gif|htc|ico|png|xml|otf|ttf|eot|woff|woff2|svg)$ {
+                access_log off;
+                expires 30d;
+                add_header Cache-Control public;
+                gzip_static on;
+
+                ## No need to bleed constant updates. Send the all shebang in one
+                ## fell swoop.
+                tcp_nodelay off;
+
+                ## Set the OS file cache.
+                open_file_cache max=3000 inactive=120s;
+                open_file_cache_valid 45s;
+                open_file_cache_min_uses 2;
+                open_file_cache_errors off;
+        }
+
+        location / {
+                gzip_static on;
+                try_files $uri @index;
+        }
+
+        location @index {
+                add_header Cache-Control "no-store, no-cache, must-revalidate";
+                expires -1;
+                try_files /index.html =404;
+        }
+    }
+}
+