CapRover serving static files from host - nginx

Question

I want to serve static files located on the host server using CapRover.
What I did:
Created directory structure /srv/foo/bar.
Ensured bar permission is drw-rw-r-- and all files inside it are -rw-r--r--.
Created new app in CapRover dashboard called app.
Modified its Nginx config (scroll all the way down to see my changes):
<%
if (s.forceSsl) {
%>
server {
listen 80;
server_name <%-s.publicDomain%>;
# Used by Lets Encrypt
location /.well-known/acme-challenge/ {
root <%-s.staticWebRoot%>;
}
# Used by CapRover for health check
location /.well-known/captain-identifier {
root <%-s.staticWebRoot%>;
}
location / {
return 302 https://$http_host$request_uri;
}
}
<%
}
%>
server {
<%
if (!s.forceSsl) {
%>
listen 80;
<%
}
if (s.hasSsl) {
%>
listen 443 ssl http2;
ssl_certificate <%-s.crtPath%>;
ssl_certificate_key <%-s.keyPath%>;
<%
}
%>
client_max_body_size 500m;
server_name <%-s.publicDomain%>;
# 127.0.0.11 is DNS set up by Docker, see:
# https://docs.docker.com/engine/userguide/networking/configure-dns/
# https://github.com/moby/moby/issues/20026
resolver 127.0.0.11 valid=10s;
# IMPORTANT!! If you are here from an old thread to set a custom port, you do not need to modify this port manually here!!
# Simply change the Container HTTP Port from the dashboard HTTP panel
set $upstream http://<%-s.localDomain%>:<%-s.containerHttpPort%>;
# THIS IS WHAT I CHANGED
location / {
root /srv/foo/bar;
}
# Used by Lets Encrypt
location /.well-known/acme-challenge/ {
root <%-s.staticWebRoot%>;
}
# Used by CapRover for health check
location /.well-known/captain-identifier {
root <%-s.staticWebRoot%>;
}
error_page 502 /captain_502_custom_error_page.html;
location = /captain_502_custom_error_page.html {
root <%-s.customErrorPagesDirectory%>;
internal;
}
}
I even set persistent directory mapping for the app, /srv/foo to /srv/foo.
But when I open https://app.caprover.mydomain.com/test.jpg from a browser:
404 Not Found
nginx
So I checked Nginx log (docker service logs captain-nginx --follow):
... *4773 open() "/srv/foo/bar/test.jpg" failed (2: No such file or directory), client: 1.2.3.4, server: app.caprover.mydomain.com, request: "GET /test.jpg HTTP/1.1", host: "app.caprover.mydomain.com"
... "app.caprover.mydomain.com" "GET /test.jpg HTTP/1.1" 404 548 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64)" "-"
What do I miss?

Answer 1

Nginx is looking inside the container for the path to /srv/foo/bar
I you have created the directory outside of the caprover nginx container, then it has to be mapped into the container to enable nginx to access it.