"502 Bad Gateway" if I switch to the krun runtime

[user451421541757324]

I'm trying to get this simple setup to work with krun. It works fine with crun, but as soon as I switch runtime (setting /etc/containers/containers.conf), I get a 502 Bad Gateway error.

podman pull docker.io/nginxinc/nginx-unprivileged:mainline-alpine-slim
podman pull ghcr.io/silvenga/redlib:0
systemctl --user daemon-reload
systemctl --user start redlib
systemctl --user start nginx

The containers start up correctly but are effectively unusable. I've tried this on two different operating systems (Manjaro and Arch Linux).

demo.nework:

[Network]
Driver=bridge

redlib.container:

[Unit]
After=network-online.target demo.network
Wants=network-online.target

[Container]
ContainerName=redlib
Image=ghcr.io/silvenga/redlib:0
Network=demo.network

[Install]
WantedBy=default.target

nginx.container:

[Unit]
After=network-online.target redlib.service demo.network
Wants=network-online.target

[Container]
ContainerName=nginx
Image=docker.io/nginxinc/nginx-unprivileged:mainline-alpine-slim
Network=demo.network
PublishPort=8081:8081

Volume=%h/Contenitori/Nginx/proxy.conf:/etc/nginx/nginx.conf:ro,Z

[Install]
WantedBy=default.target

nginx.conf:

pid /tmp/nginx.pid;

events {
    worker_connections 2048;
    use epoll;
    multi_accept on;
}

http {
    proxy_temp_path /tmp/proxy_temp;
    client_body_temp_path /tmp/client_temp;
    fastcgi_temp_path /tmp/fastcgi_temp;
    uwsgi_temp_path /tmp/uwsgi_temp;
    scgi_temp_path /tmp/scgi_temp;

    server {
        listen 8081;
        server_name _;

        client_body_timeout 8s;
        client_header_timeout 8s;
        send_timeout 8s;

        location / {
            proxy_pass http://redlib:8080;
        }
    }
}

I tried a few other things, like switching between pasta and slirp4netns, but it still didn't work.

As I said, it must be krun's fault, because everything works fine without it.