Update docker deployment to rootless docker.

.docker/.conf/nginx/nginx.conf

@@ -1,5 +1,5 @@
 worker_processes 4;
-pid /run/nginx.pid;
+pid /tmp/nginx.pid;
 
 
 error_log /dev/stderr info;

.docker/.conf/supervisor/supervisord.conf

@@ -2,7 +2,7 @@
 nodaemon=true
 logfile=/dev/null
 logfile_maxbytes=0
-pidfile=/run/supervisord.pid
+pidfile=/tmp/supervisord.pid
 
 
 [program:nginx]

.docker/Dockerfile

@@ -4,12 +4,17 @@
 ##      Used by automation. Can be built manually for testing.
 ##
 ####
-FROM alpine:3.17
+FROM alpine:3.20
 RUN apk add nginx supervisor
 RUN mkdir -p /var/www
 RUN rm -rf /etc/nginx
 COPY dist /var/www/build
 COPY .conf/nginx /etc/nginx
 COPY .conf/supervisor/supervisord.conf /etc/supervisor/conf.d/supervisord.conf
+RUN chown -R nobody /var/www
+RUN chown -R nobody /etc/nginx
+RUN chown -R nobody /var/www/build
+RUN chown -R nobody /etc/supervisor/conf.d/
+USER nobodys
 CMD ["/usr/bin/supervisord", "-c", "/etc/supervisor/conf.d/supervisord.conf"]
 EXPOSE 80