fix: add rootless wip

Dockerfile

@@ -1,8 +1,14 @@
-FROM alpine:latest
+FROM alpine:3.12
+
+RUN addgroup -S -g 1000 sysloggroup && adduser -S -u 1000 -G sysloggroup sysloguser
 
 RUN apk update && apk add --no-cache syslog-ng
 
 EXPOSE 514/tcp 514/udp
 
 COPY syslog-ng.conf /etc/
+
+RUN mkdir -p /run && chown sysloguser:sysloggroup /run && chmod 755 /run
+USER sysloguser
+
 CMD ["/usr/sbin/syslog-ng", "-F", "-f", "/etc/syslog-ng.conf"]

README.md

@@ -1,5 +1,7 @@
 # kube-syslog-sidecar
 
+Fork of [Crisu1710/kube-syslog-sidecar](https://github.com/Crisu1710/kube-syslog-sidecar) to provide rootless.
+
 Fork of [whereisaaron/docker-syslog-ng-sidecar](https://github.com/whereisaaron/kube-syslog-sidecar) to provide automated builds and minor tweaks.
 
 Dockerfile for syslog-ng to run in a sidecar container logging to stdout. The purpose of this