init

Dockerfile

+FROM debian:bullseye as frp
+
+WORKDIR /usr/src/app
+ADD https://github.com/fatedier/frp/releases/download/v0.37.1/frp_0.37.1_linux_amd64.tar.gz ./
+RUN tar xf frp_0.37.1_linux_amd64.tar.gz
+
+FROM debian:bullseye
+RUN apt update && apt install -y \
+  supervisor \
+  && rm -rf /var/lib/apt/lists/*
+COPY --from=frp /usr/src/app/frp_0.37.1_linux_amd64/ /opt/frp
+

supervisord.conf

+[supervisord]
+nodaemon=true
+
+[program:sshd]
+command=/usr/sbin/sshd -D
+
+[program:pythonapp]
+command=/path/to/python myapp.py -x args etc etc
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