New: smfc docker support added

Docker.md

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+# smfc in docker
+This file explains how `smfc` image can be executed in docker environment.
+
+Visit the [GitHub repository](https://github.com/petersulyok/smfc) of `smfc` for more details or reporting issues.
+
+# Usage 
+
+## docker CLI
+```
+$ docker run \
+    -d \
+    --rm \
+    --log-driver=journald \
+    --privileged=true \
+    --name "smfc" \
+    -v /dev:/dev:ro \
+    -v /run:/run:ro \
+    -v /opt/smfc/smfc.conf:/opt/smfc/smfc.conf:ro \
+    -e SMFC_ARGS="-l 3" \
+    petersulyok/smfc
+```
+(see this example in `docker/docker-start.sh`)
+
+## docker-compose
+```
+version: "2"
+services:
+  smfc:
+    image: petersulyok/smfc
+    container_name: smfc
+    network_mode: none
+    logging:
+        driver: journald
+    privileged: true
+    environment:
+      - SMFC_ARGS=-l 3
+    volumes:
+      - /dev:/dev:ro
+      - /run:/run:ro
+      - /opt/smfc/smfc.conf:/opt/smfc/smfc.conf:ro
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    restart: unless-stopped
+```
+(see this example in `docker/docker-compose.yaml`)
+
+## Parameters
+Use the following parameters to configure `smfc`:
+
+| Parameter   | type                 | function                                             |
+|-------------|----------------------|------------------------------------------------------|
+| `SMFC_ARGS` | environment variable | command-line arguments for `smfc` (-o, -l)           |
+| `smfc.conf` | volume               | configuration file for `smfc`, mapped from host side |
+
+Please also note:
+1. this image should be executed in `privileged` mode with access of `/dev` and `/run` folders
+because of the tools (i.e. `ipmitool`, `smartctl` and `hddtemp`)
+2. `smfc` log messages are forwarded to the host's `journald` daemon. Feel free to use a different [log driver](https://docs.docker.com/config/containers/logging/configure/) for docker.
+

Dockerfile

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+FROM alpine:3.18
+
+LABEL org.opencontainers.image.title="smfc"
+LABEL org.opencontainers.image.authors="petersulyok"
+LABEL org.opencontainers.image.desciption="Super Micro fan control for linux servers."
+LABEL org.opencontainers.image.url="https://github.com/petersulyok/smfc"
+
+RUN <<EOT
+    set -xe
+    apk add --no-cache ipmitool python3 smartmontools
+    apk add --no-cache --virtual .depends git build-base linux-headers automake autoconf gettext-dev
+    mkdir /tmp/build/
+    cd /tmp/build/
+    wget -O hddtemp.db.1 http://download.savannah.nongnu.org/releases/hddtemp/hddtemp.db
+    wget -O hddtemp.db.2 https://gitweb.gentoo.org/repo/gentoo.git/plain/app-admin/hddtemp/files/hddgentoo.db
+    cat hddtemp.db.1 hddtemp.db.2 > /usr/share/misc/hddtemp.db
+    wget "https://savannah.gnu.org/cgi-bin/viewcvs/*checkout*/config/config/config.guess"
+    wget "https://savannah.gnu.org/cgi-bin/viewcvs/*checkout*/config/config/config.sub"
+    git clone https://github.com/vitlav/hddtemp.git
+    cd hddtemp/
+    autoreconf -vif
+    ./configure --prefix=/usr --disable-nls
+    make
+    make install
+    cd /
+    rm -r /usr/share/man
+    rm -r /tmp/build
+    apk del .depends
+EOT
+
+WORKDIR /opt/smfc
+ADD --chmod=755 src/smfc.py smfc.py
+
+CMD /opt/smfc/smfc.py -c /opt/smfc/smfc.conf $SMFC_ARGS

docker/docker-build.sh

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+#!/bin/bash
+
+version="3.3.0"
+
+docker build . -t petersulyok/smfc:$version -t petersulyok/smfc:latest --label "org.opencontainers.image.version=$version" -f Dockerfile

docker/docker-compose.yaml

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+version: "2"
+services:
+  smfc:
+    image: petersulyok/smfc
+    container_name: smfc
+    network_mode: none
+    logging:
+        driver: journald
+    privileged: true
+    environment:
+      - SMFC_ARGS=-l 3
+    volumes:
+      - /dev:/dev:ro
+      - /run:/run:ro
+      - /opt/smfc/smfc.conf:/opt/smfc/smfc.conf:ro
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    restart: unless-stopped

docker/docker-start.sh

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+#!/bin/bash
+#
+#   docker_start.sh (C) 2023, Peter Sulyok
+#   This script will start `smfc` image in docker.
+#
+
+docker run \
+    -d \
+    --rm \
+    --log-driver=journald \
+    --privileged=true \
+    --name "smfc" \
+    -v /dev:/dev:ro \
+    -v /run:/run:ro \
+    -v /etc/timezone:/etc/timezone:ro \
+    -v /etc/localtime:/etc/localtime:ro \
+    -v /opt/smfc/smfc.conf:/opt/smfc/smfc.conf:ro \
+    -e SMFC_ARGS="-l 3" \
+    petersulyok/smfc