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feat: replace telegraf:latest base with own Dockerfile #4

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dresi merged 3 commits from feat/telegraf-snmp-unifi-own-dockerfile into main 2026-06-11 16:04:45 +02:00
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2 changed files with 56 additions and 1 deletions
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28
telegraf-snmp-unifi/Dockerfile
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@ -1,6 +1,27 @@
FROM telegraf:latest
FROM buildpack-deps:bookworm-curl
LABEL org.opencontainers.image.authors="dockerimage@dresi.wtf"
RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
iputils-ping snmp procps lm-sensors libcap2-bin && \
rm -rf /var/lib/apt/lists/*
RUN wget -q -O - https://repos.influxdata.com/influxdata-archive_compat.key | \
gpg --dearmor > /etc/apt/trusted.gpg.d/influxdata.gpg
ENV TELEGRAF_VERSION=1.39.0
RUN ARCH= && dpkgArch="$(dpkg --print-architecture)" && \
case "${dpkgArch##*-}" in \
amd64) ARCH='amd64';; \
arm64) ARCH='arm64';; \
*) echo "Unsupported architecture: ${dpkgArch}"; exit 1;; \
esac && \
wget --no-verbose https://dl.influxdata.com/telegraf/releases/telegraf_${TELEGRAF_VERSION}-1_${ARCH}.deb.asc && \
wget --no-verbose https://dl.influxdata.com/telegraf/releases/telegraf_${TELEGRAF_VERSION}-1_${ARCH}.deb && \
gpg --batch --verify telegraf_${TELEGRAF_VERSION}-1_${ARCH}.deb.asc telegraf_${TELEGRAF_VERSION}-1_${ARCH}.deb && \
dpkg -i telegraf_${TELEGRAF_VERSION}-1_${ARCH}.deb && \
rm -f telegraf_${TELEGRAF_VERSION}-1_${ARCH}.deb*
RUN cd /usr/share/snmp/mibs && \
wget -q https://raw.githubusercontent.com/net-snmp/net-snmp/master/mibs/SNMPv2-SMI.txt \
https://raw.githubusercontent.com/net-snmp/net-snmp/master/mibs/SNMPv2-TC.txt \
@ -16,3 +37,8 @@ RUN cd /usr/share/snmp/mibs && \
wget -q -O UBNT-UniFi-MIB \
https://raw.githubusercontent.com/librenms/librenms/master/mibs/ubnt/UBNT-UniFi-MIB && \
echo "mibs +ALL" >> /etc/snmp/snmp.conf
COPY entrypoint.sh /entrypoint.sh
RUN chmod +x /entrypoint.sh
ENTRYPOINT ["/entrypoint.sh"]
CMD ["telegraf"]

29
telegraf-snmp-unifi/entrypoint.sh Normal file
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#!/bin/bash
set -e
if [ "${1:0:1}" = '-' ]; then
set -- telegraf "$@"
fi
if [ $EUID -ne 0 ]; then
exec "$@"
else
# Allow telegraf to send ICMP packets and bind to privliged ports
setcap cap_net_raw,cap_net_bind_service+ep /usr/bin/telegraf || echo "Failed to set additional capabilities on /usr/bin/telegraf"
# ensure HOME is set to the telegraf user's home dir
export HOME=$(getent passwd telegraf | cut -d : -f 6)
# honor groups supplied via 'docker run --group-add ...' but drop 'root'
# (also removes 'telegraf' since we unconditionally add it and don't want it listed twice)
# see https://github.com/influxdata/influxdata-docker/issues/724
groups="telegraf"
extra_groups="$(id -Gn || true)"
for group in $extra_groups; do
case "$group" in
root | telegraf) ;;
*) groups="$groups,$group" ;;
esac
done
exec setpriv --reuid telegraf --regid telegraf --groups "$groups" "$@"
fi