Hi folks
I wonder if someone could assist me please. I am trying to get a docker based MQTT (mosquitto) server running on my IR828. This is a requirement for some IoT work we are doing.
I am using the super lightweight image from Docker Hub (https://hub.docker.com/_/eclipse-mosquitto) and I can build and run the image no issues on the dev machine. I can then package, install and activate the app on the 829. However, as soon as I start it, it stops. I am using NAT network settings, however, if I choose BRIDGE, then the container starts and continues to run (the log file does however say it is waiting for an IP address, so it can't be used). I tested the router setup with the simple nodejs web server docker example (https://developer.cisco.com/docs/iox/#!tutorial-build-sample-docker-type-nodejs-based-http-server-using-alpine-base-image/overview) and this works fine (using NAT config).
I'm not all that experienced with the creation files, so I think there may be an issue between the Dockerfile and my package.yaml file (below). The package.yaml is a modified version of the one from the nodejs webserver example.
I'm wondering if the app start process is not working, and maybe there is a clash between the Dockerfile config and the package.yaml file config.
There is also nothing specific in the either the watchdog or container log.
Any help much appreciated.
Thanks
Andre
Dockerfile:
FROM alpine:3.8
LABEL maintainer="Roger Light <roger@atchoo.org>" \
description="Eclipse Mosquitto MQTT Broker"
ENV VERSION=1.5.5 \
DOWNLOAD_SHA256=fcdb47e340864c545146681af7253399cc292e41775afd76400fda5b0d23d668 \
GPG_KEYS=A0D6EEA1DCAE49A635A3B2F0779B22DFB3E717B7 \
LWS_VERSION=2.4.2
RUN set -x && \
apk --no-cache add --virtual build-deps \
build-base \
cmake \
gnupg \
libressl-dev \
util-linux-dev && \
wget https://github.com/warmcat/libwebsockets/archive/v${LWS_VERSION}.tar.gz -O /tmp/lws.tar.gz && \
mkdir -p /build/lws && \
tar --strip=1 -xf /tmp/lws.tar.gz -C /build/lws && \
rm /tmp/lws.tar.gz && \
cd /build/lws && \
cmake . \
-DCMAKE_BUILD_TYPE=MinSizeRel \
-DCMAKE_INSTALL_PREFIX=/usr \
-DLWS_IPV6=ON \
-DLWS_WITHOUT_BUILTIN_GETIFADDRS=ON \
-DLWS_WITHOUT_CLIENT=ON \
-DLWS_WITHOUT_EXTENSIONS=ON \
-DLWS_WITHOUT_TESTAPPS=ON \
-DLWS_WITH_SHARED=OFF \
-DLWS_WITH_ZIP_FOPS=OFF \
-DLWS_WITH_ZLIB=OFF && \
make -j "$(nproc)" && \
rm -rf /root/.cmake && \
wget https://mosquitto.org/files/source/mosquitto-${VERSION}.tar.gz -O /tmp/mosq.tar.gz && \
echo "$DOWNLOAD_SHA256 /tmp/mosq.tar.gz" | sha256sum -c - && \
wget https://mosquitto.org/files/source/mosquitto-${VERSION}.tar.gz.asc -O /tmp/mosq.tar.gz.asc && \
export GNUPGHOME="$(mktemp -d)" && \
found=''; \
for server in \
ha.pool.sks-keyservers.net \
hkp://keyserver.ubuntu.com:80 \
hkp://p80.pool.sks-keyservers.net:80 \
pgp.mit.edu \
; do \
echo "Fetching GPG key $GPG_KEYS from $server"; \
gpg --keyserver "$server" --keyserver-options timeout=10 --recv-keys "$GPG_KEYS" && found=yes && break; \
done; \
test -z "$found" && echo >&2 "error: failed to fetch GPG key $GPG_KEYS" && exit 1; \
-DLWS_WITH_ZLIB=OFF && \
make -j "$(nproc)" && \
rm -rf /root/.cmake && \
wget https://mosquitto.org/files/source/mosquitto-${VERSION}.tar.gz -O /tmp/mosq.tar.gz && \
echo "$DOWNLOAD_SHA256 /tmp/mosq.tar.gz" | sha256sum -c - && \
wget https://mosquitto.org/files/source/mosquitto-${VERSION}.tar.gz.asc -O /tmp/mosq.tar.gz.asc && \
export GNUPGHOME="$(mktemp -d)" && \
found=''; \
for server in \
ha.pool.sks-keyservers.net \
hkp://keyserver.ubuntu.com:80 \
hkp://p80.pool.sks-keyservers.net:80 \
pgp.mit.edu \
; do \
echo "Fetching GPG key $GPG_KEYS from $server"; \
gpg --keyserver "$server" --keyserver-options timeout=10 --recv-keys "$GPG_KEYS" && found=yes && break; \
done; \
test -z "$found" && echo >&2 "error: failed to fetch GPG key $GPG_KEYS" && exit 1; \
gpg --batch --verify /tmp/mosq.tar.gz.asc /tmp/mosq.tar.gz && \
gpgconf --kill all && \
rm -rf "$GNUPGHOME" /tmp/mosq.tar.gz.asc && \
mkdir -p /build/mosq && \
tar --strip=1 -xf /tmp/mosq.tar.gz -C /build/mosq && \
rm /tmp/mosq.tar.gz && \
make -C /build/mosq -j "$(nproc)" \
CFLAGS="-Wall -O2 -I/build/lws/include -flto" \
LDFLAGS="-L/build/lws/lib -flto" \
WITH_ADNS=no \
WITH_DOCS=no \
WITH_MEMORY_TRACKING=no \
WITH_SHARED_LIBRARIES=no \
WITH_SRV=no \
WITH_STRIP=yes \
WITH_TLS_PSK=no \
WITH_WEBSOCKETS=yes \
prefix=/usr \
binary && \
addgroup -S -g 1883 mosquitto 2>/dev/null && \
adduser -S -u 1883 -D -H -h /var/empty -s /sbin/nologin -G mosquitto -g mosquitto mosquitto 2>/dev/null && \
mkdir -p /mosquitto/config /mosquitto/data /mosquitto/log && \
install -d /usr/sbin/ && \
install -s -m755 /build/mosq/src/mosquitto /usr/sbin/mosquitto && \
install -s -m755 /build/mosq/src/mosquitto_passwd /usr/bin/mosquitto_passwd && \
install -m644 /build/mosq/mosquitto.conf /mosquitto/config/mosquitto.conf && \
chown -R mosquitto:mosquitto /mosquitto && \
apk --no-cache add \
libuuid && \
apk del build-deps && \
rm -rf /build
VOLUME ["/mosquitto/data", "/mosquitto/log"]
# Set up the entry point script and default command
COPY docker-entrypoint.sh /
RUN chmod 777 /docker-entrypoint.sh
ENTRYPOINT ["/docker-entrypoint.sh"]
CMD ["/usr/sbin/mosquitto", "-c", "/mosquitto/config/mosquitto.conf"]
Package.yaml:
descriptor-schema-version: "2.2"
info:
name: mqtt_docker
description: "Simple Docker based MQTT server"
version: "1.0"
author-link: ""
author-name: ""
app:
# Indicate app type (vm, paas, lxc etc.,)
cpuarch: "x86_64"
type: docker
resources:
profile: c1.small
network:
-
interface-name: eth0
ports:
tcp: [1883]
# Specify runtime and startup
startup:
rootfs: rootfs.tar
target: ["/usr/sbin/mosquitto", "-c", "/mosquitto/config/mosquitto.conf"]
