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Make target for building a docker image based on working dir files.
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FROM alpine:3.8 | ||
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LABEL maintainer="Roger Light <[email protected]>" \ | ||
description="Eclipse Mosquitto MQTT Broker" | ||
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ENV LWS_VERSION=2.4.2 | ||
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COPY mosq.tar.gz /tmp | ||
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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 && \ | ||
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" \ | ||
LDFLAGS="-L/build/lws/lib" \ | ||
WITH_ADNS=no \ | ||
WITH_DOCS=no \ | ||
WITH_MEMORY_TRACKING=yes \ | ||
WITH_SHARED_LIBRARIES=yes \ | ||
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/client/mosquitto_pub /usr/bin/mosquitto_pub && \ | ||
install -s -m755 /build/mosq/client/mosquitto_rr /usr/bin/mosquitto_rr && \ | ||
install -s -m755 /build/mosq/client/mosquitto_sub /usr/bin/mosquitto_sub && \ | ||
install -s -m644 /build/mosq/lib/libmosquitto.so.1 /usr/lib/libmosquitto.so.1 && \ | ||
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 del build-deps && \ | ||
rm -rf /build | ||
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VOLUME ["/mosquitto/data", "/mosquitto/log"] | ||
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# Set up the entry point script and default command | ||
COPY docker-entrypoint.sh / | ||
ENTRYPOINT ["/docker-entrypoint.sh"] | ||
CMD ["/usr/sbin/mosquitto", "-c", "/mosquitto/config/mosquitto.conf"] |
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# Eclipse Mosquitto Docker Image | ||
Containers built with this Dockerfile build from a source tarball "mosq.tar.gz" | ||
placed in the local directory. Running `make localdocker` from the root of the | ||
repository will generate the source tar and build the docker image. | ||
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## Mount Points | ||
A docker mount point has been created in the image to be used for configuration. | ||
``` | ||
/mosquitto/config | ||
``` | ||
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Two docker volumes have been created in the image to be used for persistent storage and logs. | ||
``` | ||
/mosquitto/data | ||
/mosquitto/log | ||
``` | ||
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## User/Group | ||
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The image runs mosqutto under the mosquitto user and group, which are created | ||
with a uid and gid of 1883. | ||
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## Configuration | ||
When creating a container from the image, the default configuration values are used. | ||
To use a custom configuration file, mount a **local** configuration file to `/mosquitto/config/mosquitto.conf` | ||
``` | ||
docker run -it -p 1883:1883 -v <absolute-path-to-configuration-file>:/mosquitto/config/mosquitto.conf eclipse-mosquitto:<version> | ||
``` | ||
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:boom: if the mosquitto configuration (mosquitto.conf) was modified | ||
to use non-default ports, the docker run command will need to be updated | ||
to expose the ports that have been configured, for example: | ||
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``` | ||
docker run -it -p 1883:1883 -p 9001:9001 -v <absolute-path-to-configuration-file>:/mosquitto/config/mosquitto.conf eclipse-mosquitto:<version> | ||
``` | ||
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Configuration can be changed to: | ||
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* persist data to `/mosquitto/data` | ||
* log to `/mosquitto/log/mosquitto.log` | ||
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i.e. add the following to `mosquitto.conf`: | ||
``` | ||
persistence true | ||
persistence_location /mosquitto/data/ | ||
log_dest file /mosquitto/log/mosquitto.log | ||
``` | ||
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**Note**: For any volume used, the data will be persistent between containers. |
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#!/bin/ash | ||
set -e | ||
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exec "$@" |