chore(docker): Start emqx in foreground mode in docker container
This commit is contained in:
Zaiming Shi
Rory Z
parent
64e7056f3f
commit
9140eafd94
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@ -17,7 +17,7 @@ services:
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- |
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sed -i "s 127.0.0.1 $$(ip route show |grep "link" |awk '{print $$1}') g" /opt/emqx/etc/acl.conf
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sed -i '/emqx_telemetry/d' /opt/emqx/data/loaded_plugins
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/usr/bin/start.sh
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/opt/emqx/bin/emqx foreground
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healthcheck:
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test: ["CMD", "/opt/emqx/bin/emqx_ctl", "status"]
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interval: 5s
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@ -44,7 +44,7 @@ services:
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- |
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sed -i "s 127.0.0.1 $$(ip route show |grep "link" |awk '{print $$1}') g" /opt/emqx/etc/acl.conf
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sed -i '/emqx_telemetry/d' /opt/emqx/data/loaded_plugins
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/usr/bin/start.sh
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/opt/emqx/bin/emqx foreground
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healthcheck:
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test: ["CMD", "/opt/emqx/bin/emqx_ctl", "status"]
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interval: 5s
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@ -43,7 +43,7 @@ LABEL org.label-schema.docker.dockerfile="Dockerfile" \
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ARG QEMU_ARCH=x86_64
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ARG EMQX_NAME=emqx
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COPY deploy/docker/docker-entrypoint.sh deploy/docker/start.sh tmp/qemu-$QEMU_ARCH-stati* /usr/bin/
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COPY deploy/docker/docker-entrypoint.sh tmp/qemu-$QEMU_ARCH-stati* /usr/bin/
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COPY --from=builder /emqx/_build/$EMQX_NAME/rel/emqx /opt/emqx
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RUN ln -s /opt/emqx/bin/* /usr/local/bin/
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@ -77,4 +77,4 @@ EXPOSE 1883 8081 8083 8084 8883 11883 18083 4369 4370 5369 6369 6370
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ENTRYPOINT ["/usr/bin/docker-entrypoint.sh"]
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CMD ["/usr/bin/start.sh"]
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CMD ["/opt/emqx/bin/emqx", "foreground"]
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@ -69,9 +69,8 @@ These environment variables will ignore for configuration file.
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| Options | Default | Mapped | Description |
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| ---------------------------| ------------------ | ------------------------- | ------------------------------------- |
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| EMQX_NAME | container name | none | emqx node short name |
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| EMQX_HOST | container IP | none | emqx node host, IP or FQDN |
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| EMQX_WAIT_TIME | 5 | none | wait time in sec before timeout |
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| EMQX_NAME | container name | none | emqx node short name |
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| EMQX_HOST | container IP | none | emqx node host, IP or FQDN |
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The list is incomplete and may changed with [etc/emqx.conf](https://github.com/emqx/emqx/blob/master/etc/emqx.conf) and plugin configuration files. But the mapping rule is similar.
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@ -40,10 +40,6 @@ if [[ -z "$EMQX_HOST" ]]; then
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export EMQX_HOST
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fi
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if [[ -z "$EMQX_WAIT_TIME" ]]; then
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export EMQX_WAIT_TIME=5
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fi
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if [[ -z "$EMQX_NODE_NAME" ]]; then
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export EMQX_NODE_NAME="$EMQX_NAME@$EMQX_HOST"
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fi
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@ -1,62 +0,0 @@
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#!/bin/sh
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set -e -u
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EMQX_WAIT_TIME=${EMQX_WAIT_TIME:-5}
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emqx_exit(){
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# At least erlang.log.1 exists
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if [ -f /opt/emqx/log/erlang.log.1 ]; then
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# tail emqx.log.*
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erlang_log=$(echo $(ls -t /opt/emqx/log/erlang.log.*) | awk '{print $1}')
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num=$(sed -n -e '/LOGGING STARTED/=' ${erlang_log} | tail -1)
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[ ! -z $num ] && [ $num -gt 2 ] && tail -n +$(expr $num - 2) ${erlang_log}
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fi
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echo "['$(date -u +"%Y-%m-%dT%H:%M:%SZ")']:emqx exit abnormally"
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exit 1
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}
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## EMQ Main script
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# When receiving the EXIT signal, execute emqx_exit function
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trap "emqx_exit" EXIT
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# Start and run emqx, and when emqx crashed, this container will stop
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/opt/emqx/bin/emqx start
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# Sleep 5 seconds to wait for the loaded plugins catch up.
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sleep 5
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echo "['$(date -u +"%Y-%m-%dT%H:%M:%SZ")']:emqx start"
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## Fork tailing erlang.log, the fork is not killed after this script exits
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## The assumption is that this is the docker entrypoint,
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## hence docker container is terminated after entrypoint exists
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tail -f /opt/emqx/log/erlang.log.1 &
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# monitor emqx is running, or the docker must stop to let docker PaaS know
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# warning: never use infinite loops such as `` while true; do sleep 1000; done`` here
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# you must let user know emqx crashed and stop this container,
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# and docker dispatching system can known and restart this container.
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IDLE_TIME=0
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MGMT_CONF='/opt/emqx/etc/plugins/emqx_management.conf'
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MGMT_PORT=$(sed -n -r '/^management.listener.http[ \t]=[ \t].*$/p' $MGMT_CONF | sed -r 's/^management.listener.http = (.*)$/\1/g')
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while [ $IDLE_TIME -lt 5 ]; do
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IDLE_TIME=$(expr $IDLE_TIME + 1)
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if curl http://localhost:${MGMT_PORT}/status >/dev/null 2>&1; then
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IDLE_TIME=0
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# Print the latest erlang.log
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now_erlang_log=$(ps -ef |grep "tail -f /opt/emqx/log/erlang.log" |grep -v grep | sed -r "s/.*tail -f (.*)/\1/g")
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new_erlang_log="$(ls -t /opt/emqx/log/erlang.log.* | head -1)"
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if [ $now_erlang_log != $new_erlang_log ];then
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tail -f $new_erlang_log &
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kill $(ps -ef |grep "tail -f $now_erlang_log" | grep -v grep | awk '{print $1}')
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fi
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else
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echo "['$(date -u +"%Y-%m-%dT%H:%M:%SZ")']:emqx not running, waiting for recovery in $((25-IDLE_TIME*5)) seconds"
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fi
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sleep $EMQX_WAIT_TIME
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done
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# If running to here (the result 5 times not is running, thus in 25s emqx is not running), exit docker image
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# Then the high level PaaS, e.g. docker swarm mode, will know and alert, rebanlance this service
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