55 lines
2.3 KiB
Bash
Executable File
55 lines
2.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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## EMQ docker image start script
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if [[ -n "$DEBUG" ]]; then
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set -ex
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else
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set -e
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fi
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shopt -s nullglob
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## Local IP address setting
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LOCAL_IP=$(hostname -i | grep -oE '((25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])\.){3}(25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])' | head -n 1)
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export EMQX_NAME="${EMQX_NAME:-emqx}"
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## EMQX_NODE_NAME or EMQX_NODE__NAME to indicate the full node name to be used by EMQX
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## If both are set EMQX_NODE_NAME takes higher precedence than EMQX_NODE__NAME
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if [[ -z "${EMQX_NODE_NAME:-}" ]] && [[ -z "${EMQX_NODE__NAME:-}" ]]; then
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# No node name is provide from environment variables
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# try to resolve from other settings
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if [[ -z "$EMQX_HOST" ]]; then
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if [[ "$EMQX_CLUSTER__DISCOVERY_STRATEGY" == "dns" ]] && \
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[[ "$EMQX_CLUSTER__DNS__RECORD_TYPE" == "srv" ]] && \
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grep -q "$(hostname).$EMQX_CLUSTER__DNS__NAME" /etc/hosts; then
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EMQX_HOST="$(hostname).$EMQX_CLUSTER__DNS__NAME"
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elif [[ "$EMQX_CLUSTER__DISCOVERY_STRATEGY" == "k8s" ]] && \
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[[ "$EMQX_CLUSTER__K8S__ADDRESS_TYPE" == "dns" ]] && \
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[[ -n "$EMQX_CLUSTER__K8S__NAMESPACE" ]]; then
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EMQX_CLUSTER__K8S__SUFFIX=${EMQX_CLUSTER__K8S__SUFFIX:-"pod.cluster.local"}
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EMQX_HOST="${LOCAL_IP//./-}.$EMQX_CLUSTER__K8S__NAMESPACE.$EMQX_CLUSTER__K8S__SUFFIX"
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elif [[ "$EMQX_CLUSTER__DISCOVERY_STRATEGY" == "k8s" ]] && \
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[[ "$EMQX_CLUSTER__K8S__ADDRESS_TYPE" == 'hostname' ]] && \
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[[ -n "$EMQX_CLUSTER__K8S__NAMESPACE" ]]; then
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EMQX_CLUSTER__K8S__SUFFIX=${EMQX_CLUSTER__K8S__SUFFIX:-'svc.cluster.local'}
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EMQX_HOST=$(grep -h "^$LOCAL_IP" /etc/hosts | grep -o "$(hostname).*.$EMQX_CLUSTER__K8S__NAMESPACE.$EMQX_CLUSTER__K8S__SUFFIX")
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else
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EMQX_HOST="$LOCAL_IP"
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fi
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export EMQX_HOST
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fi
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export EMQX_NODE_NAME="$EMQX_NAME@$EMQX_HOST"
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fi
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# The default rpc port discovery 'stateless' is mostly for clusters
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# having static node names. So it's troulbe-free for multiple emqx nodes
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# running on the same host.
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# When start emqx in docker, it's mostly one emqx node in one container
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# i.e. use port 5369 (or per tcp_server_port | ssl_server_port config) for gen_rpc
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export EMQX_RPC__PORT_DISCOVERY="${EMQX_RPC__PORT_DISCOVERY:-manual}"
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exec "$@"
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