mirror of
https://github.com/overleaf/overleaf.git
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74 lines
1.3 KiB
Bash
74 lines
1.3 KiB
Bash
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#!/bin/bash
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# USAGE: $0 [NUMBER_OF_NODES, default: 9] [DATA_DIR, default: a new temp dir]
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#
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# ports are assigned from 7000 on
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#
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# NOTE: the cluster setup requires redis 5+
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set -ex
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COUNT=${1:-9}
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DATA=$2
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if [[ -z "$DATA" ]]; then
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IS_TEMP=1
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TEMP=`mktemp -d`
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DATA="$TEMP"
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fi
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HAS_DATA=
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if [[ -e "$DATA/7000/node.conf" ]]; then
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HAS_DATA=1
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fi
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PIDs=""
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cleanup() {
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# ensure that we delete the temp dir, no matter how the kill cmd exists
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set +e
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# invoke kill with at least one PID
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echo "$PIDs" | xargs -r kill
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if [[ ! -z "$IS_TEMP" ]]; then
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rm -rf "$TEMP"
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fi
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}
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trap cleanup exit
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for NUM in `seq "$COUNT"`; do
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PORT=`expr 6999 + "$NUM"`
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CWD="$DATA/$PORT"
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mkdir -p "$CWD"
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pushd "$CWD"
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redis-server \
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--appendonly no \
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--cluster-enabled yes \
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--cluster-config-file node.conf \
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--port "$PORT" \
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--save "" \
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> /dev/null \
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&
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PIDs="$PIDs $!"
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popd
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done
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# initial nodes
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if [[ -z "$HAS_DATA" ]]; then
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# confirm the setup
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echo yes \
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| redis-cli --cluster create 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002
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fi
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# scale up as requested
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for NUM in `seq 4 "$COUNT"`; do
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PORT=`expr 6999 + "$NUM"`
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GUARD="$DATA/$PORT/.joined"
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if [[ ! -e "$GUARD" ]]; then
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redis-cli --cluster add-node "127.0.0.1:$PORT" 127.0.0.1:7000 --cluster-slave
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touch "$GUARD"
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fi
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done
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echo "CLUSTER IS READY" >&2
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wait
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