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virtual-dsm/src/server.sh
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#!/usr/bin/env bash
set -Eeuo pipefail
: "${WEB_PORT:="5000"}" # Webserver port
: "${WSD_PORT:="8004"}" # Websockets port
# Sanitize port variables
WEB_PORT=$(strip "$WEB_PORT")
WSD_PORT=$(strip "$WSD_PORT")
WEB_PID="/run/nginx.pid"
WSD_LOG="/var/log/websocketd.log"
WSD_PID="$QEMU_DIR/websocketd.pid"
prepareWebFiles() {
cp -r /var/www/* "$QEMU_DIR" || return 1
rm -f "$WSD_PID" "$WEB_PID" "$WSD_LOG" || return 1
return 0
}
configureWebPorts() {
sed -i "s/listen 5000 default_server;/listen $WEB_PORT default_server;/g" /etc/nginx/sites-enabled/web.conf
sed -i "s/proxy_pass http:\/\/127.0.0.1:8004\/;/proxy_pass http:\/\/127.0.0.1:$WSD_PORT\/;/g" /etc/nginx/sites-enabled/web.conf
return 0
}
configureIpv6Listen() {
# shellcheck disable=SC2143
if [ -f /proc/net/if_inet6 ] && [[ "$(cat /proc/sys/net/ipv6/conf/all/disable_ipv6 2>/dev/null)" != "1" ]]; then
sed -i "s/listen $WEB_PORT default_server;/listen [::]:$WEB_PORT default_server ipv6only=off;/g" /etc/nginx/sites-enabled/web.conf
fi
return 0
}
configureWebServer() {
mkdir -p /etc/nginx/sites-enabled
cp /etc/nginx/default.conf /etc/nginx/sites-enabled/web.conf
configureWebPorts || return 1
configureIpv6Listen || return 1
return 0
}
startWebServer() {
# Start webserver
nginx -e stderr || return 1
return 0
}
startWebsocketServer() {
# Start websocket server
websocketd \
--address 127.0.0.1 \
--port="$WSD_PORT" \
/run/socket.sh \
>"$WSD_LOG" 2>&1 &
local pid=$!
if ! echo "$pid" > "$WSD_PID"; then
kill "$pid" 2>/dev/null || :
return 1
fi
sleep 0.1
if ! isAlive "$pid"; then
rm -f "$WSD_PID"
[ -s "$WSD_LOG" ] && cat "$WSD_LOG" >&2
error "Failed to start websocket server!"
return 1
fi
return 0
}
prepareWebFiles
html "Starting $APP for $ENGINE..."
disabled "${WEB:-}" && return 0
configureWebServer
startWebServer
startWebsocketServer
return 0