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Fix issue where dynamic port allocation during startup would take a long time

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This commit is contained in:
Josh.5
2022-10-10 16:40:10 +13:00
parent d893d9565c
commit 2c5da29701
1 changed files with 9 additions and 8 deletions
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17
overlay/etc/cont-init.d/90-configure_vnc.sh
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@@ -1,11 +1,12 @@
echo "**** Configure VNC ****" echo "**** Configure VNC ****"
function get_unused_port() { function get_next_unused_port() {
__start_port=${1} local __start_port=${1}
__start_port=$((__start_port+1)) local __start_port=$((__start_port+1))
local __netstat_report=$(netstat -atulnp 2> /dev/null)
for __check_port in $(seq ${__start_port} 65000); do for __check_port in $(seq ${__start_port} 65000); do
[[ -z $(netstat -ap 2> /dev/null | grep ${__check_port}) ]] && break; [[ -z $(echo "${__netstat_report}" | grep ${__check_port}) ]] && break;
done done
echo ${__check_port} echo ${__check_port}
} }
@@ -13,10 +14,10 @@ function get_unused_port() {
# Configure random ports for VNC service, pulseaudio socket, noVNC service and audio transport websocket # Configure random ports for VNC service, pulseaudio socket, noVNC service and audio transport websocket
# Note: Ports 32035-32248 are unallocated port ranges. We should be able to find something in here that we can use # Note: Ports 32035-32248 are unallocated port ranges. We should be able to find something in here that we can use
# REF: https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?&page=130 # REF: https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?&page=130
DYNAMIC_PORT_VNC=$(get_unused_port 32035) DYNAMIC_PORT_VNC=$(get_next_unused_port 32035)
DYNAMIC_PORT_NOVNC_SERVICE=$(get_unused_port ${DYNAMIC_PORT_VNC}) DYNAMIC_PORT_NOVNC_SERVICE=$(get_next_unused_port ${DYNAMIC_PORT_VNC})
DYNAMIC_PORT_AUDIO_WEBSOCKET=$(get_unused_port ${DYNAMIC_PORT_NOVNC_SERVICE}) DYNAMIC_PORT_AUDIO_WEBSOCKET=$(get_next_unused_port ${DYNAMIC_PORT_NOVNC_SERVICE})
DYNAMIC_PORT_AUDIO_STREAM=$(get_unused_port ${DYNAMIC_PORT_AUDIO_WEBSOCKET}) DYNAMIC_PORT_AUDIO_STREAM=$(get_next_unused_port ${DYNAMIC_PORT_AUDIO_WEBSOCKET})
export PORT_VNC=${PORT_VNC:-$DYNAMIC_PORT_VNC} export PORT_VNC=${PORT_VNC:-$DYNAMIC_PORT_VNC}
echo "Configure VNC service port '${PORT_VNC}'" echo "Configure VNC service port '${PORT_VNC}'"
export PORT_NOVNC_SERVICE=${PORT_NOVNC_SERVICE:-$DYNAMIC_PORT_NOVNC_SERVICE} export PORT_NOVNC_SERVICE=${PORT_NOVNC_SERVICE:-$DYNAMIC_PORT_NOVNC_SERVICE}