StarlingX System Configuration Management
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#!/bin/bash
#
# Copyright (c) 2020 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
DOCKER_USERNAME=$1
DOCKER_PASSWORD=$2
LNAME=$(readlink -n -f $0)
NAME=$(basename $LNAME)
# Log info message to /var/log/daemon.log
function LOG {
logger -p daemon.info -t "${NAME}($$): " "$@"
}
# Wait around for the "registry.local" name to resolve
LOG "Waiting for registry.local to resolve"
while true
do
# We can't easily ask for both A and AAAA records in the same request
# because if the customer mis-configures things with a "good" nameserver
# and a non-existant nameserver dig will return "9" even though it finds
# an AAAA record on the "good" server. So we need to ask for A and AAAA
# records separately. Once we have either type of record we can proceed.
# First check for A records for IPv4
ADDR=`dig +short registry.local A`
if [ $? -eq 0 ]
then
# We got a response back from the server, but we need to check
# if we got an address or not. If there is no address, ADDR will
# be an empty string.
if [ -n "$ADDR" ]
then
echo LOG "registry.local resolved IPv4, continuing with docker login"
break
fi
fi
# Then check for AAAA records for IPv6
ADDR=`dig +short registry.local AAAA`
if [ $? -eq 0 ]
then
# We got a response back from the server, but we need to check
# if we got an address or not. If there is no address, ADDR will
# be an empty string.
if [ -n "$ADDR" ]
then
echo LOG "registry.local resolved IPv6, continuing with docker login"
break
fi
fi
sleep 1
done
docker login --password-stdin -u ${DOCKER_USERNAME} registry.local:9001 <<< ${DOCKER_PASSWORD}
if [ $? -eq 0 ]
then
LOG "docker login to registry.local completed successfully"
touch /var/run/docker_login_done
fi