mirror of
https://github.com/AdguardTeam/AdGuardHome.git
synced 2024-11-21 20:45:33 +03:00
aeec9a86e2
Merge in DNS/adguard-home from 5714-handle-zeroes-health to master Updates #5714. Squashed commit of the following: commit 24faab01faf723e313050294b3a35e249c3cd3e3 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Apr 19 13:10:24 2023 +0300 docker: add curly brackets commit 67365d02856200685551a79aa23cf59df4a3484b Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Apr 18 20:16:12 2023 +0300 docker: imp zeroes check
107 lines
2.4 KiB
Bash
Executable file
107 lines
2.4 KiB
Bash
Executable file
#!/bin/sh
|
|
|
|
# AdGuard Home Docker healthcheck script
|
|
|
|
# Exit the script if a pipeline fails (-e), prevent accidental filename
|
|
# expansion (-f), and consider undefined variables as errors (-u).
|
|
set -e -f -u
|
|
|
|
# Function error_exit is an echo wrapper that writes to stderr and stops the
|
|
# script execution with code 1.
|
|
error_exit() {
|
|
echo "$1" 1>&2
|
|
|
|
exit 1
|
|
}
|
|
|
|
agh_dir="/opt/adguardhome"
|
|
readonly agh_dir
|
|
|
|
filename="${agh_dir}/conf/AdGuardHome.yaml"
|
|
readonly filename
|
|
|
|
if ! [ -f "$filename" ]
|
|
then
|
|
wget "http://127.0.0.1:3000" -O /dev/null -q || exit 1
|
|
|
|
exit 0
|
|
fi
|
|
|
|
help_dir="${agh_dir}/scripts"
|
|
readonly help_dir
|
|
|
|
# Parse web host
|
|
|
|
web_url="$( awk -f "${help_dir}/web-bind.awk" "$filename" )"
|
|
readonly web_url
|
|
|
|
if [ "$web_url" = '' ]
|
|
then
|
|
error_exit "no web bindings could be retrieved from $filename"
|
|
fi
|
|
|
|
# TODO(e.burkov): Deal with 0 port.
|
|
case "$web_url"
|
|
in
|
|
(*':0')
|
|
error_exit '0 in web port is not supported by healthcheck'
|
|
;;
|
|
(*)
|
|
# Go on.
|
|
;;
|
|
esac
|
|
|
|
# Parse DNS hosts
|
|
|
|
dns_hosts="$( awk -f "${help_dir}/dns-bind.awk" "$filename" )"
|
|
readonly dns_hosts
|
|
|
|
if [ "$dns_hosts" = '' ]
|
|
then
|
|
error_exit "no DNS bindings could be retrieved from $filename"
|
|
fi
|
|
|
|
first_dns="$( echo "$dns_hosts" | head -n 1 )"
|
|
readonly first_dns
|
|
|
|
# TODO(e.burkov): Deal with 0 port.
|
|
case "$first_dns"
|
|
in
|
|
(*':0')
|
|
error_exit '0 in DNS port is not supported by healthcheck'
|
|
;;
|
|
(*)
|
|
# Go on.
|
|
;;
|
|
esac
|
|
|
|
# Check
|
|
|
|
# Skip SSL certificate validation since there is no guarantee the container
|
|
# trusts the one used. It should be safe to drop the SSL validation since the
|
|
# current script intended to be used from inside the container and only checks
|
|
# the endpoint availability, ignoring the content of the response.
|
|
#
|
|
# See https://github.com/AdguardTeam/AdGuardHome/issues/5642.
|
|
wget --no-check-certificate "$web_url" -O /dev/null -q || exit 1
|
|
|
|
test_fqdn="healthcheck.adguardhome.test."
|
|
readonly test_fqdn
|
|
|
|
# The awk script currently returns only port prefixed with colon in case of
|
|
# unspecified address.
|
|
case "$first_dns"
|
|
in
|
|
(':'*)
|
|
nslookup -type=a "$test_fqdn" "127.0.0.1${first_dns}" > /dev/null ||\
|
|
nslookup -type=a "$test_fqdn" "[::1]${first_dns}" > /dev/null ||\
|
|
error_exit "nslookup failed for $host"
|
|
;;
|
|
(*)
|
|
echo "$dns_hosts" | while read -r host
|
|
do
|
|
nslookup -type=a "$test_fqdn" "$host" > /dev/null ||\
|
|
error_exit "nslookup failed for $host"
|
|
done
|
|
;;
|
|
esac
|