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Pull request 1909: 5939-rm-healthcheck
Updates #5939.
Squashed commit of the following:
commit 087309b4ef100e97339f49cf1c2e90ba2fa4293f
Merge: 360df813d c21f958ea
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date: Fri Jul 7 13:18:52 2023 +0300
Merge branch 'master' into 5939-rm-healthcheck
commit 360df813d995f935c591aaea9c56fe4372ca2281
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date: Wed Jul 5 14:16:18 2023 +0300
all: rm docker healthcheck
This commit is contained in:
Ainar Garipov
parent
c21f958eaf
commit
f7dd832517
6 changed files with 24 additions and 183 deletions
21
CHANGELOG.md
21
CHANGELOG.md
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@ -57,11 +57,26 @@ In this release, the schema version has changed from 23 to 24.
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To rollback this change, remove the new object `log`, set back `log_` and
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`verbose` properties and change the `schema_version` back to `23`.
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### Deprecated
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- Default exposure of the non-standard ports 784 and 8853 for DNS-over-QUIC in
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the `Dockerfile`.
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### Fixed
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- Excessive RAM and CPU consumption by Safe Browsing and Parental Control
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filters ([#5896]).
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### Removed
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- The `HEALTHCHECK` section and the use of `tini` in the `ENTRYPOINT` section in
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`Dockerfile` ([#5939]). They caused a lot of issues, especially with tools
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like `docker-compose` and `podman`.
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**NOTE:** Some Docker tools may cache `ENTRYPOINT` sections, so some users may
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be required to backup their configuration, stop the container, purge the old
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image, and reload it from scratch.
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[#5896]: https://github.com/AdguardTeam/AdGuardHome/issues/5896
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<!--
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@ -188,9 +203,9 @@ In this release, the schema version has changed from 20 to 23.
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### Deprecated
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- `HEALTHCHECK` and `ENTRYPOINT` sections in `Dockerfile` ([#5939]). They cause
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a lot of issues, especially with tools like `docker-compose` and `podman`, and
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will be removed in a future release.
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- The `HEALTHCHECK` section and the use of `tini` in the `ENTRYPOINT` section in
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`Dockerfile` ([#5939]). They cause a lot of issues, especially with tools
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like `docker-compose` and `podman`, and will be removed in a future release.
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- Flags `-h`, `--host`, `-p`, `--port` have been deprecated. The `-h` flag
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will work as an alias for `--help`, instead of the deprecated `--host` in the
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future releases.
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@ -1,6 +1,6 @@
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# A docker file for scripts/make/build-docker.sh.
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FROM alpine:3.17
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FROM alpine:3.18
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ARG BUILD_DATE
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ARG VERSION
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@ -25,8 +25,6 @@ RUN apk --no-cache add ca-certificates libcap tzdata && \
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mkdir -p /opt/adguardhome/conf /opt/adguardhome/work && \
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chown -R nobody: /opt/adguardhome
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RUN apk --no-cache add tini
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ARG DIST_DIR
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ARG TARGETARCH
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ARG TARGETOS
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@ -43,43 +41,24 @@ RUN setcap 'cap_net_bind_service=+eip' /opt/adguardhome/AdGuardHome
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# 68 : UDP : DHCP (client)
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# 80 : TCP : HTTP (main)
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# 443 : TCP, UDP : HTTPS, DNS-over-HTTPS (incl. HTTP/3), DNSCrypt (main)
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# 784 : UDP : DNS-over-QUIC (experimental)
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# 784 : UDP : DNS-over-QUIC (deprecated; use 853)
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# 853 : TCP, UDP : DNS-over-TLS, DNS-over-QUIC
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# 3000 : TCP, UDP : HTTP(S) (alt, incl. HTTP/3)
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# 3001 : TCP, UDP : HTTP(S) (beta, incl. HTTP/3)
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# 5443 : TCP, UDP : DNSCrypt (alt)
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# 6060 : TCP : HTTP (pprof)
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# 8853 : UDP : DNS-over-QUIC (experimental)
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# 8853 : UDP : DNS-over-QUIC (deprecated; use 853)
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#
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# TODO(a.garipov): Remove the old, non-standard 784 and 8853 ports for
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# DNS-over-QUIC in a future release.
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EXPOSE 53/tcp 53/udp 67/udp 68/udp 80/tcp 443/tcp 443/udp 784/udp\
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853/tcp 853/udp 3000/tcp 3000/udp 5443/tcp\
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5443/udp 6060/tcp 8853/udp
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853/tcp 853/udp 3000/tcp 3000/udp 5443/tcp 5443/udp 6060/tcp\
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8853/udp
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WORKDIR /opt/adguardhome/work
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# Install helpers for healthcheck.
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COPY --chown=nobody:nogroup\
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./${DIST_DIR}/docker/scripts\
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/opt/adguardhome/scripts
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HEALTHCHECK \
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--interval=30s \
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--timeout=10s \
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--retries=3 \
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CMD [ "/opt/adguardhome/scripts/healthcheck.sh" ]
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# It seems that the healthckech script sometimes spawns zombie processes, so we
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# need a way to handle them, since AdGuard Home doesn't know how to keep track
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# of the processes delegated to it by the OS. Use tini as entry point because
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# it needs the PID=1 to be the default parent for orphaned processes.
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#
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# See https://github.com/adguardTeam/adGuardHome/issues/3290.
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ENTRYPOINT [ "/sbin/tini", "--" ]
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ENTRYPOINT ["/opt/adguardhome/AdGuardHome"]
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CMD [ \
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"/opt/adguardhome/AdGuardHome", \
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"--no-check-update", \
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"-c", "/opt/adguardhome/conf/AdGuardHome.yaml", \
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"-w", "/opt/adguardhome/work" \
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@ -1,29 +0,0 @@
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/^[^[:space:]]/ { is_dns = /^dns:/ }
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/^[[:space:]]+bind_hosts:/ { if (is_dns) prev_line = FNR }
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/^[[:space:]]+- .+/ {
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if (FNR - prev_line == 1) {
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addrs[$2] = true
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prev_line = FNR
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if ($2 == "0.0.0.0" || $2 == "'::'") {
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# Drop all the other addresses.
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delete addrs
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addrs[""] = true
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prev_line = -1
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}
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}
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}
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/^[[:space:]]+port:/ { if (is_dns) port = $2 }
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END {
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for (addr in addrs) {
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if (match(addr, ":")) {
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print "[" addr "]:" port
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} else {
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print addr ":" port
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}
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}
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}
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@ -1,107 +0,0 @@
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#!/bin/sh
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# AdGuard Home Docker healthcheck script
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# Exit the script if a pipeline fails (-e), prevent accidental filename
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# expansion (-f), and consider undefined variables as errors (-u).
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set -e -f -u
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# Function error_exit is an echo wrapper that writes to stderr and stops the
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# script execution with code 1.
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error_exit() {
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echo "$1" 1>&2
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exit 1
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}
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agh_dir="/opt/adguardhome"
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readonly agh_dir
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filename="${agh_dir}/conf/AdGuardHome.yaml"
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readonly filename
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if ! [ -f "$filename" ]
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then
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wget "http://127.0.0.1:3000" -O /dev/null -q || exit 1
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exit 0
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fi
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help_dir="${agh_dir}/scripts"
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readonly help_dir
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# Parse web host
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web_url="$( awk -f "${help_dir}/web-bind.awk" "$filename" )"
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readonly web_url
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if [ "$web_url" = '' ]
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then
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error_exit "no web bindings could be retrieved from $filename"
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fi
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# TODO(e.burkov): Deal with 0 port.
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case "$web_url"
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in
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(*':0')
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error_exit '0 in web port is not supported by healthcheck'
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;;
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(*)
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# Go on.
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;;
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esac
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# Parse DNS hosts
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dns_hosts="$( awk -f "${help_dir}/dns-bind.awk" "$filename" )"
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readonly dns_hosts
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if [ "$dns_hosts" = '' ]
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then
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error_exit "no DNS bindings could be retrieved from $filename"
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fi
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first_dns="$( echo "$dns_hosts" | head -n 1 )"
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readonly first_dns
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# TODO(e.burkov): Deal with 0 port.
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case "$first_dns"
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in
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(*':0')
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error_exit '0 in DNS port is not supported by healthcheck'
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;;
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(*)
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# Go on.
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;;
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esac
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# Check
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# Skip SSL certificate validation since there is no guarantee the container
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# trusts the one used. It should be safe to drop the SSL validation since the
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# current script intended to be used from inside the container and only checks
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# the endpoint availability, ignoring the content of the response.
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#
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# See https://github.com/AdguardTeam/AdGuardHome/issues/5642.
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wget --no-check-certificate "$web_url" -O /dev/null -q || exit 1
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test_fqdn="healthcheck.adguardhome.test."
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readonly test_fqdn
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# The awk script currently returns only port prefixed with colon in case of
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# unspecified address.
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case "$first_dns"
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in
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(':'*)
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nslookup -type=a "$test_fqdn" "127.0.0.1${first_dns}" > /dev/null ||\
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nslookup -type=a "$test_fqdn" "[::1]${first_dns}" > /dev/null ||\
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error_exit "nslookup failed for $host"
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;;
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(*)
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echo "$dns_hosts" | while read -r host
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do
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nslookup -type=a "$test_fqdn" "$host" > /dev/null ||\
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error_exit "nslookup failed for $host"
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done
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;;
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esac
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@ -1,5 +0,0 @@
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# Don't consider the HTTPS hostname since the enforced HTTPS redirection should
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# work if the SSL check skipped. See file docker/healthcheck.sh.
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/^[^[:space:]]/ { is_http = /^http:/ }
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/^[[:space:]]+address:/ { if (is_http) print "http://" $2 }
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@ -107,18 +107,6 @@ cp "${dist_dir}/AdGuardHome_linux_arm_7/AdGuardHome/AdGuardHome"\
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cp "${dist_dir}/AdGuardHome_linux_ppc64le/AdGuardHome/AdGuardHome"\
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"${dist_docker}/AdGuardHome_linux_ppc64le_"
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# Copy the helper scripts. See file docker/Dockerfile.
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dist_docker_scripts="${dist_docker}/scripts"
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readonly dist_docker_scripts
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mkdir -p "$dist_docker_scripts"
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cp "./docker/dns-bind.awk"\
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"${dist_docker_scripts}/dns-bind.awk"
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cp "./docker/web-bind.awk"\
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"${dist_docker_scripts}/web-bind.awk"
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cp "./docker/healthcheck.sh"\
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"${dist_docker_scripts}/healthcheck.sh"
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# Don't use quotes with $docker_version_tag and $docker_channel_tag, because we
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# want word splitting and or an empty space if tags are empty.
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#
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