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Merge pull request #3243 from nextcloud/ha-proxy-update
This commit is contained in:
Simon L
GitHub
commit
5b94e833bd
5 changed files with 72 additions and 103 deletions
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@ -1,43 +1,17 @@
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# Inspiration: https://github.com/Tecnativa/docker-socket-proxy/blob/master/Dockerfile
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FROM haproxy:2.8.2-alpine3.18
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USER root
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ENV NEXTCLOUD_HOST nextcloud-aio-nextcloud
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RUN set -ex; \
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apk add --no-cache tzdata; \
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chmod 777 -R /run/; \
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chmod 777 -R /var/lib/haproxy
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apk add --no-cache \
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ca-certificates \
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tzdata \
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bind-tools; \
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chmod -R 777 /tmp
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EXPOSE 2375
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ENV ALLOW_RESTARTS=1 \
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AUTH=1 \
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BUILD=0 \
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COMMIT=0 \
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CONFIGS=0 \
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CONTAINERS=1 \
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DISTRIBUTION=0 \
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EVENTS=0 \
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EXEC=0 \
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GRPC=0 \
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IMAGES=1 \
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INFO=1 \
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LOG_LEVEL=info \
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NETWORKS=1 \
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NODES=0 \
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PING=1 \
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PLUGINS=0 \
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POST=1 \
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SECRETS=0 \
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SERVICES=0 \
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SESSION=0 \
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SOCKET_PATH=/var/run/docker.sock \
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SWARM=0 \
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SYSTEM=0 \
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TASKS=0 \
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VERSION=1 \
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VOLUMES=1
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COPY haproxy.cfg /usr/local/etc/haproxy/haproxy.cfg
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COPY --chmod=775 *.sh /
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COPY --chmod=664 haproxy.cfg /haproxy.cfg
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USER root
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HEALTHCHECK CMD nc -z 127.0.0.1 2375 || exit 1
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ENTRYPOINT ["/start.sh"]
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HEALTHCHECK CMD /healthcheck.sh
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LABEL com.centurylinklabs.watchtower.enable="false"
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@ -1,72 +1,41 @@
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# Inspiration: https://github.com/Tecnativa/docker-socket-proxy/blob/master/haproxy.cfg
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global
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log stdout format raw daemon "${LOG_LEVEL}"
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pidfile /run/haproxy.pid
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maxconn 4000
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# Turn on stats unix socket
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# server-state-file /var/lib/haproxy/server-state
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defaults
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mode http
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log global
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option httplog
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option dontlognull
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option http-server-close
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option redispatch
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retries 3
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timeout http-request 10s
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timeout queue 1m
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timeout connect 10s
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timeout client 10m
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timeout server 10m
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timeout http-keep-alive 10s
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timeout check 10s
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maxconn 3000
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timeout client 10s
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timeout server 10s
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# Allow seamless reloads
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# load-server-state-from-file global
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# Use provided example error pages
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errorfile 400 /usr/local/etc/haproxy/errors/400.http
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errorfile 403 /usr/local/etc/haproxy/errors/403.http
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errorfile 408 /usr/local/etc/haproxy/errors/408.http
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errorfile 500 /usr/local/etc/haproxy/errors/500.http
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errorfile 502 /usr/local/etc/haproxy/errors/502.http
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errorfile 503 /usr/local/etc/haproxy/errors/503.http
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errorfile 504 /usr/local/etc/haproxy/errors/504.http
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backend dockerbackend
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server dockersocket $SOCKET_PATH
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frontend dockerfrontend
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frontend http
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mode http
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bind :2375
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http-request deny unless METH_GET || { env(POST) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/containers/[a-zA-Z0-9_.-]+/((stop)|(restart)|(kill)) } { env(ALLOW_RESTARTS) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/auth } { env(AUTH) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/build } { env(BUILD) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/commit } { env(COMMIT) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/configs } { env(CONFIGS) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/containers } { env(CONTAINERS) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/distribution } { env(DISTRIBUTION) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/events } { env(EVENTS) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/exec } { env(EXEC) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/grpc } { env(GRPC) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/images } { env(IMAGES) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/info } { env(INFO) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/networks } { env(NETWORKS) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/nodes } { env(NODES) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/_ping } { env(PING) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/plugins } { env(PLUGINS) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/secrets } { env(SECRETS) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/services } { env(SERVICES) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/session } { env(SESSION) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/swarm } { env(SWARM) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/system } { env(SYSTEM) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/tasks } { env(TASKS) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/version } { env(VERSION) -m bool }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/volumes } { env(VOLUMES) -m bool }
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http-request deny unless { src 127.0.0.1 } || { src ::1 } || { src NC_IPV4_PLACEHOLDER } || { src NC_IPV6_PLACEHOLDER }
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/containers/nc_app_[a-zA-Z0-9_.-]+/((json)|(start)|(stop)) } METH_GET
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/containers/nc_app_[a-zA-Z0-9_.-]+ } METH_DELETE
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# ACL to restrict container name to nc_app_[a-zA-Z0-9_.-]+
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acl nc_app_container_name url_param(name) -m reg -i "^nc_app_[a-zA-Z0-9_.-]+"
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# ACL to restrict the number of Mounts to 1
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acl one_mount_volume req.body -m reg -i "\"Mounts\"\s*:\s*\[\s*(?:(?!\"Mounts\"\s*:\s*\[)[^}]*)}[^}]*\]"
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# ACL to deny if there are any binds
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acl binds_present req.body -m reg -i "\"HostConfig\"\s*:.*\"Binds\"\s*:"
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# ACL to restrict the type of Mounts to volume
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acl type_not_volume req.body -m reg -i "\"Mounts\":\s*\[[^\]]*(\"Type\":\s*\"(?!volume\b)\w+\"[^\]]*)+\]"
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http-request deny if { path,url_dec -m reg -i ^(/v[\d\.]+)?/containers/create } nc_app_container_name !one_mount_volume binds_present type_not_volume METH_POST
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# ACL to restrict container creation, that it has HostConfig.Privileged only set to false
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acl no_privileged_flag req.body -m reg -i "\"HostConfig\":\s?{[^}]*\"Privileged\":\s?false"
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# ACL to allow mount volume with strict pattern for name: nc_app_[a-zA-Z0-9_.-]+_data
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acl nc_app_volume_data_only req.body -m reg -i "\"Mounts\":\s?\[\s?{[^}]*\"Source\":\s?\"nc_app_[a-zA-Z0-9_.-]+_data\""
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/containers/create } nc_app_container_name no_privileged_flag nc_app_volume_data_only METH_POST
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acl nc_app_volume_data req.body -m reg -i "\"Name\":\s?\"nc_app_[a-zA-Z0-9_.-]+_data\""
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/volumes/create } nc_app_volume_data METH_POST
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/volumes/nc_app_[a-zA-Z0-9_.-]+_data } METH_DELETE
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http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/images/create } METH_POST
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http-request deny
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default_backend dockerbackend
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backend dockerbackend
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mode http
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server dockersocket /var/run/docker.sock
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6
Containers/docker-socket-proxy/healthcheck.sh
Normal file
6
Containers/docker-socket-proxy/healthcheck.sh
Normal file
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@ -0,0 +1,6 @@
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#!/bin/bash
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nc -z "$NEXTCLOUD_HOST" 9000 || exit 0
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if [ "$(wget http://127.0.0.1:2375/v1.41/_ping -qO -)" != "OK" ]; then
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exit 1
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fi
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21
Containers/docker-socket-proxy/start.sh
Normal file
21
Containers/docker-socket-proxy/start.sh
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@ -0,0 +1,21 @@
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#!/bin/sh
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# Only start container if nextcloud is accessible
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while ! nc -z "$NEXTCLOUD_HOST" 9000; do
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echo "Waiting for Nextcloud to start..."
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sleep 5
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done
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set -x
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IPv4_ADDRESS_NC="$(dig nextcloud-aio-nextcloud IN A +short | grep '^[0-9.]\+$' | sort | head -n1)"
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HAPROXYFILE="$(sed "s|NC_IPV4_PLACEHOLDER|$IPv4_ADDRESS_NC|" /haproxy.cfg)"
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echo "$HAPROXYFILE" > /tmp/haproxy.cfg
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IPv6_ADDRESS_NC="$(dig nextcloud-aio-nextcloud AAAA +short | grep '^[0-9a-f:]\+$' | sort | head -n1)"
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HAPROXYFILE="$(sed "s# || { src NC_IPV6_PLACEHOLDER }##g" /tmp/haproxy.cfg)"
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# shellcheck disable=SC2001
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HAPROXYFILE="$(echo "$HAPROXYFILE" | sed "s|NC_IPV6_PLACEHOLDER|$IPv6_ADDRESS_NC|")"
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echo "$HAPROXYFILE" > /tmp/haproxy.cfg
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set +x
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haproxy -f /tmp/haproxy.cfg -db
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@ -661,8 +661,7 @@
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"restart": "unless-stopped",
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"read_only": true,
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"tmpfs": [
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"/run/",
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"/var/lib/haproxy"
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"/tmp"
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]
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}
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]
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