[Unit]
Description=Nextcloud Application - Upgrade
Documentation=https://hub.docker.com/_/nextcloud/
After=network.target nextcloud-redis.service postgresql-server.service
Before=nextcloud-app.service
Requires=nextcloud-redis.service postgresql-server.service

# Only start if Nextcloud has been configured
ConditionPathExists=/etc/quadlets/nextcloud/config.env
# and initialized (config.php exists)
ConditionPathExists=/var/lib/virtiofs/data/nextcloud/config/config.php

# Start/stop this unit when the target is started/stopped
PartOf=nextcloud.target

[Container]
ContainerName=nextcloud-upgrade-to-${NEXTCLOUD_MAJOR}-job
Image=docker.io/library/nextcloud:${NEXTCLOUD_MAJOR}-fpm-alpine

# No need for root privileges
User=www-data
Group=www-data

# UID/GID mapping to map the www-data (82) user inside the container to arbitrary user 10008 / group 10000 on the host
UIDMap=0:1000000:65535
UIDMap=+82:10008:1
GIDMap=0:1000000:65535
GIDMap=+82:10000:1

# Network configuration
Network=host

# Environment variables from config
EnvironmentFile=/etc/quadlets/nextcloud/config.env

# This is specific to the upgrade container
Environment=NEXTCLOUD_UPDATE=1
Exec=/bin/true
Volume=/etc/quadlets/nextcloud/custom-pre.sh:/docker-entrypoint-hooks.d/pre-upgrade/custom.sh:z,ro
Volume=/etc/quadlets/nextcloud/custom-post.sh:/docker-entrypoint-hooks.d/post-upgrade/custom.sh:z,ro

# Volume mounts
Volume=/var/lib/virtiofs/data/nextcloud:/var/www/html:z
Volume=/etc/quadlets/nextcloud/www.conf:/usr/local/etc/php-fpm.d/www.conf:Z
Volume=/run/quadlets/nextcloud/redis-session.ini:/usr/local/etc/php/conf.d/redis-session.ini:Z

[Service]
Restart=no
TimeoutStartSec=600

# These environment variables are sourced to be used by systemd in the Exec* commands
EnvironmentFile=/etc/quadlets/nextcloud/config.env

# This container is a job - run once to completion
Type=oneshot

# Wait for PostgreSQL to be ready
ExecStartPre=/bin/sh -c 'exec 2>/dev/null; for try in $(seq 0 12); do if ! /bin/true 5<> /dev/tcp/127.0.0.1/5432; then echo "Waiting for PostgreSQL to be available..."; sleep 5; else exit 0; fi; done; exit 1'

# Wait for Redis to be ready
ExecStartPre=/bin/sh -c 'exec 2>/dev/null; for try in $(seq 0 12); do if ! /bin/true 5<> /dev/tcp/127.0.0.1/6379; then echo "Waiting for Redis to be available..."; sleep 5; else exit 0; fi; done; exit 1'

[Install]
WantedBy=nextcloud.target