137 lines
5.2 KiB
Bash
Executable File
137 lines
5.2 KiB
Bash
Executable File
#!/bin/bash
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set -eu -o pipefail
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# This file can be used in Dockerfile
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readonly USER=yellowtent
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readonly USER_DATA_FILE="/root/user_data.img"
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readonly USER_DATA_DIR="/home/yellowtent/data"
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readonly container_files="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/container"
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readonly CONFIG_DIR="/home/yellowtent/configs"
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readonly DATA_DIR="/home/yellowtent/data"
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readonly provider="${1:-generic}"
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sed -e 's/^#NTP=/NTP=0.ubuntu.pool.ntp.org 1.ubuntu.pool.ntp.org 2.ubuntu.pool.ntp.org 3.ubuntu.pool.ntp.org/' -i /etc/systemd/timesyncd.conf
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timedatectl set-ntp 1
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timedatectl set-timezone UTC
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echo "==> Setting up firewall"
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iptables -t filter -N CLOUDRON || true
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iptables -t filter -F CLOUDRON # empty any existing rules
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# NOTE: keep these in sync with src/apps.js validatePortBindings
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# allow ssh, http, https, ping, dns
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iptables -t filter -I CLOUDRON -m state --state RELATED,ESTABLISHED -j ACCEPT
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# caas has ssh on port 202
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if [[ "${provider}" == "caas" ]]; then
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iptables -A CLOUDRON -p tcp -m tcp -m multiport --dports 25,80,202,443,587,993,4190 -j ACCEPT
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else
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iptables -A CLOUDRON -p tcp -m tcp -m multiport --dports 25,80,22,443,587,993,4190 -j ACCEPT
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fi
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iptables -t filter -A CLOUDRON -p icmp --icmp-type echo-request -j ACCEPT
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iptables -t filter -A CLOUDRON -p icmp --icmp-type echo-reply -j ACCEPT
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iptables -t filter -A CLOUDRON -p udp --sport 53 -j ACCEPT
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iptables -t filter -A CLOUDRON -s 172.18.0.0/16 -j ACCEPT # required to accept any connections from apps to our IP:<public port>
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iptables -t filter -A CLOUDRON -i lo -j ACCEPT # required for localhost connections (mysql)
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# log dropped incoming. keep this at the end of all the rules
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iptables -t filter -A CLOUDRON -m limit --limit 2/min -j LOG --log-prefix "IPTables Packet Dropped: " --log-level 7
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iptables -t filter -A CLOUDRON -j DROP
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if ! iptables -t filter -C INPUT -j CLOUDRON 2>/dev/null; then
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iptables -t filter -I INPUT -j CLOUDRON
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fi
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# so it gets restored across reboot
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mkdir -p /etc/iptables && iptables-save > /etc/iptables/rules.v4
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echo "==> Configuring docker"
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cp "${container_files}/docker-cloudron-app.apparmor" /etc/apparmor.d/docker-cloudron-app
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systemctl restart apparmor
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usermod yellowtent -a -G docker
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sed -e 's,^ExecStart=.*$,ExecStart=/usr/bin/docker daemon -H fd:// --log-driver=journald --exec-opt native.cgroupdriver=cgroupfs,' -i /lib/systemd/system/docker.service
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systemctl enable docker
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systemctl restart docker
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# caas has ssh on port 202 and we disable password login
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if [[ "${provider}" == "caas" ]]; then
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# https://stackoverflow.com/questions/4348166/using-with-sed on why ? must be escaped
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sed -e 's/^#\?PermitRootLogin .*/PermitRootLogin without-password/g' \
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-e 's/^#\?PermitEmptyPasswords .*/PermitEmptyPasswords no/g' \
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-e 's/^#\?PasswordAuthentication .*/PasswordAuthentication no/g' \
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-e 's/^#\?Port .*/Port 202/g' \
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-i /etc/ssh/sshd_config
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# required so we can connect to this machine since port 22 is blocked by iptables by now
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systemctl reload sshd
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fi
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echo "==> Setup btrfs data"
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if ! grep -q loop.ko /lib/modules/`uname -r`/modules.builtin; then
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# on scaleway loop is not built-in
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echo "loop" >> /etc/modules
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modprobe loop
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fi
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if [[ ! -d "${USER_DATA_DIR}" ]]; then
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truncate -s "8192m" "${USER_DATA_FILE}" # 8gb start (this will get resized dynamically by cloudron-system-setup.service)
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mkfs.btrfs -L UserDataHome "${USER_DATA_FILE}"
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mkdir -p "${USER_DATA_DIR}"
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mount -t btrfs -o loop,nosuid "${USER_DATA_FILE}" ${USER_DATA_DIR}
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fi
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echo "==> Configuring journald"
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sed -e "s/^#SystemMaxUse=.*$/SystemMaxUse=100M/" \
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-e "s/^#ForwardToSyslog=.*$/ForwardToSyslog=no/" \
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-i /etc/systemd/journald.conf
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# When rotating logs, systemd kills journald too soon sometimes
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# See https://github.com/systemd/systemd/issues/1353 (this is upstream default)
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sed -e "s/^WatchdogSec=.*$/WatchdogSec=3min/" \
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-i /lib/systemd/system/systemd-journald.service
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# Give user access to system logs
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usermod -a -G systemd-journal yellowtent
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mkdir -p /var/log/journal # in some images, this directory is not created making system log to /run/systemd instead
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chown root:systemd-journal /var/log/journal
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systemctl restart systemd-journald
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setfacl -n -m u:yellowtent:r /var/log/journal/*/system.journal
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echo "==> Creating config directory"
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rm -rf "${CONFIG_DIR}" && mkdir "${CONFIG_DIR}"
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chown yellowtent:yellowtent "${CONFIG_DIR}"
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echo "==> Adding systemd services"
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cp -r "${container_files}/systemd/." /etc/systemd/system/
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systemctl daemon-reload
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systemctl enable cloudron.target
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systemctl enable iptables-restore
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systemctl enable cloudron-system-setup
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rm -rf /etc/collectd
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ln -sfF "${DATA_DIR}/collectd" /etc/collectd
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systemctl restart collectd
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echo "==> Configuring system"
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rm -f /etc/sudoers.d/yellowtent
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cp "${container_files}/sudoers" /etc/sudoers.d/yellowtent
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# For logrotate
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systemctl enable cron
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# DO uses Google nameservers by default. This causes RBL queries to fail (host 2.0.0.127.zen.spamhaus.org)
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# We do not use dnsmasq because it is not a recursive resolver and defaults to the value in the interfaces file (which is Google DNS!)
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systemctl enable unbound
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# link nginx config to system config
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unlink /etc/nginx 2>/dev/null || rm -rf /etc/nginx
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ln -s "${DATA_DIR}/nginx" /etc/nginx
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cp "${container_files}/mysql.cnf" /etc/mysql/mysql.cnf
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