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post_install() { setcap 'cap_net_bind_service=+ep' /usr/local/bin/caddy getent passwd www-data || useradd --system -s /usr/bin/nologin -d / -U www-data mkdir -p /etc/ssl/caddy chmod 770 /etc/ssl/caddy chown www-data:www-data /etc/ssl/caddy } post_upgrade() { post_install }