mirror of
https://github.com/zulip/zulip.git
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138 lines
3.0 KiB
Bash
Executable File
138 lines
3.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -e
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usage() {
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cat <<EOF >&2
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Usage: $0 --email=admin@example.com [--method={webroot|standalone}] \
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hostname.example.com [another.example.com]
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EOF
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exit 1
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}
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if [ "$EUID" -ne 0 ]; then
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echo "Error: This script must be run as root" >&2
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exit 1
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fi
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method=webroot
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args="$(getopt -o '' --long help,email:,method:,skip-symlink,agree-tos -n "$0" -- "$@")"
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eval "set -- $args"
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agree_tos=()
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while true; do
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case "$1" in
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--email)
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EMAIL="$2"
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shift
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shift
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;;
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--method)
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method="$2"
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shift
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shift
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;;
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--skip-symlink)
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skip_symlink=1
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shift
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;;
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--agree-tos)
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agree_tos=(--agree-tos)
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shift
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;;
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--help)
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show_help=1
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shift
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;;
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--)
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shift
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break
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;;
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esac
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done
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# Parse the remaining arguments as Subject Alternative Names to pass to certbot
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HOSTNAMES=()
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for arg; do
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HOSTNAMES+=(-d "$arg")
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done
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DOMAIN=$1
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if [ -n "$show_help" ]; then
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usage
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fi
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if [ -z "$DOMAIN" ] || [ -z "$EMAIL" ]; then
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usage
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fi
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case "$method" in
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standalone)
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method_args=(--standalone --no-directory-hooks)
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;;
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webroot)
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method_args=(--webroot '--webroot-path=/var/lib/zulip/certbot-webroot/')
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;;
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*)
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usage
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;;
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esac
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# Check for a supported OS release.
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if [ -f /etc/os-release ]; then
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os_info="$(
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. /etc/os-release
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printf '%s\n' "$ID" "$ID_LIKE"
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)"
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{
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read -r os_id
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read -r os_id_like || true
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} <<<"$os_info"
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fi
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set -x
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case " $os_id $os_id_like " in
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*' debian '*)
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apt-get update
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apt-get install -y certbot
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;;
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*' rhel '*)
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yum install -y certbot
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;;
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esac
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# We don't use --no-interactive, because certbot needs to ask the user
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# to agree to the Let's Encrypt Subscriber Agreement (aka ToS).
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# Passing --force-interactive suppresses a warning, but also brings up
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# an annoying prompt we stifle with --no-eff-email.
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certbot certonly "${method_args[@]}" \
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"${HOSTNAMES[@]}" -m "$EMAIL" \
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"${agree_tos[@]}" \
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--force-interactive --no-eff-email
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symlink_with_backup() {
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if [ -e "$2" ]; then
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# If the user is setting up our automatic certbot-management on a
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# system that already has certs for Zulip, use some extra caution
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# to keep the old certs available.
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mv -f --backup=numbered "$2" "$2".setup-certbot || true
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fi
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ln -nsf "$1" "$2"
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}
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if [ -z "$skip_symlink" ]; then
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CERT_DIR=/etc/letsencrypt/live/"$DOMAIN"
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symlink_with_backup "$CERT_DIR"/privkey.pem /etc/ssl/private/zulip.key
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symlink_with_backup "$CERT_DIR"/fullchain.pem /etc/ssl/certs/zulip.combined-chain.crt
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fi
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# "certbot certonly" does not run deploy hooks, so reload nginx if
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# need be to pick up the new certificate.
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case "$method" in
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webroot)
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service nginx reload
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;;
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esac
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echo "Certbot SSL certificate configuration succeeded."
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