You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
69 lines
1.7 KiB
Bash
69 lines
1.7 KiB
Bash
3 years ago
|
#!/usr/bin/env bash
|
||
|
|
# vim:ts=4:sts=4:sw=4:et
|
||
|
|
#
|
||
|
|
# Author: Hari Sekhon
|
||
|
|
# Date: 2021-06-03 18:11:23 +0100 (Thu, 03 Jun 2021)
|
||
|
|
#
|
||
|
|
# https://github.com/HariSekhon/bash-tools
|
||
|
|
#
|
||
|
|
# License: see accompanying Hari Sekhon LICENSE file
|
||
|
|
#
|
||
|
|
# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
|
||
|
|
#
|
||
|
|
# https://www.linkedin.com/in/HariSekhon
|
||
|
|
#
|
||
|
|
|
||
|
|
set -euo pipefail
|
||
|
|
[ -n "${DEBUG:-}" ] && set -x
|
||
|
|
srcdir="$(dirname "${BASH_SOURCE[0]}")"
|
||
|
|
|
||
|
|
# shellcheck disable=SC1090
|
||
|
|
. "$srcdir/lib/utils.sh"
|
||
|
|
|
||
|
|
# shellcheck disable=SC2034,SC2154
|
||
|
|
usage_description="
|
||
|
|
Curls the current Kubernetes cluster's Nginx Ingress controller's external IP address and fakes the host header
|
||
|
|
|
||
|
|
Useful for debugging Ingress SSL certificates directly to bypass CDN addresses such as Cloudflare
|
||
|
|
|
||
|
|
Prints the curl command inferred as it is used so you can see what you're doing
|
||
|
|
"
|
||
|
|
|
||
|
|
# used by usage() in lib/utils.sh
|
||
|
|
# shellcheck disable=SC2034
|
||
|
|
usage_args="<url> [<curl_options>]"
|
||
|
|
|
||
|
|
help_usage "$@"
|
||
|
|
|
||
|
|
min_args 1 "$@"
|
||
|
|
|
||
|
|
url="$1"
|
||
|
|
shift || :
|
||
|
|
|
||
|
|
if ! [[ "$url" =~ :// ]]; then
|
||
|
|
url="http://$url"
|
||
|
|
fi
|
||
|
|
|
||
|
|
#shopt -s extglob
|
||
|
|
#host="${url#http?(s)://}"
|
||
|
|
#shopt -u extglob
|
||
|
|
|
||
|
|
host="${url#http://}"
|
||
|
|
host="${host#https://}"
|
||
|
|
|
||
|
|
# strip /path
|
||
|
|
host="${host%%[;/]*}"
|
||
|
|
|
||
|
|
# if url prefix doesn't strip successfully, the above line results in host='https:'
|
||
|
|
if [[ "$host" =~ : ]]; then
|
||
|
|
die "Host parse failure from url: '$url', inferred host as '$host'"
|
||
|
|
fi
|
||
|
|
|
||
|
|
# TODO: extend this to detect and return the IPs of other ingress controllers if deployed eg. older nginx-ingress, traefik, haproxy etc.
|
||
|
|
IP="$(kubectl get svc ingress-nginx-controller -n ingress-nginx -o 'jsonpath={.spec.loadBalancerIP}')"
|
||
|
|
|
||
|
|
url="${url/:\/\/$host/://$IP}"
|
||
|
|
|
||
|
|
set -x
|
||
|
|
curl -H "Host: $host" "$url" "$@"
|