digitaldemocratic/dd-sso/docker/haproxy/gen-haproxy-conf.sh

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#!/bin/sh -eu
_help(){
cat <<EOF
USAGE: gen-haproxy-conf.sh waf|no-waf proxy|no-proxy
Generate a DD-compatible HAProxy configuration to stdout.
- The first argument indicates whether or not WAF will be enabled.
waf: enable WAF
no-waf: do not use WAF
- The second argument indicates whether or not the PROXY protocol will
be enabled on ports 8888 (HTTP) and 561 (HTTPS) for the outer layer
(either with WAF or without).
EOF
}
case "${1:-}" in
[wW][aA][fF])
USE_WAF="YES"
;;
[nN][oO]-[wW][aA][fF])
;;
*)
_help >> /dev/stderr
exit 1
;;
esac
case "${2:-}" in
[pP][rR][oO][xX][yY])
USE_PROXY="YES"
;;
[nN][oO]-[pP][rR][oO][xX][yY])
;;
*)
_help >> /dev/stderr
exit 1
;;
esac
PARTS_DIR="haproxy.cnf.parts"
_binds(){
cat "${PARTS_DIR}/bind-direct.cnf"
if [ -n "${USE_PROXY:-}" ]; then
cat "${PARTS_DIR}/bind-proxy.cnf"
fi
}
# Beginning
cat "${PARTS_DIR}/head.cnf"
if [ -n "${USE_WAF:-}" ]; then
# WAF bits
cat "${PARTS_DIR}/defaults-waf.cnf"
cat "${PARTS_DIR}/head-waf.cnf"
_binds
cat "${PARTS_DIR}/tail-waf.cnf"
cat "${PARTS_DIR}/web-head.cnf"
else
# Non-WAF bits
cat "${PARTS_DIR}/defaults-non-waf.cnf"
cat "${PARTS_DIR}/tail-non-waf.cnf"
cat "${PARTS_DIR}/web-head.cnf"
_binds
fi
# bk_web ending
cat "${PARTS_DIR}/web-tail.cnf"
# Application backends
cat "${PARTS_DIR}/backends.cnf"