I know that I can reload haproxy from a shell command (I use service haproxy reload
).
I also am using the stats socket to enable and disable servers when doing maintenance on them. I also have worked with the stats webserver, although it's disabled at the moment.
Is it possible to use the stats socket to force a reload, too? (The use case is to let a person without admin privs on the server add a new https certificate to the network folder where I am storing them, and use reload to make sure haproxy sees it.)
My config, sanitized:
global
log /dev/log local0
log /dev/log local1 notice
chroot /var/lib/haproxy
stats socket /run/haproxy/admin.sock mode 660 level admin
stats socket ipv4@172.16.63.123:9999 level admin
stats timeout 30s
user haproxy
group haproxy
tune.ssl.default-dh-param 2048
daemon
# Default SSL material locations
ca-base /etc/ssl/certs
crt-base /etc/ssl/private
# Default ciphers to use on SSL-enabled listening sockets.
# For more information, see ciphers(1SSL). This list is from:
# https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
# ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5:!DSS
ssl-default-bind-ciphers ECDHE+aRSA+AES256+GCM+SHA384:ECDHE+aRSA+AES128+GCM+SHA256:ECDHE+aRSA+AES256+SHA384:ECDHE+aRSA+AES128+SHA256:ECDHE+aRSA+RC4+SHA:ECDHE+aRSA+AES256+SHA:ECDHE+aRSA+AES128+SHA:AES256+GCM+SHA384:AES128+GCM+SHA256:AES128+SHA256:AES256+SHA256:DHE+aRSA+AES128+SHA:RC4+SHA:HIGH:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS
ssl-default-bind-options no-sslv3
defaults
log global
mode http
option httplog
option dontlognull
timeout connect 50000
timeout client 500000
timeout server 500000
errorfile 400 /etc/haproxy/errors/400.http
errorfile 403 /etc/haproxy/errors/403.http
errorfile 408 /etc/haproxy/errors/408.http
errorfile 500 /etc/haproxy/errors/500.http
errorfile 502 /etc/haproxy/errors/502.http
errorfile 503 /etc/haproxy/errors/503.http
errorfile 504 /etc/haproxy/errors/504.http
frontend http-in
acl host_onedomain hdr(host) -i -m end onedomain.com
;;; additional, similar domain acls omitted
acl ip_172_16_55_96 dst 172.16.55.96
http-request set-header HTTPS ON if { ssl_fc }
bind *:80
bind *:443 ssl crt /media/windowsshare/winserver/ssl/pem/
use_backend staging if host_staging
use_backend production if host_production
default_backend staging
backend staging
server SERVER1 172.16.55.91:82 maxconn 64
server SERVER2 172.16.55.92:82 maxconn 64
backend production
server SERVER1 172.16.55.91:81 maxconn 64
server SERVER2 172.16.55.92:80 maxconn 64
listen stats *:1936
stats enable
stats uri /
stats hide-version
stats auth sysadmin:password
stats admin if TRUE
Best Answer
In a word, no.
You can't reload the whole process from the socket, and all details about using the admin sockets are listed under section 9.2 Unix Socket commands of the management docs.