HAProxy refuses to start if starting dataplane as 'program'

[hanserasmus]

Hi all

I am finding my feet with the dataplane API. I have downloaded the latest build from github and followed all the instructions from the documentation. I have converted my config to yaml using the tool provided and it seems all is well, as long as I start the dataplane manually with dataplaneapi -f /etc/haproxy/dataplane.yml. As soon as I add the config in HAProxy to start it via the 'program' declaration in haproxy.cfg, it throws the following error:

Jun 26 10:55:15 haproxy-dev haproxy[12259]: configuration error: the custom reload strategy requires these options to be set: ReloadCmd, RestartCmd
Jun 26 10:55:15 haproxy-dev haproxy[12257]: [NOTICE]   (12257) : haproxy version is 2.4.22-0ubuntu0.22.04.1
Jun 26 10:55:15 haproxy-dev haproxy[12257]: [NOTICE]   (12257) : path to executable is /usr/sbin/haproxy
Jun 26 10:55:15 haproxy-dev haproxy[12257]: [ALERT]    (12257) : Current program 'api' (12259) exited with code 1 (Exit)
Jun 26 10:55:15 haproxy-dev haproxy[12257]: [ALERT]    (12257) : exit-on-failure: killing every processes with SIGTERM
Jun 26 10:55:15 haproxy-dev haproxy[12257]: [ALERT]    (12257) : Current worker #1 (12260) exited with code 143 (Terminated)
Jun 26 10:55:15 haproxy-dev haproxy[12257]: [WARNING]  (12257) : All workers exited. Exiting... (1)
Jun 26 10:55:15 haproxy-dev systemd[1]: haproxy.service: Main process exited, code=exited, status=1/FAILURE

HAProxy config:

global
        log /dev/log    local0
        log /dev/log    local1 notice
        chroot /var/lib/haproxy
        #stats socket /run/haproxy/admin.sock mode 660 level admin expose-fd listeners
        stats socket /var/run/haproxy.sock user haproxy group haproxy mode 660 level admin expose-fd listeners
        stats timeout 30s
        user haproxy
        group haproxy
        daemon
        master-worker
        # Default SSL material locations
        ca-base /etc/ssl/certs
        crt-base /etc/ssl/private

        # See: https://ssl-config.mozilla.org/#server=haproxy&server-version=2.0.3&config=intermediate
        ssl-default-bind-ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384
        ssl-default-bind-ciphersuites TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256
        ssl-default-bind-options ssl-min-ver TLSv1.2 no-tls-tickets

defaults
        log     global
        mode    http
        option  httplog
        option  dontlognull
        timeout connect 5000
        timeout client  50000
        timeout server  50000
        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

program api
    command /usr/local/bin/dataplaneapi -f /etc/haproxy/dataplaneapi.yml
    no option start-on-reload

Dataplane.yml:

config_version: 2
name: haproxy-dev
mode: single
status: ""
dataplaneapi:
  host: 0.0.0.0
  port: 5555
  advertised:
    api_address: ""
    api_port: 0
  scheme:
  - http
  transaction:
    transaction_dir: /tmp/haproxy
  user:
  - name: admin
    insecure: true
    password: adminpwd
haproxy:
  config_file: /etc/haproxy/haproxy.cfg
  haproxy_bin: /usr/sbin/haproxy
  master_worker_mode: true
  reload:
    reload_delay: 5
    reload_cmd: systemctl reload haproxy
    restart_cmd: systemctl restart haproxy
    status_cmd: systemctl status haproxy
    service_name: haproxy.service
    reload_strategy: custom
log:
  log_to: stdout
  log_file: /var/log/dataplaneapi/dataplaneapi.log
  log_level: warning
  log_format: text
  apache_common_log_format: '%h'
  syslog:
    syslog_protocol: tcp
    syslog_tag: dataplaneapi
    syslog_level: debug
    syslog_facility: local0

haproxy -v
HAProxy version 2.4.22-0ubuntu0.22.04.1 2023/03/22 - https://haproxy.org/
Status: long-term supported branch - will stop receiving fixes around Q2 2026.
Known bugs: http://www.haproxy.org/bugs/bugs-2.4.22.html
Running on: Linux 5.15.39-3-pve #2 SMP PVE 5.15.39-3 (Wed, 27 Jul 2022 13:45:39 +0200) x86_64

Any ideas what might be wrong? I have even tried adding " " around the different commands, but it seems as soon as I restart HAProxy service it removes them again.

Any help will be greatly appreciated!
Thank you

[hanserasmus]

I had a mistake in my config in haproxy.cfg.
command /usr/local/bin/dataplaneapi -f /etc/haproxy/dataplaneapi.yml instead of command /usr/local/bin/dataplaneapi -f /etc/haproxy/dataplane.yml