Add optional Dataplane API support

[DBezemer]

https://github.com/haproxytech/dataplaneapi

[izzyleung]

Yeah, I don't think bundling dataplaneapi inside the HAProxy RPM is a good idea.

In fact, we can find pre-built RPM files in their release page: https://github.com/haproxytech/dataplaneapi/releases/tag/v3.2.7

I can verify that by installing pre-built HAProxy RPM files, we can just install the RPM file provided:

$ podman run -it --rm -v $PWD:/root -w /root --name al2023 amazonlinux:2023 bash
bash-5.2# yum install -y openssl rsyslog shadow-utils systemd pcre wget
Amazon Linux 2023 repository                                                                                                                  12 MB/s |  50 MB     00:04
...
Installed:
  cracklib-2.9.6-27.amzn2023.0.2.aarch64                       cryptsetup-libs-2.6.1-1.amzn2023.0.1.aarch64           dbus-1:1.12.28-1.amzn2023.0.1.aarch64
  dbus-broker-32-1.amzn2023.0.2.aarch64                        dbus-common-1:1.12.28-1.amzn2023.0.1.noarch            device-mapper-1.02.185-1.amzn2023.0.5.aarch64
  device-mapper-libs-1.02.185-1.amzn2023.0.5.aarch64           diffutils-3.8-1.amzn2023.0.2.aarch64                   gnutls-3.8.3-8.amzn2023.0.1.aarch64
  gzip-1.12-1.amzn2023.0.1.aarch64                             kmod-libs-29-2.amzn2023.0.5.aarch64                    libargon2-20171227-9.amzn2023.0.2.aarch64
  libdb-5.3.28-49.amzn2023.0.2.aarch64                         libeconf-0.4.0-1.amzn2023.0.3.aarch64                  libestr-0.1.11-1.amzn2023.0.2.aarch64
  libfastjson-0.99.9-1.amzn2023.0.3.aarch64                    libfdisk-2.37.4-1.amzn2023.0.4.aarch64                 libmetalink-0.1.3-14.amzn2023.0.2.aarch64
  libpwquality-1.4.4-6.amzn2023.0.2.aarch64                    libseccomp-2.5.3-1.amzn2023.0.2.aarch64                libsemanage-3.4-5.amzn2023.0.2.aarch64
  libutempter-1.2.1-4.amzn2023.0.2.aarch64                     libxkbcommon-1.6.0-2.amzn2023.0.1.aarch64              logrotate-3.20.1-2.amzn2023.0.3.aarch64
  nettle-3.10.1-1.amzn2023.0.1.aarch64                         openssl-1:3.2.2-1.amzn2023.0.2.aarch64                 pam-1.5.1-8.amzn2023.0.7.aarch64
  pcre-8.44-3.amzn2023.1.0.3.aarch64                           qrencode-libs-4.1.1-2.amzn2023.0.2.aarch64             rsyslog-8.2204.0-3.amzn2023.0.4.aarch64
  rsyslog-logrotate-8.2204.0-3.amzn2023.0.4.aarch64            shadow-utils-2:4.9-12.amzn2023.0.4.aarch64             systemd-252.23-10.amzn2023.aarch64
  systemd-libs-252.23-10.amzn2023.aarch64                      systemd-networkd-252.23-10.amzn2023.aarch64            systemd-pam-252.23-10.amzn2023.aarch64
  systemd-resolved-252.23-10.amzn2023.aarch64                  util-linux-2.37.4-1.amzn2023.0.4.aarch64               util-linux-core-2.37.4-1.amzn2023.0.4.aarch64
  wget-1.21.3-1.amzn2023.0.4.aarch64                           xkeyboard-config-2.41-1.amzn2023.0.1.noarch

Complete!
bash-5.2# rpm -i rpmbuild/RPMS/aarch64/haproxy-3.0.14-1.amzn2023.aarch64.rpm
System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to connect to bus: Host is down
warning: %post(haproxy-3.0.14-1.amzn2023.aarch64) scriptlet failed, exit status 1
bash-5.2# haproxy -vv
HAProxy version 3.0.14-6759115 2025/12/22 - https://haproxy.org/
Status: long-term supported branch - will stop receiving fixes around Q2 2029.
Known bugs: http://www.haproxy.org/bugs/bugs-3.0.14.html
Running on: Linux 6.17.7-300.fc43.aarch64 #1 SMP PREEMPT_DYNAMIC Sun Nov  2 15:33:04 UTC 2025 aarch64
Build options :
  TARGET  = linux-glibc
  CC      = cc
  CFLAGS  = -O2 -g -fwrapv -fvect-cost-model=very-cheap
  OPTIONS = USE_THREAD=1 USE_LINUX_TPROXY=1 USE_OPENSSL=1 USE_ZLIB=1 USE_TFO=1 USE_NS=1 USE_SYSTEMD=1 USE_PCRE=1 USE_PCRE_JIT=1
  DEBUG   =

Feature list : -51DEGREES +ACCEPT4 +BACKTRACE -CLOSEFROM +CPU_AFFINITY +CRYPT_H -DEVICEATLAS +DL -ENGINE +EPOLL -EVPORTS +GETADDRINFO -KQUEUE -LIBATOMIC +LIBCRYPT +LINUX_CAP +LINUX_SPLICE +LINUX_TPROXY -LUA -MATH -MEMORY_PROFILING +NETFILTER +NS -OBSOLETE_LINKER +OPENSSL -OPENSSL_AWSLC -OPENSSL_WOLFSSL -OT +PCRE -PCRE2 -PCRE2_JIT +PCRE_JIT +POLL +PRCTL -PROCCTL -PROMEX -PTHREAD_EMULATION -QUIC -QUIC_OPENSSL_COMPAT +RT +SHM_OPEN -SLZ +SSL -STATIC_PCRE -STATIC_PCRE2 +SYSTEMD +TFO +THREAD +THREAD_DUMP +TPROXY -WURFL +ZLIB

Default settings :
  bufsize = 16384, maxrewrite = 1024, maxpollevents = 200

Built with multi-threading support (MAX_TGROUPS=16, MAX_THREADS=256, default=12).
Built with OpenSSL version : OpenSSL 3.2.2 4 Jun 2024
Running on OpenSSL version : OpenSSL 3.2.2 4 Jun 2024
OpenSSL library supports TLS extensions : yes
OpenSSL library supports SNI : yes
OpenSSL library supports : TLSv1.0 TLSv1.1 TLSv1.2 TLSv1.3
OpenSSL providers loaded : default
Built with network namespace support.
Built with zlib version : 1.2.11
Running on zlib version : 1.2.11
Compression algorithms supported : identity("identity"), deflate("deflate"), raw-deflate("deflate"), gzip("gzip")
Built with transparent proxy support using: IP_TRANSPARENT IPV6_TRANSPARENT IP_FREEBIND
Built with PCRE version : 8.44 2020-02-12
Running on PCRE version : 8.44 2020-02-12
PCRE library supports JIT : yes
Encrypted password support via crypt(3): yes
Built with gcc compiler version 11.5.0 20240719 (Red Hat 11.5.0-5)

Available polling systems :
      epoll : pref=300,  test result OK
       poll : pref=200,  test result OK
     select : pref=150,  test result OK
Total: 3 (3 usable), will use epoll.

Available multiplexer protocols :
(protocols marked as <default> cannot be specified using 'proto' keyword)
         h2 : mode=HTTP  side=FE|BE  mux=H2    flags=HTX|HOL_RISK|NO_UPG
         h1 : mode=HTTP  side=FE|BE  mux=H1    flags=HTX|NO_UPG
  <default> : mode=HTTP  side=FE|BE  mux=H1    flags=HTX
       fcgi : mode=HTTP  side=BE     mux=FCGI  flags=HTX|HOL_RISK|NO_UPG
       none : mode=TCP   side=FE|BE  mux=PASS  flags=NO_UPG
  <default> : mode=TCP   side=FE|BE  mux=PASS  flags=

Available services : none

Available filters :
	[BWLIM] bwlim-in
	[BWLIM] bwlim-out
	[CACHE] cache
	[COMP] compression
	[FCGI] fcgi-app
	[SPOE] spoe
	[TRACE] trace

bash-5.2#
bash-5.2# cd /tmp
bash-5.2# wget https://github.com/haproxytech/dataplaneapi/releases/download/v3.2.7/dataplaneapi_3.2.7_linux_arm64.rpm
--2025-12-27 05:34:45--  https://github.com/haproxytech/dataplaneapi/releases/download/v3.2.7/dataplaneapi_3.2.7_linux_arm64.rpm
Resolving github.com (github.com)... 4.225.11.194
Connecting to github.com (github.com)|4.225.11.194|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://release-assets.githubusercontent.com/github-production-release-asset/186656753/353494c6-b333-4e99-a225-7ce2da3cd211?sp=r&sv=2018-11-09&sr=b&spr=https&se=2025-12-27T06%3A22%3A31Z&rscd=attachment%3B+filename%3Ddataplaneapi_3.2.7_linux_arm64.rpm&rsct=application%2Foctet-stream&skoid=96c2d410-5711-43a1-aedd-ab1947aa7ab0&sktid=398a6654-997b-47e9-b12b-9515b896b4de&skt=2025-12-27T05%3A21%3A35Z&ske=2025-12-27T06%3A22%3A31Z&sks=b&skv=2018-11-09&sig=uBKha6rVnnicxWmH0E6L4SLn1RjO3%2FbzELLamXdy6PY%3D&jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmVsZWFzZS1hc3NldHMuZ2l0aHVidXNlcmNvbnRlbnQuY29tIiwia2V5Ijoia2V5MSIsImV4cCI6MTc2NjgxNTQ4NSwibmJmIjoxNzY2ODEzNjg1LCJwYXRoIjoicmVsZWFzZWFzc2V0cHJvZHVjdGlvbi5ibG9iLmNvcmUud2luZG93cy5uZXQifQ.U9yo1SrwYVoVEV3X--ViHpgCMJyLtuBsFmKdw6pjEFw&response-content-disposition=attachment%3B%20filename%3Ddataplaneapi_3.2.7_linux_arm64.rpm&response-content-type=application%2Foctet-stream [following]
--2025-12-27 05:34:46--  https://release-assets.githubusercontent.com/github-production-release-asset/186656753/353494c6-b333-4e99-a225-7ce2da3cd211?sp=r&sv=2018-11-09&sr=b&spr=https&se=2025-12-27T06%3A22%3A31Z&rscd=attachment%3B+filename%3Ddataplaneapi_3.2.7_linux_arm64.rpm&rsct=application%2Foctet-stream&skoid=96c2d410-5711-43a1-aedd-ab1947aa7ab0&sktid=398a6654-997b-47e9-b12b-9515b896b4de&skt=2025-12-27T05%3A21%3A35Z&ske=2025-12-27T06%3A22%3A31Z&sks=b&skv=2018-11-09&sig=uBKha6rVnnicxWmH0E6L4SLn1RjO3%2FbzELLamXdy6PY%3D&jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmVsZWFzZS1hc3NldHMuZ2l0aHVidXNlcmNvbnRlbnQuY29tIiwia2V5Ijoia2V5MSIsImV4cCI6MTc2NjgxNTQ4NSwibmJmIjoxNzY2ODEzNjg1LCJwYXRoIjoicmVsZWFzZWFzc2V0cHJvZHVjdGlvbi5ibG9iLmNvcmUud2luZG93cy5uZXQifQ.U9yo1SrwYVoVEV3X--ViHpgCMJyLtuBsFmKdw6pjEFw&response-content-disposition=attachment%3B%20filename%3Ddataplaneapi_3.2.7_linux_arm64.rpm&response-content-type=application%2Foctet-stream
Resolving release-assets.githubusercontent.com (release-assets.githubusercontent.com)... 185.199.109.133, 185.199.110.133, 185.199.111.133, ...
Connecting to release-assets.githubusercontent.com (release-assets.githubusercontent.com)|185.199.109.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 11127512 (11M) [application/octet-stream]
Saving to: 'dataplaneapi_3.2.7_linux_arm64.rpm'

dataplaneapi_3.2.7_linux_arm64.rpm          100%[========================================================================================>]  10.61M  8.56MB/s    in 1.2s

2025-12-27 05:34:47 (8.56 MB/s) - 'dataplaneapi_3.2.7_linux_arm64.rpm' saved [11127512/11127512]

bash-5.2#
bash-5.2# rpm -i dataplaneapi_3.2.7_linux_arm64.rpm
System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to connect to bus: Host is down
Created symlink /etc/systemd/system/multi-user.target.wants/dataplaneapi.service → /etc/systemd/system/dataplaneapi.service.
bash-5.2# dataplaneapi --version
2025/12/27 05:34:59 maxprocs: Leaving GOMAXPROCS=12: CPU quota undefined
2025/12/27 05:34:59 INFO memory is not limited, skipping package=github.com/KimMachineGun/automemlimit/memlimit
HAProxy Data Plane API v3.2.7 3f1e3ef3

Build from: https://github.com/haproxytech/dataplaneapi
Build date: 2025-12-02T14:18:17Z

[DBezemer]

the idea is to add it as a separate RPM with service files etc to match this repo and have some basic interopt/version alignment between the two packages