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Code Block

global
    log 127.0.0.1 local2
    chroot /var/lib/haproxy
    stats socket /var/lib/haproxy/stats mode 660 level admin
    user haproxy
    group haproxy
    daemon

    ca-base /etc/pki/tls/certs
    crt-base /etc/pki/tls/private

    ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:RSA+AESGCM:RSA+AES:!aNULL:!MD5:!DSS
    ssl-default-bind-options no-sslv3
    maxconn 2048
    tune.ssl.default-dh-param 2048

defaults
    log     global
    mode    http
    option  forwardfor
    # Do not use "option  http-server-close", it causes S3 PUT incompatibility with some clients including FileFly!
    option  httplog
    option  dontlognull
    timeout connect 5000
    timeout client  50000
    # This timeout should always be larger than gateway.cfg's [storage_cluster] indexerSocketTimeout
    # and large enough to not timeout an S3 CopyObject or an SCSP COPY in a versioned bucket.
    timeout server  130000

frontend www-http
    bind 0.0.0.0:80
    http-request set-header X-Forwarded-Proto http
    http-request set-header X-Forwarded-Port 80
    default_backend www-backend-scsp
    acl iss3 hdr_sub(Authorization) AWS
    acl iss3 url_reg [?&](AWSAccessKeyId|X-Amz-Credential)=
    use_backend www-backend-s3 if iss3

frontend www-https
    bind 0.0.0.0:443 ssl crt /etc/pki/tls/certs/YOUR_DOMAIN.pem
    http-request set-header X-Forwarded-Proto https
    http-request set-header X-Forwarded-Port 443
    default_backend www-backend-scsp
    acl iss3 hdr_sub(Authorization) AWS
    acl iss3 url_reg [?&](AWSAccessKeyId|X-Amz-Credential)=
    use_backend www-backend-s3 if iss3

frontend www-https-svc
    bind 0.0.0.0:91 ssl crt /etc/pki/tls/certs/YOUR_DOMAIN.pem
    http-request set-header X-Forwarded-Proto https
    http-request set-header X-Forwarded-Port 91
    default_backend www-backend-svc

backend www-backend-scsp
    #redirectbalance schemeleastconn
https if !{ ssl_fc }# On HAPROXY <--- Uncomment this line if you want to force HTTPS
    server gw1 YOUR_GATEWAY1_IP:8080 check
    server gw2 YOUR_GATEWAY2_IP:8080 check

backend www-backend-s3 2.2
    option httpchk HEAD /_admin/manage/version HTTP/1.1\r\nHost:\ haproxy-healthcheck
    http-check expect status 200
    # On HAPROXY > 2.2
    #redirect#option schemehttpchk
https if !{ ssl_fc }  #http-check connect
  <--- Uncomment this#http-check linesend ifmeth youHEAD want to force HTTPS
    server gw1 YOUR_GATEWAY1_IP:8090 check
    server gw2 YOUR_GATEWAY2_IP:8080 check

backend www-backend-svc
    # This rule rewrites CORS header to add the port number used on frontend
    http-request replace-value Access-Control-Allow-Origin (.*) \1:91
    #redirect scheme https if !{ ssl_fc } <--- Uncomment this line if you want to force HTTPS
    server gw1 YOUR_GATEWAY1_IP:8091 check
    server gw2 YOUR_GATEWAY2_IP:8080 check

Start HAProxy:
systemctl restart haproxy

Note

If when restarting HAProxy this error is thrown “Starting frontend www-https-svc: cannot bind socket [0.0.0.0:91]”, either disable SELinux or run this command:

setsebool -P haproxy_connect_any=1

Create a Self-Signed SSL Certificate

...

uri /_admin/manage/version ver HTTP/1.1 hdr Host haproxy-healthcheck
    #http-check expect status 200
  
    #redirect scheme https if !{ ssl_fc }   <--- Uncomment this line if you want to force HTTPS
    server gw1 YOUR_GATEWAY1_IP:8080 check inter 10s fall 3 rise 2
    server gw2 YOUR_GATEWAY2_IP:8080 check inter 10s fall 3 rise 2

backend www-backend-s3
    balance leastconn
    # On HAPROXY < 2.2
    option httpchk HEAD / HTTP/1.1\r\nHost:\ haproxy-healthcheck
    http-check expect status 403
    # On HAPROXY > 2.2
    #option httpchk
    #http-check connect
    #http-check send meth HEAD uri / ver HTTP/1.1 hdr Host haproxy-healthcheck
    #http-check expect status 403
    
    #redirect scheme https if !{ ssl_fc }    <--- Uncomment this line if you want to force HTTPS
    server gw1 YOUR_GATEWAY1_IP:8090 check inter 10s fall 3 rise 2
    server gw2 YOUR_GATEWAY2_IP:8090 check inter 10s fall 3 rise 2

backend www-backend-svc
    balance leastconn
    # On HAPROXY < 2.2
    option httpchk HEAD / HTTP/1.1\r\nHost:\ haproxy-healthcheck
    http-check expect status 401
    # On HAPROXY > 2.2
    #option httpchk
    #http-check connect
    #http-check send meth HEAD uri / ver HTTP/1.1 hdr Host haproxy-healthcheck
    #http-check expect status 401
    
    # This rule rewrites CORS header to add the port number used on frontend
    http-request replace-value Access-Control-Allow-Origin (.*) \1:91
    #redirect scheme https if !{ ssl_fc } <--- Uncomment this line if you want to force HTTPS
    server gw1 YOUR_GATEWAY1_IP:8091 check inter 10s fall 3 rise 2
    server gw2 YOUR_GATEWAY2_IP:8091 check inter 10s fall 3 rise 2

Start HAProxy:
systemctl restart haproxy

Note

If when restarting HAProxy this error is thrown “Starting frontend www-https-svc: cannot bind socket [0.0.0.0:91]”, either disable SELinux or run this command:

setsebool -P haproxy_connect_any=1

Loadbalancing healthcheck

If you have 2 or more gateways, it is recommended to use the http-check directives to verify the service is live.

Each protocol requires different healthcheck configuration.

SCSP Protocol

HAPROXY < 2.2

Code Block
option httpchk HEAD /_admin/manage/version HTTP/1.1\r\nHost:\ haproxy-healthcheck http-check expect status 200

HAPROXY > 2.2

Code Block
option httpchk http-check connect http-check send meth HEAD uri /_admin/manage/version ver HTTP/1.1 hdr Host haproxy-healthcheck http-check expect status 200

S3 Protocol

HAPROXY < 2.2

Code Block
option httpchk HEAD / HTTP/1.1\r\nHost:\ haproxy-healthcheck http-check expect status 403

HAPROXY > 2.2

Code Block
option httpchk http-check connect http-check send meth HEAD uri / ver HTTP/1.1 hdr Host haproxy-healthcheck http-check expect status 403

Admin Protocol ( cluster_admin )

HAPROXY < 2.2

Code Block
option httpchk HEAD / HTTP/1.1\r\nHost:\ haproxy-healthcheck http-check expect status 401

HAPROXY > 2.2

Code Block
option httpchk http-check connect http-check send meth HEAD uri / ver HTTP/1.1 hdr Host haproxy-healthcheck http-check expect status 401

Backend section for all protocols

Code Block
server gw1 YOUR_GATEWAY1_IP:8090 check inter 10s fall 3 rise 2 server gw2 YOUR_GATEWAY2_IP:8090 check inter 10s fall 3 rise 2

Example Logging with SCSP health check

In the following example I ran a while loop, to read an object every second… and while doing it shutdown 1 of the 2 gateways waited a few seconds then started it back up.

Code Block

Mar 15 08:01:54 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45870 [15/Mar/2024:08:01:54.044] www-http swarm-scsp/gw1 0/0/0/20/29 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.0|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:01:55 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45876 [15/Mar/2024:08:01:55.095] www-http swarm-scsp/gw2 0/0/0/20/28 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.a|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:01:56 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45880 [15/Mar/2024:08:01:56.144] www-http swarm-scsp/gw1 0/0/0/16/22 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.0|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:01:57 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45890 [15/Mar/2024:08:01:57.187] www-http swarm-scsp/gw2 0/0/0/20/29 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.a|} "GET /test14/test2 HTTP/1.1"

**** Here I stop gw1 service...  which produces 503's until haproxy detects it

Mar 15 08:02:01 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45894 [15/Mar/2024:08:01:58.236] www-http swarm-scsp/gw1 0/0/-1/-1/3003 503 216 - - SC-- 1/1/0/0/3 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:02:02 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45908 [15/Mar/2024:08:02:02.260] www-http swarm-scsp/gw2 0/0/0/20/29 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.a|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:02:06 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45914 [15/Mar/2024:08:02:03.310] www-http swarm-scsp/gw1 0/0/-1/-1/3006 503 216 - - SC-- 1/1/0/0/3 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:02:07 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45928 [15/Mar/2024:08:02:07.338] www-http swarm-scsp/gw2 0/0/0/19/27 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.a|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:02:11 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45932 [15/Mar/2024:08:02:08.387] www-http swarm-scsp/gw1 0/0/-1/-1/3006 503 216 - - SC-- 1/1/0/0/3 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:02:12 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45946 [15/Mar/2024:08:02:12.415] www-http swarm-scsp/gw2 0/0/0/14/21 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.a|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:02:16 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45954 [15/Mar/2024:08:02:13.456] www-http swarm-scsp/gw1 0/0/-1/-1/3006 503 216 - - SC-- 1/1/0/0/3 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {|} "GET /test14/test2 HTTP/1.1"

**** HAproxy figures out gw1 is down

Mar 15 08:02:16 cert-prod-haproxy haproxy[1411077]: [WARNING]  (1411077) : Server swarm-scsp/gw1 is DOWN, reason: Layer4 connection problem, info: "Connection refused", check duration: 0ms. 1 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.
Mar 15 08:02:16 cert-prod-haproxy haproxy[1411077]: Server swarm-scsp/gw1 is DOWN, reason: Layer4 connection problem, info: "Connection refused", check duration: 0ms. 1 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.
Mar 15 08:02:16 cert-prod-haproxy haproxy[1411077]: Server swarm-scsp/gw1 is DOWN, reason: Layer4 connection problem, info: "Connection refused", check duration: 0ms. 1 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.

**** At this point all calls go to gw2 only

Mar 15 08:02:17 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45968 [15/Mar/2024:08:02:17.483] www-http swarm-scsp/gw2 0/0/0/19/28 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.a|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:02:18 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45974 [15/Mar/2024:08:02:18.532] www-http swarm-scsp/gw2 0/0/0/18/24 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.a|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:02:19 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45978 [15/Mar/2024:08:02:19.577] www-http swarm-scsp/gw2 0/0/0/17/24 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.a|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:02:20 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45984 [15/Mar/2024:08:02:20.623] www-http swarm-scsp/gw2 0/0/0/16/23 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.a|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:02:21 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:45988 [15/Mar/2024:08:02:21.667] www-http swarm-scsp/gw2 0/0/0/16/25 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.a|} "GET /test14/test2 HTTP/1.1"

*** Here I start gw1 back up, and Haproxy detects it.

Mar 15 08:02:36 cert-prod-haproxy haproxy[1411077]: [WARNING]  (1411077) : Server swarm-scsp/gw1 is UP, reason: Layer7 check passed, code: 200, check duration: 18ms. 2 active and 0 backup servers online. 0 sessions requeued, 0 total in queue.
Mar 15 08:02:36 cert-prod-haproxy haproxy[1411077]: Server swarm-scsp/gw1 is UP, reason: Layer7 check passed, code: 200, check duration: 18ms. 2 active and 0 backup servers online. 0 sessions requeued, 0 total in queue.
Mar 15 08:02:36 cert-prod-haproxy haproxy[1411077]: Server swarm-scsp/gw1 is UP, reason: Layer7 check passed, code: 200, check duration: 18ms. 2 active and 0 backup servers online. 0 sessions requeued, 0 total in queue.

*** Here we are back using both gateways

Mar 15 08:02:37 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:46086 [15/Mar/2024:08:02:37.293] www-http swarm-scsp/gw2 0/0/0/13/21 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.a|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:02:39 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:46090 [15/Mar/2024:08:02:38.336] www-http swarm-scsp/gw1 0/0/0/894/899 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.0|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:02:40 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:46100 [15/Mar/2024:08:02:40.256] www-http swarm-scsp/gw2 0/0/0/14/21 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.a|} "GET /test14/test2 HTTP/1.1"
Mar 15 08:02:41 cert-prod-haproxy haproxy[1411077]: 172.30.4.246:46106 [15/Mar/2024:08:02:41.299] www-http swarm-scsp/gw1 0/0/0/18/23 200 1058993 - - ---- 1/1/0/0/0 0/0 {|swarm.certlab.datacore.com|curl/7.29.0|||Basic YWRtaW46ZGF0YWNvcmU=} {CAStor Cluster/16.0.0|} "GET /test14/test2 HTTP/1.1"

Create a Self-Signed SSL Certificate

First we need to make an openssl.conf file, in this example YOUR_DOMAIN = swarm.example.com

Code Block

[ req ]
prompt = no
distinguished_name = server_distinguished_name
req_extensions = v3_req
default_md = sha256

[ server_distinguished_name ]
commonName = *.swarm.example.com
stateOrProvinceName = Texas
countryName = US
emailAddress = admin@example.com
organizationName = Example Inc.
localityName = Austin

[ v3_req ]
keyUsage = nonRepudiation, digitalSignature, keyEncipherment
extendedKeyUsage = serverAuth
subjectAltName = @alt_names

[ alt_names ]
DNS.1=swarm.example.com
DNS.2=*.swarm.example.com

...

for CentOS7 and haproxy 1.8 by default require additional log settings to see the output in a file, add the following line in /etc/rsyslog.conf after the boot.log

Code Block
local2.* /var/log/haproxy.log

then run

Code Block
systemctl restart rsyslog

you should now see haproxy logging in /var/log/haproxy.logsettings to see the output in a file, add the following line in /etc/rsyslog.conf after the boot.log

Code Block
local2.* /var/log/haproxy.log

then run

Code Block
systemctl restart rsyslog

you should now see haproxy logging in /var/log/haproxy.log

Do not forget to enable the ports on your firewall

Code Block
firewall-cmd --add-port=443/tcp --permanent firewall-cmd --add-port=80/tcp --permanent firewall-cmd --reload

Info
Keep in mind that normally you have multiple zone’s , since gateway has 2 adapters, the above example only adds the ports to the Default firewall zone

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Related issues

Versions Compared

Old Version 34

New Version Current

Key

Create a Self-Signed SSL Certificate

Loadbalancing healthcheck

SCSP Protocol

S3 Protocol

Admin Protocol ( cluster_admin )

Backend section for all protocols

Example Logging with SCSP health check

Create a Self-Signed SSL Certificate