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<p><a href="elma365-on-premises.html">BRIX On-Premises</a> &gt; <a href="infrastructure-preparation.html">Prepare infrastructure</a> &gt; Load balancer / Configure HAProxy for S3 MinIO</p>
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<div class="topic__title"><h1 class="p_Heading1"><span class="f_Heading1">Configure HAProxy for S3 MinIO</span></h1>
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<p style="line-height: 1.20; margin: 7px 0 16px 0;"><span style="font-family: Inter;">In an BRIX high availability cluster, microservices of the BRIX application interact with a MinIO cluster. </span>To evenly balance traffic between S3 MinIO cluster servers, install a HAProxy configuration. This will ensure stable system operation in case of a failure.</p>
<h2 class="p_Heading2"><span class="f_Heading2">Example of a configuration of HAProxy for MinIO</span></h2>
<p style="line-height: 1.20; margin: 7px 0 16px 0;"><span style="font-family: Inter;">This article describes configuration of load balancing for a MinIO cluster deployed according to the instructions in the <a href="minio-cluster.html" class="topiclink">MinIO cluster</a> article. HAProxy is used for this. It balances client connections coming to </span><code><b>minio.your_domain:9000</b></code><span style="font-family: Inter;"> between the cluster servers.</span></p>
<p style="line-height: 1.20; margin: 7px 0 16px 0;"><span style="font-family: Inter;">In order to create a HAProxy configuration for S3 MinIO, perform the following actions:</span></p>
<ol style="list-style-type:upper-roman">
<li value="1" style="line-height: 1.20; margin-top: 7px; margin-right: 0; margin-bottom: 16px;"><span style="font-family: Inter;">Open the </span><code><b>haproxy.cfg</b></code><span style="font-family: Inter;"> file for editing using the following command:</span></li></ol>
<p class="p_CodeExample" style="page-break-inside: avoid; margin: 0 0 0 34px;"><span class="f_CodeExample">sudo nano /etc/haproxy/haproxy.cfg</span></p>
<ol style="list-style-type:upper-roman" start="2">
<li value="2" style="line-height: 1.20; margin-top: 7px; margin-right: 0; margin-bottom: 16px;"><span style="font-family: Inter;">Edit the </span><code><b>haproxy.cfg</b></code><span style="font-family: Inter;"> configuration file:</span></li></ol>
<p style="line-height: 1.28; margin: 0 0 11px 34px;"><span style="font-family: Inter;"><a class="dropdown-toggle" style="font-style: normal; font-weight: normal; color: #000000; background-color: transparent; text-decoration: none;" href="javascript:HMToggle('toggle','TOGGLE0186A1')">Configuration example:</a></span></p>
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<td style="vertical-align:top; padding:0; border:none"><p class="p_CodeExample" style="line-height: 1.28; white-space: normal; page-break-inside: auto; margin: 0 0 11px 34px;"><span class="f_CodeExample">### S3 MinIO ###</span><br />
<span class="f_CodeExample">listen s3minio</span><br />
<span class="f_CodeExample"> &nbsp; &nbsp;bind minio.your_domain:9000</span><br />
<span class="f_CodeExample"> &nbsp; &nbsp;mode http</span><br />
<span class="f_CodeExample"> &nbsp; &nbsp;balance leastconn</span><br />
<span class="f_CodeExample"> &nbsp; &nbsp;server minio1 minio-server1.your_domain:9000 check inter 2s</span><br />
<span class="f_CodeExample"> &nbsp; &nbsp;server minio2 minio-server2.your_domain:9000 check inter 2s</span><br />
<span class="f_CodeExample"> &nbsp; &nbsp;server minio3 minio-server3.your_domain:9000 check inter 2s</span><br />
<span class="f_CodeExample"> &nbsp; &nbsp;server minio4 minio-server4.your_domain:9000 check inter 2s</span><br />
<span class="f_CodeExample">### S3 MinIO ###</span></p>
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<p style="line-height: 1.28; margin: 0 0 11px 34px;"><span style="font-family: Inter;"><a class="dropdown-toggle" style="font-style: normal; font-weight: normal; color: #000000; background-color: transparent; text-decoration: none;" href="javascript:HMToggle('toggle','TOGGLE0186A2')">Example of a HAProxy configuration using SSL</a></span></p>
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<td style="vertical-align:top; padding:0; border:none"><p class="p_Normal" style="line-height: 1.28; margin: 0 0 11px 0;"><span style="font-family: Inter;">Enabling SSL is possible if OpenSSL support is built in. In the </span><code><b>crt</b></code><span style="font-family: Inter;"> parameter, specify the path to the PEM file containing the required certificates and associated private keys (<a href="fullchain-sertificate.html" class="topiclink">fullchain certificate</a>). If the file does not contain a private key, HAProxy will attempt to load the key from the same path with a </span><span style="font-family: Inter; font-weight: bold;">.key</span><span style="font-family: Inter;"> suffix.</span></p>
<p class="p_Normal">&nbsp;<br />
If a directory name is used instead of a PEM file, all files found in that directory will be loaded in alphabetical order, excluding files ending in <span style="font-weight: bold;">.issuer</span>, <span style="font-weight: bold;">.ocsp</span>, and <span style="font-weight: bold;">.sctl</span> (reserved solutions).</p>
<p class="p_Normal">&nbsp;<br />
<span style="font-family: Inter;">In the </span><code><b>ca-file</b></code><span style="font-family: Inter;"> parameter, specify the path to the PEM file containing the root certificate. For more details, refer to the </span><span style="font-family: Inter; font-weight: bold;">Configuration Manual</span><span style="font-family: Inter;"> for the used version of HAProxy. For example, for</span><span style="font-size: 13px; font-family: Inter; color: #394149;"> <a href="https://cbonte.github.io/haproxy-dconv/2.5/configuration.html#5.1-crt" target="_blank" class="weblink">HAProxy 2.5</a>:</span></p>
<p class="p_Normal" style="line-height: 1.28; margin: 0 0 11px 34px;">&nbsp;</p>
<p class="p_CodeExample" style="page-break-inside: avoid;"><span class="f_CodeExample">###&nbsp;S3&nbsp;MinIO&nbsp;###</span><br />
<span class="f_CodeExample">listen&nbsp;s3minio</span><br />
<span class="f_CodeExample" style="color: #ffffff;">&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="f_CodeExample">bind&nbsp;minio.your_domain:9000&nbsp;ssl&nbsp;crt&nbsp;/etc/haproxy/ssl/minio-server.your_domain.pem</span><br />
<span class="f_CodeExample" style="color: #ffffff;">&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="f_CodeExample">mode&nbsp;http</span><br />
<span class="f_CodeExample" style="color: #ffffff;">&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="f_CodeExample">balance&nbsp;leastconn</span><br />
<span class="f_CodeExample" style="color: #ffffff;">&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="f_CodeExample">server&nbsp;minio1&nbsp;minio-server1.your_domain:9000&nbsp;check&nbsp;inter&nbsp;2s&nbsp;ssl&nbsp;crt&nbsp;/etc/haproxy/ssl/minio-server.your_domain.pem&nbsp;ca-file&nbsp;/etc/haproxy/ssl/rootCA_your_domain.pem</span><br />
<span class="f_CodeExample" style="color: #ffffff;">&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="f_CodeExample">server&nbsp;minio2&nbsp;minio-server2.your_domain:9000&nbsp;check&nbsp;inter&nbsp;2s&nbsp;ssl&nbsp;crt&nbsp;/etc/haproxy/ssl/minio-server.your_domain.pem</span><span class="f_CodeExample" style="color: #ffffff;">&nbsp;</span><span class="f_CodeExample">ca-file&nbsp;/etc/haproxy/ssl/rootCA_your_domain.pem</span><br />
<span class="f_CodeExample" style="color: #ffffff;">&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="f_CodeExample">server&nbsp;minio3&nbsp;minio-server3.your_domain:9000&nbsp;check&nbsp;inter&nbsp;2s&nbsp;ssl&nbsp;crt&nbsp;/etc/haproxy/ssl/minio-server.your_domain.pem&nbsp;ca-file&nbsp;/etc/haproxy/ssl/rootCA_your_domain.pem</span><br />
<span class="f_CodeExample" style="color: #ffffff;">&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="f_CodeExample">server&nbsp;minio4&nbsp;minio-server4.your_domain:9000&nbsp;check&nbsp;inter&nbsp;2s&nbsp;ssl&nbsp;crt&nbsp;/etc/haproxy/ssl/minio-server.your_domain.pem</span><span class="f_CodeExample" style="color: #ffffff;">&nbsp;</span><span class="f_CodeExample">ca-file&nbsp;/etc/haproxy/ssl/rootCA_your_domain.pem</span><br />
<span class="f_CodeExample">###&nbsp;S3&nbsp;MinIO&nbsp;###</span></p>
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<ol style="list-style-type:upper-roman" start="3">
<li value="3" style="line-height: 1.20; margin-top: 7px; margin-right: 0; margin-bottom: 16px;"><span style="font-family: Inter;">Restart</span><span style="font-size: 13px; font-family: Inter; color: #394149;"> </span>HAProxy to apply changes<span style="font-family: Inter; color: #394149;">:</span></li></ol>
<p class="p_CodeExample" style="page-break-inside: avoid; margin: 0 0 0 34px;"><span class="f_CodeExample">sudo systemctl restart haproxy</span></p>
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