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Travis Bot 2019-01-15 00:13:27 +00:00
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commit 7848b04afc
6 changed files with 70 additions and 52 deletions
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16
examples/affinity/cookie/index.html
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@ -1168,6 +1168,16 @@
<td>Type of hash that will be used in cookie value</td>
<td>sha1/md5/index</td>
</tr>
<tr>
<td>nginx.ingress.kubernetes.io/session-cookie-expires</td>
<td>The value is a date as UNIX timestamp that the cookie will expire on, it corresponds to cookie Expires directive</td>
<td>number of seconds</td>
</tr>
<tr>
<td>nginx.ingress.kubernetes.io/session-cookie-max-age</td>
<td>Number of seconds until the cookie expires that will correspond to cookie <code class="codehilite">Max-Age</code> directive</td>
<td>number of seconds</td>
</tr>
</tbody>
</table>
<p>You can create the ingress to test this</p>
@ -1190,6 +1200,8 @@
<span class="go"> affinity: cookie</span>
<span class="go"> session-cookie-hash: sha1</span>
<span class="go"> session-cookie-name: INGRESSCOOKIE</span>
<span class="go"> session-cookie-expires: 172800</span>
<span class="go"> session-cookie-max-age: 172800</span>
<span class="go">Events:</span>
<span class="go"> FirstSeen LastSeen Count From SubObjectPath Type Reason Message</span>
<span class="go"> --------- -------- ----- ---- ------------- -------- ------ -------</span>
@ -1203,13 +1215,13 @@
<span class="go">Content-Type: text/html</span>
<span class="go">Content-Length: 612</span>
<span class="go">Connection: keep-alive</span>
<span class="go">Set-Cookie: INGRESSCOOKIE=a9907b79b248140b56bb13723f72b67697baac3d; Path=/; HttpOnly</span>
<span class="go">Set-Cookie: INGRESSCOOKIE=a9907b79b248140b56bb13723f72b67697baac3d; Expires=Sun, 12-Feb-17 14:11:12 GMT; Max-Age=172800; Path=/; HttpOnly</span>
<span class="go">Last-Modified: Tue, 24 Jan 2017 14:02:19 GMT</span>
<span class="go">ETag: &quot;58875e6b-264&quot;</span>
<span class="go">Accept-Ranges: bytes</span>
</pre></div>
In the example above, you can see a line containing the 'Set-Cookie: INGRESSCOOKIE' setting the right defined stickiness cookie.
This cookie is created by NGINX containing the hash of the used upstream in that request.
This cookie is created by NGINX, it contains the hash of the used upstream in that request and has an expires.
If the user changes this cookie, NGINX creates a new one and redirect the user to another upstream.</p>
<p>If the backend pool grows up NGINX will keep sending the requests through the same server of the first request, even if it's overloaded.</p>
<p>When the backend server is removed, the requests are then re-routed to another upstream server and NGINX creates a new cookie, as the previous hash became invalid.</p>

2
examples/affinity/cookie/ingress.yaml
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@ -6,6 +6,8 @@ metadata:
nginx.ingress.kubernetes.io/affinity: "cookie"
nginx.ingress.kubernetes.io/session-cookie-name: "route"
nginx.ingress.kubernetes.io/session-cookie-hash: "sha1"
nginx.ingress.kubernetes.io/session-cookie-expires: "172800"
nginx.ingress.kubernetes.io/session-cookie-max-age: "172800"
spec:
rules:

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search/search_index.json
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sitemap.xml
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@ -2,227 +2,227 @@
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
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<lastmod>2019-01-12</lastmod>
<lastmod>2019-01-15</lastmod>
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<lastmod>2019-01-15</lastmod>
<changefreq>daily</changefreq>
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<lastmod>2019-01-12</lastmod>
<lastmod>2019-01-15</lastmod>
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sitemap.xml.gz
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user-guide/nginx-configuration/configmap/index.html
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@ -3047,7 +3047,7 @@ Same for numbers, like "100".</p>
<tr>
<td align="left"><a href="#max-worker-connections">max-worker-connections</a></td>
<td align="left">int</td>
<td align="left">0</td>
<td align="left">16384</td>
</tr>
<tr>
<td align="left"><a href="#max-worker-open-files">max-worker-open-files</a></td>
@ -3055,7 +3055,7 @@ Same for numbers, like "100".</p>
<td align="left">0</td>
</tr>
<tr>
<td align="left"><a href="#max-worker-connections">map-hash-bucket-size</a></td>
<td align="left"><a href="#max-hash-bucket-size">map-hash-bucket-size</a></td>
<td align="left">int</td>
<td align="left">64</td>
</tr>
@ -3620,8 +3620,12 @@ Example for json output:</p>
<a href="http://nginx.org/en/docs/ngx_core_module.html#multi_accept">http://nginx.org/en/docs/ngx_core_module.html#multi_accept</a></p>
<h2 id="max-worker-connections">max-worker-connections<a class="headerlink" href="#max-worker-connections" title="Permanent link">&para;</a></h2>
<p>Sets the <a href="http://nginx.org/en/docs/ngx_core_module.html#worker_connections">maximum number of simultaneous connections</a> that can be opened by each worker process.
The default of 0 uses the value of <a href="#max-worker-open-files">max-worker-open-files</a>.
<em><strong>default:</strong></em> 0</p>
0 will use the value of <a href="#max-worker-open-files">max-worker-open-files</a>.
<em><strong>default:</strong></em> 16384</p>
<div class="admonition tip">
<p class="admonition-title">Tip</p>
<p>Using 0 in scenarios of high load improves performance at the cost of increasing RAM utilization (even on idle).</p>
</div>
<h2 id="max-worker-open-files">max-worker-open-files<a class="headerlink" href="#max-worker-open-files" title="Permanent link">&para;</a></h2>
<p>Sets the <a href="http://nginx.org/en/docs/ngx_core_module.html#worker_rlimit_nofile">maximum number of files</a> that can be opened by each worker process.
The default of 0 means "max open files (system's limit) / <a href="#worker-processes">worker-processes</a> - 1024".