https://marktaguiad.dev/tags/circuitbreaker/ Recent content in Circuitbreaker on marktaguiad.dev Hugo en-us marktaguiad@marktaguiad.dev (Mark Taguiad) marktaguiad@marktaguiad.dev (Mark Taguiad) marktaguiad.dev Sat, 28 Mar 2026 00:00:00 +0000 https://marktaguiad.dev/post/k8s-istio-tres/ Sat, 28 Mar 2026 00:00:00 +0000marktaguiad@marktaguiad.dev (Mark Taguiad) https://marktaguiad.dev/post/k8s-istio-tres/ <p>Continuation of Kubernetes Istio.</p> <h1 id="table-of-contents">Table of Contents</h1> <nav id="TableOfContents"> <ol> <li><a href="#ingress-gateway">Ingress Gateway</a></li> <li><a href="#gateway">Gateway</a></li> <li><a href="#fault-injection">Fault Injection</a> <ol> <li><a href="#verify">Verify</a></li> </ol> </li> <li><a href="#retries">Retries</a></li> <li><a href="#circuit-breaker">Circuit Breaker</a></li> </ol> </nav> <p>I&rsquo;ve mentioned in this <a href="https://marktaguiad.dev/post/k8s-istio-uno.md">post</a> that will sticking with <code>HTTPRoute</code>, but feature discussed here only support (for now) Istio API.</p> <h3 id="ingress-gateway">Ingress Gateway</h3> <p>Istio deploys a default resource for this, and for this example we are using the default ingress gateway <code>ingressgateway</code>.</p> <p>If you want to create a custom ingress gateway.</p> <p><em>istio-gateway.yaml</em></p> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-yaml" data-lang="yaml"><span class="line"><span class="ln"> 1</span><span class="cl"><span class="nt">apiVersion</span><span class="p">:</span><span class="w"> </span><span class="l">install.istio.io/v1alpha1</span><span class="w"> </span></span></span><span class="line"><span class="ln"> 2</span><span class="cl"><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="l">IstioOperator</span><span class="w"> </span></span></span><span class="line"><span class="ln"> 3</span><span class="cl"><span class="nt">metadata</span><span class="p">:</span><span class="w"> </span></span></span><span class="line"><span class="ln"> 4</span><span class="cl"><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l">istio-control-plane</span><span class="w"> </span></span></span><span class="line"><span class="ln"> 5</span><span class="cl"><span class="w"> </span><span class="nt">namespace</span><span class="p">:</span><span class="w"> </span><span class="l">istio-system</span><span class="w"> </span></span></span><span class="line"><span class="ln"> 6</span><span class="cl"><span class="nt">spec</span><span class="p">:</span><span class="w"> </span></span></span><span class="line"><span class="ln"> 7</span><span class="cl"><span class="w"> </span><span class="nt">components</span><span class="p">:</span><span class="w"> </span></span></span><span class="line"><span class="ln"> 8</span><span class="cl"><span class="w"> </span><span class="nt">ingressGateways</span><span class="p">:</span><span class="w"> </span></span></span><span class="line"><span class="ln"> 9</span><span class="cl"><span class="w"> </span>- <span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l">istio-ingressgateway-prod</span><span class="w"> </span></span></span><span class="line"><span class="ln">10</span><span class="cl"><span class="w"> </span><span class="nt">namespace</span><span class="p">:</span><span class="w"> </span><span class="l">istio-system</span><span class="w"> </span></span></span><span class="line"><span class="ln">11</span><span class="cl"><span class="w"> </span><span class="nt">enabled</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="w"> </span></span></span><span class="line"><span class="ln">12</span><span class="cl"><span class="w"> </span><span class="nt">label</span><span class="p">:</span><span class="w"> </span></span></span><span class="line"><span class="ln">13</span><span class="cl"><span class="w"> </span><span class="nt">istio</span><span class="p">:</span><span class="w"> </span><span class="l">ingressgateway-prod</span><span class="w"> </span></span></span><span class="line"><span class="ln">14</span><span class="cl"><span class="w"> </span></span></span><span class="line"><span class="ln">15</span><span class="cl"><span class="w"> </span>- <span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l">istio-ingressgateway-dev</span><span class="w"> </span></span></span><span class="line"><span class="ln">16</span><span class="cl"><span class="w"> </span><span class="nt">namespace</span><span class="p">:</span><span class="w"> </span><span class="l">istio-system</span><span class="w"> </span></span></span><span class="line"><span class="ln">17</span><span class="cl"><span class="w"> </span><span class="nt">enabled</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="w"> </span></span></span><span class="line"><span class="ln">18</span><span class="cl"><span class="w"> </span><span class="nt">label</span><span class="p">:</span><span class="w"> </span></span></span><span class="line"><span class="ln">19</span><span class="cl"><span class="w"> </span><span class="nt">istio</span><span class="p">:</span><span class="w"> </span><span class="l">ingressgateway-dev</span><span class="w"> </span></span></span></code></pre></div><p>This will create two ingress gateway.</p>