https://luiscachog.io/tag/debug/DebugWowchemy (https://wowchemy.com)en-usWed, 04 Aug 2021 00:00:00 +0000https://luiscachog.io/media/icon_hu4fa4dbbaafd6f1b45a88958b9b4a0dd0_11007_512x512_fill_lanczos_center_3.pnghttps://luiscachog.io/tag/debug/https://luiscachog.io/garden/debug-dns-tcpdump/Wed, 04 Aug 2021 00:00:00 +0000https://luiscachog.io/garden/debug-dns-tcpdump/<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">tcpdump -xx -vvvv -s <span class="m">0</span> -l -n -i any port <span class="m">53</span> -w test.pcap </span></span></code></pre></div>https://luiscachog.io/garden/debug-istio/Sun, 01 Aug 2021 00:00:00 +0000https://luiscachog.io/garden/debug-istio/<ul> <li>Istio Pods</li> </ul> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">kubectl get pods -n istio-system </span></span></code></pre></div><ul> <li>Istio Logs</li> </ul> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">kubectl logs -n istio-system -l <span class="nv">app</span><span class="o">=</span>istiod </span></span></code></pre></div><ul> <li>Istio Analize</li> </ul> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">istioctl analyze </span></span></code></pre></div><ul> <li>Istio Proxy Status</li> </ul> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">istioctl proxy-status </span></span></code></pre></div>https://luiscachog.io/garden/debug-k8s/Sun, 01 Aug 2021 00:00:00 +0000https://luiscachog.io/garden/debug-k8s/<ul> <li>Kubernetes error messages</li> </ul> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">kubectl get events -n kube-system </span></span></code></pre></div><ul> <li>Kubernetes pods logs</li> </ul> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">stern prox -n kube-system </span></span></code></pre></div><ul> <li>Debug with busybox</li> </ul> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">kubectl run --generator<span class="o">=</span>run-pod/v1 -i --tty busybox --image<span class="o">=</span>busybox --restart<span class="o">=</span>Never -- sh </span></span></code></pre></div>