https://www.neilborromeo.com/tags/kubernetes/ Recent content in Kubernetes on Neil Borromeo - I build dependable infrastructure, automation, and digital systems for real-world businesses Hugo en-us Fri, 31 Jan 2025 00:00:00 +0800 https://www.neilborromeo.com/blog/2025/01-31-debugging-a-504-gateway-timeout-through-kubernetes-ingress/ Fri, 31 Jan 2025 00:00:00 +0800 https://www.neilborromeo.com/blog/2025/01-31-debugging-a-504-gateway-timeout-through-kubernetes-ingress/ A practical ingress debugging workflow for cases where the app appears healthy but requests still time out at the edge. https://www.neilborromeo.com/blog/2024/12-10-replacing-cloudflared-kubernetes-credentials-for-a-new-tunnel/ Tue, 10 Dec 2024 00:00:00 +0800 https://www.neilborromeo.com/blog/2024/12-10-replacing-cloudflared-kubernetes-credentials-for-a-new-tunnel/ A draft on rotating a cloudflared tunnel inside Kubernetes by replacing the local credentials and the cluster secrets that reference them. https://www.neilborromeo.com/blog/2024/07-01-fusionauth-outage-after-a-forced-kubernetes-upgrade/ Mon, 01 Jul 2024 00:00:00 +0800 https://www.neilborromeo.com/blog/2024/07-01-fusionauth-outage-after-a-forced-kubernetes-upgrade/ A postmortem-style write-up about a FusionAuth outage triggered by a managed Kubernetes upgrade and storage recovery failure. https://www.neilborromeo.com/blog/2024/02-15-setting-up-a-cloudflared-tunnel-for-a-cluster/ Thu, 15 Feb 2024 00:00:00 +0800 https://www.neilborromeo.com/blog/2024/02-15-setting-up-a-cloudflared-tunnel-for-a-cluster/ A first-pass draft on installing cloudflared and using it to provide tunnel access for a cluster environment. https://www.neilborromeo.com/blog/2024/01-18-setting-up-cert-manager-with-let-s-encrypt-and-cloudflare-dns-01-in-kubernetes/ Thu, 18 Jan 2024 00:00:00 +0800 https://www.neilborromeo.com/blog/2024/01-18-setting-up-cert-manager-with-let-s-encrypt-and-cloudflare-dns-01-in-kubernetes/ A practical Kubernetes TLS workflow using `cert-manager`, Cloudflare DNS-01 validation, and NGINX Ingress. https://www.neilborromeo.com/blog/2023/12-06-restoring-fusionauth-with-postgres-dumps-and-elasticsearch-cleanup/ Wed, 06 Dec 2023 00:00:00 +0800 https://www.neilborromeo.com/blog/2023/12-06-restoring-fusionauth-with-postgres-dumps-and-elasticsearch-cleanup/ A recovery workflow for bringing a broken FusionAuth deployment back using database restores and Elasticsearch cleanup. https://www.neilborromeo.com/blog/2023/10-23-using-imagepullsecrets-for-a-private-registry-in-kubernetes-with-containerd/ Mon, 23 Oct 2023 00:00:00 +0800 https://www.neilborromeo.com/blog/2023/10-23-using-imagepullsecrets-for-a-private-registry-in-kubernetes-with-containerd/ A practical walkthrough for creating and applying `imagePullSecrets` so workloads can pull images from a private registry. https://www.neilborromeo.com/blog/2023/09-28-fixing-br-netfilter-sysctl-errors-during-kubernetes-node-prep/ Thu, 28 Sep 2023 00:00:00 +0800 https://www.neilborromeo.com/blog/2023/09-28-fixing-br-netfilter-sysctl-errors-during-kubernetes-node-prep/ A quick fix for Kubernetes node setup failures caused by missing bridge netfilter kernel support. https://www.neilborromeo.com/blog/2023/07-11-rebuilding-worker-nodes-in-a-rancher-managed-cluster/ Tue, 11 Jul 2023 00:00:00 +0800 https://www.neilborromeo.com/blog/2023/07-11-rebuilding-worker-nodes-in-a-rancher-managed-cluster/ A practical cluster recovery note covering node cleanup, re-registration, and follow-up cluster reconstruction work. https://www.neilborromeo.com/blog/2023/06-22-investigating-vsftpd-tls-problems-in-kubernetes/ Thu, 22 Jun 2023 00:00:00 +0800 https://www.neilborromeo.com/blog/2023/06-22-investigating-vsftpd-tls-problems-in-kubernetes/ A preserved troubleshooting draft for an FTP service in Kubernetes that showed TLS connection termination problems.