Every article filed under “Operations” — 9 in total.
9 articles in total
Getting Ansible off the ground with one control node and two CentOS 7.8 managed nodes: the EPEL repo and installation, three ways to write the inventory (per host, shared vars, a range), public-key versus password authentication, the first-login fingerprint check, and writing and running a playbook.
Installing containerd 1.7 and runC from the cri-containerd-cni tarball: where each unpacked file goes, how the systemd unit is installed, and how to adjust the default config.toml and registry mirrors.
Installing containerd on openEuler from Docker's official YUM repository, enabling it at boot, and verifying the version afterwards.
Building a K8S v1.26.15 cluster from scratch with containerd on Alibaba Cloud Linux: host and kernel preparation, ipvs and bridge parameters, kubeadm initialization and node join, plus offline image handling for the Calico network.
Notes on building a K8S v1.28.5 cluster: switching to a binary install of containerd and runc (including compiling libseccomp), plus the troubleshooting around pulling Calico images and re-joining a node.
A record of building a K8S v1.30.6 cluster: declarative initialization with kubeadm-config.yaml (full config included), offline image handling for Calico v3.28.2, and a verification checklist for node status, DNS and namespaces.
Moving SSH off port 22 on openEuler, step by step: the SELinux port label, the firewall rule, and the sshd restart. Adding the new port before removing the old one is what keeps you from locking yourself out.
From kernel tuning, containerd and kubeadm to GPU Operator and vLLM deployment: an environment setup checklist for AI compute clusters, covering compute scheduling isolation, autoscaling and delivery acceptance items.
Setting a static IP for openEuler 24.03 under VMware bridged networking: network planning, both the nmcli and ifcfg approaches, verification steps, a troubleshooting table, and quick templates for NAT and host-only modes.