Kubernetes

As one of the first adaptors of Kubernetes, I have learned the hard way to install, upgrade and maintain Kubernetes. Kubernetes can simplify a lot of your infrastructure and development pipeline but it is not THE solution for each project.

My experience of Kubernetes ranges from installing and managing it the-hard-way, a cluster on AWS, GCE or DigitalOcean or provisioning a cluster using Ansible or Puppet.

Kubernetes tasks

• Cluster installation and configuration (by using kubeadm, Puppet, Ansible)
• Periodic maintenance, upgrades, security checks
• Setting up high availability (multiple master nodes, etcd cluster)
• Implementing GitOps solution like Weave Flux or ArgoCD
• Troubleshoot issues on networking, scheduling, storage, container, crashes and more
• Integrate monitoring, logging and alerting with Prometheus and Nagios
• Automated deployment pipeline with Gitlab, Jenkins or other CI tool (see also CI/CD)
• Tighten security with RBAC rules, network policies and pod security policies
• Service mesh insight and control with Istio or Linkerd
• Integrate with your cloud provider or hypervisor (VMWare, DigitalOcean, GCE, AWS)
• Implement persistent storage (cloud volumes, object storage, NFS, Ceph)
• Implement automated backup
• Writing or customize Helm charts