Skill map
Platform operations
Manages platform lifecycle, capacity, upgrades, backup, recovery, and incident response. As Platform Engineer needs it.
Platform operations skill map
- Platform operations
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Careers that require it
- Platform EngineerImportance 5 of 5
Courses that teach it
HOWTOs
Concrete operational procedures from the courses on this page.
- How to rotate the Consul gossip encryption key
Replacing the shared Serf gossip key on a running datacenter without partitioning any agent, and what changes when the datacenters are WAN-federated.
HashiCorp Consul
- How to restore a Consul cluster from a Raft snapshot after quorum loss
Recovering a Consul server cluster that has lost quorum, and where the peers.json Raft rebuild ends and a consul snapshot restore begins.
HashiCorp Consul
- How to bootstrap ACLs on a running Consul cluster without an outage
Turning on the Consul ACL system on a datacenter that has none without a service-discovery outage, and why the permissive-first, deny-last order matters.
HashiCorp Consul
- How to upgrade a production Kubernetes cluster one minor version
Moving a self-managed kubeadm cluster forward one Kubernetes minor version, including the version-skew rules and pre-flight checks that decide whether the upgrade can proceed at all.
Kubernetes Operations
- How to drain and replace a worker node safely
Taking a worker node out of service for disruptive work or retirement without breaching any workload's availability guarantee, and returning it or removing it cleanly afterward.
Kubernetes Operations
- How to renew expiring kubeadm control-plane certificates
Renewing the one-year kubeadm control-plane certificates before they expire, and the offline recovery path for a cluster whose certificates have already lapsed and whose API server is down.
Kubernetes Operations
- How to rebuild a Kubernetes control plane from an etcd snapshot
The last-resort recovery when etcd data is lost or corrupt beyond quorum: replacing entire cluster state from a snapshot, with the data-loss and reconciliation consequences that come with it.
Kubernetes Operations
- How to migrate deprecated Kubernetes API usage before an upgrade
Clearing an upgrade blocker by locating every client, manifest, and controller still calling a Kubernetes API version the next minor removes, and proving the usage is gone before the upgrade.
Kubernetes Operations