rdmsm4x-changelog-20260831-1856-central-fleet-container-management-setup

Configured centralized fleet container orchestration from rdmsm4x across all 6 macOS fleet hosts for OrbStack and Podman, registering remote Docker contexts, deploying standardized non-interactive SSH environments, and building the fleet-containers unified CLI tool.

Scope

• Lead Controller: rdmsm4x
• Managed Fleet Hosts: rdmbair15m5, rdmbair13m5, jdmbair13m5, rdmpw3265m, rdmpw3275m
• Engines & Tools: OrbStack, Podman Desktop, Docker Engine, docker context, fleet-containers CLI

Deliverables & Configurations

1. Remote Docker Contexts Registered:
   • rdmbair15m5 -> ssh://richh@100.74.59.4
   • rdmbair13m5 -> ssh://richh@100.75.186.59
   • jdmbair13m5 -> ssh://richh@100.86.185.90
   • rdmpw3265m -> ssh://richh@100.113.170.117
   • rdmpw3275m -> ssh://richh@100.95.173.70
   • orbstack (local) -> unix:///Users/richh/.orbstack/run/docker.sock
2. Environment Normalization:
   • Standardized ~/.zshenv across all spoke hosts, ensuring automated PATH discovery for non-interactive SSH subshells.
3. Central Management CLI:
   • Created /Users/richh/dev/scripts/fleet_containers.py and linked to /opt/homebrew/bin/fleet-containers on rdmsm4x.
   • Commands: fleet-containers status, fleet-containers ps [host|all], fleet-containers contexts, fleet-containers exec <host> <cmd>.

Verification Evidence

• fleet-containers status: Probed all 6 nodes concurrently via ThreadPoolExecutor in <3s.
• fleet-containers ps: Successfully aggregated and rendered live telemetry for all 23 containers running across rdmsm4x, rdmpw3265m, and rdmpw3275m.
• fleet-containers exec rdmpw3265m docker ps: Executed remote container inspections seamlessly through SSH context tunnels.