Lakehouse Admin
f3d24634e4
- Translate all documentation to English - Add docs/ssh-mesh.md and scripts/setup/setup-ssh-mesh.sh - Add config/hosts/atc-lab.hosts for /etc/hosts on all VMs - Ignore atc_cluster private key in git; mesh deployed on 12 hosts
70 lines
1.8 KiB
Markdown
70 lines
1.8 KiB
Markdown
# SSH mesh — passwordless access
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All ATC lab VMs share a cluster SSH key so root can hop between hosts without passwords.
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## Design
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| Item | Path / value |
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|------|----------------|
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| Shared private key | `/root/.ssh/atc_cluster` (on each VM, **not** in git) |
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| Shared public key | `/root/.ssh/atc_cluster.pub` |
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| SSH client snippet | `/root/.ssh/config.d/99-atc-lab.conf` |
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| Host aliases | `/etc/hosts` block tagged `ATC Lakehouse lab` |
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Proxmox (`pve01`) also keeps its admin key in each VM's `authorized_keys` for break-glass access.
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## Fleet (mesh enabled)
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| Hostname | IP |
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|----------|-----|
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| atc-docker01 | 10.0.21.45 |
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| atc-docker02 | 10.0.21.47 |
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| atc-mgt01 | 10.0.20.104 |
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| atc-kafka01 | 10.0.21.36 |
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| atc-lake01 | 10.0.21.50 |
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| atc-elastic01 | 10.0.21.46 |
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| atc-db01 | 10.0.20.112 |
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| atc-db02 | 10.0.21.51 |
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| atc-grafana | 10.0.20.103 |
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| atc-airflow01 | 10.0.21.55 |
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| atc-portal01 | 10.0.21.49 |
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| atc-lama01 | 10.0.21.39 |
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## Deploy / refresh
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From Proxmox (or any host with root SSH to the fleet):
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```bash
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cd /root/lakehouse
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./scripts/setup/setup-ssh-mesh.sh
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```
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## Test
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```bash
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ssh -i ~/.ssh/atc_cluster root@atc-docker01
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ssh -i ~/.ssh/atc_cluster root@atc-lake01 hostname
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# or from docker01:
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for h in atc-db01 atc-kafka01 atc-mgt01; do
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ssh -i /root/.ssh/atc_cluster root@$h hostname -f
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done
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```
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## Hosts not yet in the mesh
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These VMs did not accept the hypervisor key (different credentials or SSH policy):
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- `10.0.21.52`, `10.0.21.37`, `10.0.21.38`, `10.0.21.41`
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- `10.0.20.111` (ObjectScale), `10.0.20.31`, `10.0.21.44`
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Add the cluster public key manually after fixing root access:
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```bash
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cat /root/.ssh/atc_cluster.pub # from any mesh host
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# paste into target:/root/.ssh/authorized_keys
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```
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## Security note
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The cluster private key is powerful. Restrict Forgejo repo access and rotate keys if the lab is exposed outside your network.
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