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fix: use local Rancher kubeconfig

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This commit is contained in:
Daniel Noulet 2026-09-20 15:18:00 +02:00
parent 76db5bf7a1
commit 88e911d05f
2 changed files with 26 additions and 12 deletions
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19
rancher-install.txt
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@ -18,6 +18,8 @@ Kubernetes cluster instead of copying this single-container topology.
- Registry configuration: `~/.config/kubectl/registries.yaml`
- Local HTTP: `http://127.0.0.1:8000`
- Local HTTPS: `https://127.0.0.1:8443`
- Development application NodePort: `http://127.0.0.1:30080`
- Production application NodePort: `http://127.0.0.1:31374`
Pinning the digest makes another installation reproducible. Review and update
the Rancher version deliberately rather than running an unpinned `latest` image
@ -68,6 +70,8 @@ docker run -d \
--restart=unless-stopped \
-p 127.0.0.1:8000:80 \
-p 127.0.0.1:8443:443 \
-p 127.0.0.1:30080:30080 \
-p 127.0.0.1:31374:31374 \
-v /opt/rancher:/var/lib/rancher \
-v "$HOME/.config/kubectl/registries.yaml:/etc/rancher/k3s/registries.yaml:ro" \
--privileged \
@ -75,9 +79,10 @@ docker run -d \
rancher/rancher@sha256:5f6c4dc52a05e0c400b53c08bf778ca55790f277e443b5881269158499b7ebe5
```
The explicit `127.0.0.1` bindings prevent ports `8000` and `8443` from being
published directly to the internet. Nginx on the same server can still reach
them.
The explicit `127.0.0.1` bindings prevent Rancher and application NodePorts
from being published directly to the internet. Nginx on the same server can
still reach them. Docker cannot add port mappings to an existing container, so
new NodePorts must be included when recreating the Rancher container.
## 4. Verify the installation
@ -95,10 +100,16 @@ docker exec rancher kubectl get nodes -o wide
Expected results:
- The container is running with restart policy `unless-stopped`.
- Only `127.0.0.1:8000` and `127.0.0.1:8443` are published.
- Only loopback ports `8000`, `8443`, `30080`, and `31374` are published.
- `https://127.0.0.1:8443/ping` returns `pong`.
- The embedded `local-node` reports `Ready`.
After deploying Go Guess, verify the application NodePort:
```bash
curl --fail http://127.0.0.1:30080/api/health
```
Retrieve the one-time bootstrap password locally, open
`https://127.0.0.1:8443`, and immediately choose a permanent administrator
password: