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Use SSH tunnels instead of a public load balancer for accessing the cluster

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It was tricky to get the web preview expierince to work smoothly on non-standard HTTP ports. But, I was able to figure out the link the web preview button uses under-the-hood, and add custom query string params.
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Kent 'picat' Gruber 2020-07-17 14:26:32 -04:00
parent 3372f475e4
commit 5600cb6ce5
1 changed files with 22 additions and 17 deletions
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39
terraform/gcp/README.md
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@ -215,33 +215,38 @@ terraform apply -auto-approve -var="project=${GOOGLE_PROJECT}" -var="credentials
## Access the Cluster
You can now access the cluster in several ways.
You can now access the cluster using [SSH](https://en.wikipedia.org/wiki/Secure_Shell) in several ways.
### UI
### SSH
Put the `hashistack_load_balancer_external_ip` Terraform Output in your web browser to access the UI.
### CLI
Export following environment variables:
Use `gcloud` to SSH into one of the servers to run `nomad`, `consul`, or `vault` commands:
```console
export HASHISTACK_LB_EXTERNAL_IP=$(terraform output -json | jq -r '.hashistack_load_balancer_external_ip.value')
export NOMAD_ADDR="http://$HASHISTACK_LB_EXTERNAL_IP:4646"
export CONSUL_HTTP_ADDR="http://$HASHISTACK_LB_EXTERNAL_IP:8500"
export VAULT_ADDR="http://$HASHISTACK_LB_EXTERNAL_IP:8200"
gcloud compute ssh hashistack-server-0 --zone=us-east1-c --tunnel-through-iap
```
The next steps will show you example commands.
### SSH Tunnel with Cloud Shell Web Preview
### SSH
To access the Nomad, Consul, or Vault web UI inside the cluster, create an [SSH tunnel](https://cloud.google.com/community/tutorials/ssh-tunnel-on-gce) using `gcloud`. To open up tunnels to *all* of the UIs available in the cluster, run these commands which will start each SSH tunnel as a background process in your current shell:
Use `gcloud` to SSH into one of the servers:
```bash
gcloud compute ssh hashistack-server-0 --zone=us-east1-c
```console
gcloud compute ssh hashistack-server-0 --zone=us-east1-c --tunnel-through-iap -- -f -N -L 127.0.0.1:4646:127.0.0.1:4646
gcloud compute ssh hashistack-server-0 --zone=us-east1-c --tunnel-through-iap -- -f -N -L 127.0.0.1:8200:127.0.0.1:8200
gcloud compute ssh hashistack-server-0 --zone=us-east1-c --tunnel-through-iap -- -f -N -L 127.0.0.1:8500:127.0.0.1:8500
```
After running those commands, you can now click any of the following links to open up a Web Preview using Cloud Shell:
* [Nomad](https://ssh.cloud.google.com/devshell/proxy?authuser=0&port=4646&environment_id=default)
* [Vault](https://ssh.cloud.google.com/devshell/proxy?authuser=0&port=8200&environment_id=default)
* [Consul](https://ssh.cloud.google.com/devshell/proxy?authuser=0&port=8500&environment_id=default)
If you're **not** using Cloud Shell, you can use any of these links:
* [Nomad](http://127.0.0.1:4646)
* [Vault](http://127.0.0.1:8200)
* [Consul](http://127.0.0.1:8500)
## Next Steps
Click [here](https://github.com/hashicorp/nomad/blob/master/terraform/README.md#test) for next steps.