Add ops instructions to setup snowball backend stack

ops/deployments-from-scratch.md

@@ -1234,6 +1234,110 @@
 
 </details>
 
+## snowballtools-base-api-stack
+
+* Stack: <https://git.vdb.to/cerc-io/snowballtools-base-api-stack/src/branch/main/stack-orchestrator/stacks/snowballtools-base-backend>
+
+* Source repos:
+  * <https://git.vdb.to/cerc-io/snowballtools-base>
+
+* Target dir: `/srv/snowball/snowball-deployment`
+
+* Cleanup an existing deployment if required:
+
+  ```bash
+  cd /srv/snowball
+
+  # Stop the deployment
+  laconic-so deployment --dir snowball-deployment stop --delete-volumes
+
+  # Remove the deployment dir
+  sudo rm -rf snowball-deployment
+
+  # Remove the existing spec file
+  rm snowball-spec.yml
+  ```
+
+### Setup
+
+* Clone the stack repo:
+
+  ```bash
+  laconic-so fetch-stack git.vdb.to/cerc-io/snowballtools-base-api-stack --pull
+
+  # This should clone the testnet-laconicd-stack repo at `/home/dev/cerc/snowballtools-base-api-stack`
+  ```
+
+* Clone required repositories:
+
+  ```bash
+  laconic-so --stack ~/cerc/snowballtools-base-api-stack/stack-orchestrator/stacks/snowballtools-base-backend setup-repositories --git-ssh --pull
+
+  # This should clone the snowballtools-base repo at `/home/dev/cerc/snowballtools-base`
+  ```
+
+* Build the container images:
+
+  ```bash
+  laconic-so --stack ~/cerc/snowballtools-base-api-stack/stack-orchestrator/stacks/snowballtools-base-backend build-containers --force-rebuild
+
+  # This should create the Docker images: "cerc/snowballtools-base-backend" and "cerc/snowballtools-base-backend-base"
+  ```
+
+### Deployment
+
+* Create a spec file for the deployment:
+
+  ```bash
+  cd /srv/snowball
+
+  laconic-so --stack ~/cerc/snowballtools-base-api-stack/stack-orchestrator/stacks/snowballtools-base-backend deploy init --output snowball-deployment-spec.yml --config SNOWBALL_BACKEND_CONFIG_FILE_PATH=/config/local.toml
+  ```
+
+* Edit network in the spec file to map container ports to host ports:
+
+  ```bash
+  network:
+    ports:
+      snowballtools-base-backend:
+      - '8000:8000'
+  ```
+
+* Create a deployment from the spec file:
+
+  ```bash
+  laconic-so --stack ~/cerc/snowballtools-base-api-stack/stack-orchestrator/stacks/snowballtools-base-backend deploy create --deployment-dir snowball-deployment --spec-file snowball-deployment-spec.yml
+  ```
+
+* Create a file at `snowball-deployment/data/config/local.toml` with the config for the server:
+
+  ```bash
+  [server]
+  host = "0.0.0.0"
+  port = 8000
+  gqlPath = "/graphql"
+  [server.session]
+    secret = "<redacted>"
+    appOriginUrl = "https://dashboard.pwa.laconic.com"
+    trustProxy = false
+  ...
+  ```
+
+### Start
+
+* Start the deployment:
+
+  ```bash
+  laconic-so deployment --dir snowball-deployment start
+  ```
+
+* Check status:
+
+  ```bash
+  # Follow logs for snowball container
+  laconic-so deployment --dir snowball-deployment logs snowballtools-base-backend -f
+  ```
+
 ## Domains / Port Mappings
 
 ```bash