Add demo steps to run validator nodes setup locally

demo.md

@@ -0,0 +1,79 @@
+# demo
+
+## Prerequisites
+
+- [ansible](playbooks/README.md#ansible-installation)
+- [laconic-so](https://github.com/cerc-io/stack-orchestrator/?tab=readme-ov-file#install)
+
+## Run node
+
+- Fetch the stack:
+
+  ```bash
+  laconic-so fetch-stack git.vdb.to/cerc-io/laconicd-stack --git-ssh --pull
+  ```
+
+  This command clones the entire repository into the `~/cerc` folder, which includes the genesis file published by the first validator.
+
+- Copy the example variables file:
+
+  ```bash
+  cp ~/cerc/laconicd-stack/playbooks/validator/validator-vars.example.yml ~/cerc/laconicd-stack/playbooks/validator/validator-vars.yml
+  ```
+
+- Check first validator node address using:
+
+  ```bash
+  laconic-so deployment --dir $DATA_DIRECTORY/$MAINNET_DEPLOYMENT_DIR exec laconicd 'echo $(laconicd cometbft show-node-id)@host.docker.internal:26656'
+  ```
+
+  NOTE: Make sure that DATA_DIRECTORY and MAINNET_DEPLOYMENT_DIR values are that of first validator deployment
+
+- Update `cerc_peers` in `~/cerc/laconicd-stack/playbooks/validator/validator-vars.yml`:
+
+  ```bash
+  cerc_peers: "<node-id>@host.docker.internal:26656"
+  ```
+
+- Export the data directory and mainnet deployment directory as environment variables:
+
+  ```bash
+  # Parent directory where the deployment directory will live
+  export DATA_DIRECTORY=
+
+  # Set mainnet deployment directory
+  # for eg: mainnet-validator-deployment
+  export MAINNET_DEPLOYMENT_DIR=
+  ```
+
+- Update port mappings in `~/cerc/laconicd-stack/playbooks/validator/templates/specs/spec-template.yml.j2` with:
+
+  ```bash
+  network:
+    ports:
+      laconicd:
+        - '3060:6060'
+        - '36657:26657'
+        - '36656:26656'
+        - '3473:9473'
+        - '3090:9090'
+        - '3317:1317'
+  ```
+
+- Update permission for `genesis/mainnet-genesis.json`:
+
+  ```bash
+  sudo chmod 777 ~/cerc/laconicd-stack/genesis/mainnet-genesis.json
+  ```
+
+- Run ansible playbook to set up and start your validator node:
+
+  ```bash
+  ansible-playbook -i localhost, -c local ~/cerc/laconicd-stack/playbooks/validator/run-validator.yml
+  ```
+
+- Check logs to ensure that node is running:
+
+  ```bash
+  laconic-so deployment --dir $DATA_DIRECTORY/$MAINNET_DEPLOYMENT_DIR logs laconicd -f
+  ```