add optimism mainnet installation script

optimism/OP-mainnet-fullnode-install.md

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+# Optimism Node Installation Guide
+
+This guide details the steps to set up an Optimism node with Docker, including the configuration to connect with the Ethereum mainnet via Alchemy and essential management commands.
+
+## Prerequisites
+
+Ensure your system meets these requirements:
+- 16GB+ RAM
+- 2TB SSD (NVME Recommended)
+- 100mb/s+ Download
+
+## Step 1: Install Docker and Docker Compose
+
+### Install Docker and Docker Compose
+
+```bash
+sudo apt update
+sudo apt install -y curl gnupg ca-certificates lsb-release
+
+### Download the docker gpg file to Ubuntu and docker compose support to the Ubuntu's packages list
+sudo mkdir -p /etc/apt/keyrings
+curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
+echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
+
+### Install docker and docker compose on Ubuntu
+sudo apt-get update
+sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin
+
+sudo usermod -aG docker $(whoami)
+```
+
+Verify the installations:
+
+```bash
+docker --version
+docker-compose --version
+```
+
+## Step 2: Sign Up for Alchemy
+
+Create an account at [alchemy.com](https://alchemy.com/) to get your Ethereum mainnet RPC endpoint.
+
+## Step 3: Clone the Repository
+
+```bash
+git clone https://github.com/smartcontracts/simple-optimism-node.git
+cd simple-optimism-node
+```
+
+## Step 4: Configure Environment Variables
+
+```bash
+cp .env.example .env
+nano .env
+```
+
+Update the `.env` file with your Alchemy endpoint and the following settings:
+
+```dotenv
+NETWORK_NAME=op-mainnet
+NODE_TYPE=full
+HEALTHCHECK__REFERENCE_RPC_PROVIDER=https://mainnet.optimism.io
+OP_GETH__HISTORICAL_RPC=https://mainnet.optimism.io
+
+OP_NODE__RPC_ENDPOINT=<Your-Alchemy-ETH-Mainnet-RPC-Endpoint>
+OP_NODE__RPC_TYPE=alchemy
+```
+
+## Step 5: Start the Node
+
+```bash
+docker-compose up -d
+```
+
+## Step 6: Monitor Your Node
+
+To check the logs and monitor the node's activity:
+
+```bash
+docker-compose logs -f
+```
+
+## Node Management
+
+- **View Logs**: To view the node's logs, use the command provided above.
+- **Stop the Node**: To stop your Optimism node, run:
+
+```bash
+docker-compose down
+```
+
+- **Remove the Node**: If you wish to remove your node completely, including all data:
+
+```bash
+docker-compose down --volumes
+```
+
+This will stop and remove all containers, networks, and volumes associated with your Optimism node.
+
+## Updating the Node
+
+To update your node, fetch the latest changes and restart the node:
+
+```bash
+git pull
+docker-compose down
+docker-compose up -d
+```