Implement stack for solana proxy

stack/README.md

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+# solana-proxy-stack
+
+[solana-proxy stack documentation](./stack-orchestrator/stack/solana-proxy/README.md)

stack/stack-orchestrator/compose/docker-compose-solana-proxy.yml

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+services:
+  # Builds and serves the solana proxy
+  solana-proxy:
+    restart: unless-stopped
+    image: cerc/solana-proxy:local
+    environment:
+      # Provider endpoints and auth (optional)
+      ALCHEMY_API_KEY: ${ALCHEMY_API_KEY}
+      HELIUS_API_KEY: ${HELIUS_API_KEY}
+      QUICKNODE_ENDPOINT: ${QUICKNODE_ENDPOINT}
+      QUICKNODE_TOKEN: ${QUICKNODE_TOKEN}
+
+      # Proxy settings
+      CACHE_SIZE_GB: 100
+      DISABLE_CACHE: ${DISABLE_CACHE}
+      BACKOFF_MINUTES: 30
+
+      # Logging
+      LOG_LEVEL: ${LOG_LEVEL:-INFO}
+      ERROR_DB_PATH: /app/errors.db
+    command: ["solana-proxy"]
+    volumes:
+      - solana-proxy-data:/app
+    ports:
+      - "8545"
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8545').read()"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+volumes:
+  solana-proxy-data:

stack/stack-orchestrator/container-build/cerc-solana-proxy/build.sh

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+#!/usr/bin/env bash
+
+# Build cerc/solana-proxy
+source ${CERC_CONTAINER_BASE_DIR}/build-base.sh
+docker build -t cerc/solana-proxy:local ${build_command_args} ${CERC_REPO_BASE_DIR}/solana-proxy

stack/stack-orchestrator/stack/solana-proxy/README.md

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+# solana-proxy
+
+Instructions for running the `solana-proxy` using [laconic-so](https://git.vdb.to/cerc-io/stack-orchestrator)
+
+## Setup
+
+* Clone the stack repo:
+
+  ```bash
+  laconic-so fetch-stack git.vdb.to/LaconicNetwork/solana-proxy
+  ```
+
+* Build the container image:
+
+  ```bash
+  laconic-so --stack ~/cerc/solana-proxy/stack/stack-orchestrator/stack/solana-proxy build-containers
+  ```
+
+  This should create the `cerc/solana-proxy` image locally
+
+## Create a deployment
+
+* Create a spec file for the deployment:
+
+  ```bash
+  laconic-so --stack ~/cerc/solana-proxy/stack/stack-orchestrator/stack/solana-proxy deploy init --output solana-proxy-spec.yml
+  ```
+
+* Edit `network` in the spec file to map container ports to host ports as required:
+
+  ```bash
+  network:
+    ports:
+      solana-proxy:
+        - '8545:8545'
+  ```
+
+* Create a deployment from the spec file:
+
+  ```bash
+  laconic-so --stack ~/cerc/solana-proxy/stack/stack-orchestrator/stack/solana-proxy deploy create --spec-file solana-proxy-spec.yml --deployment-dir solana-proxy-deployment
+  ```
+
+## Configuration
+
+* Inside the `solana-proxy-deployment` deployment directory, open `config.env` file and set following env variables:
+
+  ```bash
+  # Provider endpoints and auth (optional)
+  ALCHEMY_API_KEY=your_alchemy_key_here
+  HELIUS_API_KEY=your_helius_key_here
+  QUICKNODE_ENDPOINT=your_endpoint.quiknode.pro
+  QUICKNODE_TOKEN=your_quicknode_token_here
+
+  # Proxy settings
+  DISABLE_CACHE=true
+  LOG_LEVEL=INFO
+  ```
+
+  The proxy will work without API keys using free endpoints, but adding them provides access to premium providers with better rate limits.
+
+## Start the deployment
+
+```bash
+laconic-so deployment --dir solana-proxy-deployment start
+```
+
+The Solana RPC proxy will be available at:
+- RPC endpoint: <http://localhost:8545>
+- WebSocket endpoint: <ws://localhost:8545/ws>
+
+## Clean up
+
+* Stop the deployment:
+
+  ```bash
+  laconic-so deployment --dir solana-proxy-deployment stop
+  ```

stack/stack-orchestrator/stack/solana-proxy/stack.yml

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+version: "1.0"
+name: solana-proxy
+description: "Solana proxy service"
+containers:
+  - cerc/solana-proxy
+pods:
+  - solana-proxy
+