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updated instructions for setting up a validator
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# How to run a Validator node | ||
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### Prerequisites | ||
Registering and running a validator node requires a few steps to be followed. | ||
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Install [Docker](https://www.docker.com/get-started/) | ||
* Create a wallet for the validator | ||
* Set up a node to run the validator | ||
* Register a validator on the chain | ||
* Register a validator node public key | ||
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Install [Docker Engine](https://docs.docker.com/engine/install/) | ||
This guide will help you set up a validator node using Docker. | ||
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Install [docker-compose](https://github.com/docker/compose) as well if it is not installed with Docker by default | ||
## Prerequisites | ||
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* Install [Docker](https://www.docker.com/get-started/) | ||
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* Install [Docker Engine](https://docs.docker.com/engine/install/) | ||
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* Install [docker-compose](https://github.com/docker/compose) as well if it is not installed with Docker by default | ||
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Get the official Docker Image: `iconloop/icon2-node` | ||
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CPU: minimum 4core, recommend 8core + | ||
RAM: minimum 16GB, recommend 32GB + | ||
DISK : minimum SSD 1.5TB, recommend SSD 2TB + | ||
DISK : minimum SSD 2.5TB, recommend SSD 3TB + | ||
Network: minimum 1Gbps, recommend 2Gbps + | ||
External Communications | ||
TCP 7100: TCP port used for peer-to-peer connection between peer nodes. | ||
TCP 9000: JSON-RPC or RESTful API port serving application requests.P-Rep must allow TCP connections to port 7100 and 9000 of an external host. ( Use 0.0.0.0/0 for a source from any network ) | ||
``` | ||
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### Getting started | ||
## Creating a wallet for the validator | ||
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The first step is to create a wallet and keystore file. You can follow the instructions in this [guide](./how-to-create-a-wallet-account.mdx) to create a wallet. | ||
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This wallet needs to be funded with enough ICX to be able to register as a validator, the registration fee is 2,000 ICX and you will also need a small amount of ICX to pay for the transaction fees. | ||
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## Setting up the node | ||
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Setup the node validator and wait for it to fully sync up before registering the validator wallet as a validator on the ICON network. | ||
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Create a working folder in your server on a disk with enough space as detailed in the system requirements previsouly mentioned. | ||
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For this tutorial we will use the following folder structure: | ||
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``` | ||
mkdir ~/icon-node | ||
``` | ||
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Change to the newly created directory | ||
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``` | ||
cd ~/icon-node | ||
``` | ||
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Create inside the folder the following directories and files: | ||
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``` | ||
mkdir config | ||
touch docker-compose.yml | ||
``` | ||
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Save the keystore file (wallet) that was previously createdfor the validator in the `config` directory. | ||
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At this point your folder structure should look like this: | ||
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``` | ||
. | ||
├── config | ||
│ └── keystore.json | ||
└── docker-compose.yml | ||
``` | ||
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Open docker-compose.yml in a text editor and add the following content: | ||
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environment: | ||
SERVICE: "MainNet" # MainNet, SejongNet ## network type | ||
GOLOOP_LOG_LEVEL: "debug" # trace, debug, info, warn, error, fatal, panic | ||
KEY_STORE_FILENAME: "INPUT_YOUR_KEY_STORE_FILENAME" # e.g. keystore.json read a config/keystore.json | ||
# e.g. "/goloop/config/keystore.json" read a "config/keystore.json" of host machine | ||
KEY_STORE_FILENAME: "keystore.json" | ||
KEY_PASSWORD: "INPUT_YOUR_KEY_PASSWORD" | ||
FASTEST_START: "true" # It can be restored from latest Snapshot DB. | ||
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- 7100:7100 | ||
``` | ||
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Start up | ||
Run the following command to start the ICON2 node and wait for the entire ledger to locally sync up. | ||
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``` | ||
$ docker-compose pull && docker-compose up -d | ||
``` | ||
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To see the logs of the ICON2 node you can execute | ||
you can monitor the process by checking the logs file that are created in the `logs` directory. | ||
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``` | ||
$ tail -f logs/booting.log | ||
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$ tail -f logs/goloop.log | ||
``` | ||
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The directories(data, config, icon, logs …) are created by docker engine, but config directory needs to importing your keystore file. | ||
The following folder structure will be created: | ||
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``` | ||
. | ||
├── docker-compose.yml | ||
├── config # configuration files | ||
│ └── keystore.json # Import the your keystore file | ||
├── config # configuration files | ||
│ └── keystore.json # Import your keystore file | ||
├── data # block data | ||
│ ├── 1 | ||
│ ├── auth.json | ||
│ ├── cli.sock | ||
│ ├── ee.sock | ||
│ └── rconfig.json | ||
├── logs # log files | ||
│ ├── booting.log | ||
│ ├── health.log # health check log | ||
│ ├── chain.log # goloop chain action logs | ||
│ ├── dowload.log | ||
│ └── dowload_error.log | ||
│ └── goloop.log | ||
├── icon # icon1 data for migrate. If a migration is completed, it will be auto-remove | ||
│ └── migrator_bm | ||
└── logs # log files | ||
├── booting.log | ||
├── health.log # health state log | ||
├── chain.log # goloop chain action logs | ||
├── download.log | ||
├── download_error.log # download | ||
└── goloop.log # goloop's log file | ||
``` | ||
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### Docker environments settings | ||
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| GOLOOP\_LOG\_LEVEL | debug | str | false | Log Level - (trace,debug,info,warn,error,fatal,panic | | ||
| LOG\_OUTPUT\_TYPE | file | str | false | sec - check interval for monitoring | | ||
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## Registering a validator on chain | ||
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### Registering a validator node by calling the registerPrep function | ||
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Once the wallet is funded you can register as a validator node using the [registerPrep](https://github.com/icon-project/goloop/blob/master/doc/icon_chainscore_api.md#registerprep) function from the JSON-RPC API. | ||
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This can be done directly from the tracker, using goloop or calling the RPC method directly. | ||
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#### Using the tracker | ||
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The easiest way to sign this transaction is to load up the keystore in a browser wallet ([Hana Wallet](https://hanawallet.io/)) and sign the transaction directly from the tracker by login in first with your wallet and then going to the contract page and calling the `registerPrep` function. | ||
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https://tracker.icon.community/contract/cx0000000000000000000000000000000000000000#contract | ||
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![registerPrep](/images/registering-validator-with-tracker.png) | ||
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#### Using goloop cli or preptools | ||
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Goloop CLI and the preptools are 2 command line utilities that can be used to interact with the ICON blockchain. | ||
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These can be used to sign the transaction and call the `registerPrep` function. | ||
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https://github.com/icon-project/goloop/blob/master/doc/goloop_cli.md#goloop-rpc-sendtx-call | ||
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https://github.com/icon-project/preptools/blob/master/README.md#registerprep | ||
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#### Using the JSON-RPC API | ||
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Calling the method from the JSON-RPC API directly requires sending a signed transaction with the following parameters: | ||
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> Request | ||
```javascript | ||
{ | ||
"jsonrpc": "2.0", | ||
"id": 1234, | ||
"method": "icx_sendTransaction", | ||
"params": { | ||
"value": "0x6c6b935b8bbd400000", | ||
"data": { | ||
"method": "registerPRep", | ||
"params": { | ||
"name": "ABC Node", | ||
"country": "KOR", | ||
"city": "Seoul", | ||
"email": "[email protected]", | ||
"website": "https://abc.example.com/", | ||
"details": "https://abc.example.com/details/", | ||
"p2pEndpoint": "abc.example.com:7100", | ||
"nodeAddress": "hxe7af5fcfd8dfc67530a01a0e403882687528dfcb" | ||
} | ||
}, | ||
... | ||
} | ||
} | ||
``` | ||
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#### Parameters | ||
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| Key | VALUE Type | Required | Description | | ||
| :--- | :--- | :--- | :--- | | ||
| name | T\_STRING | true | P-Rep name "ABC Node" | | ||
| email | T\_STRING | true | P-Rep email "[email protected]" | | ||
| country | T\_STRING | true | [ISO 3166-1 ALPHA-3](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-3) "KOR", "USA", "CHN" | | ||
| city | T\_STRING | true | "Seoul", "New York", "Paris" | | ||
| website | T\_STRING | true | P-Rep homepage url "[https://abc.example.com](https://abc.example.com)" | | ||
| detailes | T\_STRING | true | Url including P-Rep detail information "[https://abc.example.com/details/](https://abc.example.com/details/)" | | ||
| p2pEndpoint | T\_STRING | true | Network info used for connecting among P-Rep nodes "123.45.67.89:7100", "node.example.com:7100" | | ||
| nodeAddress | T\_STRING | False | Node Key for only consensus "hxe7af5fcfd8dfc67530a01a0e403882687528dfcb" | | ||
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The following guide explains how to interact with the ICON JSON-RPC API: [ICON JSON-RPC API](./how-to-use-the-json-rpc-api.mdx) | ||
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### Node Grades | ||
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Node grades are another term for node levels. | ||
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| 0x1 | Sub-Validator | Register your node as a sub-validator for block production and validation and network governance delegate | | ||
| 0x0 | Main Validator | Register your node as a validator for block production and validation and network governance delegate | | ||
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### Further Resources | ||
## Registering a validator node public key | ||
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After the node is up and running, you can register the public key of the node by following the instructions in this [guide](./how-to-run-a-validator-node/register-prep-node-public-key.mdx). | ||
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## Final steps | ||
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After completing the above steps your validator node should become an active validator on the ICON network after 48 hours of being registered. | ||
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[Delegate tools](https://github.com/icon-project/preptools/) | ||
If you need any help or assistance during the process you can reach out to the ICON community in our discord channel: [ICON Discord](/contact) |
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