134 lines
5.2 KiB
Markdown
134 lines
5.2 KiB
Markdown
# Join the Testnet
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::: tip Current Testnet
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See the [testnet repo](https://github.com/cosmos/testnets) for
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information on the latest testnet, including the correct version
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of the Cosmos-SDK to use and details about the genesis file.
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:::
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Please ensure you have the [Cosmos SDK](/getting-started/installation.md) installed. If you ran a full node on a previous testnet, please skip to [Upgrading From Previous Testnet](#upgrading-from-previous-testnet).
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## Setting Up a New Node
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These instructions are for setting up a brand new full node from scratch.
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First, initialize the node and create the necessary config files:
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```bash
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gaiad init --skip-genesis --name <your_custom_name>
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```
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::: warning Note
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Only ASCII characters are supported for the `--name`. Using Unicode characters will render your node unreachable.
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:::
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You can edit this `name` later, in the `~/.gaiad/config/config.toml` file:
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```toml
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# A custom human readable name for this node
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moniker = "<your_custom_name>"
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```
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You can edit the `~/.gaiad/config/gaiad.toml` file in order to enable the anti spam mechanism and reject incoming transactions with less than a minimum fee:
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```
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# This is a TOML config file.
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# For more information, see https://github.com/toml-lang/toml
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##### main base config options #####
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# Validators reject any tx from the mempool with less than the minimum fee per gas.
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minimum_fees = ""
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```
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Your full node has been initialized! Please skip to [Genesis & Seeds](#genesis-seeds).
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## Upgrading From Previous Testnet
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These instructions are for full nodes that have ran on previous testnets and would like to upgrade to the latest testnet.
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### Reset Data
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First, remove the outdated files and reset the data.
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```bash
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rm $HOME/.gaiad/config/addrbook.json $HOME/.gaiad/config/genesis.json
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gaiad unsafe-reset-all
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```
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Your node is now in a pristine state while keeping the original `priv_validator.json` and `config.toml`. If you had any sentry nodes or full nodes setup before,
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your node will still try to connect to them, but may fail if they haven't also
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been upgraded.
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::: danger Warning
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Make sure that every node has a unique `priv_validator.json`. Do not copy the `priv_validator.json` from an old node to multiple new nodes. Running two nodes with the same `priv_validator.json` will cause you to double sign.
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:::
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### Software Upgrade
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Now it is time to upgrade the software:
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```bash
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cd $GOPATH/src/github.com/cosmos/cosmos-sdk
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git fetch --all && git checkout master
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make update_tools && make get_vendor_deps && make install
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```
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Note we use `master` here since it contains the latest stable release.
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See the [testnet repo](https://github.com/cosmos/testnets)
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for details on which version is needed for which testnet,
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and the [SDK release page](https://github.com/cosmos/cosmos-sdk/releases)
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for details on each release.
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Your full node has been cleanly upgraded!
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## Genesis & Seeds
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### Copy the Genesis File
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Fetch the testnet's `genesis.json` file into `gaiad`'s config directory.
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```bash
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mkdir -p $HOME/.gaiad/config
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curl https://raw.githubusercontent.com/cosmos/testnets/master/latest/genesis.json > $HOME/.gaiad/config/genesis.json
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```
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Note we use the `latest` directory in the [testnets repo](https://github.com/cosmos/testnets)
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which contains details for the latest testnet. If you are connecting to a different testnet, ensure you
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get the right files.
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### Add Seed Nodes
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Your node needs to know how to find peers. You'll need to add healthy seed nodes to `$HOME/.gaiad/config/config.toml`. Here are some seed nodes you can use:
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```toml
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# Comma separated list of seed nodes to connect to
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seeds = "718145d422a823fd2a4e1e36e91b92bb0c4ddf8e@gaia-testnet.coinculture.net:26656,5922bf29b48a18c2300b85cc53f424fce23927ab@67.207.73.206:26656,7c8b8fd03577cd4817f5be1f03d506f879df98d8@gaia-7000-seed1.interblock.io:26656,a28737ff02391a6e00a1d3b79befd57e68e8264c@gaia-7000-seed2.interblock.io:26656,987ffd26640cd03d08ed7e53b24dfaa7956e612d@gaia-7000-seed3.interblock.io:26656"
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```
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If those seeds aren't working, you can find more seeds and persistent peers on the [Cosmos Explorer](https://explorecosmos.network/nodes). Open the the `Full Nodes` pane and select nodes that do not have private (`10.x.x.x`) or [local IP addresses](https://en.wikipedia.org/wiki/Private_network). The `Persistent Peer` field contains the connection string. For best results use 4-6.
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For more information on seeds and peers, you can [read this](https://github.com/tendermint/tendermint/blob/develop/docs/using-tendermint.md#peers).
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## Run a Full Node
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Start the full node with this command:
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```bash
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gaiad start
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```
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Check that everything is running smoothly:
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```bash
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gaiacli status
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```
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View the status of the network with the [Cosmos Explorer](https://explorecosmos.network). Once your full node syncs up to the current block height, you should see it appear on the [list of full nodes](https://explorecosmos.network/validators). If it doesn't show up, that's ok--the Explorer does not connect to every node.
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## Upgrade to Validator Node
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You now have an active full node. What's the next step? You can upgrade your full node to become a Cosmos Validator. The top 100 validators have the ability to propose new blocks to the Cosmos Hub. Continue onto [the Validator Setup](../validators/validator-setup.md).
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