Deploy Stacks Miner Node

Stacks node requires a Bitcoin node to connect to on the back-end for Proof of Transfer. You can deploy a Bitcoin node using Kotal operator like we did in this guide. In this tutorial, we will be using Bitcoin node hosted by Stacks Foundation.

Make sure Bitcoin node is fully synced before deploying your Stacks node.

Generating Miner Private Key

Don't use the following Miner private key in production!

Generate Key chain using Stacks CLI tool. Stacks CLI can be installed using:

npm install -g @stacks/cli

Generate key chain using:

stx make_keychain

It will return an output similar to the following

  "mnemonic": "blue news bid also tell vault blame tonight crumble history tribe anxiety arch stove usage eight stick firm weapon wet chapter gravity seat idle",
  "keyInfo": {
    "privateKey": "7a3ef70a4a3ff3c389818ac11abec24b20ffbe3fb2cf6f71e947367a4ddbec6601",
    "btcAddress": "15HcDuW1W2TqEe9mVER9ceJYtqMAED26jp",
    "wif": "L1KLjY5xMGUSSV9cfE9VoKRdVt3D1zJxoJwPVLHfgRNS1ETGUSvr",
    "index": 0

Store privateKey from the output above into a Kubernetes secret in data field called key:

kubectl create secret generic seed-private-key --from-literal=key=7a3ef70a4a3ff3c389818ac11abec24b20ffbe3fb2cf6f71e947367a4ddbec6601

Bitcoin node JSON-RPC user password

Let's store Stacks Foundation Bitcoin node JSON-RPC password in a Kubernetes secret to be used by our node:

apiVersion: v1
kind: Secret
  name: bitcoin-node-rpc-password
  password: blockstacksystem

Apply bitcoin-node-rpc-password.yaml to create the password secret:

kubectl apply -f bitcoin-node-rpc-password.yaml

Deploy Stacks Miner Node

The following manifest describes a Stacks node that syncs Stacks mainnet network: mainnet, and connects to the bitcoin node using configurations in bitcoinNode: ... for Proof of Transfer, and loading miner private key using seedPrivateKeySecretName:

kind: Node
  name: stacks-node
  network: mainnet
  seedPrivateKeySecretName: seed-private-key
    rpcPort: 8332
    p2pPort: 8333
    rpcUsername: blockstack
    rpcPasswordSecretName: bitcoin-node-rpc-password

Apply stacks.yaml manifest:

kubectl apply -f stacks.yaml

Kotal operator will notice your stacks-node and will create all the necessary pods, persistent volumes, services, configmaps, and secrets neccessary.

You can fetch the deployed Stacks Node using:

kubectl get nodes.stacks

It will return an output similar to the following:

stacks-node     mainnet    stacks    true

Note Miner is true in the previous output 🔥

Fetch Node Logs

Get the pods that has been created by Kotal for the node:

kubectl get pods

It will return an output similar to the following:

stacks-node-0    1/1     Running   0          1m

Get the logs of the running node:

kubectl logs -f stacks-node-0

It will return node logs similar to the following:

INFO [1649610683.233993] [testnet/stacks-node/src/] [main] Loading config at path /home/stacks/kotal-config/config.toml
INFO [1649610683.795606] [testnet/stacks-node/src/run_loop/] [main] Start syncing Bitcoin headers, feel free to grab a cup of coffee, this can take a while
INFO [1649610686.606279] [src/burnchains/bitcoin/] [main] Syncing Bitcoin headers: 0.3% (2000 out of 731294)
INFO [1649610687.625014] [src/burnchains/bitcoin/] [main] Syncing Bitcoin headers: 0.5% (4000 out of 731294)
INFO [1649610688.634560] [src/burnchains/bitcoin/] [main] Syncing Bitcoin headers: 0.8% (6000 out of 731294)
INFO [1649610689.677533] [src/burnchains/bitcoin/] [main] Syncing Bitcoin headers: 1.1% (8000 out of 731294)
INFO [1649610690.737928] [src/burnchains/bitcoin/] [main] Syncing Bitcoin headers: 1.4% (10000 out of 731294)
INFO [1649610691.745002] [src/burnchains/bitcoin/] [main] Syncing Bitcoin headers: 1.6% (12000 out of 731294)
INFO [1649610692.789689] [src/burnchains/bitcoin/] [main] Syncing Bitcoin headers: 1.9% (14000 out of 731294)

Finally you can delete the node by:

kubectl delete -f stacks.yaml

Kubernetes garbage collector will delete all the resources that has been created by Stacks Node controller.

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