# ydaemon ops

https://github.com/yearn/ydaemon

## domains
https://ydaemon.yearn.fi
https://ydaemon.yearn.farm
https://ydaemon.dread.cat

## stats @ handover

## production config
**ydaemon @ handover** - linode, dedicated 16 gb $144/mo, 8 CPU, 320 GB, 16 GB RAM 6 TB Transfer, 40 Gbps in / 6 Gbps out

**ydaemon 2** - gcp, e2-custom-8-16384 (8 vCPUs, 16 GB Memory) 320 GB HD, debian 12

## production setup

### env

sudo apt update && sudo apt upgrade
sudo apt install git nginx certbot python3-certbot-nginx btop

### go

wget https://go.dev/dl/go1.24.2.linux-amd64.tar.gz
sudo rm -rf /usr/local/go
sudo tar -C /usr/local -xzf go1.24.2.linux-amd64.tar.gz
echo 'export PATH=$PATH:/usr/local/go/bin' >> ~/.profile
source ~/.profile
go version

### build ydaemon

mkdir git && cd git
git clone [e-mail]:yearn/ydaemon.git && cd ydaemon
go build -o yDaemon -ldflags "-X main.version=`git rev-parse HEAD`" ./cmd

### config ydaemon

nano ~/git/ydaemon/.env

RPC_URI_FOR_1=""
RPC_URI_FOR_10=""
RPC_URI_FOR_100=""
RPC_URI_FOR_137=""
RPC_URI_FOR_250=""
RPC_URI_FOR_8453=""
RPC_URI_FOR_42161=""

SCAN_API_KEY_FOR_1=""
SCAN_API_KEY_FOR_10=""
SCAN_API_KEY_FOR_100=""
SCAN_API_KEY_FOR_137=""
SCAN_API_KEY_FOR_250="ftmscanisded"
SCAN_API_KEY_FOR_8453=""
SCAN_API_KEY_FOR_42161=""

KONG_POSTGRES_DSN=""

CG_DEMO_KEYS="x,y,z"

SUBGRAPGH_FOR_1=""
SUBGRAPGH_FOR_10=""
SUBGRAPGH_FOR_42161=""

CG_DEMO_KEYS -- a comma separated list of demo api keys for coingecko. use at least 2. keys rotate to work around rate limits.

### run ydaemon as a server

`sudo nano /etc/systemd/system/ydaemon.service`

[Unit]
Description=ydaemon

[Service]
Type=simple
Restart=always
RestartSec=2s
EnvironmentFile=/home/murdertxxth/git/ydaemon/.env
ExecStart=/home/murdertxxth/git/ydaemon/yDaemon
WorkingDirectory=/home/murdertxxth/git/ydaemon
User=root
Group=root

[Install]
WantedBy=multi-user.target

sudo systemctl daemon-reload
sudo systemctl enable --now ydaemon.service

#### config logs
limit journaling so it doesn't eat the hard drive =)

`sudo nano /etc/systemd/journald.conf`

SystemMaxUse=500M        # Max total size of logs
SystemKeepFree=100M      # Leave at least this much disk space free
SystemMaxFileSize=100M   # Max size of individual journal files
SystemMaxFiles=10        # Max number of journal files

`sudo systemctl restart systemd-journald`

#### cheats

# status
systemctl status ydaemon.service

# logs
journalctl -u ydaemon.service -f

# reset logs
sudo journalctl --rotate && sudo journalctl --vacuum-time=1s

# stop
sudo systemctl stop ydaemon.service

# start
sudo systemctl start ydaemon.service

# restart
sudo systemctl restart ydaemon.service

### nginx x letsencrypt

sudo rm /etc/nginx/sites-enabled/default
sudo nano /etc/nginx/sites-available/ydaemon

server {
  listen 80;
  server_name ydaemon.yearn.fi ydaemon.yearn.farm etc;

  location / {
    return 301 https://$host$request_uri;
  }
}

sudo nginx -t
sudo systemctl reload nginx

sudo certbot --nginx -d ydaemon.yearn.fi -d ydaemon.yearn.farm -d etc
sudo nginx -t
sudo systemctl reload nginx

### ops

#### restart

sudo systemctl stop ydaemon.service
sudo systemctl start ydaemon.service

after restart, vaults are back online within several seconds. prices and aprs take several minutes to come back online after cold start.

#### Add new chain
eg [Add sonic](https://github.com/yearn/ydaemon/commit/f768d3bd4a1193a48e718f6abcb6ad7d6cdcb247)

#### testing

curl https://ydaemon.yearn.fi
curl https://ydaemon.yearn.fi/1/prices/all
curl https://ydaemon.yearn.fi/1/vaults/all
curl https://ydaemon.yearn.fi/rotki/list/vaults

### .env changes

# make updates to .env
sudo systemctl daemon-reload