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skynet-webportal/setup-scripts/README.md

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# Skynet Portal Setup Scripts
This directory contains a setup guide and scripts that will install and
configure some basic requirements for running a Skynet Portal. The assumption is
that we are working with a Debian Buster Minimal system or similar.
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## Initial Setup
You may want to fork this repository and replace ssh keys in
`setup-scripts/support/authorized_keys` and optionally edit the `setup-scripts/support/tmux.conf` and `setup-scripts/support/bashrc` configurations to fit your needs.
### Step 0: stack overview
- dockerized services inside `docker-compose.yml`
- [sia](https://sia.tech) ([docker hub](https://hub.docker.com/r/nebulouslabs/sia)): storage provider, heart of the portal setup
- [caddy](https://caddyserver.com) ([docker hub](https://hub.docker.com/r/caddy/caddy)): reverse proxy (similar to nginx) that handles ssl out of a box and acts as a transparent entry point
- [openresty](https://openresty.org) ([docker hub](https://hub.docker.com/r/openresty/openresty)): nginx custom build, acts as a cached proxy to siad and exposes all api endpoints
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- [health-check](https://github.com/NebulousLabs/skynet-webportal/tree/master/packages/health-check): simple service that runs periodically and collects health data about the server (status and response times) - [read more](https://github.com/NebulousLabs/skynet-webportal/blob/master/packages/health-check/README.md)
- [handshake](https://handshake.org) ([github](https://github.com/handshake-org/hsd)): full handshake node
- [handshake-api](https://github.com/NebulousLabs/skynet-webportal/tree/master/packages/handshake-api): simple API talking to the handshake node - [read more](https://github.com/NebulousLabs/skynet-webportal/blob/master/packages/handshake-api/README.md)
- [webapp](https://github.com/NebulousLabs/skynet-webportal/tree/master/packages/webapp): portal frontend application - [read more](https://github.com/NebulousLabs/skynet-webportal/blob/master/packages/webapp/README.md)
- discord integration
- [funds-checker](funds-checker.py): script that checks wallet balance and sends status messages to discord periodically
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- [health-checker](health-checker.py): script that monitors health-check service for server health issues and reports them to discord periodically
- [log-checker](log-checker.py): script that scans siad logs for critical errors and reports them to discord periodically
- [blacklist-skylink](blacklist-skylink.sh): script that can be run locally from a machine that has access to all your skynet portal servers that blacklists provided skylink and prunes nginx cache to ensure it's not available any more (that is a bit much but that's the best we can do right now without paid nginx version) - if you want to use it, make sure to adjust the server addresses
### Step 1: setting up server user
1. SSH in a freshly installed Debian machine on a user with sudo access (can be root)
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1. `apt-get update && apt-get install sudo -y` to make sure `sudo` is available
1. `adduser user` to create user called `user` (creates `/home/user` directory)
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1. `usermod -aG sudo user` to add this new user to sudo group
1. Quit the ssh session with `exit` command
You a can now ssh into your machine as the user `user`.
### Step 2: setting up environment
1. On your local machine: `ssh-copy-id user@ip-addr` to copy over your ssh key to server
1. On your local machine: `ssh user@ip-addr` to log in to server as user `user`
1. You are now logged in as `user`
**Following step will be executed on remote host logged in as a `user`:**
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1. `sudo apt-get install git -y` to install git
1. `git clone https://github.com/NebulousLabs/skynet-webportal`
1. run setup scripts in the exact order and provide sudo password when asked (if one of them fails, you can retry just this one before proceeding further)
1. `/home/user/skynet-webportal/setup-scripts/setup-server.sh`
1. `/home/user/skynet-webportal/setup-scripts/setup-docker-services.sh`
1. `/home/user/skynet-webportal/setup-scripts/setup-health-check-scripts.sh` (optional)
### Step 3: configuring siad
At this point we have almost everything running, we just need to set up your wallet and allowance:
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1. Create new wallet (remember to save the seeds)
> `docker exec -it sia siac wallet init`
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1. Unlock wallet (use seed as password)
> `docker exec -it sia siac wallet unlock`
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1. Generate wallet addresse (save them for later to transfer the funds)
> `docker exec -it sia siac wallet address`
1. Set up allowance
> `docker exec -it sia siac renter setallowance`
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1. 10 KS (keep 25 KS in your wallet)
1. default period
1. default number of hosts
1. 8 week renewal time
1. 500 GB expected storage
1. 500 GB expected upload
1. 5 TB expected download
1. default redundancy
1. Instruct siad to start making 10 contracts per block with many hosts to potentially view the whole network's files
> `docker exec -it sia siac renter setallowance --payment-contract-initial-funding 10SC`
### Step 4: configuring docker services
1. edit `/home/user/skynet-webportal/.env` and configure following environment variables
- `DOMAIN_NAME` (optional) is your domain name if you have it
- `EMAIL_ADDRESS` (required) is your email address used for communication regarding SSL certification (required)
- `SIA_WALLET_PASSWORD` (required) is your wallet password (or seed if you did not set a password)
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- `HSD_API_KEY` (optional) this is a random security key for a handshake integration that gets generated automatically
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- `CLOUDFLARE_AUTH_TOKEN` (optional) if using cloudflare as dns loadbalancer (need to change it in Caddyfile too)
- `AWS_ACCESS_KEY_ID` (optional) if using route53 as a dns loadbalancer
- `AWS_SECRET_ACCESS_KEY` (optional) if using route53 as a dns loadbalancer
1. if you have a custom domain and you configured it in `DOMAIN_NAME`, edit `/home/user/skynet-webportal/docker/caddy/Caddyfile` and uncomment `import custom.domain`
1. only for siasky.net domain instances: edit `/home/user/skynet-webportal/docker/caddy/Caddyfile`, uncomment `import siasky.net`
1. `docker-compose up -d` to restart the services so they pick up new env variables
1. `docker exec caddy caddy reload --config /etc/caddy/Caddyfile` to reload Caddyfile configuration
## Useful Commands
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- Starting the whole stack
> `docker-compose up -d`
- Stopping the whole stack
> `docker-compose down`
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- Accessing siac
> `docker exec -it sia siac`
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- Stopping sia service
- safe method - stops health-check service and wait for dns propagation
> `setup-scripts/sia-stop.sh`
- unsafe (force stop)
> `docker-compose down sia`
- Restarting sia service
- safe method - stops health-check service and wait for dns propagation
> `setup-scripts/sia-restart.sh`
- unsafe (force restart)
> `docker-compose down sia`
> `docker compose up -d sia`
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- Restarting caddy gracefully after making changes to Caddyfile (no downtime)
> `docker exec caddy caddy reload --config /etc/caddy/Caddyfile`
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- Restarting nginx gracefully after making changes to nginx configs (no downtime)
> `docker exec nginx openresty -s reload`
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- Checking siad service logs (since last hour)
> `docker logs --since 1h $(docker ps -q --filter "name=^sia$")`
- Checking caddy logs (for example in case ssl certificate fails)
> `docker logs caddy -f`
- Checking nginx logs (nginx handles all communication to siad instances)
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> `tail -n 50 docker/data/nginx/logs/access.log` to follow last 50 lines of access log
> `tail -n 50 docker/data/nginx/logs/error.log` to follow last 50 lines of error log