93960e7c4e
- Expand instructions around technical specifics of project setup, including special gotchas in Ubuntu-based environments - Add statement of setup flow to give thousand-foot view to users setting up Vulcanize for the first time
138 lines
6.6 KiB
Markdown
138 lines
6.6 KiB
Markdown
# Vulcanize DB
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[](https://gitter.im/vulcanizeio/VulcanizeDB?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
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[](https://travis-ci.org/vulcanize/vulcanizedb)
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## About
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Vulcanize DB is a set of tools that make it easier for developers to write application-specific indexes and caches for dapps built on Ethereum.
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## Dependencies
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- Go 1.9+
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- Postgres 10
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- Ethereum Node
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- [Go Ethereum](https://ethereum.github.io/go-ethereum/downloads/) (1.8+)
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- [Parity 1.8.11+](https://github.com/paritytech/parity/releases)
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## Project Setup
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Using Vulcanize for the first time requires several steps be done in order to allow use of the software. The following instructions will offer a guide through the steps of the process:
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1. Fetching the project
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2. Installing dependencies
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3. Configuring shell environment
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4. Database setup
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5. Configuring synced Ethereum node integration
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6. Data syncing
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## Installation
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In order to fetch the project codebase for local use or modification, install it to your `GOPATH` via:
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`go get github.com/vulcanize/vulcanizedb`
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Once fetched, dependencies can be installed via `go get` or (the preferred method) at specific versions via `golang/dep`, the prototype golang pakcage manager. Installation instructions are [here](https://golang.github.io/dep/docs/installation.html).
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In order to install packages with `dep`, ensure you are in the project directory now within your `GOPATH` (default location is `~/go/src/github.com/vulcanize/vulcanizedb/`) and run:
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`dep ensure`
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After `dep` finishes, dependencies should be installed within your `GOPATH` at the versions specified in `Gopkg.toml`.
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Lastly, ensure that `GOPATH` is defined in your shell. If necessary, `GOPATH` can be set in `~/.bashrc` or `~/.bash_profile`, depending upon your system. It can be additionally helpful to add `$GOPATH/bin` to your shell's `$PATH`.
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## Setting up the Database
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1. Install Postgres
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1. Create a superuser for yourself and make sure `psql --list` works without prompting for a password.
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1. Execute `createdb vulcanize_public`
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1. Execute `cd $GOPATH/src/github.com/vulcanize/vulcanizedb`
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1. Run the migrations: `make migrate HOST_NAME=localhost NAME=vulcanize_public PORT=<postgres port, default 5432>`
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* See below for configuring additional environments
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In some cases (such as recent Ubuntu systems), it may be necessary to overcome failures of password authentication from `localhost`. To allow access on Ubuntu, set localhost connections via hostname, ipv4, and ipv6 from `peer`/`md5` to `trust` in: `/etc/postgresql/<version>/pg_hba.conf`
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(It should be noted that trusted auth should only be enabled on systems without sensitive data in them: development and local test databases.)
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## Configuring Ethereum Node Integration
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- To use a local Ethereum node, copy `environments/public.toml.example` to
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`environments/public.toml` and update the `ipcPath` and `levelDbPath`.
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- `ipcPath` should match the local node's IPC filepath:
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- For Geth:
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- The IPC file is called `geth.ipc`.
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- The geth IPC file path is printed to the console when you start geth.
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- The default location is:
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- Mac: `<full home path>/Library/Ethereum`
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- Linux: `<full home path>/ethereum/geth.ipc`
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- For Parity:
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- The IPC file is called `jsonrpc.ipc`.
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- The default location is:
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- Mac: `<full home path>/Library/Application\ Support/io.parity.ethereum/`
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- Linux: `<full home path>/local/share/io.parity.ethereum/`
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- `levelDbPath` should match Geth's chaindata directory path.
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- The geth LevelDB chaindata path is printed to the console when you start geth.
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- The default location is:
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- Mac: `<full home path>/Library/Ethereum/geth/chaindata`
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- Linux: `<full home path>/ethereum/geth/chaindata`
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- `levelDbPath` is irrelevant (and `coldImport` is currently unavailable) if only running parity.
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- See `environments/infura.toml` to configure commands to run against infura, if a local node is unavailable. (Support is currently experimental, at this time.)
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## Start syncing with postgres
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Syncs VulcanizeDB with the configured Ethereum node.
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1. Start the node
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- If node state is not yet fully synced, Vulcanize will not be able to operate on the fetched data. You will need to wait for the initial sync to finish.
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1. Start the vulcanize_db sync
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- Execute `./vulcanizedb sync --config <path to config.toml>`
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- Or to sync from a specific block: `./vulcanizedb sync --config <config.toml> --starting-block-number <block-number>`
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## Alternatively, sync from Geth's underlying LevelDB
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Sync VulcanizeDB from the LevelDB underlying a Geth node.
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1. Assure node is not running, and that it has synced to the desired block height.
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1. Start vulcanize_db
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- `./vulcanizedb coldImport --config <config.toml>`
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1. Optional flags:
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- `--starting-block-number <block number>`/`-s <block number>`: block number to start syncing from
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- `--ending-block-number <block number>`/`-e <block number>`: block number to sync to
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- `--all`/`-a`: sync all missing blocks
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## Running the Tests
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In order to run the full test suite, a test database must be prepared. By default, the rests use a database named `vulcanize_private`. Create the database in Postgres, and run migrations on the new database in preparation for executing tests:
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`make migrate HOST_NAME=localhost NAME=vulcanize_private PORT=<postgres port, default 5432>`
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Ginkgo is declared as a `dep` package test execution. Linting and tests can be run together via a provided `make` task:
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`make test`
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Tests can be run directly via Ginkgo in the project's root directory:
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`ginkgo -r`
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## Start full environment in docker by single command
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### Geth Rinkeby
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make command | description
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------------------- | ----------------
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rinkeby_env_up | start geth, postgres and rolling migrations, after migrations done starting vulcanizedb container
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rinkeby_env_deploy | build and run vulcanizedb container in rinkeby environment
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rinkeby_env_migrate | build and run rinkeby env migrations
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rinkeby_env_down | stop and remove all rinkeby env containers
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Success run of the VulcanizeDB container require full geth state sync,
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attach to geth console and check sync state:
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```bash
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$ docker exec -it rinkeby_vulcanizedb_geth geth --rinkeby attach
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...
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> eth.syncing
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false
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```
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If you have full rinkeby chaindata you can move it to `rinkeby_vulcanizedb_geth_data` docker volume to skip long wait of sync.
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