feat: containerize faucet

.github/workflows/faucet.yml

@@ -0,0 +1,42 @@
+name: Faucet - CI
+
+on:
+  push:
+    branches:
+      - "master"
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Setup docker builder
+        uses: docker/setup-buildx-action@v1
+        with: { install: true }
+
+      - name: Prepare production release tags
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: |
+            assetmantle/faucet
+          tags: |
+            type=raw,value=latest-{{sha}}-{{date 'X'}}
+            type=raw,value=latest
+
+      - name: Login to docker registry
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Build production container image
+        uses: docker/build-push-action@v2
+        with:
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          cache-from: type=local,src=/tmp/buildx-cache
+          cache-to: type=gha,mode=max

README.md

@@ -1,2 +1,15 @@
 # assetDApp
+
 A decentralised web app for assetMantle.
+
+## Run faucet in container
+
+> Make sure [docker]((https://docs.docker.com/desktop/mac/install/)) and [docker-compose](https://docs.docker.com/compose/install/) is installed in your system
+>
+> Building container image with docker in macos will be slower as there is no native docker support
+
+Edit `services.faucet.environment` in `docker-compose.yaml` as per your need
+
+```shell
+docker-compose up
+```

docker-compose.yaml

@@ -0,0 +1,17 @@
+---
+version: "3"
+services:
+  faucet:
+    image: assetmantle/faucet:edge
+    build:
+      context: ./faucet/
+    environment:
+      - CHAINID=test
+      - LCDURL=http://127.0.0.1:1317
+      - HOST=0.0.0.0
+      - PORT=3001
+      - MNEMONICS=wage thunder live sense resemble foil apple course spin horse glass mansion midnight laundry acoustic rhythm loan scale talent push green direct brick please
+      - MODE=block
+    ports:
+      - 3001:3001
+    restart: unless-stopped

faucet/Dockerfile

@@ -0,0 +1,11 @@
+FROM node:16 AS build-env
+COPY . /app
+WORKDIR /app
+RUN --mount=type=cache,target=/root/.cache \
+  --mount=type=cache,target=/root/.npm \
+  npm i
+
+FROM gcr.io/distroless/nodejs:16
+COPY --from=build-env /app /app
+WORKDIR /app
+CMD ["main.js"]

faucet/main.js

@@ -1,4 +1,3 @@
-const config = require('./config.json');
 const bip39 = require("bip39");
 const bip32 = require("bip32");
 const {bech32} = require("bech32");
@@ -88,15 +87,15 @@ async function broadcastTx(wallet, tx, mode) {
         }
         const signMeta = {
             account_number: accountNum,
-            chain_id: config.chainID,
+            chain_id: process.env.CHAINID,
             sequence: seq
         };
         let stdTx = tmSig.signTx(tx, signMeta, wallet);
         let broadcastReq = {
             tx: stdTx,
             mode: mode
         };
-        let broadcastResponse = await fetch(config.lcdURL + "/txs", {
+        let broadcastResponse = await fetch(process.env.LCDURL + "/txs", {
             method: 'POST',
             headers: {
                 'Content-Type': 'application/json'
@@ -120,7 +119,7 @@ async function getAccount(address) {
     result.success = false;
     result.account = {};
     try {
-        let response = await fetch(config.lcdURL + "/auth/accounts/" + address);
+        let response = await fetch(process.env.LCDURL + "/auth/accounts/" + address);
         let json = await response.json();
         result.success = true;
         result.account = json;
@@ -166,7 +165,7 @@ app.get("/faucet/:address", async function (req, res) {
         const toAddress = getMantleAddress(req.params.address);
         let result = {};
         if (toAddress !== "") {
-            let txResult = await sendCoin(config.mnemonics, toAddress, faucetAmount, 3000, gas, config.mode);
+            let txResult = await sendCoin(process.env.MNEMONICS, toAddress, faucetAmount, 3000, gas, process.env.MODE);
             result.success = txResult.success;
             result.message = txResult.message;
             console.log(result.message);
@@ -185,7 +184,7 @@ app.get("/faucet/:address", async function (req, res) {
     }
 });
 
-let server = app.listen(config.port, config.host, function () {
+let server = app.listen(process.env.PORT, process.env.HOST, function () {
     let host = server.address().address;
     let port = server.address().port;
     console.log("App listening at http://%s:%s", host, port);