Added mycelo Dockerfile and GH workflow for testing it (#2156)

* Added mycelo Dockerfile and GH workflow for testing it

* Remove branch trigger

* Using golang 1.18

* Rename workflow

* Using a subfolder for genesis

* Cancel image build for concurrent commits in same PR

* Remove currency config

* Go version 1.19. Setting commits in the image

* Fix typo

* Update folder reference

Author: jcortejoso

Diff for: .github/workflows/mycelo-docker-image.yaml

@@ -0,0 +1,58 @@
+name: Build mycelo image
+
+on:
+  push:
+    branches:
+      - master
+
+  pull_request:
+    branches:
+      - master
+
+concurrency:
+  group: mycelo-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  build-mycelo-image:
+    name: Build mycelo image
+    runs-on: [self-hosted, blockchain, 8-cpu]
+    steps:
+      - name: Checkout celo-blockchain repo
+        uses: actions/checkout@v3
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Build mycelo image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: ./Dockerfile.mycelo
+          push: false
+          tags: mycelo:latest
+          load: true
+          build-args: GETH_COMMIT={{ github.sha }}
+      - name: Check docker images
+        run: docker images
+      - name: Generate genesis.json using mycelo image
+        run: |
+          mkdir genesis
+          docker run \
+            --rm \
+            --name mycelo \
+            -v $(pwd)/genesis:/genesis \
+            -w /genesis \
+            mycelo:latest \
+              "/usr/local/bin/mycelo genesis \
+                --buildpath /contracts \
+                --template loadtest \
+                --validators 1 \
+                --dev.accounts 1 \
+                --blockperiod 5 \
+                --epoch 600 \
+                --blockgaslimit 30000000 \
+                --mnemonic \"flock crumble custom public elder fix picnic title naive today update load delay jeans curtain engage radar flag trap maple help sustain chapter still\""
+      - name: Print genesis.json
+        run: |
+          head -n 30 $(pwd)/genesis/genesis.json

Diff for: Dockerfile.mycelo

@@ -0,0 +1,40 @@
+# Build Geth in a stock Go builder container
+FROM golang:1.19-alpine as builder
+
+RUN apk add --no-cache make gcc musl-dev linux-headers git
+
+ADD . /go-ethereum
+RUN cd /go-ethereum && make all-musl
+
+FROM node:18-bullseye-slim as monorepo
+RUN apt-get update && apt install -y git
+ADD ./monorepo_commit /monorepo_commit
+RUN git clone https://github.com/celo-org/celo-monorepo /celo-monorepo && \
+    cd /celo-monorepo && \
+    git checkout $(cat /monorepo_commit)
+RUN apt-get update && \
+    apt-get install -y lsb-release && \
+    apt-get install -y curl build-essential python2 pkg-config libsecret-1-dev libudev-dev libusb-dev libusb-1.0-0 bash
+RUN cd /celo-monorepo && \
+    yarn install --network-timeout 100000 --frozen-lockfile && \
+    yarn cache clean && \
+    yarn build
+
+# Pull all binaries into a second stage deploy alpine container
+FROM alpine:latest
+ARG COMMIT_SHA
+
+RUN apk add --no-cache ca-certificates
+COPY --from=builder /go-ethereum/build/bin/* /usr/local/bin/
+COPY --from=builder /go-ethereum/monorepo_commit /monorepo_commit
+COPY --from=monorepo /celo-monorepo/packages/protocol/build/contracts /contracts/contracts/
+COPY --from=monorepo /celo-monorepo/packages/protocol/build/contracts-mento /contracts/contracts-mento/
+RUN echo $COMMIT_SHA > /version.txt
+
+# Using "/bin/sh -c" as the entrypoint to allow executing multiple commands directly from docker run
+ENTRYPOINT ["/bin/sh", "-c"]
+
+# Add some metadata labels to help programatic image consumption
+ARG GETH_COMMIT=""
+
+LABEL GETH_COMMIT="$COMMIT"