feat: Add git flow to make docker image (#157)

.github/workflows/docker-publish.yml

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+name: Docker
+
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+on:
+  push:
+    branches: [ master ]
+    # Publish semver tags as releases.
+    tags: [ 'v*.*.*' ]
+
+env:
+  # Use docker.io for Docker Hub if empty
+  REGISTRY: ghcr.io
+  # github.repository as <account>/<repo>
+  IMAGE_NAME: ${{ github.repository }}
+
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      # Login against a Docker registry except on PR
+      # https://github.com/docker/login-action
+      - name: Log into registry ${{ env.REGISTRY }}
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1.10.0
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # Extract metadata (tags, labels) for Docker
+      # https://github.com/docker/metadata-action
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v3.3.0
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      # Build and push Docker image with Buildx (don't push on PR)
+      # https://github.com/docker/build-push-action
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v2.6.1
+        with:
+          context: .
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

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+FROM golang:1.16.5-buster AS build-env
+
+# Install minimum necessary dependencies,
+ENV PACKAGES make git gcc
+RUN apt-get update -y
+RUN apt-get install -y $PACKAGES
+
+# Create directory
+RUN mkdir -p /src/panacea-core /src/wasmvm
+
+# Add 'panacea-core' source files
+COPY . /src/panacea-core
+
+# Set working directory for the 'panacea-core' build
+WORKDIR /src/panacea-core
+
+# Install panacea-core
+RUN make clean && make build
+
+# Get 'libwasmvm.so' from wasmvm
+RUN git clone -b v0.14.0 https://github.com/CosmWasm/wasmvm.git /src/wasmvm
+
+# Final image
+FROM debian:buster-slim
+
+# Copy over binaries from the build-env
+COPY --from=build-env /src/panacea-core/build/panacead /usr/bin/panacead
+# Copy 'libwasmvm.so' liberary from the build-env
+COPY --from=build-env /src/wasmvm/api/libwasmvm.so /usr/lib/libwasmvm.so
+
+RUN chmod +x /usr/bin/panacead
+
+EXPOSE 26656 26657 1317 9090