Begin docker builds via GH actions workflow.

Author: davidski

.github/workflows/build-image.yaml

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+name: Docker Image
+
+on:
+  push:
+    branches:
+      - master
+      - main
+      
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v1
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v1
+    - name: Login to GitHub Container Registry
+      uses: docker/login-action@v1
+      with:
+        registry: ghcr.io
+        username: ${{ github.repository_owner }}
+        password: ${{ secrets.CR_PAT }}
+    - name: Build and push
+      id: docker_build
+      uses: docker/build-push-action@v2
+      with:
+        push: true
+        tags: davidski/evaluator:latest
+        build-args: |
+            arg1=value1
+            arg2=value2

.github/workflows/dependabot.yaml

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+version: 2
+updates:
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"

Dockerfile

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+FROM rocker/tidyverse:4.0.3 as builder
+
+ARG EVALUATOR_VERSION
+ENV BUILD_DATE=2020-11-27
+ARG ADD=shiny
+
+LABEL org.opencontainers.licenses="MIT" \
+      org.opencontainers.source="https://github.com/davidski/evaluator" \
+      maintainer="David F. Severski <[email protected]>"
+
+RUN /rocker_scripts/install_shiny_server.sh
+
+COPY . /src/
+WORKDIR /src
+
+RUN apt-get update \
+    && apt-get install -y zlib1g-dev libproj-dev libpng-dev libxml2-dev \
+    && install2.r --deps=TRUE remotes \
+    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+RUN apt-get clean \
+    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+COPY /scripts/create_templates.R /usr/local/bin/create_templates
+COPY /scripts/run_analysis.R /usr/local/bin/run_analysis
+
+VOLUME /data
+
+EXPOSE 8787
+EXPOSE 3838

scripts/create_templates.R

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+#!/usr/local/bin/r
+
+## initialize templates
+
+message("Creating templates...")
+library(evaluator)
+create_templates("/data")
+message("Templates created.")
+

scripts/run_analysis.R

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+#!/usr/local/bin/r
+
+## run analysis
+
+message("Running analysis...")
+base_dir <- "/data"
+source("/data/run_analysis.R", echo=FALSE)