v1.3.9: Migrate to new container registry

.github/workflows/build.yml

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+name: Build
+on:
+  push:
+    tags: '*'
+
+jobs:
+  prepare-data:
+    name: Prepare Data
+    runs-on: ubuntu-latest
+    outputs:
+      tag: ${{ steps.prepare.outputs.SOURCE_TAG }}
+    steps:
+      - id: prepare
+        name: Prepare environment variables
+        run: |
+          echo ::set-output name=SOURCE_NAME::${GITHUB_REF#refs/*/}
+          echo ::set-output name=SOURCE_BRANCH::${GITHUB_REF#refs/heads/}
+          echo ::set-output name=SOURCE_TAG::${GITHUB_REF#refs/tags/}
+
+  build:
+    name: GitHub Package Registry
+    runs-on: ubuntu-latest
+    needs: [prepare-data]
+    steps:
+    - uses: actions/checkout@v2
+    - name: Login to GitHub Package Registry
+      run: echo ${{ secrets.PAT }} | docker login ghcr.io -u luketainton --password-stdin
+    - name: Build image for GitHub Package Registry
+      run: docker build . --file Dockerfile --tag ghcr.io/luketainton/ipilot:${{ needs.prepare-data.outputs.tag }} --tag ghcr.io/luketainton/ipilot:latest
+    - name: Push image to GitHub Package Registry
+      run: |
+        docker push ghcr.io/luketainton/ipilot:latest
+        docker push ghcr.io/luketainton/ipilot:${{ needs.prepare-data.outputs.tag }}

Dockerfile

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+FROM golang:1.16-alpine as build
+WORKDIR /go/src/app
+COPY . /go/src/app
+RUN CGO_ENABLED=0 go build -o /go/bin/app
+
+FROM gcr.io/distroless/base-debian10
+LABEL maintainer="Luke Tainton <luke@tainton.uk>"
+COPY --from=build /go/bin/app /
+CMD ["/app"]

go.mod

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+module github.com/luketainton/iPilot
+
+go 1.16