github ci/cd stuff

Author: monoidic

.github/workflows/build.yml

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+name: Build
+
+on:
+  workflow_dispatch:
+
+jobs:
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    outputs:
+      upload_url: ${{steps.release.outputs.upload_url}}
+    steps:
+      - uses: actions/create-release@v1
+        id: release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: tag-${{ github.sha }}
+          release_name: ${{ github.sha }}
+
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    needs: release
+    strategy:
+      matrix:
+        arch: [ x86_64, aarch64 ]
+    steps:
+    - uses: actions/checkout@v3
+    - run: sudo sh -c 'apt update && apt install qemu-user-static'
+
+    # build in alpine chroot to allow for the binary to be static
+    - run: wget -O rootfs.tgz https://dl-cdn.alpinelinux.org/alpine/latest-stable/releases/${{ matrix.arch }}/alpine-minirootfs-3.18.3-${{ matrix.arch }}.tar.gz
+    - run: mkdir rootfs
+    - run: sudo tar -C rootfs -xf rootfs.tgz
+    - run: sudo mkdir rootfs/src
+    - run: sudo mount -o bind . rootfs/src
+    - run: sudo cp $(which qemu-${{ matrix.arch }}-static) rootfs/
+    - run: printf 'nameserver 1.1.1.1\n' | sudo tee rootfs/etc/resolv.conf
+    - run: sudo chroot rootfs /qemu-${{ matrix.arch }}-static /bin/sh /src/static.sh
+
+    - run: cp rootfs/src/dns-tools .
+    - run: zip release.zip dns-tools
+
+    - uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ needs.release.outputs.upload_url }}
+        asset_path: release.zip
+        asset_name: release_${{ matrix.arch }}.zip
+        asset_content_type: application/zip

static.sh

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+#!/bin/sh
+
+apk add alpine-sdk go sqlite-dev
+go build -C src -tags netgo,sqlite_omit_load_extension -trimpath -ldflags="-s -w -extldflags=-static" -buildmode=pie