ci: Replace embedded quay.io image with appimage

This commit creates a new GHA job that builds and uploads the bpftrace
appimage to the commit's build artifacts. This is intended to replace
the previous quay.io images.

Also update scripts/create-assets.md and release_process.md to use the
appimage. Note we stop compressing the bpftrace binary alone -- the
appimage is already zstd compressed.

.github/workflows/binary.yml

@@ -0,0 +1,29 @@
+# This workflow builds and uploads the bpftrace appimage as a build artifact.
+#
+# This is useful for users who want to download the latest and greatest bpftrace
+# binary without going through a local build.
+
+name: Binary
+
+on:
+ push:
+ branches:
+ - master
+
+jobs:
+ build-and-upload:
+ runs-on: ubuntu-latest
+
+ steps:
+ - uses: actions/checkout@v4
+ - uses: DeterminateSystems/nix-installer-action@v4
+ - uses: DeterminateSystems/magic-nix-cache-action@v2
+
+ - name: Build appimage
+ run: nix build .#appimage
+
+ - name: Upload appimage
+ uses: actions/upload-artifact@v3
+ with:
+ name: bpftrace
+ path: ./result

docs/release_process.md

@@ -42,11 +42,5 @@ You must do these things to formally release a version:
  as "commits"), then "Draft a new release". The tag version and release title
  should be the same and in `vX.Y.Z` format. The tag description should
  be the same as what you added to `CHANGELOG.md`.
-1. Once the release tag pipeline has finished, extract the bpftrace binary from
- the release build on and attach it to the release.
- - `docker run -v
-$(pwd):/output quay.io/iovisor/bpftrace:vXX.YY.ZZ /bin/bash -c "cp
-/usr/bin/bpftrace /output"`
 1. Run `scripts/create-assets.sh` from bpftrace root dir and attach the
  generated archives to the release.
-

scripts/create-assets.sh

@@ -12,7 +12,6 @@ function info() {
 
 [[ -d tools ]] || err "'tools' directory not found, run script from bpftrace root dir"
 [[ -d man ]] || err "'man' directory not found, run script from bpftrace root dir"
-[[ -f bpftrace ]] || err "bpftrace binary not found, download the build artifact"
 command -v zstd >/dev/null 2>&1 || err "zstd command not found, required for release"
 command -v asciidoctor >/dev/null 2>&1 || err "asciidoctor not found, required for manpage"
 
@@ -44,16 +43,15 @@ gzip "$TMP/share/man/man8/"*
 asciidoctor man/adoc/bpftrace.adoc -b manpage -o - | gzip - > "$TMP/share/man/man8/bpftrace.8.gz"
 tar --xz -cf "$OUT/man.tar.xz" -C "$TMP/share" man
 
+info "Building bpftrace appimage"
+nix build .#appimage
+
 info "Creating bundle"
-cp bpftrace "$TMP/bin/bpftrace"
+cp ./result "$OUT/bpftrace"
+cp ./result "$TMP/bin/bpftrace"
 tar -cf "$OUT/binary_tools_man-bundle.tar" -C "$TMP" bin share
 zstd $ZSTDFLAGS -q -k "$OUT/binary_tools_man-bundle.tar"
 xz "$OUT/binary_tools_man-bundle.tar"
 
-info "Compressing binary"
-cp bpftrace "$OUT/"
-xz -k "$OUT/bpftrace"
-zstd $ZSTDFLAGS -q -k "$OUT/bpftrace"
-
 echo "All assets created in $OUT"
 [[ -d "$TMP" ]] && rm -rf "$TMP"