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fix(deploy): build Go binaries on the runner, ship them, SKIP_BUILD on box (#27)

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The deploy SSHed into the ~458MB droplet and ran `go build` there. The Go
linker's peak memory OOM-killed the build — and with it the sshd serving the
deploy session — surfacing as "Connection closed by remote host" (exit 255).
It was flaky because it tracked momentary memory pressure from the co-resident
ergo/forgejo/tor/podman/agentbbs processes (run #25 passed, #26 failed on
near-identical code).

Build both binaries on the 16GB GitHub runner instead (pure-Go, modernc
sqlite, so CGO_ENABLED=0 static cross-build), scp them to the droplet, and run
setup.sh with SKIP_BUILD=1 so the box never compiles. Arch is detected from
the droplet so amd64/arm64 both work. setup.sh now also skips the Go toolchain
download when SKIP_BUILD=1.

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Anthony Ettinger 2026-06-15 07:09:57 -07:00 • committed by GitHub
parent 68899180a7
commit d763d732a3
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2 changed files with 72 additions and 7 deletions
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setup.sh
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@ -119,8 +119,11 @@ if ! command -v yt-dlp >/dev/null; then
fi
# ---- 2. Go toolchain (system go is too old; pin GO_VERSION) -----------------
# Skipped entirely when SKIP_BUILD=1: the CI deploy builds the binaries on the
# runner and ships them, so the droplet needs no Go toolchain at all.
GO_ROOT="/usr/local/go"
if [ "$("$GO_ROOT/bin/go" version 2>/dev/null | awk '{print $3}')" != "go${GO_VERSION}" ]; then
if [ "$SKIP_BUILD" != "1" ] && \
[ "$("$GO_ROOT/bin/go" version 2>/dev/null | awk '{print $3}')" != "go${GO_VERSION}" ]; then
log "installing Go ${GO_VERSION}"
tmp="$(mktemp -d)"
curl -fsSL "https://go.dev/dl/go${GO_VERSION}.linux-${GOARCH}.tar.gz" -o "$tmp/go.tgz" \