Cloudflared compile for ARMv6 (RPi 1, Zero, Zero W)

compile-cloudflared-old-pi.md

Cross compile cloudflared for tunnel usage on old ARMv6 RPi.

Checked on RPi 1 Model B

Find on target Pi

which cloudflared
ls -l $(which cloudflared) #(keep result)

Clone official repo

git clone https://github.com/cloudflare/cloudflared.git
cd cloudflared

Cross compile for armv6 (will output a statically linked binary)

COMMIT=$(git rev-parse --short HEAD)
VERSION=$(git describe --tags --abbrev=0)
CGO_ENABLED=0 GOOS=linux GOARCH=arm GOARM=6 go build \
  -ldflags "-X main.Version=$VERSION -X main.BuildTime=$(date -u +%Y-%m-%dT%H:%M:%SZ) -X main.GitCommit=$COMMIT" \
  -o cloudflared ./cmd/cloudflared

Stop all running tunnels

ps aux | grep cloudflared
# Selective kill
kill -9 <PID>
# Nuclear option
killall cloudflared

Save previous (on target)

mv /usr/bin/cloudflared /usr/bin/cloudflared.bak

Transfer to target (from builder)

scp cloudflared user@server=/usr/bin/cloudflared # use result path

Check

maison:/var/log# cloudflared --version
cloudflared version 2026.3.0 (built 2026-04-01T01:21:51Z)

Restart tunnels.

(Cloudflare will notify when you are behind latest in logs.)