moby--moby/hack/make/.ensure-userns-test

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#!/bin/bash
set -e
# Build a C binary for cloning a userns for seccomp tests
# and compile it for target daemon
dir="$DEST/userns-test"
mkdir -p "$dir"
(
if [ "$(go env GOOS)" = "linux" ]; then
cd "$dir"
gcc -g -Wall -static ../../../../contrib/userns-test/main.c -o ./userns-test
cp ../../../../contrib/userns-test/Dockerfile .
docker build -qt userns-test . > /dev/null
fi
)
rm -rf "$dir"