RUN wget https://github.com/bazelbuild/buildtools/releases/download/v7.3.1/buildifier-linux-amd64 -O /usr/local/bin/buildifier && chmod +x /usr/local/bin/buildifier
RUN wget https://github.com/bazelbuild/buildtools/releases/download/v7.3.1/buildozer-linux-amd64 -O /usr/local/bin/buildozer && chmod +x /usr/local/bin/buildozer

    curl -s -q https://dl.min.io/client/mc/release/linux-${TARGETARCH}/mc.sha256sum -o /go/bin/mc.sha256sum && \
    chmod +x /go/bin/mc

RUN if [ "$TARGETARCH" = "amd64" ]; then \
       curl -L -s -q https://github.com/moparisthebest/static-curl/releases/latest/download/curl-${TARGETARCH} -o /go/bin/curl; \
       chmod +x /go/bin/curl; \
    fi

RUN wget https://github.com/bazelbuild/buildtools/releases/download/v7.3.1/buildifier-linux-arm64 -O /usr/local/bin/buildifier && chmod +x /usr/local/bin/buildifier
RUN wget https://github.com/bazelbuild/buildtools/releases/download/v7.3.1/buildozer-linux-arm64 -O /usr/local/bin/buildozer && chmod +x /usr/local/bin/buildozer

    curl -s -q https://dl.min.io/server/minio/release/linux-${TARGETARCH}/archive/minio.${RELEASE}.sha256sum -o /go/bin/minio.sha256sum && \
    chmod +x /go/bin/minio

# Download mc binary and signature files
RUN curl -s -q https://dl.min.io/client/mc/release/linux-${TARGETARCH}/mc -o /go/bin/mc && \

    curl -s -q https://dl.min.io/client/mc/release/linux-${TARGETARCH}/mc.sha256sum -o /go/bin/mc.sha256sum && \
    chmod +x /go/bin/mc

RUN if [ "$TARGETARCH" = "amd64" ]; then \
       curl -L -s -q https://github.com/moparisthebest/static-curl/releases/latest/download/curl-${TARGETARCH} -o /go/bin/curl; \
       chmod +x /go/bin/curl; \
    fi

	}

	if err = os.Chmod(slashpath.Join(permDeniedDir, "mybucket"), 0o400); err != nil {
		t.Fatalf("Unable to change permission to temporary directory %v. %v", slashpath.Join(permDeniedDir, "mybucket"), err)
	}
	t.Cleanup(func() {
		os.Chmod(slashpath.Join(permDeniedDir, "mybucket"), 0o775)
	})

	if err = os.Chmod(permDeniedDir, 0o400); err != nil {

	## docker-compose on all runners
	COMPOSE_VERSION=v2.35.1
	mkdir -p /tmp/gopath/bin/
	wget -O /tmp/gopath/bin/docker-compose https://github.com/docker/compose/releases/download/${COMPOSE_VERSION}/docker-compose-linux-x86_64
	chmod +x /tmp/gopath/bin/docker-compose

	cleanup

	TAG=minio/minio:dev make docker

	MINIO_VERSION=RELEASE.2019-12-19T22-52-26Z docker-compose \
		-f "buildscripts/upgrade-tests/compose.yml" \
		up -d --build

- Chroot installed on your machine.

## 2. Install MinIO in Chroot

```sh
mkdir -p /mnt/export/${USER}/bin
wget https://dl.min.io/server/minio/release/linux-amd64/minio -O /mnt/export/${USER}/bin/minio
chmod +x /mnt/export/${USER}/bin/minio
```

Bind your `proc` mount to the target chroot directory

```
sudo mount --bind /proc /mnt/export/${USER}/proc
```

## 3. Run Standalone MinIO in Chroot

### GNU/Linux

- For installations using Systemd MinIO service, upgrade via RPM/DEB packages **parallelly** on all servers or replace the binary lets say `/opt/bin/minio` on all nodes, apply executable permissions `chmod +x /opt/bin/minio` and process to perform `mc admin service restart alias/`.

pkg net/http, method (*CrossOriginProtection) Handler(Handler) Handler #73626
pkg net/http, method (*CrossOriginProtection) SetDenyHandler(Handler) #73626
pkg net/http, type CrossOriginProtection struct #73626
pkg os, method (*Root) Chmod(string, fs.FileMode) error #67002
pkg os, method (*Root) Chown(string, int, int) error #67002
pkg os, method (*Root) Chtimes(string, time.Time, time.Time) error #67002
pkg os, method (*Root) Lchown(string, int, int) error #67002