Fix antrea-ubi image build

Starting with Go 1.21, the runtime system needs to have a version of
glibc "compatible" with the version available at build time. The ubi8
image comes with a very old version of glibc compared to the golang
builder, and the Antrea binaries no longer run.

To address this, we use the ubi8 image to build Antrea, which means we
need to install Go manually.

Fixes antrea-io#5722

Signed-off-by: Antonin Bas <[email protected]>

Author: antoninbas

build/images/Dockerfile.build.ubi

@@ -12,9 +12,30 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-ARG GO_VERSION
 ARG BUILD_TAG
-FROM golang:${GO_VERSION} as antrea-build
+FROM registry.access.redhat.com/ubi8 as antrea-build
+
+ADD https://go.dev/dl/?mode=json&include=all go-versions.json
+
+RUN yum install ca-certificates gcc jq make wget -y
+
+ARG GO_VERSION
+
+# GO_VERSION is a Go minor version, we use the downloaded go-versions.json file
+# to identify and install the latest patch release for this minor version.
+RUN set -eux; \
+    arch="$(uname -m)"; \
+    case "${arch##*-}" in \
+         x86_64) goArch='amd64' ;; \
+         arm) goArch='armv6l' ;; \
+         aarch64) goArch='arm64' ;; \
+         *) goArch=''; echo >&2; echo >&2 "unsupported architecture '$arch'"; echo >&2 ; exit 1 ;; \
+    esac; \
+    GO_ARCHIVE=$(jq --arg version_prefix "go${GO_VERSION}." --arg arch "$goArch" -r '. | map(select(. | .version | startswith($version_prefix))) | first | .files[] | select(.os == "linux" and .arch == $arch and .kind == "archive").filename' go-versions.json); \
+    wget -q -O - https://go.dev/dl/${GO_ARCHIVE} | tar xz -C /usr/local/
+
+# Using ENV makes the change persistent, but this is just a builder image.
+ENV PATH /usr/local/go/bin:$PATH
 
 WORKDIR /antrea