[no-relnote] Add instructions to produce a once-off build

scripts/hotfix-patch.md

@@ -0,0 +1,103 @@
+# Patching a release
+
+```
+source ./scripts/utils.sh
+
+export REFERENCE=main
+```
+
+```
+SHA=$(git rev-parse --short=8 ${REFERENCE})
+IMAGE_NAME="ghcr.io/nvidia/container-toolkit"
+IMAGE_TAG=${SHA}-packaging
+VERSION=$(get_version_from_image ${IMAGE_NAME}:${IMAGE_TAG} ${SHA})
+PACKAGE_CACHE=release-${VERSION}-patch-$(git rev-parse --short=8 HEAD)
+```
+
+```
+./hack/pull-packages.sh \
+    ${IMAGE_NAME}:${IMAGE_TAG} \
+    ${PACKAGE_CACHE}
+```
+
+
+
+
+1. Build the required components:
+
+```
+export DIST_DIR=$(pwd)/${PACKAGE_CACHE}/packages
+./scripts/build-packages.sh ${TARGETS}
+```
+
+Where `${TARGETS}` is any combination of:
+- `ubuntu18.04-arm64`
+- `ubuntu18.04-amd64`
+- `ubuntu18.04-ppc64le`
+- `centos7-aarch64`
+- `centos7-x86_64`
+- `centos8-ppc64le`
+
+The `ppc64le` targets are generally not covered by QA, and something like:
+```
+./scripts/build-packages.sh ubuntu18.04-amd64 ubuntu18.04-arm64 centos7-x86_64 centos7-aarch64
+```
+
+Should be sufficient.
+
+1. Patch the container-toolkit images:
+    1. The packaging image:
+```
+BUILD_MULTI_ARCH_IMAGES=true \
+    ARTIFACTS_ROOT=${PACKAGE_CACHE}/packages \
+    VERSION=$(git rev-parse --short=8 HEAD) \
+    make -f deployments/container/Makefile build-packaging
+```
+
+The other images:
+```
+BUILD_MULTI_ARCH_IMAGES=true \
+    ARTIFACTS_ROOT=${PACKAGE_CACHE}/packages \
+    VERSION=$(git rev-parse --short=8 HEAD) \
+    make -f deployments/container/Makefile build-ubuntu20.04
+```
+
+```
+BUILD_MULTI_ARCH_IMAGES=true \
+    ARTIFACTS_ROOT=${PACKAGE_CACHE}/packages \
+    VERSION=$(git rev-parse --short=8 HEAD) \
+    make -f deployments/container/Makefile build-ubi8
+```
+
+Note that even though the other packages were not updated we still regenearate
+both images so as to ensure consistent image versioning.
+
+
+1. Push the updated packages to the kitmaker repository:
+
+```
+export ARTIFACTS_DIR=$(pwd)/release-${VERSION}-patch-$(git rev-parse --short=8 HEAD)-artifacts
+```
+
+```
+./scripts/extract-packages.sh nvidia/container-toolkit:$(git rev-parse --short=8 HEAD)-packaging
+```
+
+
+```
+./scripts/release-kitmaker-artifactory.sh \
+    "https://urm.nvidia.com/artifactory/sw-gpu-cloudnative-generic-local/kitmaker"
+```
+
+```
+regctl login nvcr.io -u \$oauthtoken
+```
+
+```
+BUILD_MULTI_ARCH_IMAGES=true \
+    ARTIFACTS_ROOT=${PACKAGE_CACHE}/packages \
+    VERSION=$(git rev-parse --short=8 HEAD) \
+    OUT_IMAGE_NAME=nvcr.io/ea-cnt/nv_only/container-toolkit \
+    make -f deployments/container/Makefile push-ubuntu20.04
+```
+