Squashed 'release-tools/' changes from 7bc70e5..1748b16

1748b16 Merge pull request kubernetes-csi#136 from pohly/go-1.16
ec844ea remove travis.yml, Go 1.16
df76aba Merge pull request kubernetes-csi#134 from andyzhangx/add-build-arg
e314a56 add build-arg ARCH for building multi-arch images, e.g. ARG ARCH FROM k8s.gcr.io/build-image/debian-base-${ARCH}:v2.1.3

git-subtree-dir: release-tools
git-subtree-split: 1748b16

Author: pohly

README.md

@@ -21,7 +21,11 @@ The expected repository layout is:
    Dockerfile in the root when only building a single command
  - `Makefile` - includes `release-tools/build.make` and sets
    configuration variables
- - `.travis.yml` - a symlink to `release-tools/.travis.yml`
+ - `.prow.sh` script which imports `release-tools/prow.sh`
+   and may contain further customization
+ - `.cloudbuild.sh` and `cloudbuild.yaml` as symlinks to
+   the corresponding files in `release-tools` or (if necessary)
+   as custom files
 
 To create a release, tag a certain revision with a name that
 starts with `v`, for example `v1.0.0`, then `make push`

build.make

@@ -149,6 +149,7 @@ $(CMDS:%=push-multiarch-%): push-multiarch-%: check-pull-base-ref build-%
 				--platform=$$os/$$arch \
 				--file $$(eval echo \$${dockerfile_$$os}) \
 				--build-arg binary=./bin/$*$$suffix \
+				--build-arg ARCH=$$arch \
 				--label revision=$(REV) \
 				.; \
 		done; \

cloudbuild.yaml

@@ -25,7 +25,7 @@ options:
   substitution_option: ALLOW_LOOSE
 steps:
   # The image must contain bash and curl. Ideally it should also contain
-  # the desired version of Go (currently defined in release-tools/travis.yml),
+  # the desired version of Go (currently defined in release-tools/prow.sh),
   # but that just speeds up the build and is not required.
   - name: 'gcr.io/k8s-testimages/gcb-docker-gcloud:v20200421-a2bf5f8'
     entrypoint: ./.cloudbuild.sh

prow.sh

@@ -85,14 +85,7 @@ configvar CSI_PROW_BUILD_PLATFORMS "linux amd64; windows amd64 .exe; linux ppc64
 # which is disabled with GOFLAGS=-mod=vendor).
 configvar GOFLAGS_VENDOR "$( [ -d vendor ] && echo '-mod=vendor' )" "Go flags for using the vendor directory"
 
-# Go versions can be specified separately for different tasks
-# If the pre-installed Go is missing or a different
-# version, the required version here will get installed
-# from https://golang.org/dl/.
-go_from_travis_yml () {
-    grep "^ *- go:" "${RELEASE_TOOLS_ROOT}/travis.yml" | sed -e 's/.*go: *//'
-}
-configvar CSI_PROW_GO_VERSION_BUILD "$(go_from_travis_yml)" "Go version for building the component" # depends on component's source code
+configvar CSI_PROW_GO_VERSION_BUILD "1.16" "Go version for building the component" # depends on component's source code
 configvar CSI_PROW_GO_VERSION_E2E "" "override Go version for building the Kubernetes E2E test suite" # normally doesn't need to be set, see install_e2e
 configvar CSI_PROW_GO_VERSION_SANITY "${CSI_PROW_GO_VERSION_BUILD}" "Go version for building the csi-sanity test suite" # depends on CSI_PROW_SANITY settings below
 configvar CSI_PROW_GO_VERSION_KIND "${CSI_PROW_GO_VERSION_BUILD}" "Go version for building 'kind'" # depends on CSI_PROW_KIND_VERSION below

travis.yml

@@ -29,8 +29,9 @@ die () {
 version=$("$GO" version) || die "determining version of $GO failed"
 # shellcheck disable=SC2001
 majorminor=$(echo "$version" | sed -e 's/.*go\([0-9]*\)\.\([0-9]*\).*/\1.\2/')
-# shellcheck disable=SC2001
-expected=$(grep "^ *- go:" "release-tools/travis.yml" | sed -e 's/.*go: *\([0-9]*\)\.\([0-9]*\).*/\1.\2/')
+# SC1091: Not following: release-tools/prow.sh was not specified as input (see shellcheck -x).
+# shellcheck disable=SC1091
+expected=$(. release-tools/prow.sh && echo "$$CSI_PROW_GO_VERSION_BUILD")
 
 if [ "$majorminor" != "$expected" ]; then
     cat >&2 <<EOF