Fix krane build (#1223)

cloudbuild.yaml

@@ -1,3 +1,5 @@
+timeout: 3600s  # 60 minutes
+
 steps:
 - name: golang
   entrypoint: sh
@@ -7,7 +9,6 @@ steps:
     set -eux
 
     export GOROOT=/usr/local/go
-    export GO111MODULE=off
     export KO_DOCKER_REPO="gcr.io/$PROJECT_ID"
     export GOFLAGS="-ldflags=-X=github.com/google/go-containerregistry/cmd/crane/cmd.Version=$COMMIT_SHA"
 
@@ -21,23 +22,32 @@ steps:
     curl -L -o ko.tar.gz https://github.com/google/ko/releases/download/v0.8.2/ko_0.8.2_Linux_i386.tar.gz
     tar xvfz ko.tar.gz
     chmod +x ko
-    alias ko=./ko
+    alias ko=$${PWD}/ko
 
     # Use the ko binary to build the crane-ish builder images.
     ko publish --platform=all -B github.com/google/go-containerregistry/cmd/crane  -t latest -t "$COMMIT_SHA" -t "$TAG_NAME"
     ko publish --platform=all -B github.com/google/go-containerregistry/cmd/gcrane -t latest -t "$COMMIT_SHA" -t "$TAG_NAME"
+    # ./cmd/krane is a separate module, so switch directories.
+    cd ./cmd/krane
     ko publish --platform=all -B github.com/google/go-containerregistry/cmd/krane -t latest -t "$COMMIT_SHA" -t "$TAG_NAME"
+    cd ../../
 
     # Use the ko binary to build the crane-ish builder *debug* images.
     export KO_CONFIG_PATH=./.ko/debug/
     ko publish --platform=all -B github.com/google/go-containerregistry/cmd/crane  -t "debug"
     ko publish --platform=all -B github.com/google/go-containerregistry/cmd/gcrane -t "debug"
+    # ./cmd/krane is a separate module, so switch directories.
+    cd ./cmd/krane
     ko publish --platform=all -B github.com/google/go-containerregistry/cmd/krane -t "debug"
+    cd ../../
 
     # Tag-specific debug images are pushed to gcr.io/go-containerregistry/TOOL/debug:...
     KO_DOCKER_REPO=gcr.io/$PROJECT_ID/crane/debug  ko publish --platform=all --bare github.com/google/go-containerregistry/cmd/crane  -t latest -t "$COMMIT_SHA" -t "$TAG_NAME"
     KO_DOCKER_REPO=gcr.io/$PROJECT_ID/gcrane/debug ko publish --platform=all --bare github.com/google/go-containerregistry/cmd/gcrane -t latest -t "$COMMIT_SHA" -t "$TAG_NAME"
+    # ./cmd/krane is a separate module, so switch directories.
+    cd ./cmd/krane
     KO_DOCKER_REPO=gcr.io/$PROJECT_ID/krane/debug ko publish --platform=all --bare github.com/google/go-containerregistry/cmd/krane -t latest -t "$COMMIT_SHA" -t "$TAG_NAME"
+    cd ../../
 
 # Use the crane builder to get the digest for crane-ish.
 - name: gcr.io/$PROJECT_ID/crane