Use a custom builder image

Use a custom builder image to do all of Ark's builds. This image now
contains k8s.io/code-generator for code generation.

Enable docker in travis to use the builder image.

Signed-off-by: Andy Goldstein <andy.goldstein@gmail.com>

.travis.yml

@@ -3,4 +3,9 @@ language: go
 go:
   - 1.9.x
 
+sudo: required
+
+services:
+  - docker
+
 script: make ci

Makefile

@@ -55,8 +55,6 @@ endif
 
 IMAGE := $(REGISTRY)/$(BIN)
 
-BUILD_IMAGE ?= gcr.io/heptio-images/golang:1.9-alpine3.6
-
 # If you want to build all binaries, see the 'all-build' rule.
 # If you want to build all containers, see the 'all-container' rule.
 # If you want to build AND push all containers, see the 'all-push' rule.
@@ -92,20 +90,21 @@ _output/bin/$(GOOS)/$(GOARCH)/$(BIN): build-dirs
 
 TTY := $(shell tty -s && echo "-t")
 
+BUILDER_IMAGE := ark-builder
+
 # Example: make shell CMD="date > datefile"
-shell: build-dirs
+shell: build-dirs build-image
 	@docker run \
 		-i $(TTY) \
 		--rm \
 		-u $$(id -u):$$(id -g) \
 		-v "$$(pwd)/.go/pkg:/go/pkg" \
-		-v "$$(pwd)/.go/src:/go/src" \
 		-v "$$(pwd)/.go/std:/go/std" \
 		-v "$$(pwd):/go/src/$(PKG)" \
 		-v "$$(pwd)/_output/bin:/output" \
 		-v "$$(pwd)/.go/std/$(GOOS)/$(GOARCH):/usr/local/go/pkg/$(GOOS)_$(GOARCH)_static" \
 		-w /go/src/$(PKG) \
-		$(BUILD_IMAGE) \
+		$(BUILDER_IMAGE) \
 		/bin/sh $(CMD)
 
 DOTFILE_IMAGE = $(subst :,_,$(subst /,_,$(IMAGE))-$(VERSION))
@@ -173,15 +172,12 @@ build-dirs:
 	@mkdir -p _output/bin/$(GOOS)/$(GOARCH)
 	@mkdir -p .go/src/$(PKG) .go/pkg .go/bin .go/std/$(GOOS)/$(GOARCH)
 
-clean: container-clean bin-clean
+build-image:
+	cd hack/build-image && docker build -t $(BUILDER_IMAGE) .
 
-container-clean:
+clean:
 	rm -rf .container-* _output/.dockerfile-* .push-*
-
-bin-clean:
 	rm -rf .go _output
+	docker rmi $(BUILDER_IMAGE)
 
-ci:
-	hack/verify-all.sh
-	hack/test.sh $(SRC_DIRS)
-	GOOS=$(GOOS) GOARCH=$(GOARCH) VERSION=$(VERSION) PKG=$(PKG) BIN=$(BIN) ./hack/build.sh
+ci: build verify test

hack/build-image/Dockerfile

@@ -0,0 +1,21 @@
+# Copyright 2018 the Heptio Ark contributors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM gcr.io/heptio-images/golang:1.9-alpine3.6
+
+RUN mkdir -p /go/src/k8s.io && \
+    cd /go/src/k8s.io && \
+    git clone -b kubernetes-1.9.0 https://github.com/kubernetes/code-generator && \
+    git clone -b kubernetes-1.9.0 https://github.com/kubernetes/apimachinery && \
+    echo chmod -R a+w /go

hack/update-generated-crd-code.sh

@@ -1,4 +1,4 @@
-#!/bin/bash -e
+#!/bin/bash
 #
 # Copyright 2017 the Heptio Ark contributors.
 #
@@ -14,13 +14,26 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-HACK_DIR=$(dirname "${BASH_SOURCE}")
-REPO_ROOT=${HACK_DIR}/..
+set -o errexit
+set -o nounset
+set -o pipefail
+set -o xtrace
 
-${REPO_ROOT}/vendor/k8s.io/code-generator/generate-groups.sh \
+if [[ -z "${GOPATH}" ]]; then
+  GOPATH=~/go
+fi
+
+if [[ ! -d "${GOPATH}/src/k8s.io/code-generator" ]]; then
+  echo "k8s.io/code-generator missing from GOPATH"
+  exit 1
+fi
+
+cd ${GOPATH}/src/k8s.io/code-generator
+
+./generate-groups.sh \
   all \
   github.com/heptio/ark/pkg/generated \
   github.com/heptio/ark/pkg/apis \
   ark:v1 \
-  --go-header-file hack/boilerplate.go.txt \
+  --go-header-file ${GOPATH}/src/github.com/heptio/ark/hack/boilerplate.go.txt \
   $@