Use Xenial workers

trusty workers have older versions of software that we can't upgrade
ourselves.

Signed-off-by: Nolan Brubaker <brubakern@vmware.com>

.travis.yml

@@ -1,3 +1,4 @@
+dist: xenial
 language: go
 
 go:
@@ -8,4 +9,20 @@ sudo: required
 services:
   - docker
 
-script: hack/ci-check.sh
+script:
+  - export BRANCH=$(if [ "$TRAVIS_PULL_REQUEST" == "false" ]; then echo $TRAVIS_BRANCH; else echo $TRAVIS_PULL_REQUEST_BRANCH; fi)
+  - echo "TRAVIS_BRANCH=$TRAVIS_BRANCH, PR=$TRAVIS_PULL_REQUEST, BRANCH=$BRANCH"
+  - hack/ci-check.sh
+
+# gcloud sdk is needed to upload docker images
+before_deploy:
+  - if [ ! -d ${HOME}/google-cloud-sdk ]; then curl https://sdk.cloud.google.com | bash
+    /dev/stdin --disable-prompts; fi
+
+deploy:
+  - provider: script
+    skip_cleanup: true
+    script: hack/gcr-push.sh
+    on:
+      repo: nrb/velero
+      all_branches: true

Makefile

@@ -21,7 +21,7 @@ BIN ?= velero
 PKG := github.com/heptio/velero
 
 # Where to push the docker image.
-REGISTRY ?= gcr.io/heptio-images
+REGISTRY ?= gcr.io/nolanb-vmware
 
 # Which architecture to build - see $(ALL_ARCH) for options.
 # if the 'local' rule is being run, detect the ARCH from 'go env'
@@ -140,10 +140,10 @@ build-fsfreeze:
 
 push-fsfreeze: BIN = fsfreeze-pause
 push-fsfreeze:
-	@docker push $(IMAGE):$(VERSION)
+	@gcloud docker -- push $(IMAGE):$(VERSION)
 ifeq ($(TAG_LATEST), true)
-	docker tag $(IMAGE):$(VERSION) $(IMAGE):latest
-	docker push $(IMAGE):latest
+	gcloud docker -- tag $(IMAGE):$(VERSION) $(IMAGE):latest
+	gcloud docker -- push $(IMAGE):latest
 endif
 	@docker images -q $(REGISTRY)/fsfreeze-pause:$(VERSION) > .container-$(DOTFILE_IMAGE)
 
@@ -152,7 +152,7 @@ all-containers:
 	$(MAKE) container BIN=velero-restic-restore-helper
 	$(MAKE) build-fsfreeze
 
-container: verify test .container-$(DOTFILE_IMAGE) container-name
+container: .container-$(DOTFILE_IMAGE) container-name
 .container-$(DOTFILE_IMAGE): _output/bin/$(GOOS)/$(GOARCH)/$(BIN) $(DOCKERFILE)
 	@cp $(DOCKERFILE) _output/.dockerfile-$(BIN)-$(GOOS)-$(GOARCH)
 	@docker build --pull -t $(IMAGE):$(VERSION) -f _output/.dockerfile-$(BIN)-$(GOOS)-$(GOARCH) _output
@@ -169,10 +169,10 @@ all-push:
 
 push: .push-$(DOTFILE_IMAGE) push-name
 .push-$(DOTFILE_IMAGE): .container-$(DOTFILE_IMAGE)
-	@docker push $(IMAGE):$(VERSION)
+	@gcloud docker -- push $(IMAGE):$(VERSION)
 ifeq ($(TAG_LATEST), true)
-	docker tag $(IMAGE):$(VERSION) $(IMAGE):latest
-	docker push $(IMAGE):latest
+	gcloud docker -- tag $(IMAGE):$(VERSION) $(IMAGE):latest
+	gcloud docker -- push $(IMAGE):latest
 endif
 	@docker images -q $(IMAGE):$(VERSION) > $@
 

hack/gcr-push.sh

@@ -0,0 +1,65 @@
+#!/bin/bash
+
+set +x
+
+if [[ -z "$TRAVIS" ]]; then
+    echo "This script is intended to be run only on Travis." >&2
+    exit 1
+fi
+
+# Return value is written into HIGHEST
+HIGHEST=""
+function highest_release() {
+    # Loop through the tags since pre-release versions come before the actual versions.
+    # Iterate til we find the first non-pre-release
+
+    # This is not necessarily the most recently made tag; instead, we want it to be the highest semantic version.
+    # The most recent tag could potentially be a lower semantic version, made as a point release for a previous series.
+    # As an example, if v1.3.0 exists and we create v1.2.2, v1.3.0 should still be `latest`.
+    # `git describe --tags $(git rev-list --tags --max-count=1)` would return the most recently made tag.
+
+    for t in $(git tag -l --sort=-v:refname);
+    do
+        # If the tag has alpha, beta or rc in it, it's not "latest"
+        if [[ "$t" == *"beta"* || "$t" == *"alpha"* || "$t" == *"rc"* ]]; then
+            continue
+        fi
+        HIGHEST="$t"
+        break
+    done
+}
+
+if [ "$BRANCH" == "master" ]; then
+    VERSION="$BRANCH"
+elif [ ! -z "$TRAVIS_TAG" ]; then
+    VERSION="$TRAVIS_TAG"
+else
+    # If we're not on master and we're not building a tag, exit early.
+    exit 0
+fi
+
+# Calculate the latest release
+highest_release
+
+# Assume we're not tagging `latest` by default.
+TAG_LATEST=false
+if [[ "$TRAVIS_TAG" == "$HIGHEST" ]]; then
+    TAG_LATEST=true
+fi
+openssl aes-256-cbc -K $encrypted_f58ab4413c21_key -iv $encrypted_f58ab4413c21_iv -in nolanb-vmware-55ce4993acec.json.enc -out nolanb-vmware-55ce4993acec.json -d
+gcloud auth activate-service-account --key-file nolanb-vmware-55ce4993acec.json
+#openssl aes-256-cbc -K $encrypted_f58ab4413c21_key -iv $encrypted_f58ab4413c21_iv -in heptio-images-fac92d2303ac.json.enc -out heptio-images-fac92d2303ac.json -d
+#gcloud auth activate-service-account --key-file heptio-images-fac92d2303ac.json
+unset GIT_HTTP_USER_AGENT
+
+echo "DIAGNOSTICS"
+ls -al .
+ls -al /home/travis/.docker
+cat /home/travis/.docker/config.json
+docker --version
+gcloud --version
+echo "END DIAGNOSTICS"
+
+echo "Building and pushing container images."
+
+VERSION="$VERSION" TAG_LATEST="$TAG_LATEST" make all-containers all-push