[YUNIKORN-143] Travis CI integration (apache#110)

Replace github workflow with Travis-CI.
Add pushing docker images to the apache docker repo. This includes a
name change for the docker images.

Fixes: apache#110

.travis.yml

@@ -0,0 +1,52 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+
+language: go
+
+os:
+  - linux
+
+go:
+  - "1.12"
+
+git:
+  depth: 1
+
+services:
+  - 'docker'
+
+env:
+  - GO111MODULE=on
+
+install: true
+
+jobs:
+  include:
+    - stage: pre-commit checks
+      script:
+      - curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.22.2
+      - make license-check
+      - make test
+      - make lint
+      after_success: bash <(curl -s https://codecov.io/bash)
+    - stage: publish docker image
+      deploy:
+        provider: script
+        script: make push
+        on:
+          branch: master
+          #condition: $TRAVIS_EVENT_TYPE = cron

Makefile

@@ -48,7 +48,7 @@ endif
 # Image build parameters
 # This tag of the image must be changed when pushed to a public repository.
 ifeq ($(REGISTRY),)
-REGISTRY := yunikorn
+REGISTRY := apache
 endif
 
 # Force Go modules even when checked out inside GOPATH
@@ -71,8 +71,8 @@ lint:
 	fi ; \
 	$${lintBin} run --new
 
-.PHONY: common-check-license
-common-check-license:
+.PHONY: license-check
+license-check:
 	@echo "checking license header"
 	@licRes=$$(grep -Lr --include=*.{go,sh} "Licensed to the Apache Software Foundation" .) ; \
 	if [ -n "$${licRes}" ]; then \
@@ -124,7 +124,7 @@ sched_image: scheduler
 	@coreSHA=$$(go list -m "github.com/apache/incubator-yunikorn-core" | cut -d "-" -f5) ; \
 	siSHA=$$(go list -m "github.com/apache/incubator-yunikorn-scheduler-interface" | cut -d "-" -f6) ; \
 	shimSHA=$$(git rev-parse --short=12 HEAD) ; \
-	docker build ./deployments/image/configmap -t ${REGISTRY}/yunikorn-scheduler-k8s:${VERSION} \
+	docker build ./deployments/image/configmap -t ${REGISTRY}/yunikorn:scheduler-${VERSION} \
 	--label "yunikorn-core-revision=$${coreSHA}" \
 	--label "yunikorn-scheduler-interface-revision=$${siSHA}" \
 	--label "yunikorn-k8shim-revision=$${shimSHA}" \
@@ -149,18 +149,25 @@ admission: init
 adm_image: admission
 	@echo "building admission controller docker images"
 	@cp ${ADMISSION_CONTROLLER_BIN_DIR}/${POD_ADMISSION_CONTROLLER_BINARY} ./deployments/image/admission
-	docker build ./deployments/image/admission -t ${REGISTRY}/yunikorn-scheduler-admission-controller:${VERSION}
+	docker build ./deployments/image/admission -t ${REGISTRY}/yunikorn:admission-${VERSION}
 	@rm -f ./deployments/image/admission/${POD_ADMISSION_CONTROLLER_BINARY}
 
 # Build all images based on the production ready version
 .PHONY: image
 image: sched_image adm_image
 
+.PHONY: push
+push: image
+	@echo "push docker images"
+	echo "${DOCKER_PASSWORD}" | docker login -u "${DOCKER_USERNAME}" --password-stdin
+	docker push ${REGISTRY}/yunikorn:scheduler-${VERSION}
+	docker push ${REGISTRY}/yunikorn:admission-${VERSION}
+
 # Run the tests after building
 .PHONY: test
 test:
 	@echo "running unit tests"
-	go test ./... -cover -race -tags deadlock
+	go test ./... -race -tags deadlock -coverprofile=coverage.txt -covermode=atomic
 	go vet $(REPO)...
 
 # Simple clean of generated files only (no local cleanup).

README.md

@@ -1,5 +1,11 @@
 # YuniKorn Scheduler for Kubernetes (yunikorn-k8shim)
 
+[![Build Status](https://travis-ci.org/apache/incubator-yunikorn-k8shim.svg?branch=master)](https://travis-ci.org/apache/incubator-yunikorn-k8shim)
+[![codecov](https://codecov.io/gh/apache/incubator-yunikorn-k8shim/branch/master/graph/badge.svg)](https://codecov.io/gh/apache/incubator-yunikorn-k8shim)
+[![Go Report Card](https://goreportcard.com/badge/github.com/apache/incubator-yunikorn-k8shim)](https://goreportcard.com/report/github.com/apache/incubator-yunikorn-k8shim)
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
+[![Repo Size](https://img.shields.io/github/repo-size/apache/incubator-yunikorn-k8shim)](https://img.shields.io/github/repo-size/apache/incubator-yunikorn-k8shim)
+
 YuniKorn scheduler shim for kubernetes is a customized k8s scheduler, it can be deployed in a K8s cluster and work as the scheduler.
 This project contains the k8s shim layer code for k8s, it depends on `yunikorn-core` which encapsulates all the actual scheduling logic.
 By default, it handles all pods scheduling if pod's spec has field `schedulerName: yunikorn`.