Merge pull request #60 from riccardobiraghi/travis

Ensure compatibility with Docker 1.12

.travis.yml

@@ -5,7 +5,7 @@ go:
   - "1.10"
 
 services:
- - docker
+  - docker
 
 go_import_path: "github.com/ibm-messaging/mq-container"
 
@@ -13,6 +13,19 @@ cache:
   directories:
     - downloads
 
+jobs:
+  include:
+    - if: type IN (pull_request)
+      env: DOCKER_DOWNGRADE="docker save -o images.tar mqadvanced-server-dev mq-dev-jms-test &&
+        sudo apt-get autoremove -y docker-ce &&
+        curl -fsSL \"https://apt.dockerproject.org/gpg\" | sudo apt-key add - &&
+        sudo apt-add-repository \"deb https://apt.dockerproject.org/repo ubuntu-$(lsb_release -cs) main\" &&
+        sudo apt-get update &&
+        sudo apt-get install docker-engine=1.12.6-0~ubuntu-$(lsb_release -cs) &&
+        docker load -q -i images.tar &&
+        export DOCKER_API_VERSION=\"1.24\""
+    - env: DOCKER_DOWNGRADE="echo nothing to be done"
+
 before_install:
   - curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
   - sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
@@ -26,11 +39,13 @@ install:
   - echo nothing
 
 script:
- - make deps
- - make vet
- - make build-devserver
- - make test-devserver
+  - make deps
+  - make vet
+  - make build-devserver
+  - make build-devjmstest
+  - eval "$DOCKER_DOWNGRADE"
+  - make test-devserver
 
 after_success:
- - go get golang.org/x/lint/golint
- - make lint
+  - go get golang.org/x/lint/golint
+  - make lint

Makefile

@@ -47,7 +47,7 @@ ARCH = $(shell uname -m)
 BUILD_SERVER_CONTAINER=build-server
 # NUM_CPU is the number of CPUs available to Docker.  Used to control how many
 # test run in parallel
-NUM_CPU=$(shell docker info --format "{{ .NCPU }}")
+NUM_CPU = $(or $(shell docker info --format "{{ .NCPU }}"),2)
 # BASE_IMAGE_TAG is a normalized version of BASE_IMAGE, suitable for use in a Docker tag
 BASE_IMAGE_TAG=$(subst /,-,$(subst :,-,$(BASE_IMAGE)))
 MQ_IMAGE_DEVSERVER_BASE=mqadvanced-server-dev-base:$(MQ_VERSION)-$(ARCH)-$(BASE_IMAGE_TAG)
@@ -143,7 +143,7 @@ test-unit:
 
 .PHONY: test-advancedserver
 test-advancedserver: test/docker/vendor
-	$(info $(SPACER)$(shell printf $(TITLE)"Test $(MQ_IMAGE_ADVANCEDSERVER) on Docker"$(END)))
+	$(info $(SPACER)$(shell printf $(TITLE)"Test $(MQ_IMAGE_ADVANCEDSERVER) on $(shell docker --version)"$(END)))
 	cd test/docker && TEST_IMAGE=$(MQ_IMAGE_ADVANCEDSERVER) go test -parallel $(NUM_CPU) $(TEST_OPTS_DOCKER)
 
 .PHONY: build-devjmstest
@@ -152,13 +152,13 @@ build-devjmstest:
 	cd test/messaging && docker build --tag $(DEV_JMS_IMAGE) .
 
 .PHONY: test-devserver
-test-devserver: test/docker/vendor build-devjmstest
-	$(info $(SPACER)$(shell printf $(TITLE)"Test $(MQ_IMAGE_DEVSERVER) on Docker"$(END)))
+test-devserver: test/docker/vendor
+	$(info $(SPACER)$(shell printf $(TITLE)"Test $(MQ_IMAGE_DEVSERVER) on $(shell docker --version)"$(END)))
 	cd test/docker && TEST_IMAGE=$(MQ_IMAGE_DEVSERVER) DEV_JMS_IMAGE=$(DEV_JMS_IMAGE) go test -parallel $(NUM_CPU) -tags mqdev $(TEST_OPTS_DOCKER)
 
 .PHONY: test-advancedserver-cover
 test-advancedserver-cover: test/docker/vendor
-	$(info $(SPACER)$(shell printf $(TITLE)"Test $(MQ_IMAGE_ADVANCEDSERVER) on Docker with code coverage"$(END)))
+	$(info $(SPACER)$(shell printf $(TITLE)"Test $(MQ_IMAGE_ADVANCEDSERVER) with code coverage on $(shell docker --version)"$(END)))
 	rm -f ./coverage/unit*.cov
 	# Run unit tests with coverage, for each package under 'internal'
 	go list -f '{{.Name}}' ./internal/... | xargs -I {} go test -cover -covermode count -coverprofile ./coverage/unit-{}.cov ./internal/{}