*WIP* build also against go 1.12 (#42)

* build also against go 1.12
* switch to go 1.12 container
* fix CLI regression

.travis.yml

@@ -3,10 +3,11 @@ sudo: false
 
 go:
     - 1.11
+    - 1.12
 
 install:
     - go get -u github.com/Masterminds/glide
-    - go get -u github.com/golang/lint/golint
+    - go get -u golang.org/x/lint/golint 
     - go get -u github.com/mattn/goveralls
     - go get -u github.com/golang/mock/mockgen
     - go get -u github.com/golang/mock/gomock

Makefile

@@ -70,7 +70,7 @@ clean: FORCE
 
 build/docker.tar: dependencies
 ifeq ($(OS), Darwin)
-	docker run --rm -v "$$PWD":"/go/src/github.com/sapcc/maia" -w "/go/src/github.com/sapcc/maia" -e "GOPATH=/go" golang:1.11-stretch env CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go build -a -ldflags '-s -w -linkmode external -extldflags -static' -o maia_linux_amd64
+	docker run --rm -v "$$PWD":"/go/src/github.com/sapcc/maia" -w "/go/src/github.com/sapcc/maia" -e "GOPATH=/go" golang:1.12-stretch env CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go build -a -ldflags '-s -w -linkmode external -extldflags -static' -o maia_linux_amd64
 else
 	env CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go build -a -ldflags '-s -w -linkmode external -extldflags -static' -o maia_linux_amd64
 endif

README.md

@@ -31,6 +31,8 @@ If you don't use OpenStack, you can still use Maia CLI as a feature-complete she
 
 # Installation
 
+Maia can be built with Go 1.11 and 1.12. Older versions are not supported. Newer versions are not tested.
+
 Via Makefile
 
 * `make` to compile and run the binaries from the `build/` directory
@@ -59,4 +61,4 @@ Maia service from scratch and integrate with Prometheus.
 # Integrating and Extending Maia
 
 The [Maia developers guide](./docs/developers-guide.md) describes how to use the Maia API. Also
-it contains information how to contribute to the Maia development.
+it contains information how to contribute to the Maia development.

pkg/keystone/keystone.go

@@ -526,7 +526,7 @@ func (d *keystone) authenticate(authOpts gophercloud.AuthOptions, asServiceUser
 		endpointURL: endpointURL,
 	}
 
-	util.LogDebug("add token cache entry for token %s... for scope %+v", authOpts.TokenID[:1+len(authOpts.TokenID)/4], authOpts.Scope)
+	util.LogDebug("add token cache entry for token %s... for scope %+v", tokenData.Token[:1+len(tokenData.Token)/4], authOpts.Scope)
 	d.tokenCache.Set(authOpts2StringKey(authOpts), &ce, cache.DefaultExpiration)
 	return &context, endpointURL, nil
 }