Link linux binary statically. (#253)

Makefile

@@ -1,15 +1,22 @@
 GOOS := linux
 GOARCH := amd64
-CGO_ENABLED := 0
+CGO_ENABLED := 1
+TAGS := -tags 'netgo'
 BINARY := cloudctl-$(GOOS)-$(GOARCH)
 
 SHA := $(shell git rev-parse --short=8 HEAD)
 GITVERSION := $(shell git describe --long --all)
 BUILDDATE := $(shell date --rfc-3339=seconds)
 VERSION := $(or ${VERSION},$(shell git describe --tags --exact-match 2> /dev/null || git symbolic-ref -q --short HEAD || git rev-parse --short HEAD))
 
+ifeq ($(CGO_ENABLED),1)
+ifeq ($(GOOS),linux)
+	LINKMODE := -linkmode external -extldflags '-static -s -w'
+	TAGS := -tags 'osusergo netgo static_build'
+endif
+endif
+
 LINKMODE := $(LINKMODE) \
-		 -s -w \
 		 -X 'github.com/metal-stack/v.Version=$(VERSION)' \
 		 -X 'github.com/metal-stack/v.Revision=$(GITVERSION)' \
 		 -X 'github.com/metal-stack/v.GitSHA1=$(SHA)' \
@@ -18,7 +25,7 @@ LINKMODE := $(LINKMODE) \
 .PHONY: build
 build:
 	go build \
-		-tags netgo \
+		$(TAGS) \
 		-ldflags \
 		"$(LINKMODE)" \
 		-o bin/$(BINARY) \

cmd/output/shootprinter.go

@@ -70,6 +70,8 @@ func (s ShootLastErrorsTablePrinter) Print(data []*models.V1beta1LastError) {
 	s.wideHeader = []string{"Time", "Task", "Description"}
 	s.shortHeader = []string{"Time", "Task", "Description"}
 	for _, e := range data {
+		e := e
+
 		wide := []string{
 			strValue(&e.LastUpdateTime),
 			strValue(&e.TaskID),