go: update to go 1.11

.travis.yml

@@ -28,7 +28,7 @@ services:
 
 language: go
 go:
-  - 1.9
+  - 1.11
 go_import_path: vitess.io/vitess
 env:
   global:

doc/GettingStarted.md

@@ -73,7 +73,7 @@ OS X 10.11 (El Capitan) should work as well, the installation instructions are b
 
 In addition, Vitess requires the software and libraries listed below.
 
-1.  [Install Go 1.9+](http://golang.org/doc/install).
+1.  [Install Go 1.11+](http://golang.org/doc/install).
 
 2.  Install [MariaDB 10.0](https://downloads.mariadb.org/) or
     [MySQL 5.6](http://dev.mysql.com/downloads/mysql). You can use any

doc/GettingStartedKubernetes.md

@@ -13,13 +13,13 @@ To complete the exercise in this guide, you must
 [install etcd-operator](https://github.com/coreos/etcd-operator/blob/master/doc/user/install_guide.md)
 in the same namespace in which you plan to run Vitess.
 
-You also must locally install Go 1.9+,
+You also must locally install Go 1.11+,
 the Vitess' `vtctlclient` tool, and `kubectl`.
 The following sections explain how to set these up in your environment.
 
-### Install Go 1.9+
+### Install Go 1.11+
 
-You need to install [Go 1.9+](http://golang.org/doc/install) to build the
+You need to install [Go 1.11+](http://golang.org/doc/install) to build the
 `vtctlclient` tool, which issues commands to Vitess.
 
 After installing Go, make sure your `GOPATH` environment

docker/bootstrap/Dockerfile.common

@@ -1,4 +1,4 @@
-FROM golang:1.9
+FROM golang:1.11
 
 # Install Vitess build dependencies
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \

test/cluster/keytar/config/vitess_config.yaml

@@ -3,8 +3,8 @@ install:
     - python-mysqldb
   extra:
     - apt-get update
-    - wget https://storage.googleapis.com/golang/go1.9.linux-amd64.tar.gz
-    - tar -C /usr/local -xzf go1.9.linux-amd64.tar.gz
+    - wget https://storage.googleapis.com/golang/go1.11.1.linux-amd64.tar.gz
+    - tar -C /usr/local -xzf go1.11.1.linux-amd64.tar.gz
     - wget https://storage.googleapis.com/kubernetes-helm/helm-v2.1.3-linux-amd64.tar.gz
     - tar -zxvf helm-v2.1.3-linux-amd64.tar.gz
     - pip install numpy

vagrant-scripts/bootstrap_vm.sh

@@ -35,7 +35,7 @@ apt-get install -y make \
                    unzip
 
 # Install golang
-GO_VER='1.9.1'
+GO_VER='1.11.1'
 GO_DOWNLOAD_URL='https://storage.googleapis.com/golang'
 GO_FILENAME="go${GO_VER}.linux-amd64.tar.gz"
 wget "${GO_DOWNLOAD_URL}/${GO_FILENAME}" -O "${TMP_DIR}/${GO_FILENAME}"