Merge pull request #7021 from travisn/golang-1-5

ci: Build with golang 1.15.7

go.mod

@@ -1,6 +1,6 @@
 module github.com/rook/rook
 
-go 1.13
+go 1.15
 
 require (
 	github.com/aws/aws-sdk-go v1.35.24

images/cross/Dockerfile

@@ -17,18 +17,18 @@ FROM ubuntu:16.04
 # install build tools, compilers and cross compilers for all supported platforms
 RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get install -yy -q --no-install-recommends \
-        awscli \
-        ca-certificates \
-        curl \
-        docker.io \
-        git \
-        jq \
-        lsb-release \
-        make \
-        rsync \
-        runit \
-        sudo \
-        zip && \
+    awscli \
+    ca-certificates \
+    curl \
+    docker.io \
+    git \
+    jq \
+    lsb-release \
+    make \
+    rsync \
+    runit \
+    sudo \
+    zip && \
     curl -sL https://deb.nodesource.com/setup_10.x | bash - && \
     DEBIAN_FRONTEND=noninteractive apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get install -yy -q --no-install-recommends nodejs && \
@@ -37,8 +37,8 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
 # install golang from the official repo
-RUN GO_VERSION=1.13.8 && \
-    GO_HASH=0567734d558aef19112f2b2873caa0c600f1b4a5827930eb5a7f35235219e9d8 && \
+RUN GO_VERSION=1.15.7 && \
+    GO_HASH=0d142143794721bb63ce6c8a6180c4062bcf8ef4715e7d6d6609f3a8282629b3 && \
     curl -fsSL https://golang.org/dl/go${GO_VERSION}.linux-amd64.tar.gz -o golang.tar.gz && \
     echo "${GO_HASH}  golang.tar.gz" | sha256sum -c - && \
     tar -C /usr/local -xzf golang.tar.gz && \