Update to Go 1.16.2 (#8989)

.circleci/config.yml

@@ -12,7 +12,7 @@ executors:
   go-1_16:
     working_directory: '/go/src/github.com/influxdata/telegraf'
     docker:
-      - image: 'quay.io/influxdb/telegraf-ci:1.16.1'
+      - image: 'quay.io/influxdb/telegraf-ci:1.16.2'
     environment:
       GOFLAGS: -p=8
   mac:
@@ -37,14 +37,6 @@ commands:
       - run: 'GOARCH=<< parameters.goarch >> make check'
       - run: 'GOARCH=<< parameters.goarch >> make check-deps'
       - run: 'GOARCH=<< parameters.goarch >> make test'
-  test-go-mac:
-    steps:
-      - checkout
-      - attach_workspace:
-          at: '/'
-      - run: 'make'
-      - run: 'make check'
-      - run: 'make test'
   package:
     parameters:
       nightly:
@@ -88,31 +80,6 @@ jobs:
           root: '/go'
           paths:
             - '*'
-  macdeps:
-    executor: mac
-    steps:
-      - checkout
-      - restore_cache:
-          key: mac-go-mod-v3-{{ checksum "go.sum" }}
-      - run: 'brew update'
-      - run: 'brew install go@1.16'
-      - run: 'make deps'
-      - run: 'make tidy'
-      - save_cache:
-          name: 'go module cache'
-          key: mac-go-mod-v3-{{ checksum "go.sum" }}
-          paths:
-            - '~/go/pkg/mod'
-            - '/usr/local/Cellar/go'
-            - '/usr/local/bin/go'
-            - '/usr/local/bin/gofmt'
-      - persist_to_workspace:
-          root: '/'
-          paths:
-            - 'usr/local/bin/go'
-            - 'usr/local/Cellar/go'
-            - 'usr/local/bin/gofmt'
-            - 'Users/distiller/go'
   test-go-1_15:
     executor: go-1_15
     steps:
@@ -131,17 +98,32 @@ jobs:
     steps:
       - test-go:
           goarch: "386"
-  test-go-darwin:
+  test-go-mac:
     executor: mac
     steps:
-      - test-go-mac
+      - checkout
+      - restore_cache:
+          key: mac-go-mod-v0-{{ checksum "go.sum" }}
+      - run: 'sh ./scripts/mac_installgo.sh'
+      - save_cache:
+          name: 'Saving cache'
+          key: mac-go-mod-v0-{{ checksum "go.sum" }}
+          paths:
+            - '/usr/local/Cellar/go'
+            - '/usr/local/bin/go'
+            - '/usr/local/bin/gofmt'
+      - run: 'make deps'
+      - run: 'make tidy'
+      - run: 'make'
+      - run: 'make check'
+      - run: 'make test'
   test-go-windows:
     executor:
         name: win/default
         shell: powershell.exe
     steps:
       - checkout
-      - run: choco upgrade golang --version=1.15.8
+      - run: choco upgrade golang --version=1.16.2
       - run: choco install make
       - run: git config --system core.longpaths true
       - run: make test-windows
@@ -201,10 +183,6 @@ workflows:
   version: 2
   check:
     jobs:
-      - 'macdeps':
-          filters:
-            tags:
-              only: /.*/
       - 'deps':
           filters:
             tags:
@@ -233,9 +211,7 @@ workflows:
           filters:
             tags:
               only: /.*/
-      - 'test-go-darwin':
-          requires:
-            - 'macdeps'
+      - 'test-go-mac':
           filters:
             tags: # only runs on tags if you specify this filter
               only: /.*/
@@ -246,7 +222,7 @@ workflows:
       - 'package':
           requires:
             - 'test-go-windows'
-            - 'test-go-darwin'
+            - 'test-go-mac'
             - 'test-go-1_15'
             - 'test-go-1_15-386'
             - 'test-go-1_16'
@@ -254,7 +230,7 @@ workflows:
       - 'release':
           requires:
             - 'test-go-windows'
-            - 'test-go-darwin'
+            - 'test-go-mac'
             - 'test-go-1_15'
             - 'test-go-1_15-386'
             - 'test-go-1_16'
@@ -279,7 +255,6 @@ workflows:
   nightly:
     jobs:
       - 'deps'
-      - 'macdeps'
       - 'test-go-1_15':
           requires:
             - 'deps'
@@ -292,14 +267,12 @@ workflows:
       - 'test-go-1_16-386':
           requires:
             - 'deps'
-      - 'test-go-darwin':
-          requires:
-            - 'macdeps'
+      - 'test-go-mac'
       - 'test-go-windows'
       - 'nightly':
           requires:
             - 'test-go-windows'
-            - 'test-go-darwin'
+            - 'test-go-mac'
             - 'test-go-1_15'
             - 'test-go-1_15-386'
             - 'test-go-1_16'

Makefile

@@ -185,8 +185,8 @@ ci-1.15:
 
 .PHONY: ci-1.16
 ci-1.16:
-	docker build -t quay.io/influxdb/telegraf-ci:1.16.1 - < scripts/ci-1.16.docker
-	docker push quay.io/influxdb/telegraf-ci:1.16.1
+	docker build -t quay.io/influxdb/telegraf-ci:1.16.2 - < scripts/ci-1.16.docker
+	docker push quay.io/influxdb/telegraf-ci:1.16.2
 
 .PHONY: install
 install: $(buildbin)

scripts/alpine.docker

@@ -1,4 +1,4 @@
-FROM golang:1.16.1 as builder
+FROM golang:1.16.2 as builder
 WORKDIR /go/src/github.com/influxdata/telegraf
 
 COPY . /go/src/github.com/influxdata/telegraf

scripts/buster.docker

@@ -1,4 +1,4 @@
-FROM golang:1.16.1-buster as builder
+FROM golang:1.16.2-buster as builder
 WORKDIR /go/src/github.com/influxdata/telegraf
 
 COPY . /go/src/github.com/influxdata/telegraf

scripts/ci-1.16.docker

@@ -1,4 +1,4 @@
-FROM golang:1.16.1
+FROM golang:1.16.2
 
 RUN chmod -R 755 "$GOPATH"
 

scripts/mac_installgo.sh

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+version="1.16.2"
+# This path is cachable, while saving directly in /usr/local/ will cause issues restoring the cache
+path="/usr/local/Cellar"
+
+# Download Go directly from tar, the reason we aren't using brew: it is slow to update and we can't pull specific minor versions
+setup_go () {
+    echo "installing go"
+    curl -OL https://golang.org/dl/go${version}.darwin-amd64.tar.gz --output go${version}.darwin-amd64.tar.gz
+    sudo rm -rf ${path}/go
+    sudo tar -C $path -xzf go${version}.darwin-amd64.tar.gz
+    ln -sf ${path}/go/bin/go /usr/local/bin/go
+    ln -sf ${path}/go/bin/gofmt /usr/local/bin/gofmt
+}
+
+if command -v go &> /dev/null; then
+    echo "Go is already installed"
+    v=`go version | { read _ _ v _; echo ${v#go}; }`
+    echo "$v is installed, required version is $version"
+    if [ "$v" != $version ]; then
+        setup_go
+        go version
+    fi
+else
+    setup_go
+fi