From 912b6e23da9e121a30a54ee16d16f33133179a56 Mon Sep 17 00:00:00 2001
From: Josh Powers <powersj@fastmail.com>
Date: Fri, 10 Jun 2022 10:46:32 -0600
Subject: [PATCH 1/2] test: add install go for linux, use in integraiton tests

In order to ensure all our testing is using the same version of go
across all tests, add an install go for linux.
---
 .circleci/config.yml         |  1 +
 docs/developers/PACKAGING.md |  2 +-
 scripts/installgo_linux.sh   | 36 ++++++++++++++++++++++++++++++++++++
 3 files changed, 38 insertions(+), 1 deletion(-)
 create mode 100644 scripts/installgo_linux.sh

diff --git a/.circleci/config.yml b/.circleci/config.yml
index d7f98e8ef618a..e126a7fa1679a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -210,6 +210,7 @@ jobs:
     steps:
       - checkout
       - check-changed-files-or-halt
+      - run: 'sh ./scripts/installgo_linux.sh'
       - run: 'make deps'
       - run: 'make test-integration'
   test-go-mac:
diff --git a/docs/developers/PACKAGING.md b/docs/developers/PACKAGING.md
index 1f2838898354f..d3e5780cce57b 100644
--- a/docs/developers/PACKAGING.md
+++ b/docs/developers/PACKAGING.md
@@ -14,7 +14,7 @@ Incrementing the version is maintained by the core Telegraf team because it requ
 
 1. Within the `Makefile` and `.circleci\config.yml` update the Go versions to the new version number
 2. Run `make ci`, this requires quay.io internal permissions
-3. The files `scripts\installgo_mac.sh` and `scripts\installgo_windows.sh` need to be updated as well with the new Go version and SHA
+3. The files `scripts\installgo_linux.sh`, `scripts\installgo_mac.sh`, and `scripts\installgo_windows.sh` need to be updated as well with the new Go version and SHA
 4. Create a pull request with these new changes, and verify the CI passes and uses the new docker image
 
 See the [previous PRs](https://github.com/influxdata/telegraf/search?q=chore+update+go&type=commits) as examples.
diff --git a/scripts/installgo_linux.sh b/scripts/installgo_linux.sh
new file mode 100644
index 0000000000000..46bfad28a6b25
--- /dev/null
+++ b/scripts/installgo_linux.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+
+set -eux
+
+ARCH=$(uname -m)
+GO_VERSION="1.18.3"
+GO_ARCH="linux-amd64"
+# from https://golang.org/dl
+GO_VERSION_SHA="956f8507b302ab0bb747613695cdae10af99bbd39a90cae522b7c0302cc27245"
+
+# Download Go and verify Go tarball
+setup_go () {
+    echo "installing go"
+    curl -L https://golang.org/dl/go${GO_VERSION}.${GO_ARCH}.tar.gz --output go${GO_VERSION}.${GO_ARCH}.tar.gz
+    if ! echo "${GO_VERSION_SHA}  go${GO_VERSION}.${GO_ARCH}.tar.gz" | shasum --algorithm 256 --check -; then
+        echo "Checksum failed" >&2
+        exit 1
+    fi
+
+    sudo tar -C /usr/local -xzf go${GO_VERSION}.${GO_ARCH}.tar.gz
+
+    echo $PATH
+    which go
+    go version
+}
+
+if command -v go >/dev/null 2>&1; then
+    echo "Go is already installed"
+    v=$(go version | { read -r _ _ v _; echo "${v#go}"; })
+    echo "$v is installed, required version is ${GO_VERSION}"
+    if [ "$v" != ${GO_VERSION} ]; then
+        setup_go
+    fi
+else
+    setup_go
+fi

From b48b2b6fbfa57138c756c135b098fdb7e137a1f9 Mon Sep 17 00:00:00 2001
From: Josh Powers <powersj@fastmail.com>
Date: Fri, 10 Jun 2022 11:04:12 -0600
Subject: [PATCH 2/2] shellcheck

---
 scripts/installgo_linux.sh | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/scripts/installgo_linux.sh b/scripts/installgo_linux.sh
index 46bfad28a6b25..ad15d0a04837b 100644
--- a/scripts/installgo_linux.sh
+++ b/scripts/installgo_linux.sh
@@ -2,7 +2,6 @@
 
 set -eux
 
-ARCH=$(uname -m)
 GO_VERSION="1.18.3"
 GO_ARCH="linux-amd64"
 # from https://golang.org/dl
@@ -19,7 +18,7 @@ setup_go () {
 
     sudo tar -C /usr/local -xzf go${GO_VERSION}.${GO_ARCH}.tar.gz
 
-    echo $PATH
+    echo "$PATH"
     which go
     go version
 }