review: cherry-pick #19848 for testing.

Signed-off-by: Piotr Sikora <piotrsikora@google.com>

.azure-pipelines/bazel.yml

@@ -25,6 +25,10 @@ steps:
     path: $(Build.StagingDirectory)/repository_cache
   continueOnError: true
 
+- bash: .azure-pipelines/cleanup.sh
+  displayName: "Removing tools from agent"
+  condition: ${{ parameters.managedAgent }}
+
 - bash: |
     echo "disk space at beginning of build:"
     df -h

.azure-pipelines/cleanup.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -e
+
+# Temporary script to remove tools from Azure pipelines agent to create more disk space room.
+sudo apt-get update -y || true
+sudo apt-get purge -y --no-upgrade 'ghc-*' 'zulu-*-azure-jdk' 'libllvm*' 'mysql-*' 'dotnet-*' 'libgl1' \
+  'adoptopenjdk-*' 'azure-cli' 'google-chrome-stable' 'firefox' 'hhvm'
+
+dpkg-query -Wf '${Installed-Size}\t${Package}\n' | sort -rn

.azure-pipelines/pipelines.yml

@@ -302,6 +302,8 @@ stages:
     pool:
       vmImage: "ubuntu-18.04"
     steps:
+    - bash: .azure-pipelines/cleanup.sh
+      displayName: "Removing tools from agent"
     - bash: |
         echo "disk space at beginning of build:"
         df -h