Ubuntu: speed up updating packages

[chipitsine]

Description

microsoft package adds feeds for three architectures

deb [arch=amd64,arm64,armhf signed-by=/usr/share/keyrings/microsoft-prod.gpg] https://packages.microsoft.com/ubuntu/24.04/prod noble main

which adds some overhead for "apt-get update"

for every single run it's about 0 or 1 seconds.

but I guess that Github can benefit from it at a scale.

the following patch should limit feed to current arch only

diff --git a/images/ubuntu/scripts/build/install-ms-repos.sh b/images/ubuntu/scripts/build/install-ms-repos.sh
index b4a56e8b..5b8280be 100644
--- a/images/ubuntu/scripts/build/install-ms-repos.sh
+++ b/images/ubuntu/scripts/build/install-ms-repos.sh
@@ -10,6 +10,12 @@ os_label=$(lsb_release -rs)
 wget https://packages.microsoft.com/config/ubuntu/$os_label/packages-microsoft-prod.deb
 dpkg -i packages-microsoft-prod.deb

+#
+# limit packages feed to current arch, speed up "apt-get update"
+#
+arch=$(dpkg --print-architecture)
+echo "APT::Architecture=${arch};" > /etc/apt/apt.conf.d/99arch
+
 # update
 apt-get install apt-transport-https ca-certificates curl software-properties-common
 apt-get update

Platforms affected

• Azure DevOps
• GitHub Actions - Standard Runners
• GitHub Actions - Larger Runners

Runner images affected

• Ubuntu 20.04
• Ubuntu 22.04
• Ubuntu 24.04
• macOS 11
• macOS 12
• macOS 13
• macOS 13 Arm64
• macOS 14
• macOS 14 Arm64
• Windows Server 2019
• Windows Server 2022

Image version and build link

any Ubuntu

Is it regression?

nope

Expected behavior

use only required feed

Actual behavior

all feed ised

Repro steps

run "apt-get update" from pipeline

[RaviAkshintala]

@chipitsine Thank you for bringing this issue to us. We are looking into this issue, we will update you on this issue after investigating.