Adding Alpine 3.9 Runs to official

There may be a little more work to be done here for displaying what actually ran, but I believe we're ready to use the new Helix Client docker work.

Commit migrated from https://github.com/dotnet/corefx/commit/eeaeb1a11f244dc13e827decd3ab0c810089f747

diff --git a/eng/pipelines/libraries/linux.yml b/eng/pipelines/libraries/linux.yml
index b1f9a2348eaaf2803272f0b5bce81499dda27068..d3e5a5cb1a1d18706cabd1a536e8afaacf312d10 100644 (file)
--- a/eng/pipelines/libraries/linux.yml
+++ b/eng/pipelines/libraries/linux.yml
@@ -89,7 +89,7 @@ jobs:
         - ${{ if eq(parameters.isOfficialBuild, 'true') }}:
           - linuxDefaultQueues: Centos.7.Amd64+RedHat.7.Amd64+Debian.8.Amd64+Debian.9.Amd64+Ubuntu.1604.Amd64+Ubuntu.1804.Amd64+Ubuntu.1810.Amd64+OpenSuse.42.Amd64+SLES.12.Amd64+SLES.15.Amd64+Fedora.27.Amd64+Fedora.28.Amd64
           - linuxArm64Queues: Ubuntu.1604.Arm64
-          - alpineQueues: Alpine.36.Amd64+Alpine.38.Amd64
+          - alpineQueues: Alpine.36.Amd64+Alpine.38.Amd64+ubuntu.1604.amd64@microsoft/dotnet-buildtools-prereqs:alpine-3.9-helix-af66924-20190215231918
 
     # Legs without helix testing
     # There is no point of running legs without outerloop tests, when in an outerloop build.