From b7abbdf02e27414ff7217fa1d13bcf941cd45e59 Mon Sep 17 00:00:00 2001
From: Thomas Flament <thomas.flament@scality.com>
Date: Thu, 26 Mar 2026 09:56:17 +0100
Subject: [PATCH] fix(ci): fix flaky yarn install in lint-and-build-ctst job

Yarn v1's default parallel fetching can race during tar extraction,
corrupting packages in the cache. Add --network-concurrency 1 to
serialize fetching, and a cache clean + retry fallback for caches
that are already corrupt.

Issue: ZENKO-5246
---
 .github/workflows/end2end.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/end2end.yaml b/.github/workflows/end2end.yaml
index 74397a97b..ef3101ec8 100644
--- a/.github/workflows/end2end.yaml
+++ b/.github/workflows/end2end.yaml
@@ -409,7 +409,7 @@ jobs:
           cache-dependency-path: tests/ctst/yarn.lock
       - name: Install ctst test dependencies
         working-directory: tests/ctst
-        run: yarn install
+        run: yarn install --network-concurrency 1 || (yarn cache clean && yarn install --network-concurrency 1)
       - name: Lint ctst tests
         working-directory: tests/ctst
         run: yarn lint