[libcxx-commits] [libcxx] [libcxx] Install runner last when building CI containers (PR #148072)

[Aiden Grossman via libcxx-commits]

https://github.com/boomanaiden154 updated https://github.com/llvm/llvm-project/pull/148072

>From 1390e418e9c0723711fa1e2d6b4d90bc6fff45ee Mon Sep 17 00:00:00 2001
From: Aiden Grossman <aidengrossman at google.com>
Date: Thu, 10 Jul 2025 22:53:58 +0000
Subject: [PATCH] =?UTF-8?q?[=F0=9D=98=80=F0=9D=97=BD=F0=9D=97=BF]=20initia?=
 =?UTF-8?q?l=20version?=
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Created using spr 1.3.4
---
 libcxx/utils/ci/Dockerfile         | 17 +++++++++++++++--
 libcxx/utils/ci/docker-compose.yml |  3 ++-
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/libcxx/utils/ci/Dockerfile b/libcxx/utils/ci/Dockerfile
index 0a1985b02807b..316e9c7490991 100644
--- a/libcxx/utils/ci/Dockerfile
+++ b/libcxx/utils/ci/Dockerfile
@@ -312,5 +312,18 @@ CMD /opt/android/container-setup.sh && buildkite-agent start
 #
 FROM builder-base AS actions-builder
 
-WORKDIR /home/runner
-USER runner
+ARG GITHUB_RUNNER_VERSION
+
+RUN useradd gha -u 1001 -m -s /bin/bash
+RUN adduser gha sudo
+RUN echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers
+WORKDIR /home/gha
+USER gha
+
+ENV RUNNER_MANUALLY_TRAP_SIG=1
+ENV ACTIONS_RUNNER_PRINT_LOG_TO_STDOUT=1
+RUN mkdir actions-runner && \
+    cd actions-runner && \
+    curl -O -L https://github.com/actions/runner/releases/download/v$GITHUB_RUNNER_VERSION/actions-runner-linux-x64-$GITHUB_RUNNER_VERSION.tar.gz && \
+    tar xzf ./actions-runner-linux-x64-$GITHUB_RUNNER_VERSION.tar.gz && \
+    rm ./actions-runner-linux-x64-$GITHUB_RUNNER_VERSION.tar.gz
diff --git a/libcxx/utils/ci/docker-compose.yml b/libcxx/utils/ci/docker-compose.yml
index 2189a41555c2f..20536bc32fa65 100644
--- a/libcxx/utils/ci/docker-compose.yml
+++ b/libcxx/utils/ci/docker-compose.yml
@@ -10,7 +10,8 @@ services:
       dockerfile: Dockerfile
       target: actions-builder
       args:
-        BASE_IMAGE: ghcr.io/actions/actions-runner:2.326.0
+        BASE_IMAGE: ubuntu:jammy
+        GITHUB_RUNNER_VERSION: "2.326.0"
         <<: *compiler_versions
 
   android-buildkite-builder: