one more time

Author: reutermj

.github/workflows/build_gcc.yml

@@ -10,7 +10,6 @@ env:
     OUTPUT_DIR: /tmp/toolchain/output
     WORK_DIR: /tmp/toolchain/work
     BUILD_GCC_SH: ./infra/gcc/build_gcc.sh
-    SUDO: "sudo"
 
     GCC_VERSION: 15
     LIBC: gnu

infra/gcc/Dockerfile

@@ -1,11 +1,26 @@
 FROM ubuntu:latest
 
+# =================
+# || Create User ||
+# =================
+# ct-ng cant build as root; it needs to run as a user.
+# as well, github actions need sudo to install ct-ng after building and to do apt install
+RUN apt update && DEBIAN_FRONTEND=noninteractive apt install -y sudo
+
+RUN useradd -m -s /bin/bash builder && \
+    usermod -aG sudo builder
+RUN echo "builder ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
+USER builder
+WORKDIR /home/builder
+
+# =======================
+# || Environment Setup ||
+# =======================
 ENV CT_NG_SRC_DIR="/tmp/crosstool-ng"
 ENV ARTIFACT_DIR="/tmp/toolchain/artifacts"
 ENV OUTPUT_DIR="/tmp/toolchain/output"
 ENV WORK_DIR="/tmp/toolchain/work"
 ENV BUILD_GCC_SH="/tmp/build_gcc.sh"
-ENV SUDO=""
 
 RUN mkdir -p $CT_NG_SRC_DIR
 RUN mkdir -p $ARTIFACT_DIR
@@ -19,6 +34,9 @@ ARG LIBC=gnu
 ARG LIBC_VERSION=2.34
 ARG REBUILD_ID=1
 
+# =====================
+# || Build Toolchain ||
+# =====================
 RUN $BUILD_GCC_SH install_dependencies
 RUN $BUILD_GCC_SH build_crosstool_ng
 RUN $BUILD_GCC_SH configure_toolchain

infra/gcc/build_gcc.sh

@@ -13,8 +13,8 @@ ensure_environment_variables() {
 }
 
 install_dependencies() {
-    $SUDO apt update
-    DEBIAN_FRONTEND=noninteractive $SUDO apt install -y \
+    sudo apt update
+    DEBIAN_FRONTEND=noninteractive sudo apt install -y \
         build-essential \
         autoconf \
         flex \
@@ -41,7 +41,7 @@ build_crosstool_ng() {
     ./bootstrap
     ./configure
     make
-    make install
+    sudo make install
     popd
 }