From ba026e686f9bc5ada89aef6bfd5fb416fa0c5101 Mon Sep 17 00:00:00 2001
From: Vitor Bandeira <vvbandeira@precisioninno.com>
Date: Tue, 28 Jul 2026 13:16:00 -0300
Subject: [PATCH] ci: drop centos7 from workflow

Signed-off-by: Vitor Bandeira <vvbandeira@precisioninno.com>
---
 .github/workflows/ci.yml |  30 -----------
 Dockerfile.centos7       | 111 ---------------------------------------
 2 files changed, 141 deletions(-)
 delete mode 100644 Dockerfile.centos7

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4e3d1df9..a1673fd5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -65,36 +65,6 @@ jobs:
           path: |
             test/results/*
 
-  # CentOS 7 Docker: old platform still common in EDA environments.
-  linux-centos:
-    if: github.repository_owner != 'The-OpenROAD-Project-private'
-    runs-on: ubuntu-latest
-    timeout-minutes: 30
-    steps:
-      - name: Checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
-        with:
-          submodules: true
-
-      - name: Build image
-        run: docker build -f Dockerfile.centos7 --tag sta-centos7 .
-
-      - name: Test in container
-        run: |
-          mkdir -p test/results
-          docker run --rm \
-            -v "$PWD/test/results:/OpenSTA/test/results" \
-            --entrypoint /bin/bash sta-centos7 \
-            -c "cd /OpenSTA/test && ./regression || (cat results/diffs && exit 1)"
-
-      - name: Upload Test Result
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
-        if: ${{ !cancelled() }}
-        with:
-          name: result-centos7
-          path: |
-            test/results/*
-
   # Native macOS coverage via Brewfile.
   macos:
     if: github.repository_owner != 'The-OpenROAD-Project-private'
diff --git a/Dockerfile.centos7 b/Dockerfile.centos7
deleted file mode 100644
index 809fbb7b..00000000
--- a/Dockerfile.centos7
+++ /dev/null
@@ -1,111 +0,0 @@
-FROM centos:centos7 AS base-dependencies
-LABEL author="James Cherry"
-LABEL maintainer="James Cherry <cherry@parallaxsw.com>"
-
-# Install dev and runtime dependencies (use vault repos since mirror repos are discontinued)
-RUN sed -i s/mirror.centos.org/vault.centos.org/g /etc/yum.repos.d/*.repo \
-    && sed -i s/^#.*baseurl=http/baseurl=http/g /etc/yum.repos.d/*.repo \
-    && sed -i s/^mirrorlist=http/#mirrorlist=http/g /etc/yum.repos.d/*.repo \
-    && yum update -y \
-    && yum install -y centos-release-scl epel-release
-RUN sed -i s/mirror.centos.org/vault.centos.org/g /etc/yum.repos.d/*.repo \
-    && sed -i s/^#.*baseurl=http/baseurl=http/g /etc/yum.repos.d/*.repo \
-    && sed -i s/^mirrorlist=http/#mirrorlist=http/g /etc/yum.repos.d/*.repo \ 
-    && yum install -y devtoolset-11 git wget cmake3 make eigen3-devel tcl swig3 flex zlib-devel valgrind \
-    && yum clean -y all
-
-RUN ln -sf /usr/bin/cmake3 /usr/bin/cmake && \
-    ln -sf /usr/bin/ctest3 /usr/bin/ctest
-
-# Download Bison
-RUN wget https://mirrors.kernel.org/gnu/bison/bison-3.8.2.tar.gz && \
-    tar -xvf bison-3.8.2.tar.gz && \
-    rm bison-3.8.2.tar.gz
-
-# Build Bison
-RUN source /opt/rh/devtoolset-11/enable && \
-    cd bison-3.8.2 && \
-    ./configure && \
-    make -j`nproc` && \
-    make install
-
-# Download CUDD
-RUN wget https://raw.githubusercontent.com/davidkebo/cudd/main/cudd_versions/cudd-3.0.0.tar.gz && \
-    tar -xvf cudd-3.0.0.tar.gz && \
-    rm cudd-3.0.0.tar.gz
-
-# Build CUDD
-RUN source /opt/rh/devtoolset-11/enable && \
-    cd cudd-3.0.0 && \
-    mkdir ../cudd && \
-    ./configure && \
-    make -j`nproc` && \
-    make install
-
-# Download TCL
-RUN wget https://github.com/tcltk/tcl/archive/refs/tags/core-8-6-16.tar.gz -O tcl8.6.16-src.tar.gz && \
-    mkdir -p tcl8.6.16 && \
-    tar -xvf tcl8.6.16-src.tar.gz -C tcl8.6.16 --strip-components=1 && \
-    rm tcl8.6.16-src.tar.gz
-
-# Build TCL
-RUN source /opt/rh/devtoolset-11/enable && \
-    cd tcl8.6.16 && \
-    ./unix/configure && \
-    make -j`nproc` && \
-    make install
-
-# Download and build GTest
-RUN <<EOF
-set -e
-wget https://github.com/google/googletest/archive/refs/tags/v1.14.0.tar.gz
-tar -xvf v1.14.0.tar.gz
-source /opt/rh/devtoolset-11/enable
-cd googletest-1.14.0
-mkdir build && cd build
-cmake ..
-make -j$(nproc)
-make install
-cd ../..
-rm -rf v1.14.0.tar.gz googletest-1.14.0
-EOF
-
-# Download and build fmt
-# Ensure the Vault redirect is applied to everything including new installs
-RUN sed -i s/mirror.centos.org/vault.centos.org/g /etc/yum.repos.d/*.repo && \
-    sed -i s/^#.*baseurl=http/baseurl=http/g /etc/yum.repos.d/*.repo && \
-    sed -i s/^mirrorlist=http/#mirrorlist=http/g /etc/yum.repos.d/*.repo && \
-    yum install -y ca-certificates git && \
-    update-ca-trust force-enable
-# clone fmt compatible version (10.2.1)
-RUN git config --global http.sslVerify false && \
-    git clone --depth 1 --branch 10.2.1 https://github.com/fmtlib/fmt.git /tmp/fmt
-RUN source /opt/rh/devtoolset-11/enable && \
-    cd /tmp/fmt && \
-    mkdir build && cd build && \
-    cmake3 .. \
-    -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
-    -DFMT_TEST=OFF \
-    -DCMAKE_BUILD_TYPE=Release \
-    -DFMT_DOC=OFF && \
-    make -j$(nproc) && \
-    make install
-RUN rm -rf /tmp/fmt
-
-################################################################
-
-FROM base-dependencies AS builder
-
-COPY . /OpenSTA
-WORKDIR /OpenSTA
-
-# Build
-RUN rm -rf build && mkdir build
-RUN source /opt/rh/devtoolset-11/enable && \
-    cd build && \
-    cmake .. && \
-    # LTO fails with -j
-    make
-
-# Run sta on entry
-ENTRYPOINT ["/OpenSTA/build/sta"]