From 4d3bdfbf3c491e8753796e7acad093267a436be5 Mon Sep 17 00:00:00 2001
From: Joe Zuntz <joezuntz@googlemail.com>
Date: Tue, 3 Sep 2024 12:07:43 +0100
Subject: [PATCH] add way to generate min failing image

---
 .github/workflows/build-min-image.yml | 40 +++++++++++++++++++++++++++
 txpipe-min-failing/Dockerfile         | 33 ++++++++++++++++++++++
 2 files changed, 73 insertions(+)
 create mode 100644 .github/workflows/build-min-image.yml
 create mode 100644 txpipe-min-failing/Dockerfile

diff --git a/.github/workflows/build-min-image.yml b/.github/workflows/build-min-image.yml
new file mode 100644
index 0000000..5ca2caf
--- /dev/null
+++ b/.github/workflows/build-min-image.yml
@@ -0,0 +1,40 @@
+name: Build Minimum Failing Image
+
+on: workflow_dispatch
+                
+jobs:
+  build:
+    name: Build Image
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+
+
+      - name: Build & Push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: ./txpipe-min-failing
+          file: ./txpipe-min-failing/Dockerfile
+          push: true
+          tags: ghcr.io/lsstdesc/mpi4py-min-failing
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
diff --git a/txpipe-min-failing/Dockerfile b/txpipe-min-failing/Dockerfile
new file mode 100644
index 0000000..3ebb58e
--- /dev/null
+++ b/txpipe-min-failing/Dockerfile
@@ -0,0 +1,33 @@
+FROM condaforge/mambaforge:24.3.0-0
+
+# This is matching what the NERSC docs use
+ENV MPI_VERSION=4.0.2
+
+# Show some linux version info
+RUN cat /etc/*-release
+
+# Install make
+RUN apt-get update -y \
+    && DEBIAN_FRONTEND="noninteractive" apt-get install -y make  \
+    && apt-get clean all
+
+# We need a C compiler temporarily to install MPICH.
+# Then we install following instructions at 
+# https://docs.nersc.gov/development/containers/shifter/how-to-use/#using-mpi-in-shifter
+RUN apt-get update -y  \
+    && DEBIAN_FRONTEND="noninteractive" apt-get install -y gcc gfortran \
+    && mkdir /opt/mpich \
+    && cd /opt/mpich \
+    && wget http://www.mpich.org/static/downloads/${MPI_VERSION}/mpich-${MPI_VERSION}.tar.gz \
+    && tar xvzf mpich-${MPI_VERSION}.tar.gz \
+    && cd mpich-${MPI_VERSION} \
+    && ./configure --disable-wrapper-rpath  --disable-cxx --with-device=ch3 && make \
+    && make install \
+    && rm -rf /opt/mpich \
+    && apt-get remove --purge -y gcc gfortran
+
+RUN /sbin/ldconfig
+
+# check we are using the conda python
+RUN which python3
+RUN python3 -m pip install mpi4py