🧪 Pre-build armv7l images for building wheels (clean attempt)

.github/workflows/build-manylinux-container-images.yml

@@ -38,17 +38,15 @@ jobs:
         - ARCH: ppc64le
         # Build containers for s390x
         - ARCH: s390x
-        # There are no base containers for these archs
-        # at https://quay.io/organization/pypa.
-        # Build containers for armv7l (ARM v7)
-        # - ARCH: armv7l
-        #   QEMU_ARCH: arm/v7
-        # Build containers for ppc64
-        # - ARCH: ppc64
         YEAR:
         - _2_24
         - _2_28
         - _2_34
+        include:
+        - IMAGE:
+            ARCH: armv7l
+            HOST_OS: ubuntu-24.04-arm
+          YEAR: _2_31  # There are no base images prior to 2.31 for this arch
 
     env:
       LIBSSH_VERSION: 0.11.1
@@ -78,7 +76,7 @@ jobs:
         Set up QEMU ${{ env.QEMU_ARCH }} arch emulation
         with Podman
       if: >-
-        !contains(fromJSON('["aarch64", "amd64"]'), env.QEMU_ARCH)
+        !contains(fromJSON('["aarch64", "amd64", "armv7l"]'), env.QEMU_ARCH)
       run: >
         sudo podman run
         --rm --privileged

build-scripts/manylinux-container-image/install_libssh.sh

@@ -104,6 +104,7 @@ cmake "${LIB_CLONE_DIR}" \
     -DCLIENT_TESTING=OFF \
     -DSERVER_TESTING=OFF \
     -DUNIT_TESTING=OFF \
+    -DWITH_EXAMPLES=OFF \
     -DWITH_GSSAPI=ON \
     -DWITH_SERVER=OFF \
     -DWITH_PCAP=OFF \

build-scripts/manylinux-container-image/install_openssl.sh

@@ -21,6 +21,11 @@ BUILD_FLAGS="$OPENSSL_BUILD_FLAGS"
 if [[ "$1" =~ '^manylinux1_.*$' ]]; then
   PATH=/opt/perl/bin:$PATH
 fi
+# Can't use `$(uname -m) = "armv7l"` because that returns what kernel we're
+# using, and we build for armv7l with an ARM64 host.
+if [ "$(readelf -h /proc/self/exe | grep -o 'Machine:.* ARM')" ]; then
+    BUILD_FLAGS="$OPENSSL_BUILD_FLAGS_ARMV7L"
+fi
 if [ "$(readelf -h /proc/self/exe | grep -o 'Machine:.* S/390')" ]; then
     BUILD_FLAGS="$OPENSSL_BUILD_FLAGS_S390X"
     export CFLAGS="$CFLAGS -march=z10"

build-scripts/manylinux-container-image/openssl-version.sh

@@ -3,5 +3,6 @@ export OPENSSL_SHA256="344d0a79f1a9b08029b0744e2cc401a43f9c90acd1044d09a530b4885
 # We need a base set of flags because on Windows using MSVC
 # enable-ec_nistp_64_gcc_128 doesn't work since there's no 128-bit type
 export OPENSSL_BUILD_FLAGS_WINDOWS="no-ssl3 no-ssl3-method no-zlib no-shared no-module no-comp no-dynamic-engine no-apps no-docs no-sm2-precomp no-atexit"
+export OPENSSL_BUILD_FLAGS_ARMV7L="linux-armv4 ${OPENSSL_BUILD_FLAGS_WINDOWS}"
 export OPENSSL_BUILD_FLAGS_S390X="${OPENSSL_BUILD_FLAGS_WINDOWS}"
 export OPENSSL_BUILD_FLAGS="${OPENSSL_BUILD_FLAGS_WINDOWS} enable-ec_nistp_64_gcc_128"

docs/changelog-fragments/740.contrib.rst

@@ -0,0 +1,3 @@
+The CI infrastructure now produces ``manylinux_2_31_armv7l`` base images
+with ``libssh`` and ``openssl`` pre-built -- by :user:`Jakuje` and
+:user:`webknjaz`.