diff --git a/live-build/auto/build b/live-build/auto/build index 4939fae4..f1b7bc15 100755 --- a/live-build/auto/build +++ b/live-build/auto/build @@ -441,6 +441,10 @@ serial: $BUILDSTAMP EOF fi + if [ "$PROJECT" = "ubuntu-oci" ]; then + configure_oci chroot + fi + configure_network_manager echo "===== Checking size of /usr/share/doc =====" diff --git a/live-build/functions b/live-build/functions index 364bf26b..00daa00c 100644 --- a/live-build/functions +++ b/live-build/functions @@ -868,6 +868,62 @@ EOF fi } +configure_oci() { + # configure a chroot to be a OCI/docker container + # theses changes are taken from the current Dockerfile modifications done + # at https://github.com/tianon/docker-brew-ubuntu-core/blob/master/update.sh + + local chroot=$1 + + echo "==== Configuring OCI ====" + + # https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap#L40-L48 + echo '#!/bin/sh' > ${chroot}/usr/sbin/policy-rc.d + echo 'exit 101' >> ${chroot}/usr/sbin/policy-rc.d + Chroot ${chroot} "chmod +x /usr/sbin/policy-rc.d" + + # https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap#L54-L56 + Chroot ${chroot} "dpkg-divert --local --rename --add /sbin/initctl" + cp -a ${chroot}/usr/sbin/policy-rc.d ${chroot}/sbin/initctl + sed -i 's/^exit.*/exit 0/' ${chroot}/sbin/initctl + + # https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap#L71-L78 + echo 'force-unsafe-io' > ${chroot}/etc/dpkg/dpkg.cfg.d/docker-apt-speedup + + # https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap#L85-L105 + echo 'DPkg::Post-Invoke { "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true"; };' > ${chroot}/etc/apt/apt.conf.d/docker-clean + + echo 'APT::Update::Post-Invoke { "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true"; };' >> ${chroot}/etc/apt/apt.conf.d/docker-clean + + echo 'Dir::Cache::pkgcache ""; Dir::Cache::srcpkgcache "";' >> ${chroot}/etc/apt/apt.conf.d/docker-clean + + # https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap#L109-L115 + echo 'Acquire::Languages "none";' > ${chroot}/etc/apt/apt.conf.d/docker-no-languages + + # https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap#L118-L130 + echo 'Acquire::GzipIndexes "true"; Acquire::CompressionTypes::Order:: "gz";' > ${chroot}/etc/apt/apt.conf.d/docker-gzip-indexes + + # https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap#L134-L151 + echo 'Apt::AutoRemove::SuggestsImportant "false";' > ${chroot}/etc/apt/apt.conf.d/docker-autoremove-suggests + + # delete all the apt list files since they're big and get stale quickly + rm -rf ${chroot}/var/lib/apt/lists/* + + # verify that the APT lists files do not exist + Chroot chroot "apt-get indextargets" > indextargets.out + [ ! -s indextargets.out ] + rm indextargets.out + # (see https://bugs.launchpad.net/cloud-images/+bug/1699913) + + # make systemd-detect-virt return "docker" + # See: https://github.com/systemd/systemd/blob/aa0c34279ee40bce2f9681b496922dedbadfca19/src/basic/virt.c#L434 + mkdir -p ${chroot}/run/systemd + echo 'docker' > ${chroot}/run/systemd/container + + rm -rf ${chroot}/var/cache/apt/*.bin + echo "==== Configuring OCI done ====" +} + configure_network_manager() { # If the image pre-installs network-manager, let it manage all devices by # default. Installing NM on an existing system only manages wifi and wwan via