- #!/usr/bin/env bash
- #
- # cat /home/mkimage-yum.sh
- # Create a base CentOS Docker image.
- #
- # This script is useful on systems with yum installed (e.g., building
- # a CentOS image on CentOS). See contrib/mkimage-rinse.sh for a way
- # to build CentOS images on other systems.
- usage() {
- cat <<EOOPTS
- $(basename $0) [OPTIONS] <name>
- OPTIONS:
- -p "<packages>" The list of packages to install in the container.
- The default is blank.
- -g "<groups>" The groups of packages to install in the container.
- The default is "Core".
- -y <yumconf> The path to the yum config to install packages from. The
- default is /etc/yum.conf for Centos/RHEL and /etc/dnf/dnf.conf for Fedora
- EOOPTS
- exit 1
- }
- # option defaults
- yum_config=/etc/yum.conf
- if [ -f /etc/dnf/dnf.conf ] && command -v dnf &> /dev/null; then
- yum_config=/etc/dnf/dnf.conf
- alias yum=dnf
- fi
- install_groups="Core"
- while getopts ":y:p:g:h" opt; do
- case $opt in
- y)
- yum_config=$OPTARG
- ;;
- h)
- usage
- ;;
- p)
- install_packages="$OPTARG"
- ;;
- g)
- install_groups="$OPTARG"
- ;;
- \\?)
- echo "Invalid option: -$OPTARG"
- usage
- ;;
- esac
- done
- shift $((OPTIND - 1))
- name=$1
- if [[ -z $name ]]; then
- usage
- fi
- target=$(mktemp -d --tmpdir $(basename $0).XXXXXX)
- set -x
- mkdir -m 755 "$target"/dev
- mknod -m 600 "$target"/dev/console c 5 1
- mknod -m 600 "$target"/dev/initctl p
- mknod -m 666 "$target"/dev/full c 1 7
- mknod -m 666 "$target"/dev/null c 1 3
- mknod -m 666 "$target"/dev/ptmx c 5 2
- mknod -m 666 "$target"/dev/random c 1 8
- mknod -m 666 "$target"/dev/tty c 5 0
- mknod -m 666 "$target"/dev/tty0 c 4 0
- mknod -m 666 "$target"/dev/urandom c 1 9
- mknod -m 666 "$target"/dev/zero c 1 5
- # amazon linux yum will fail without vars set
- if [ -d /etc/yum/vars ]; then
- mkdir -p -m 755 "$target"/etc/yum
- cp -a /etc/yum/vars "$target"/etc/yum/
- fi
- if [[ -n "$install_groups" ]];
- then
- yum -c "$yum_config" --installroot="$target" --releasever=/ --setopt=tsflags=nodocs \\
- --setopt=group_package_types=mandatory -y groupinstall $install_groups
- fi
- if [[ -n "$install_packages" ]];
- then
- yum -c "$yum_config" --installroot="$target" --releasever=/ --setopt=tsflags=nodocs \\
- --setopt=group_package_types=mandatory -y install $install_packages
- fi
- yum -c "$yum_config" --installroot="$target" -y clean all
- cat > "$target"/etc/sysconfig/network <<EOF
- NETWORKING=yes
- HOSTNAME=localhost.localdomain
- EOF
- # effectively: febootstrap-minimize --keep-zoneinfo --keep-rpmdb --keep-services "$target".
- # locales
- rm -rf "$target"/usr/{{lib,share}/locale,{lib,lib64}/gconv,bin/localedef,sbin/build-locale-archive}
- # docs and man pages
- rm -rf "$target"/usr/share/{man,doc,info,gnome/help}
- # cracklib
- rm -rf "$target"/usr/share/cracklib
- # i18n
- rm -rf "$target"/usr/share/i18n
- # yum cache
- rm -rf "$target"/var/cache/yum
- mkdir -p --mode=0755 "$target"/var/cache/yum
- # sln
- rm -rf "$target"/sbin/sln
- # ldconfig
- rm -rf "$target"/etc/ld.so.cache "$target"/var/cache/ldconfig
- mkdir -p --mode=0755 "$target"/var/cache/ldconfig
- version=
- for file in "$target"/etc/{redhat,system}-release
- do
- if [ -r "$file" ]; then
- version="$(sed 's/^[^0-9\\]*\\([0-9.]\\+\\).*$/\\1/' "$file")"
- break
- fi
- done
- if [ -z "$version" ]; then
- echo >&2 "warning: cannot autodetect OS version, using '$name' as tag"
- version=$name
- fi
- tar --numeric-owner -c -C "$target" . | docker import - $name:$version
- docker run -i -t --rm $name:$version /bin/bash -c 'echo success'
- rm -rf "$target"
- //该片段来自于http://www.codesnippet.cn/detail/2111201615151.html
来源: http://www.codesnippet.cn/detail/2111201615151.html