add ack-optimized-os building

examples/ack-optimized-aliyunlinux2.json

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+{
+  "variables": {
+    "region": "cn-hangzhou",
+    "image_name": "ack-optimized_image{{timestamp}}",
+    "source_image": "aliyun_2_1903_x64_20G_alibase_20200904.vhd",
+    "instance_type": "ecs.g6.large",
+    "access_key": "{{env `ALICLOUD_ACCESS_KEY`}}",
+    "secret_key": "{{env `ALICLOUD_SECRET_KEY`}}"
+  },
+  "builders": [
+    {
+      "type": "alicloud-ecs",
+      "access_key": "{{user `access_key`}}",
+      "secret_key": "{{user `secret_key`}}",
+      "region": "{{user `region`}}",
+      "image_name": "{{user `image_name`}}",
+      "source_image": "{{user `source_image`}}",
+      "ssh_username": "root",
+      "instance_type": "{{user `instance_type`}}",
+      "skip_image_validation": "true",
+      "io_optimized": "true"
+    }
+  ],
+  "provisioners": [
+    {
+      "type": "shell",
+      "scripts": [
+          "scripts/ack-optimized-os.sh"
+      ]
+    }
+  ]
+}

scripts/ack-optimized-os.sh

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+#!/bin/bash
+
+set -x
+set -e
+
+SRC_DIR=$(dirname $(readlink -e -v $0))
+OS="AliyunOS"
+DOCKER_VERSION="19.03.5"
+KUBE_VERSION="1.18.8-aliyun.1"
+REGION=$(curl --retry 10 -sSL http://100.100.100.200/latest/meta-data/region-id)
+PKG_FILE_SERVER="http://aliacs-k8s-$REGION.oss-$REGION-internal.aliyuncs.com/$BETA_VERSION"
+ACK_OPTIMIZED_OS_BUILD=1
+
+download_pkg() {
+    curl --retry 4 $PKG_FILE_SERVER/public/pkg/run/run-${KUBE_VERSION}.tar.gz -O
+    tar -xvf run-${KUBE_VERSION}.tar.gz
+}
+
+source_file() {
+    pwd_dir=$(pwd)
+    echo $pwd_dir >&2
+    ls >&2
+    ls $SRC_DIR  >&2
+    source pkg/run/$KUBE_VERSION/kubernetes.sh --role source
+}
+
+install_pkg() {
+    public::common::sync_ntpd
+    public::common::install_package
+}
+
+trim_os() {
+    local pkg_list="acl
+aic94xx-firmware
+aliyun-cli
+alsa-firmware
+alsa-lib
+alsa-tools-firmware
+authconfig
+avahi-libs
+bc
+bind-libs-lite
+bind-license
+biosdevname
+btrfs-progs
+cloud
+device-mapper-event
+device-mapper-event-libs
+dmraid
+dmraid-events
+dosfstools
+ed
+file
+firewalld
+firewalld-filesystem
+freetype
+fxload
+GeoIP
+geoipupdate
+gettext
+gettext-libs
+glibc-devel
+groff-base
+hunspell
+hunspell-en
+hunspell-en-GB
+hunspell-en-US
+ivtv-firmware
+iwl1000-firmware
+iwl100-firmware
+iwl105-firmware
+iwl135-firmware
+iwl2000-firmware
+iwl2030-firmware
+iwl3160-firmware
+iwl3945-firmware
+iwl4965-firmware
+iwl5000-firmware
+iwl5150-firmware
+iwl6000-firmware
+iwl6000g2a-firmware
+iwl6000g2b-firmware
+iwl6050-firmware
+iwl7260-firmware
+jansson
+kbd
+kbd-legacy
+kbd-misc
+libaio
+libdrm
+libfastjson
+libmpc
+libpciaccess
+libpng
+libreport-filesystem
+lm_sensors-libs
+lsscsi
+lvm2
+m4
+mailx
+man-db
+mariadb-libs
+mdadm
+microcode_ctl
+mpfr
+NetworkManager
+NetworkManager-libnm
+NetworkManager-team
+NetworkManager-tui
+patch
+perl-Getopt-Long
+plymouth
+plymouth-scripts
+postfix
+python3
+python3-libs
+python3-pip
+python3-setuptools
+python-decorator
+python-IPy
+rng-tools
+rsync
+rsyslog
+sgpio
+slang
+spax
+strace
+sysstat
+tcpdump
+teamd
+vim-common
+vim-enhanced
+vim-filesystem
+wl1000-firmware
+wpa_supplicant
+xfsprogs
+"
+    for pkg in $pkg_list; do
+        yum remove -y $pkg
+    done
+
+    rm -rf /lib/modules/$(uname -r)/kernel/drivers/{media,staging,gpu,usb}
+    rm -rf /boot/*-rescue-* /boot/*3.10.0* /usr/share/{doc,man} /usr/src
+}
+
+pull_image() {
+    systemctl start docker
+    sleep 3
+
+    docker pull  registry-vpc.${REGION}.aliyuncs.com/acs/kube-proxy:v${KUBE_VERSION}
+    docker pull  registry-vpc.${REGION}.aliyuncs.com/acs/pause:3.2
+    docker pull  registry-vpc.${REGION}.aliyuncs.com/acs/coredns:1.6.7
+}
+
+enable_service() {
+    systemctl enable docker
+    systemctl enable kubelet
+}
+
+update_os_release() {
+    echo ACK-Optmized-OS="True"  >> /etc/os-release
+}
+
+cleanup() {
+    rm -rf $SRC_DIR/{addon*,docker*,kubernetes*,pkg,run*}
+}
+
+main() {
+    trap 'cleanup' EXIT
+
+    download_pkg
+    source_file
+
+    trim_os
+    install_pkg
+
+    pull_image
+    enable_service
+    update_os_release
+}
+
+main