當需要安裝Rancher的主機只有內網,而沒有外網通信的時候,Rancher 的安裝就成爲一大難題,這裏記錄下Rancher離線安裝的步驟,讓你的主機沒有互聯網也能安裝Rancher。
1、首先找到 Rancher 相應版本 的 rancher-images.txt;
https://github.com/rancher/rancher/releases
2、通過RKE生成鏡像清單
./rke config --system-images -all >> ./rancher-images.txt
rke 鏈接:https://pan.baidu.com/s/18uP0FREHXiAkw1CsX33PNw 提取碼:2ih2
3、解析模板以獲取鏡像詳細信息
./linux-amd64/helm template ./cert-manager-v0.6.7.tgz | grep -oP '(?<=image: ").*(?=")' >> ./rancher-images.txt
helm 鏈接:https://pan.baidu.com/s/1r1TBpTlTdOTUrwF2t8I2Gw 提取碼:0is3
4、對鏡像列表進行排序和去重,以去除重複的鏡像
sort -u rancher-images.txt -o rancher-images.txt
5、複製腳本文件
rancher-save-images.sh
#!/bin/bash
# 定義日誌
workdir='../pwd'
log_file=${workdir}/sync_images_$(date +"%Y-%m-%d").log
logger()
{
log=$1
cur_time='['$(date +"%Y-%m-%d %H:%M:%S")']'
echo ${cur_time} ${log} | tee -a ${log_file}
}
list="../rancher-images.txt"
#images="rancher-images.tar.gz"
POSITIONAL=()
while [[ $# -gt 0 ]]; do
key="$1"
case $key in
-i|--images)
images="$2"
shift # past argument
shift # past value
;;
-l|--image-list)
list="$2"
shift # past argument
shift # past value
;;
-h|--help)
help="true"
shift
;;
esac
done
usage () {
echo "USAGE: $0 [--image-list rancher-images.txt] [--images rancher-images.tar.gz]"
echo " [-l|--images-list path] text file with list of images. 1 per line."
echo " [-l|--images path] tar.gz generated by docker save."
echo " [-h|--help] Usage message"
}
if [[ $help ]]; then
usage
exit 0
fi
set -e -x
mkdir -p rancher-images-$(date +"%Y-%m-%d")
cd rancher-images-$(date +"%Y-%m-%d")
for i in $(cat ${list});
do
docker pull ${i}
if [ $? -ne 0 ]; then
logger "${i} pull failed."
else
logger "${i} pull successfully."
fi
docker save ${i} | gzip > $(echo $i | sed "s#/#-#g; s#:#-#g").tgz
if [ $? -ne 0 ]; then
logger "${i} save failed."
else
logger "${i} save successfully."
fi
done
rancher-load-images.sh
#!/bin/bash
# 定義日誌
workdir='../pwd'
log_file=${workdir}/sync_images_$(date +"%Y-%m-%d").log
logger()
{
log=$1
cur_time='['$(date +"%Y-%m-%d %H:%M:%S")']'
echo ${cur_time} ${log} | tee -a ${log_file}
}
POSITIONAL=()
while [[ $# -gt 0 ]]; do
key="$1"
case $key in
-i|--images-path)
images_path="$2"
shift # past argument
shift # past value
;;
-l|--image-list)
list="$2"
shift # past argument
shift # past value
;;
-h|--help)
help="true"
shift
;;
esac
done
usage () {
echo "USAGE: $0 [--image-list rancher-images.txt] [--images rancher-images.tar.gz]"
echo " [-l|--images-list path] text file with list of images. 1 per line."
echo " [-l|--images path] tar.gz generated by docker save."
echo " [-h|--help] Usage message"
}
if [[ $help ]]; then
usage
exit 0
fi
set -e -x
# 鏡像壓縮文件列表
images=$(ls $images_path | grep ".tgz")
cd $images_path
# 導入鏡像
docker_load ()
{
for imgs in $(echo ${images});
do
gunzip -c ${imgs} | docker load
if [ $? -ne 0 ]; then
logger "${imgs} load failed."
else
logger "${imgs} load successfully."
fi
done
}
docker_load
rancher-push-images.sh
#!/bin/bash
## 鏡像上傳說明
# 需要先在鏡像倉庫中創建 rancher 項目
# 根據實際情況更改以下私有倉庫地址
# 定義日誌
workdir='../pwd'
log_file=${workdir}/sync_images_$(date +"%Y-%m-%d").log
logger()
{
log=$1
cur_time='['$(date +"%Y-%m-%d %H:%M:%S")']'
echo ${cur_time} ${log} | tee -a ${log_file}
}
images_hub() {
while true; do
read -p "輸入鏡像倉庫地址(不加http/https): " registry
read -p "輸入鏡像倉庫用戶名: " registry_user
read -p "輸入鏡像倉庫用戶密碼: " registry_password
echo "您設置的倉庫地址爲: ${registry},用戶名: ${registry_user},密碼: xxx"
read -p "是否確認(Y/N): " confirm
if [ $confirm != Y ] && [ $confirm != y ] && [ $confirm == '' ]; then
echo "輸入不能爲空,重新輸入"
else
break
fi
done
}
images_hub
echo "鏡像倉庫 $(docker login -u ${registry_user} -p ${registry_password} ${registry})"
images=$(docker images -a | grep -v TAG | awk '{print $1 ":" $2}')
namespace=rancher
docker_push() {
for imgs in $(echo ${images}); do
n=$(echo ${imgs} | awk -F"/" '{print NF-1}')
#如果鏡像名中沒有/,那麼此鏡像一定是library倉庫的鏡像;
if [ ${n} -eq 0 ]; then
img_tag=${imgs}
#namespace=rancher
#重命名鏡像
docker tag ${imgs} ${registry}/${namespace}/${img_tag}
#刪除原始鏡像
#docker rmi ${imgs}
#上傳鏡像
docker push ${registry}/${namespace}/${img_tag}
#如果鏡像名中有一個/,那麼/左側爲項目名,右側爲鏡像名和tag
elif [ ${n} -eq 1 ]; then
img_tag=$(echo ${imgs} | awk -F"/" '{print $2}')
#namespace=$(echo ${imgs} | awk -F"/" '{print $1}')
#重命名鏡像
docker tag ${imgs} ${registry}/${namespace}/${img_tag}
#刪除舊鏡像
#docker rmi ${imgs}
#上傳鏡像
docker push ${registry}/${namespace}/${img_tag}
#如果鏡像名中有兩個/,
elif [ ${n} -eq 2 ]; then
img_tag=$(echo ${imgs} | awk -F"/" '{print $3}')
#namespace=$(echo ${imgs} | awk -F"/" '{print $2}')
#重命名鏡像
docker tag ${imgs} ${registry}/${namespace}/${img_tag}
#刪除舊鏡像
#docker rmi ${imgs}
#上傳鏡像
docker push ${registry}/${namespace}/${img_tag}
else
#標準鏡像爲四層結構,即:倉庫地址/項目名/鏡像名:tag,如不符合此標準,即爲非有效鏡像。
echo "No available images"
fi
done
}
docker_push
6、rancher-save-images.sh 賦權限並執行 備份鏡像
chmod +x rancher-save-images.sh
./rancher-save-images.sh
7、離線安裝Rancher鏡像文件,rancher-load-images.sh
chmod +x rancher-load-images.sh
./rancher-load-images.sh --images-path rancher-images-2019-06-07/
8、此外,還可以將鏡像上傳至私有鏡像倉庫
chmod +x rancher-push-images.sh
./rancher-push-images.sh