google gcr.io、k8s.gcr.io 国内镜像
google gcr.io、k8s.gcr.io 国内镜像
·
- 1、首先添加docker官方的国内镜像
sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://registry.docker-cn.co"]
}
EOF
- 2、gcr.io镜像
根据开源项目anjia0532/gcr.io_mirror,作者将gcr.io相关镜像pull下来,然后push到docker官方仓库,相关转换语法如下:
语法
gcr.io/namespace/image_name:image_tag
# 等价于
anjia0532/namespace.image_name:image_tag
# 特别的
k8s.gcr.io/{image}/{tag} <==> gcr.io/google-containers/{image}/{tag} <==> anjia0532/google-containers.{image}/{tag}
批量转换
# replace gcr.io/google-containers/federation-controller-manager-arm64:v1.3.1-beta.1 to real image
# this will convert gcr.io/google-containers/federation-controller-manager-arm64:v1.3.1-beta.1
# to anjia0532/google-containers.federation-controller-manager-arm64:v1.3.1-beta.1 and pull it
# k8s.gcr.io/{image}/{tag} <==> gcr.io/google-containers/{image}/{tag} <==> anjia0532/google-containers.{image}/{tag}
images=$(cat img.txt)
#or
#images=$(cat <<EOF
# gcr.io/google-containers/federation-controller-manager-arm64:v1.3.1-beta.1
# gcr.io/google-containers/federation-controller-manager-arm64:v1.3.1-beta.1
# gcr.io/google-containers/federation-controller-manager-arm64:v1.3.1-beta.1
#EOF
#)
eval $(echo ${images}|
sed 's/k8s\.gcr\.io/anjia0532\/google-containers/g;s/gcr\.io/anjia0532/g;s/\//\./g;s/ /\n/g;s/anjia0532\./anjia0532\//g' |
uniq |
awk '{print "docker pull "$1";"}'
)
# this code will retag all of anjia0532's image from local e.g. anjia0532/google-containers.federation-controller-manager-arm64:v1.3.1-beta.1
# to gcr.io/google-containers/federation-controller-manager-arm64:v1.3.1-beta.1
# k8s.gcr.io/{image}/{tag} <==> gcr.io/google-containers/{image}/{tag} <==> anjia0532/google-containers.{image}/{tag}
for img in $(docker images --format "{{.Repository}}:{{.Tag}}"| grep "anjia0532"); do
n=$(echo ${img}| awk -F'[/.:]' '{printf "gcr.io/%s",$2}')
image=$(echo ${img}| awk -F'[/.:]' '{printf "/%s",$3}')
tag=$(echo ${img}| awk -F'[:]' '{printf ":%s",$2}')
docker tag $img "${n}${image}${tag}"
[[ ${n} == "gcr.io/google-containers" ]] && docker tag $img "k8s.gcr.io${image}${tag}"
done
- 3、 pull-google-container 工具脚本
K8S的exapmle里的yaml默认是k8s.gcr.io的镜像,为了方便运行我们可以预先拉取相关镜像:
vim pull-google.sh:
image=$1
echo $1
img=`echo $image | sed 's/k8s\.gcr\.io/anjia0532\/google-containers/g;s/gcr\.io/anjia0532/g;s/\//\./g;s/ /\n/g;s/_/-/g;s/anjia0532\./anjia0532\//g' | uniq | awk '{print ""$1""}'`
echo "docker pull $img"
docker pull $img
echo "docker tag $img $image"
docker tag $img $image
~
然后放到/usr/local/bin
chmod +x pull-google.sh && cp pull-google.sh /usr/local/bin/pull-google-container
就可以愉快的使用pull-google-container 命令了
pull-google-container gcr.io/google-samples/gb-frontend:v4
gcr.io/google-samples/gb-frontend:v4
docker pull anjia0532/google-samples.gb-frontend:v4
v4: Pulling from anjia0532/google-samples.gb-frontend
Digest: sha256:aaa5b327ef3b4cb705513ab674fa40df66981616950c7de4912a621f9ee03dd4
Status: Image is up to date for anjia0532/google-samples.gb-frontend:v4
docker tag anjia0532/google-samples.gb-frontend:v4 gcr.io/google-samples/gb-frontend:v4
- 4、替换已有的yaml
除了预先拉取镜像,我们还可以将k8s.gcr.io 替换为可执行镜像
为了方便替换,我们编写一个repair_yaml 脚本:
vim /usr/local/bin/repair_yaml
cp $1 "$1.bak"
cat $1.bak | sed 's/k8s\.gcr\.io\/\(.*\)\//anjia0532\/google-containers.\1./g;s/gcr\.io\/\(.*\)\//anjia0532\/\1./g;s/google_/google-/g;' > $1
rm -f "$1.bak"
保存退出,然后
chmod +x /usr/local/bin/repair_yaml
效果:
$ repair_yaml frontend-deployment.yaml
$ cat frontend-deployment.yaml
apiVersion: apps/v1 # for k8s versions before 1.9.0 use apps/v1beta2 and before 1.8.0 use extensions/v1beta1
kind: Deployment
metadata:
name: frontend
spec:
selector:
matchLabels:
app: guestbook
tier: frontend
replicas: 3
template:
metadata:
labels:
app: guestbook
tier: frontend
spec:
containers:
- name: php-redis
image: anjia0532/google-samples.gb-frontend:v4
resources:
requests:
cpu: 100m
memory: 100Mi
env:
- name: GET_HOSTS_FROM
value: dns
# If your cluster config does not include a dns service, then to
# instead access environment variables to find service host
# info, comment out the 'value: dns' line above, and uncomment the
# line below:
# value: env
ports:
- containerPort: 80
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