目录
使用Local Directory作为build context
使用Standard Input作为build context
把所有与kaniko相关的全部放在kaniko这个ns下。
kubectl create ns kaniko
gcr上的镜像不好拉,我已经放在dockerhub上了。这些镜像我自己就在用。
可以在自己的镜像仓库生成这些镜像的(https://blog.csdn.net/u010918487/article/details/108084651)
(在dockerhub上看到明明只有20+M,不知道为啥pull下来有70+M)
// latest
docker pull xkfen/kaniko:v1.0.0
// debug
docker pull xkfen/kaniko:debug
// warmer
docker pull xkfen/kaniko:warmer
// docker-email可选,可以不要
kubectl create secret docker-registry <secret名称> --docker-server=<镜像仓库地址> --docker-username=<私有镜像仓库登录的用户名> --docker-password=<私有镜像仓库登录的密码> --docker-email=<私有镜像仓库的email> -n kaniko
如:
kubectl create secret docker-registry regcred --docker-server=http://harbor.it.cn/harbor --docker-username=admin --docker-password=Harbor12345 -n kaniko
[root@m1 demo1]# kc get secret regcred -n kaniko -o yaml
apiVersion: v1
data:
.dockerconfigjson: eyJhdXRocyI6eyJodHRwOi8vaGFyYm9yLxxxxxxxxx
kind: Secret
metadata:
creationTimestamp: "2020-08-26T12:07:58Z"
name: regcred
namespace: kaniko
resourceVersion: "38285497"
selfLink: /api/v1/namespaces/kaniko/secrets/regcred
uid: 453c3148-57d9-4ca6-acae-8edc68a46ede
type: kubernetes.io/dockerconfigjson
[root@m1 demo1]# echo xxxxx | base64 -d
私有镜像仓库不需要账号密码的,就不用创建这个secret。
在后面的pod.yaml中也不需要挂载kaniko-secret。
1. 由于使用的是Local Directory,因此pod运行的节点一定要有Local Directory。
比如我的Local Directory在m1.env.lab.io节点,因此kaniko pod运行的时候也要指定在这个节点
2. 如果私有仓库地址不是https的,是http的,那么就要设置insecure参数为true,这个参数默认为false的。设置为true代表使用http把镜像push到镜像仓库。(Push to insecure registry using plain HTTP)
pod.yaml
[root@m1 demo1]# hostname
m1.env.lab.io
[root@m1 demo1]# pwd
/root/kaniko/demo1
[root@m1 demo1]# cat Dockerfile
FROM ubuntu
ENTRYPOINT ["/bin/bash", "-c", "echo hello"]
[root@m1 demo1]# cat pod.yaml
apiVersion: v1
kind: Pod
metadata:
name: kaniko-harbor
namespace: kaniko
spec:
nodeName: m1.env.lab.io
containers:
- name: kaniko
image: xkfen/kaniko:v1.0.0
args: ["--verbosity=trace",
"--log-format=color",
"--dockerfile=Dockerfile",
"--context=dir:///workspace/",
"--destination=harbor.it.cn/it/buildpack-linux:v2.0-ubuntu-test2.1",
"--skip-tls-verify=true",
"--insecure=true"]
volumeMounts:
- name: dockerfile-storage
mountPath: /workspace/
- name: kaniko-secret
mountPath: /kaniko/.docker
restartPolicy: Never
volumes:
- name: kaniko-secret
secret:
secretName: regcred
items:
- key: .dockerconfigjson
path: config.json
- name: dockerfile-storage
hostPath:
path: /root/kaniko/demo1
pod.yaml
apiVersion: v1
kind: Pod
metadata:
name: kaniko-pvc
namespace: kaniko
spec:
nodeName: m1.env.lab.io
containers:
- name: kaniko
image: xkfen/kaniko:v1.0.0
args: ["--verbosity=trace",
"--log-format=color",
"--dockerfile=Dockerfile",
"--context=dir:///workspace/",
"--destination=harbor.it.cn/it/buildpack-linux:v2.0-ubuntu-test2",
"--skip-tls-verify=true",
"--insecure=true"]
volumeMounts:
- name: dockerfile-storage
mountPath: /workspace/
- name: kaniko-secret
mountPath: /kaniko/.docker
restartPolicy: Never
volumes:
- name: kaniko-secret
secret:
secretName: regcred
items:
- key: .dockerconfigjson
path: config.json
- name: dockerfile-storage
persistentVolumeClaim:
claimName: dockerfile-claim
volume.yaml
[root@m1 demo1]# cat volume.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: dockerfile
labels:
type: local
spec:
capacity:
storage: 10Gi
accessModes:
- ReadWriteOnce
storageClassName: local-storage
hostPath:
path: /root/kaniko/demo1
volume-claim.yaml
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
name: dockerfile-claim
namespace: kaniko
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 8Gi
storageClassName: local-storage
echo -e 'FROM alpine \nRUN echo "created from standard input"' > Dockerfile | tar -cf - Dockerfile | gzip -9 | docker run \
--interactive -v $(pwd):/workspace xkfen/kaniko:v1.0.0 \
--context tar://stdin \
--destination=registry.local/it/buildpack-linuxk:v2.0-alpine
echo -e 'FROM alpine \nRUN echo "created from standard input"' > Dockerfile | tar -cf - Dockerfile | gzip -9 | kubectl run kaniko-input-k8s \
--rm --stdin=true \
--image=xkfen/kaniko:latest --restart=Never \
--overrides='{
"apiVersion": "v1",
"spec": {
"containers": [
{
"name": "kaniko",
"image": "xkfen/kaniko:v1.0.0",
"stdin": true,
"stdinOnce": true,
"args": [
"--dockerfile=Dockerfile",
"--context=tar://stdin",
"--destination=registry.local/it/buildpack-linux-k8s:v2.0-alpine"
]
}
]
}
}