我有这个基本的Dockerfile:
FROM nginx
RUN apt-get -y update && apt install -y curl
在我的Kubernetes集群的主节点中,我构建了该图像:
docker build -t cnginx:v1 .
docker images
表示图片已正确生成:
REPOSITORY TAG IMAGE ID CREATED SIZE
cgninx v1 d3b1b19d069e 39 minutes ago 141MB
我使用此部署引用此自定义映像:
apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
kind: Deployment
metadata:
name: nginx-deployment
spec:
selector:
matchLabels:
app: nginx
replicas: 2
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: cnginx
image: cnginx:v1
imagePullPolicy: Never
ports:
- containerPort: 80
nodeSelector:
nodetype: webserver
但是找不到图像:
NAME READY STATUS RESTARTS AGE
nginx-deployment-7dd98bd746-lw6tp 0/1 ErrImageNeverPull 0 4s
nginx-deployment-7dd98bd746-szr9n 0/1 ErrImageNeverPull 0 4s
描述pod信息:
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 1m default-scheduler Successfully assigned nginx-deployment-7dd98bd746-szr9n to kubenode2
Normal SuccessfulMountVolume 1m kubelet, kubenode2 MountVolume.SetUp succeeded for volume "default-token-bpbpl"
Warning ErrImageNeverPull 9s (x9 over 1m) kubelet, kubenode2 Container image "cnginx:v1" is not present with pull policy of Never
Warning Failed 9s (x9 over 1m) kubelet, kubenode2 Error: ErrImageNeverPull
我也尝试过使用默认的imagePullPolicy,还有一些其他的东西,例如用最新的标记图像......
那么,我怎样才能让Kubernetes使用本地生成的docker镜像?
答案 0 :(得分:3)
您的POD安排在您的工作节点上。由于您将imagePullPolicy
设置为never
,因此您需要将图像提供给两个节点。换句话说,您需要像在主服务器上一样在两个节点上构建它。
作为旁注,如果您设置自定义docker注册表并将图像推送到那里,那么从长远来看可能会更容易。