Kubernetes从多个私有Docker注册表中提取 [英] Kubernetes pull from multiple private docker registries

问题描述

要使用私有Docker存储库中的Docker容器，kubernetes建议创建一个类型为 docker-registry的机密，并在您的部署中引用它。

To use a docker container from a private docker repo, kubernetes recommends creating a secret of type 'docker-registry' and referencing it in your deployment.

https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/

kubectl create secret docker-registry regcred --docker-server=<your-registry-server> --docker-username=<your-name> --docker-password=<your-pword> --docker-email=<your-email>

然后在头盔图或kubernetes部署文件中，使用 imagePullSecrets

Then in your helm chart or kubernetes deployment file, use imagePullSecrets

apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: foo
spec:
  replicas: {{ .Values.replicaCount }}
  template: 
    spec:
      imagePullSecrets:
      - name: regcred
      containers:
      - name: foo
        image: foo.example.com

这可行，但是要求所有容器都来自同一注册表。

This works, but requires that all containers be sourced from the same registry.

您将如何从2个注册表中提取2个容器（例如，当使用与主要容器分开存放的边车时）？

How would you pull 2 containers from 2 registries (e.g. when using a sidecar that is stored separate from the primary container) ?

apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: foo
spec:
  replicas: {{ .Values.replicaCount }}
  template: 
    spec:
      containers:
      - name: foo
        image: foo.example.com
        imagePullSecrets:
        - name: foo-secret
      - name: bar
        image: bar.example.com
        imagePullSecrets:
        - name: bar-secret

我尝试创建2个机密 foo -secret 和 bar-secret 并分别引用它们，但是我发现它无法拉出两个容器。

I've tried creating 2 secrets foo-secret and bar-secret and referencing each appropriately, but I find it fails to pull both containers.

推荐答案

您必须直接在容器级别添加 imagePullSecrets：，但是您可以在那里拥有多个秘密。

You have to include imagePullSecrets: directly at the pod level, but you can have multiple secrets there.

apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: foo
spec:
  replicas: {{ .Values.replicaCount }}
  template: 
    spec:
      imagePullSecrets:
      - name: foo-secret
      - name: bar-secret
      containers:
      - name: foo
        image: foo.example.com/foo-image
      - name: bar
        image: bar.example.com/bar-image

有关此Kubernetes的文档注意：

如果需要访问多个注册表，则可以为每个注册表创建一个秘密。当为您的Pod提取图像时，Kubelet会将任何 imagePullSecrets 合并到单个虚拟 .docker / config.json 中。

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