红帽全球峰会第 4 章 在基础架构节点上部署 Red Hat Quay
默认情况下，当使用 Red Hat Quay Operator 部署 registry 时，与 Quay 相关的 pod 会被放在任意 worker 节点上。有关如何使用机器集将节点配置为仅托管基础架构组件的更多信息，请参阅 创建基础架构机器集。
如果不使用 OpenShift Container Platform 机器集资源来部署 infra 节点，本文档中的部分演示了如何为基础架构目的手动标记和污点节点。在手动配置基础架构节点或使用机器集后，您可以使用节点选择器和容限来控制这些节点上的 Quay pod 放置。
4.1. 为基础架构使用标记和污点节点
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使用以下步骤为基础架构使用标签和包含的节点。
输入以下命令以显示 master 和 worker 节点。在本例中，有三个 master 节点和 6 个 worker 节点。
$ oc get nodes输出示例
NAME STATUS ROLES AGE VERSION user1-jcnp6-master-0.c.quay-devel.internal Ready master 3h30m v1.20.0+ba45583 user1-jcnp6-master-1.c.quay-devel.internal Ready master 3h30m v1.20.0+ba45583 user1-jcnp6-master-2.c.quay-devel.internal Ready master 3h30m v1.20.0+ba45583 user1-jcnp6-worker-b-65plj.c.quay-devel.internal Ready worker 3h21m v1.20.0+ba45583 user1-jcnp6-worker-b-jr7hc.c.quay-devel.internal Ready worker 3h21m v1.20.0+ba45583 user1-jcnp6-worker-c-jrq4v.c.quay-devel.internal Ready worker 3h21m v1.20.0+ba45583 user1-jcnp6-worker-c-pwxfp.c.quay-devel.internal Ready worker 3h21m v1.20.0+ba45583 user1-jcnp6-worker-d-h5tv2.c.quay-devel.internal Ready worker 3h22m v1.20.0+ba45583 user1-jcnp6-worker-d-m9gg4.c.quay-devel.internal Ready worker 3h21m v1.20.0+ba45583输入以下命令为基础架构使用标记三个 worker 节点：
$ oc label node --overwrite user1-jcnp6-worker-c-pwxfp.c.quay-devel.internal node-role.kubernetes.io/infra=$ oc label node --overwrite user1-jcnp6-worker-d-h5tv2.c.quay-devel.internal node-role.kubernetes.io/infra=$ oc label node --overwrite user1-jcnp6-worker-d-m9gg4.c.quay-devel.internal node-role.kubernetes.io/infra=现在，当列出集群中的节点时，最后三个 worker 节点具有
infra角色。例如：$ oc get nodesExample
NAME STATUS ROLES AGE VERSION user1-jcnp6-master-0.c.quay-devel.internal Ready master 4h14m v1.20.0+ba45583 user1-jcnp6-master-1.c.quay-devel.internal Ready master 4h15m v1.20.0+ba45583 user1-jcnp6-master-2.c.quay-devel.internal Ready master 4h14m v1.20.0+ba45583 user1-jcnp6-worker-b-65plj.c.quay-devel.internal Ready worker 4h6m v1.20.0+ba45583 user1-jcnp6-worker-b-jr7hc.c.quay-devel.internal Ready worker 4h5m v1.20.0+ba45583 user1-jcnp6-worker-c-jrq4v.c.quay-devel.internal Ready worker 4h5m v1.20.0+ba45583 user1-jcnp6-worker-c-pwxfp.c.quay-devel.internal Ready infra,worker 4h6m v1.20.0+ba45583 user1-jcnp6-worker-d-h5tv2.c.quay-devel.internal Ready infra,worker 4h6m v1.20.0+ba45583 user1-jcnp6-worker-d-m9gg4.c.quay-devel.internal Ready infra,worker 4h6m v1.20.0+ba4558当 worker 节点被分配了
infra角色时，用户工作负载可能会意外地分配给 infra 节点。要避免这种情况，您可以将污点应用到 infra 节点，然后为要控制的 pod 添加容限。例如：$ oc adm taint nodes user1-jcnp6-worker-c-pwxfp.c.quay-devel.internal node-role.kubernetes.io/infra:NoSchedule$ oc adm taint nodes user1-jcnp6-worker-d-h5tv2.c.quay-devel.internal node-role.kubernetes.io/infra:NoSchedule$ oc adm taint nodes user1-jcnp6-worker-d-m9gg4.c.quay-devel.internal node-role.kubernetes.io/infra:NoSchedule
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