10.9. 手动扩展 control plane 机器

流程

1. 输入以下命令为新的 control plane 节点检索待处理的证书签名请求(CSR)：

   $ oc get csr | grep Pending

   Copy to Clipboard Toggle word wrap

2. 输入以下命令为 control plane 节点批准所有待处理的 CSR：

   $ oc get csr -o go-template='{{range .items}}{{if not .status}}{{.metadata.name}}{{"\n"}}{{end}}{{end}}' | xargs --no-run-if-empty oc adm certificate approve

   Copy to Clipboard Toggle word wrap
   重要

   您必须批准 CSR 才能完成安装。

3. 输入以下命令确认 control plane 节点处于 Ready 状态：

   $ oc get nodes

   Copy to Clipboard Toggle word wrap
   注意

   在安装程序置备的基础架构中，etcd Operator 依赖于 Machine API 来管理 control plane 并确保 etcd 仲裁。然后，Machine API 使用 Machine CR 代表和管理底层 control plane 节点。

4. 创建 BareMetalHost 和 Machine CR，并将其链接到 control plane 节点的 Node CR。

   1. 使用唯一 .metadata.name 值创建 BareMetalHost CR，如下例所示：

      apiVersion: metal3.io/v1alpha1
      kind: BareMetalHost
      metadata:
        name: node-5
        namespace: openshift-machine-api
      spec:
        automatedCleaningMode: metadata
        bootMACAddress: 00:00:00:00:00:02
        bootMode: UEFI
        customDeploy:
          method: install_coreos
        externallyProvisioned: true
        online: true
        userData:
          name: master-user-data-managed
          namespace: openshift-machine-api
      # ...

      Copy to Clipboard Toggle word wrap

   2. 输入以下命令应用 BareMetalHost CR：

      $ oc apply -f <filename> 

      1

      Copy to Clipboard Toggle word wrap

      1

      将 <filename> 替换为 BareMetalHost CR 的名称。

   3. 使用以下示例中所示的唯一 .metadata.name 值创建 Machine CR：

      apiVersion: machine.openshift.io/v1beta1
      kind: Machine
      metadata:
        annotations:
          machine.openshift.io/instance-state: externally provisioned
          metal3.io/BareMetalHost: openshift-machine-api/node-5
        finalizers:
        - machine.machine.openshift.io
        labels:
          machine.openshift.io/cluster-api-cluster: <cluster_name> 

      1

      
          machine.openshift.io/cluster-api-machine-role: master
          machine.openshift.io/cluster-api-machine-type: master
        name: node-5
        namespace: openshift-machine-api
      spec:
        metadata: {}
        providerSpec:
          value:
            apiVersion: baremetal.cluster.k8s.io/v1alpha1
            customDeploy:
              method: install_coreos
            hostSelector: {}
            image:
              checksum: ""
              url: ""
            kind: BareMetalMachineProviderSpec
            metadata:
              creationTimestamp: null
            userData:
              name: master-user-data-managed
      # ...

      Copy to Clipboard Toggle word wrap

      1

      将 <cluster_name> 替换为特定集群的名称，如 test-day2-1-6qv96。

   4. 运行以下命令来获取集群名称：

      $ oc get infrastructure cluster -o=jsonpath='{.status.infrastructureName}{"\n"}'

      Copy to Clipboard Toggle word wrap

   5. 输入以下命令应用 Machine CR：

      $ oc apply -f <filename> 

      1

      Copy to Clipboard Toggle word wrap

      1

      将 <filename> 替换为 Machine CR 的名称。

   6. 通过运行 link-machine-and-node.sh 脚本链接 BareMetalHost、Machine 和 Node 对象：

      1. 将以下 link-machine-and-node.sh 脚本复制到本地机器中：

         #!/bin/bash
         
         # Credit goes to
         # https://bugzilla.redhat.com/show_bug.cgi?id=1801238.
         # This script will link Machine object
         # and Node object. This is needed
         # in order to have IP address of
         # the Node present in the status of the Machine.
         
         set -e
         
         machine="$1"
         node="$2"
         
         if [ -z "$machine" ] || [ -z "$node" ]; then
             echo "Usage: $0 MACHINE NODE"
             exit 1
         fi
         
         node_name=$(echo "${node}" | cut -f2 -d':')
         
         oc proxy &
         proxy_pid=$!
         function kill_proxy {
             kill $proxy_pid
         }
         trap kill_proxy EXIT SIGINT
         
         HOST_PROXY_API_PATH="http://localhost:8001/apis/metal3.io/v1alpha1/namespaces/openshift-machine-api/baremetalhosts"
         
         function print_nics() {
             local ips
             local eob
             declare -a ips
         
             readarray -t ips < <(echo "${1}" \
                                  | jq '.[] | select(. | .type == "InternalIP") | .address' \
                                  | sed 's/"//g')
         
             eob=','
             for (( i=0; i<${#ips[@]}; i++ )); do
                 if [ $((i+1)) -eq ${#ips[@]} ]; then
                     eob=""
                 fi
                 cat <<- EOF
                   {
                     "ip": "${ips[$i]}",
                     "mac": "00:00:00:00:00:00",
                     "model": "unknown",
                     "speedGbps": 10,
                     "vlanId": 0,
                     "pxe": true,
                     "name": "eth1"
                   }${eob}
         EOF
             done
         }
         
         function wait_for_json() {
             local name
             local url
             local curl_opts
             local timeout
         
             local start_time
             local curr_time
             local time_diff
         
             name="$1"
             url="$2"
             timeout="$3"
             shift 3
             curl_opts="$@"
             echo -n "Waiting for $name to respond"
             start_time=$(date +%s)
             until curl -g -X GET "$url" "${curl_opts[@]}" 2> /dev/null | jq '.' 2> /dev/null > /dev/null; do
                 echo -n "."
                 curr_time=$(date +%s)
                 time_diff=$((curr_time - start_time))
                 if [[ $time_diff -gt $timeout ]]; then
                     printf '\nTimed out waiting for %s' "${name}"
                     return 1
                 fi
                 sleep 5
             done
             echo " Success!"
             return 0
         }
         wait_for_json oc_proxy "${HOST_PROXY_API_PATH}" 10 -H "Accept: application/json" -H "Content-Type: application/json"
         
         addresses=$(oc get node -n openshift-machine-api "${node_name}" -o json | jq -c '.status.addresses')
         
         machine_data=$(oc get machines.machine.openshift.io -n openshift-machine-api -o json "${machine}")
         host=$(echo "$machine_data" | jq '.metadata.annotations["metal3.io/BareMetalHost"]' | cut -f2 -d/ | sed 's/"//g')
         
         if [ -z "$host" ]; then
             echo "Machine $machine is not linked to a host yet." 1>&2
             exit 1
         fi
         
         # The address structure on the host doesn't match the node, so extract
         # the values we want into separate variables so we can build the patch
         # we need.
         hostname=$(echo "${addresses}" | jq '.[] | select(. | .type == "Hostname") | .address' | sed 's/"//g')
         
         set +e
         read -r -d '' host_patch << EOF
         {
           "status": {
             "hardware": {
               "hostname": "${hostname}",
               "nics": [
         $(print_nics "${addresses}")
               ],
               "systemVendor": {
                 "manufacturer": "Red Hat",
                 "productName": "product name",
                 "serialNumber": ""
               },
               "firmware": {
                 "bios": {
                   "date": "04/01/2014",
                   "vendor": "SeaBIOS",
                   "version": "1.11.0-2.el7"
                 }
               },
               "ramMebibytes": 0,
               "storage": [],
               "cpu": {
                 "arch": "x86_64",
                 "model": "Intel(R) Xeon(R) CPU E5-2630 v4 @ 2.20GHz",
                 "clockMegahertz": 2199.998,
                 "count": 4,
                 "flags": []
               }
             }
           }
         }
         EOF
         set -e
         
         echo "PATCHING HOST"
         echo "${host_patch}" | jq .
         
         curl -s \
              -X PATCH \
              "${HOST_PROXY_API_PATH}/${host}/status" \
              -H "Content-type: application/merge-patch+json" \
              -d "${host_patch}"
         
         oc get baremetalhost -n openshift-machine-api -o yaml "${host}"

         Copy to Clipboard Toggle word wrap

      2. 输入以下命令使脚本可执行：

         $ chmod +x link-machine-and-node.sh

         Copy to Clipboard Toggle word wrap

      3. 输入以下命令运行脚本：

         $ bash link-machine-and-node.sh node-5 node-5

         Copy to Clipboard Toggle word wrap
         注意

         第一个 node-5 实例代表计算机，第二个实例代表该节点。

验证

1. 通过执行预先存在的 control plane 节点之一来确认 etcd 成员：

   1. 输入以下命令打开到 control plane 节点的远程 shell 会话：

      $ oc rsh -n openshift-etcd etcd-node-0

      Copy to Clipboard Toggle word wrap

   2. 列出 etcd 成员：

      # etcdctl member list -w table

      Copy to Clipboard Toggle word wrap

2. 输入以下命令检查 etcd Operator 配置过程，直到完成为止。预期输出在 PROGRESSING 栏下显示 False。

   $ oc get clusteroperator etcd

   Copy to Clipboard Toggle word wrap

3. 运行以下命令确认 etcd 健康状况：

   1. 打开到 control plane 节点的远程 shell 会话：

      $ oc rsh -n openshift-etcd etcd-node-0

      Copy to Clipboard Toggle word wrap

   2. 检查端点健康状况。预期输出显示端点是健康的。

      # etcdctl endpoint health

      Copy to Clipboard Toggle word wrap

4. 输入以下命令验证所有节点是否已就绪。预期输出显示每个节点条目旁边的 Ready 状态。

   $ oc get nodes

   Copy to Clipboard Toggle word wrap

5. 输入以下命令验证集群 Operator 是否可用。预期输出列出了每个 Operator，并在每个列出的 Operator 旁边显示可用状态为 True。

   $ oc get ClusterOperators

   Copy to Clipboard Toggle word wrap

6. 输入以下命令验证集群版本是否正确：

   $ oc get ClusterVersion

   Copy to Clipboard Toggle word wrap

   输出示例

   NAME      VERSION   AVAILABLE   PROGRESSING   SINCE   STATUS
   version   OpenShift Container Platform.5    True        False         5h57m   Cluster version is OpenShift Container Platform.5

   Copy to Clipboard Toggle word wrap