kubernetes - 在streamset-ns命名空间中找不到资源

Question

我需要一些帮助才能知道我在这里缺少什么。
我正在尝试为我的实验室(本地主机)从定制的values.yml文件部署流集应用程序。我试图将Pod部署在“streamset-ns” 命名空间上。我面临以下错误。
stderr:在streamset-ns命名空间中找不到资源。

任务下的主脚本

- name: Listing all Namespaces
 command: "kubectl get namespaces"
 register: namespace_list

- name: Checking if streamsets is installed in "{{streamsets_namespace}}"
 command: "kubectl get pods -n {{streamsets_namespace}}"
 register: if_streamsets

- set_fact:
 message: "{{ ((task_type == 'install') and ('deployed' in if_streamsets.stdout)) or ((task_type == 'uninstall') and ('deployed' in if_streamsets.stdout)) | ternary('streamsets is installed', 'streamsets is not installed') }}"

- debug:
 msg: "{{message}}"

- name: Checking streamsets running status
 block:
 - debug:
 msg: "streamsets is already deployed in {{streamsets_namespace}}"

 - name: Getting deployed pod status
 command: "kubectl get pods -n {{streamsets_namespace}}"
 register: streamsets_pod_status

 - debug:
 var: streamsets_pod_status.stdout_lines
 when: "'streamsets' in if_streamsets.stdout and 'deployed' in if_streamsets.stdout"


- name: Installing streamsets
 block:
 - name: Create a Kubernetes namespace for streamsets
 k8s:
 name: "{{streamsets_namespace}}"
 api_version: v1
 kind: Namespace
 state: present
 when: "streamsets_namespace not in namespace_list.stdout_lines"

# - name: Adding Helm Repository for Streamsets
# command: "{{helm_location}}/helm repo add streamsets {{streamsets_helm_charts}}"
# register: helm_repo_results
# changed_when: False
# failed_when: "'Error' in helm_repo_results.stderr"
#
 - name: Applying Template Module
 template:
 src: "roles/streamsets/templates/values.yml.j2"
 dest: "/home/{{ansible_user}}/values.yml"
 mode: '0644'

 - name: Install streamsets using Command Module
 command: "kubectl create -f /home/{{ansible_user}}/values.yml -n {{streamsets_namespace}}"
 register: streamsets_result
 failed_when: "'Error' in streamsets_result.stderr"

 - debug:
 var: streamsets_result.stdout_lines

# - name: Checking Streamsets Deployment Status
# action:
# shell kubectl get pods -n "{{streamsets_namespace}}"| grep "{{streamsets_release_name}}" | grep '1/1' |wc -l
# register: streamsets_deployment_status
# until: streamsets_deployment_status.stdout|int == streamsets_replicas | int
# retries: 5
# delay: 60
# 
# - debug:
# var: streamsets_deployment_status.stdout_lines


 - name: Checking Streamsets Deployment Status
 command: kubectl -n "{{streamsets_namespace}}" wait --for=condition=Ready pods --all --timeout=180s
 register: Streamsets_pod_status
 failed_when: "'Error' in Streamsets_pod_status.stderr"


 - name: Removing deployed configuration files for Streamsets
 file:
 path: "/home/{{ansible_user}}/values.yml"
 state: absent
 when: "'install' == task_type and 'streamsets' not in if_streamsets.stdout and 'deployed' not in if_streamsets.stdout"


- name: Unistalling streamsets from K8s
 block:
 - name: Removing Statefulsets & Service from "{{streamsets_namespace}}"
 action:
 shell kubectl -n "{{streamsets_namespace}}" delete statefulsets "{{streamsets_release_name}}" && kubectl -n "{{streamsets_namespace}}" delete service "{{streamsets_release_name}}"-service
 register: streamsets_removal_status
 - debug:
 var: streamsets_removal_status.stdout_lines

# - name: Checking PVC status in "{{streamsets_namespace}}"
# shell: kubectl get pvc -n "{{streamsets_namespace}}" | grep -v NAME | cut -d ' ' -f1
# register: streamsets_pvc_status
# - debug:
# var: streamsets_pvc_status.stdout_lines

# - name: Delete occupied pvc for streamsets
# command: "kubectl delete pvc -n {{streamsets_namespace}} {{streamsets_pvc_status.stdout}}"
# register: pvc_delete_status
# when: streamsets_pvc_status.stdout_lines != ''
# - debug:
# var: pvc_delete_status.stdout_lines

 when: "'uninstall' == task_type and 'streamsets' in if_streamsets.stdout and 'deployed' in if_streamsets.stdout"


- name: Playbook Signature
 block:
 - debug:
 msg: "No 'task_type' supplied. Playbook signature: ansible-playbook -i <hosts file> <playbook> --extra-vars 'task_type=<install/uninstall>'"
 when: "task_type == '' or ('install' or 'uninstall') not in task_type"

在模板下创建的 yml

---
apiVersion: v1
kind: Service
metadata:
  name: streamsets-service
  labels:
    name: streamsets
spec:
  type: NodePort
  ports:
  - port: {{streamsets_port}}
    targetPort: 18630
    nodePort: {{streamsets_nodePort}}
  selector:
    role: streamsets
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: streamsets
spec:
  serviceName: streamsets-service
  replicas: {{streamsets_replicas}}
  selector: 
    matchLabels:
      name: streamsets
  template:
    metadata:
      labels:
        role: streamsets
        environment: test
        replicaset: streamsetsRepSet
    spec:
      terminationGracePeriodSeconds: 10
      containers:
        - name: {{streamsets_image_container}}
          image: {{streamsets_image_name}}:{{streamsets_image_version}}
          imagePullPolicy: Always
          ports:
            - containerPort: 18630
          volumeMounts:
          - name: data
            mountPath: /data
  volumeClaimTemplates:
  - metadata:
      name: data
    spec:
      accessModes: [ "ReadWriteOnce" ]
      storageClassName: {{streamsets_storageClass}}
      resources:
        requests:
          storage: {{streamsets_storage_volume}}

你能帮我么？

Answer 1

当我查看您已作为评论发布的错误时，看来selector中的不匹配。

selector: 
  matchLabels:
    name: streamsets
template:
  metadata:
    labels:
      role: streamsets
      environment: test
      replicaset: streamsetsRepSet

“...。您必须将StatefulSet的.spec.selector字段设置为与其.spec.template.metadata.labels的标签相匹配...” [1]

您可以调整标签，选择器也可以匹配模板标签并重试吗？

例:

selector: 
  matchLabels:
    name: streamsets
template:
  metadata:
    labels:
      name: streamsets

[1] https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/#pod-selector