Dunia K1: Medan Selera

Anatomi manifest

Anda akan belajar: empat bahagian setiap pesanan Kubernetes, dan satu yang Kubernetes tulis sendiri.

Teks BM belum disemak oleh penutur asli.

Disemak dengan Kubernetes 1.37 pada 31 Okt 2026

Masalahnya

Anda di sini: kluster kind-dev namespace default

~/shop $ kubectl apply -f tray.yamlpod/tray created~/shop $ kubectl get podsNAME   READY   STATUS    RESTARTS   AGEtray   0/1     Pending   0          0s

Satu fail kecil buat dulang ini. Apa yang setiap baris beritahu Kubernetes?

Cuba

Fail ini ialah : pesanan yang ditulis dalam YAML. Tekan 4 kunci paling luarnya. Ia bermula di tepi kiri.

Tekan 4 kunci paling luar dalam tray.yaml.

0 daripada 4 dijumpai

Cuba

Siapa tulis setiap bahagian? Susun.

Seret kad ke dalam kotak. Atau ketik kad, kemudian ketik kotak.

Tengok

Anda di sini: kluster kind-dev namespace default

~/shop $ kubectl get pod tray -o jsonpath={.status.phase}Running

spec ialah apa yang anda pesan. ialah apa yang Kubernetes nampak sekarang. Ia kotak Nampak pada papan pengurus.

Teka

Anda tambah replicas: 3 di bawah spec Pod ini. Apa jadi?

Cuba

Pesanan ini ditolak. Baca baris merah, kemudian betulkan fail sehingga kubectl apply jadi hijau.

Baiki manifest ini, kemudian tekan Apply.

tray.yaml11 baris

Anda berjaya!

Kini anda boleh baca empat bahagian mana-mana manifest.

Nak tahu lebih (pilihan)

Lihat setiap medan yang Kubernetes tambah. uid, creationTimestamp dan seluruh status datang daripada kluster. Jangan salin balik ke dalam fail anda.

Anda di sini: kluster kind-dev namespace default

~/shop $ kubectl get pod tray -o yamlapiVersion: v1kind: Podmetadata:  annotations:    kubectl.kubernetes.io/last-applied-configuration: |      {"apiVersion":"v1","kind":"Pod","metadata":{"annotations":{},"labels":{"app":"tray"},"name":"tray","namespace":"default"},"spec":{"containers":[{"image":"nginx:1.29-alpine","name":"web"}]}}  creationTimestamp: "2026-10-31T01:00:00Z"  generation: 1  labels:    app: tray  name: tray  namespace: default  resourceVersion: "465"  uid: 9df47b7e-ac53-409c-af1b-7c3199b9b3daspec:  containers:  - image: nginx:1.29-alpine    imagePullPolicy: IfNotPresent    name: web    resources: {}    terminationMessagePath: /dev/termination-log    terminationMessagePolicy: File    volumeMounts:    - mountPath: /var/run/secrets/kubernetes.io/serviceaccount      name: kube-api-access-5mrlb      readOnly: true  dnsPolicy: ClusterFirst  enableServiceLinks: true  nodeName: dev-worker  preemptionPolicy: PreemptLowerPriority  priority: 0  restartPolicy: Always  schedulerName: default-scheduler  securityContext: {}  serviceAccount: default  serviceAccountName: default  terminationGracePeriodSeconds: 30  tolerations:  - effect: NoExecute    key: node.kubernetes.io/not-ready    operator: Exists    tolerationSeconds: 300  - effect: NoExecute    key: node.kubernetes.io/unreachable    operator: Exists    tolerationSeconds: 300  volumes:  - name: kube-api-access-5mrlb    projected:      defaultMode: 420      sources:      - serviceAccountToken:          expirationSeconds: 3607          path: token      - configMap:          items:          - key: ca.crt            path: ca.crt          name: kube-root-ca.crt      - downwardAPI:          items:          - fieldRef:              apiVersion: v1              fieldPath: metadata.namespace            path: namespacestatus:  conditions:  - lastTransitionTime: "2026-10-31T01:00:01Z"    status: "True"    type: PodReadyToStartContainers  - lastProbeTime: null    lastTransitionTime: "2026-10-31T01:00:01Z"    status: "True"    type: Initialized  - lastProbeTime: null    lastTransitionTime: "2026-10-31T01:00:04Z"    status: "True"    type: Ready  - lastProbeTime: null    lastTransitionTime: "2026-10-31T01:00:04Z"    status: "True"    type: ContainersReady  - lastProbeTime: null    lastTransitionTime: "2026-10-31T01:00:00Z"    status: "True"    type: PodScheduled  containerStatuses:  - containerID: containerd://8ca6a0f98c519efefae4afde2da402928a5f0947fa2f465a1a3f9c3dd11bfb47    image: docker.io/library/nginx:1.29-alpine    imageID: docker.io/library/nginx@sha256:634c4c1be1f0a965c7ab54a0c574f9cd9302c552246c081e396ca55fe5e19815    lastState: {}    name: web    ready: true    restartCount: 0    started: true    state:      running:        startedAt: "2026-10-31T01:00:04Z"    volumeMounts:    - mountPath: /var/run/secrets/kubernetes.io/serviceaccount      name: kube-api-access-5mrlb      readOnly: true      recursiveReadOnly: Disabled  hostIP: 172.18.0.3  hostIPs:  - ip: 172.18.0.3  phase: Running  podIP: 10.244.1.3  podIPs:  - ip: 10.244.1.3  qosClass: BestEffort  startTime: "2026-10-31T01:00:01Z"

Pod penuh seperti yang disimpan: medan anda, ditambah banyak nilai lalai dan blok status yang Kubernetes tulis. Output terminal: $ kubectl get pod tray -o yaml apiVersion: v1 kind: Pod metadata: annotations: kubectl.kubernetes.io/last-applied-configuration: | {"apiVersion":"v1","kind":"Pod","metadata":{"annotations":{},"labels":{"app":"tray"},"name":"tray","namespace":"default"},"spec":{"containers":[{"image":"nginx:1.29-alpine","name":"web"}]}} creationTimestamp: "2026-10-31T01:00:00Z" generation: 1 labels: app: tray name: tray namespace: default resourceVersion: "465" uid: 9df47b7e-ac53-409c-af1b-7c3199b9b3da spec: containers: - image: nginx:1.29-alpine imagePullPolicy: IfNotPresent name: web resources: {} terminationMessagePath: /dev/termination-log terminationMessagePolicy: File volumeMounts: - mountPath: /var/run/secrets/kubernetes.io/serviceaccount name: kube-api-access-5mrlb readOnly: true dnsPolicy: ClusterFirst enableServiceLinks: true nodeName: dev-worker preemptionPolicy: PreemptLowerPriority priority: 0 restartPolicy: Always schedulerName: default-scheduler securityContext: {} serviceAccount: default serviceAccountName: default terminationGracePeriodSeconds: 30 tolerations: - effect: NoExecute key: node.kubernetes.io/not-ready operator: Exists tolerationSeconds: 300 - effect: NoExecute key: node.kubernetes.io/unreachable operator: Exists tolerationSeconds: 300 volumes: - name: kube-api-access-5mrlb projected: defaultMode: 420 sources: - serviceAccountToken: expirationSeconds: 3607 path: token - configMap: items: - key: ca.crt path: ca.crt name: kube-root-ca.crt - downwardAPI: items: - fieldRef: apiVersion: v1 fieldPath: metadata.namespace path: namespace status: conditions: - lastTransitionTime: "2026-10-31T01:00:01Z" status: "True" type: PodReadyToStartContainers - lastProbeTime: null lastTransitionTime: "2026-10-31T01:00:01Z" status: "True" type: Initialized - lastProbeTime: null lastTransitionTime: "2026-10-31T01:00:04Z" status: "True" type: Ready - lastProbeTime: null lastTransitionTime: "2026-10-31T01:00:04Z" status: "True" type: ContainersReady - lastProbeTime: null lastTransitionTime: "2026-10-31T01:00:00Z" status: "True" type: PodScheduled containerStatuses: - containerID: containerd://8ca6a0f98c519efefae4afde2da402928a5f0947fa2f465a1a3f9c3dd11bfb47 image: docker.io/library/nginx:1.29-alpine imageID: docker.io/library/nginx@sha256:634c4c1be1f0a965c7ab54a0c574f9cd9302c552246c081e396ca55fe5e19815 lastState: {} name: web ready: true restartCount: 0 started: true state: running: startedAt: "2026-10-31T01:00:04Z" volumeMounts: - mountPath: /var/run/secrets/kubernetes.io/serviceaccount name: kube-api-access-5mrlb readOnly: true recursiveReadOnly: Disabled hostIP: 172.18.0.3 hostIPs: - ip: 172.18.0.3 phase: Running podIP: 10.244.1.3 podIPs: - ip: 10.244.1.3 qosClass: BestEffort startTime: "2026-10-31T01:00:01Z"

Latihan sebenar (pilihan): di kluster kind anda, jalankan kubectl get pod tray -o yaml dan cari blok status.