Cloud Build kubectl - 如何將上一步的輸出應用到 Kubernetes 集群

Question

我有一個運行 Bazel 命令的簡單cloudbuild.yaml文件。 此命令以日志輸出的形式返回 Kubernetes 配置。

我的目標是將第一步的輸出應用到我的 Kubernetes 集群中。

steps:
  - name: gcr.io/cloud-builders/bazel
    args: ["run", "//:kubernetes"]

  - name: "gcr.io/cloud-builders/kubectl"
    args: ["apply", "<log output of previous step>"]
    env:
      - "CLOUDSDK_COMPUTE_ZONE=europe-west3-a"
      - "CLOUDSDK_CONTAINER_CLUSTER=cents-ideas"

更新

我嘗試了以下方法：

- name: gcr.io/cloud-builders/bazel
  entrypoint: /bin/bash
  args:
    [
      "bazel",
      "run",
      "//:kubernetes",
      " > kubernetes.yaml",
    ]

- name: "gcr.io/cloud-builders/kubectl"
  args: ["apply", "-f", "kubernetes.yaml"]
  env:
    - "CLOUDSDK_COMPUTE_ZONE=europe-west3-a"
    - "CLOUDSDK_CONTAINER_CLUSTER=cents-ideas"

但是后來我收到了這個錯誤：

Running: kubectl apply -f kubernetes.yaml
error: the path "kubernetes.yaml" does not exist

Answer 1

將相同的目錄（不是文件）卷裝入兩個步驟。

將 Bazel 命令輸出通過管道傳輸到文件。

在kubectl apply --filename=步驟中引用該文件

例子

options:
  volumes:
    - name: test
      path: /test
steps:
  - name: busybox
    args:
      - "ls"
      - "-l"
      - "/test"
  - name: busybox
    entrypoint: "/bin/sh"
    args:
      - "-c"
      - "touch /test/freddie"
  - name: busybox
    args:
      - "ls"
      - "-l"
      - "/test"
  - name: busybox
    args:
      - "cp"
      - "/test/freddie"
      - "/workspace"
  - name: busybox
    args:
      - "ls"
      - "-l"
      - "/workspace"

使用options定義volumes將體積應用於所有步驟； 您也可以簡單地重復每個步驟中的volumes 。

該示例（希望如此）展示了如何使用默認/workspace和用戶定義的/test卷在卷中創建文件（並將此文件復制到默認/workspace卷以證明它已添加。

輸出：

BUILD
Starting Step #0
Step #0: Already have image: busybox
Step #0: total 0
Finished Step #0
Starting Step #1
Step #1: Already have image: busybox
Finished Step #1
Starting Step #2
Step #2: Already have image: busybox
Step #2: total 0
Step #2: -rw-r--r--    1 root     root             0 Feb  4 17:53 freddie
Finished Step #2
Starting Step #3
Step #3: Already have image: busybox
Finished Step #3
Starting Step #4
Step #4: Already have image: busybox
Step #4: total 4
Step #4: -rw-r--r--    1 1000     1000           460 Feb  4 17:53 cloudbuild.yaml
Step #4: -rw-r--r--    1 root     root             0 Feb  4 17:53 freddie
Finished Step #4
PUSH
DONE

Answer 2

以下是安裝卷的方法：

https://cloud.google.com/cloud-build/docs/build-config#volumes

基本上添加：

  volumes:
  - name: 'vol1'
    path: '/persistent_volume'

然后在寫入/讀取/persistent_volume/filename/時引用完整路徑/persistent_volume/filename/ 。

Answer 3

正如每個人都已經在這里建議的那樣使用 卷。

像這樣調整你的cloudbuild.yaml文件：

- name: gcr.io/cloud-builders/bazel
  entrypoint: /bin/bash
  args:
    [
      "bazel",
      "run",
      "//:kubernetes",
      " > /workspace/kubernetes.yaml",
    ]

- name: "gcr.io/cloud-builders/kubectl"
  args: ["apply", "-f", "/workspace/kubernetes.yaml"]
  env:
    - "CLOUDSDK_COMPUTE_ZONE=europe-west3-a"
    - "CLOUDSDK_CONTAINER_CLUSTER=cents-ideas"