using-cloudbuild-api

Workflows executes commands (gcloud, kubectl) - using Cloud Build API

Note: There's a newer version of this sample that uses standard library for gcloud and kubectl instead of using Cloud Build API directly.

This example shows how to execute commands (such as gcluod, kubectl) from Workflows via Cloud Build.

Create a workflow for gcloud

Create a workflow-gcloud.yaml with a gcloud sub-workflow that executes a given gcloud command in a container based on gcr.io/google.com/cloudsdktool/cloud-sdk in Cloud Build and returns the output of the execution.

Create a workflow for kubectl

Create a workflow-kubectl.yaml with a kubectl sub-workflow that executes a given kubectl command in a container based on gcr.io/cloud-builders/kubectl in Cloud Build and returns the output of the execution.

Deploy the workflows

Make sure you have a Google Cloud project and the project id is set in gcloud:

PROJECT_ID=your-project-id
gcloud config set project $PROJECT_ID

Run setup.sh to enable required services, assign necessary roles and deploy both workflows.

Run the workflow for gcloud

Run the workflow from Google Cloud Console or gcloud:

gcloud workflows run workflow-gcloud

You should see a new build successfully running gcloud in Cloud Build:

You should also see the output of the gcloud command when the workflow succeeds:

result: '["NAME                                                                                        STATE   REVISION_ID  UPDATE_TIME",
"projects/atamel-workflows-gcloud/locations/us-central1/workflows/workflow-gcloud            ACTIVE  000001-7fa   2022-10-07T09:26:27.470230358Z",
"projects/atamel-workflows-gcloud/locations/us-central1/workflows/workflow-kubectl           ACTIVE  000001-215   2022-10-07T09:26:32.511757767Z",
""]'

Run the workflow for kubectl

Run the workflow from Google Cloud Console or gcloud:

gcloud workflows run workflow-kubectl

You should see a new build successfully running gcloud in Cloud Build:

You should also see the output of the kubectl command when the workflow succeeds:

result: '["kubectl controls the Kubernetes cluster manager.",""," Find more information
  at: https://kubernetes.io/docs/reference/kubectl/overview/","","Basic Commands (Beginner):","  create        Create
  a resource from a file or from stdin","  expose        Take a replication controller,
  service, deployment or pod and expose it as a new Kubernetes service","  run           Run
  a particular image on the cluster","  set           Set specific features on objects","","Basic
  Commands (Intermediate):","  explain       Get documentation for a resource","  get           Display
  one or many resources","  edit          Edit a resource on the server","  delete        Delete
  resources by file names, stdin, resources and names, or by resources and label selector","","Deploy
  Commands:","  rollout       Manage the rollout of a resource","  scale         Set
  a new size for a deployment, replica set, or replication controller","  autoscale     Auto-scale
  a deployment, replica set, stateful set, or replication controller","","Cluster
  Management Commands:","  certificate   Modify certificate resources.","  cluster-info  Display
  cluster information","  top           Display resource (CPU/memory) usage","  cordon        Mark
  node as unschedulable","  uncordon      Mark node as schedulable","  drain         Drain
  node in preparation for maintenance","  taint         Update the taints on one or
  more nodes","","Troubleshooting and Debugging Commands:","  describe      Show details
  of a specific resource or group of resources","  logs          Print the logs for
  a container in a pod","  attach        Attach to a running container","  exec          Execute
  a command in a container","  port-forward  Forward one or more local ports to a
  pod","  proxy         Run a proxy to the Kubernetes API server","  cp            Copy
  files and directories to and from containers","  auth          Inspect authorization","  debug         Create
  debugging sessions for troubleshooting workloads and nodes","","Advanced Commands:","  diff          Diff
  the live version against a would-be applied version","  apply         Apply a configuration
  to a resource by file name or stdin","  patch         Update fields of a resource","  replace       Replace
  a resource by file name or stdin","  wait          Experimental: Wait for a specific
  condition on one or many resources","  kustomize     Build a kustomization target
  from a directory or URL.","","Settings Commands:","  label         Update the labels
  on a resource","  annotate      Update the annotations on a resource","  completion    Output
  shell completion code for the specified shell (bash or zsh)","","Other Commands:","  api-resources
  Print the supported API resources on the server","  api-versions  Print the supported
  API versions on the server, in the form of \"group/version\"","  config        Modify
  kubeconfig files","  plugin        Provides utilities for interacting with plugins","  version       Print
  the client and server version information","","Usage:","  kubectl [flags] [options]","","Use
  \"kubectl \u003ccommand\u003e --help\" for more information about a given command.","Use
  \"kubectl options\" for a list of global command-line options (applies to all commands).",""]'