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README.md

Mortar

Using this builder with Google Container Engine

To use this builder, your builder service account will need IAM permissions sufficient for the operations you want to perform. For typical read-only usage, the "Kubernetes Engine Viewer" role is sufficient. To deploy container images on a GKE cluster, the "Kubernetes Engine Developer" role is sufficient. Check the GKE IAM page for details.

For most use, kubectl will need to be configured to point to a specific GKE cluster. You can configure the cluster by setting environment variables.

# Set region for regional GKE clusters or Zone for Zonal clusters
CLOUDSDK_COMPUTE_REGION=<your cluster's region>
or
CLOUDSDK_COMPUTE_ZONE=<your cluster's zone>

# Name of GKE cluster
CLOUDSDK_CONTAINER_CLUSTER=<your cluster's name>

# (Optional) Project of GKE Cluster, only if you want kustomize to authenticate
# to a GKE cluster in another project (requires IAM Service Accounts are properly setup)
GCLOUD_PROJECT=<destination cluster's GCP project>

Setting the environment variables above will cause this step's entrypoint to first run a command to fetch cluster credentials as follows.

gcloud container clusters get-credentials --zone "$CLOUDSDK_COMPUTE_ZONE" "$CLOUDSDK_CONTAINER_CLUSTER"`

Then, kubectl and consequently kustomize will have the configuration needed to talk to your GKE cluster.

Firing the shot

The default entrypoint will automatically apply your build via kubectl apply -f - if you set the env APPLY=true. Thus, you can run:

- id: deploy
  name: 'gcr.io/$PROJECT_ID/mortar'
  args:
  - 'fire'
  - 'deployment.yaml'
  - 'myshot'
  env:
    - 'CLOUDSDK_COMPUTE_ZONE=us-west1'
    - 'CLOUDSDK_CONTAINER_CLUSTER=tf-k8s'
    - 'GCLOUD_PROJECT=compound-dev'

Building this builder

To build this builder, run the following command in this directory.

$ gcloud builds submit . --config=cloudbuild.yaml
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