Deploy a specific Git commit to Firebase using Cloud Build. Example: ./deploy.sh $COMMIT_SHA

deploy.sh

#!/bin/bash

COMMIT_SHA=$1
PROJECT=bay6-next
REPO_NAME=github-<user/organisation>-<repo>
BUILD_BUCKET=gs://builds.example.com
TOKEN=$(gcloud auth application-default print-access-token)

curl https://cloudbuild.googleapis.com/v1/projects/${PROJECT}/builds \
  --request POST \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer $TOKEN" \
  --data @- << EOF
{
  "source": {
    "repoSource": {
      "projectId": "$PROJECT",
      "repoName": "$REPO_NAME",
      "commitSha": "$COMMIT_SHA"
    }
  },
  "tags": [
    "deploy"
  ],
  "steps": [
    {
      "name": "gcr.io/cloud-builders/gsutil",
      "args": [
        "cp",
        "gs://$BUILD_BUCKET/$COMMIT_SHA.tar.gz",
        "$COMMIT_SHA.tar.gz"
      ]
    },
    {
      "name": "alpine",
      "entrypoint": "tar",
      "args": [
        "-xzvf",
        "$COMMIT_SHA.tar.gz"
      ]
    },
    {
      "name": "gcr.io/$PROJECT/firebase",
      "args": [
        "deploy",
        "--project",
        "$PROJECT",
        "--token",
        "<token>"
      ]
    }
  ]
}
EOF