Google Cloud Platform (GCP) offers a vast array of tools and services for developers that can be used to simplify the process of building and deploying applications. One such tool is Cloud Build, which allows you to build, test, and deploy code with automation and scalability. In this article, we will discuss the gcloud builds submit command which is used to initiate a Cloud Build job, and provide code examples to show how it can be used.
The gcloud builds submit command can be used to submit a build job to Cloud Build, which will then run your build steps to create a Docker image or perform any other specified tasks. The command can be run from a command-line tool, such as Cloud Shell, or integrated within a CI/CD pipeline. The gcloud builds submit command accepts a number of options and flags, which we will discuss below.
Some of the important options that can be used with gcloud builds submit include:
- –config: This option specifies the path to the Cloud Build configuration file. By default, Cloud Build looks for a file named cloudbuild.yaml in the current directory, but you can provide a different file with this option.
- –substitutions: This option allows you to pass in environment variables or other parameters to the build. These values can then be used within the Cloud Build configuration file.
- –project: This option specifies the GCP project ID that contains the Cloud Build configuration and resources.
Now that we have a basic understanding of the gcloud builds submit command and its options, let's look at some code examples to see how it can be used.
Example 1 – Running a simple build with a Dockerfile:
In this example, we will submit a build job for a simple Docker image. We assume that you have a Dockerfile in the current directory.
$ gcloud builds submit --tag gcr.io/[PROJECT-ID]/my-image .
In this command, we are submitting a build job with the following parameters:
- –tag: This option specifies the name of the Docker image that will be created. We are using the format gcr.io/[PROJECT-ID]/my-image to ensure that the image is stored in the GCP Container Registry.
- .: This specifies the build context, which is the directory that contains the Dockerfile and any other files that are needed for the build.
Example 2 – Using a Cloud Build configuration file:
In this example, we will submit a build job using a Cloud Build configuration file named cloudbuild.yaml, which is located in the current directory.
$ gcloud builds submit --config cloudbuild.yaml --substitutions _ENV=dev,_REGION=us-central1 .
In this command, we are submitting a build job with the following parameters:
- –config: This specifies the path to the Cloud Build configuration file.
- –substitutions: This option is used to pass in environment variables or other parameters to the Cloud Build job, which can be used within the configuration file. In this case, we are passing in two values: _ENV=dev and _REGION=us-central1.
Example 3 – Integrating with a CI/CD pipeline:
In this example, we will show how the gcloud builds submit command can be integrated within a CI/CD pipeline. We assume that you have set up a pipeline using a tool such as Jenkins, GitLab, or CircleCI.
$ gcloud builds submit --config cloudbuild.yaml --substitutions _ENV=${ENVIRONMENT_NAME},_TAG=${BUILD_NUMBER} .
In this example, we are submitting a build job with parameters that can be passed in from the pipeline. We are using the ${ENVIRONMENT_NAME} and ${BUILD_NUMBER} variables to dynamically generate the Docker image tag.
Conclusion:
The gcloud builds submit command is a powerful tool that can be used to automate the build and deployment of applications on Google Cloud Platform. With proper configuration and integration, this command can be used within a CI/CD pipeline to streamline the development and deployment process. We hope this article has given you a good understanding of how to use gcloud builds submit with code examples.
Cloud Build is a fully automated build, test, and deploy service provided by Google Cloud Platform (GCP) that allows you to build and execute container images or other artifacts. One of the primary tools used to initiate a Cloud Build job is gcloud builds submit, which we discussed in the previous article.
In this article, we will delve deeper into Cloud Build and explore how it can help developers with building and deploying applications. We will cover some of the essential features of Cloud Build, including building Docker images, running tests, and deploying code.
Building Docker Images:
Cloud Build can build Docker images from a Dockerfile in any programming language or framework. Cloud Build creates a Docker image by running the steps in the Dockerfile, which are usually a series of commands that install dependencies, compile the application code, and set up the environment. Once the Docker image is built, Cloud Build pushes the built image to the GCP Container Registry or another container registry.
To build a Docker image using Cloud Build, you can use the –tag option with the gcloud builds submit command, as shown below:
$ gcloud builds submit --tag gcr.io/[PROJECT_ID]/[IMAGE_NAME] .
Running Tests:
Another important feature of Cloud Build is the ability to run tests on the application. Once the application code is built into a container image, Cloud Build can run tests on that image to verify that it behaves as expected.
To run tests using Cloud Build, you can add extra steps in the cloudbuild.yaml configuration file. For example, you can use the gcloud command to run tests on the container image, as shown below:
steps:
- name: 'gcr.io/cloud-builders/gcloud'
args: ['container', 'run', 'gcr.io/[PROJECT_ID]/[IMAGE_NAME]', 'npm', 'test']
Deploying Code:
After building and testing the container image, you can deploy it to a GCP service. Cloud Build supports a variety of deployment options, such as App Engine, Kubernetes Engine, and Cloud Functions.
To deploy a container image using Cloud Build, you can use the gcloud command to deploy the image to the desired service, as shown below:
steps:
- name: 'gcr.io/cloud-builders/gcloud'
args: ['app', 'deploy']
Conclusion:
Cloud Build is a powerful tool for developers that provides an end-to-end solution for building and deploying applications. With features like building Docker images, running tests, and deploying code, Cloud Build automates many of the tasks that developers would otherwise have to run manually. In combination with other GCP services, Cloud Build can provide a complete solution for building and deploying applications, reducing the time and effort required to bring an application to production.
Popular questions
- What is gcloud builds submit?
- gcloud builds submit is a command in Google Cloud Platform that allows developers to submit a build job to Cloud Build, which will then run their build steps to create a Docker image or perform any other specified tasks.
- What are the important options that can be used with gcloud builds submit?
- The important options that can be used with gcloud builds submit include –config, –substitutions, and –project.
- What is the purpose of the –tag option in gcloud builds submit?
- The –tag option in gcloud builds submit is used to specify the name of the Docker image that will be created.
- Can Cloud Build run tests on the application after building a Docker image?
- Yes, Cloud Build can run tests on the application after building a Docker image by adding extra steps in the cloudbuild.yaml configuration file.
- Which other GCP services can be used to deploy a container image using Cloud Build?
- Other GCP services that can be used to deploy a container image using Cloud Build include App Engine, Kubernetes Engine, and Cloud Functions.
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