This section will show how to take a Dockerfile project, build it and push to Docker Hub.

This section's subfolder docker containers a Dockerfile and a simple hello-world command:

FROM busybox ADD hello-world /bin/hello-world ENTRYPOINT ["/bin/hello-world"] CMD ["world"]

We could manually create a docker image and push it to Docker Hub. But since we have concourse we will use it instead.

The pipeline for this section is to put a docker-image resource.

The pipeline is below:

jobs: jobs: - name: job-publish public: true serial: true plan: - get: resource-tutorial - put: hello-world-docker-image params: build: resource-tutorial/35_push_docker_image/docker resources: - name: resource-tutorial type: git source: uri: https://github.com/drnic/concourse-tutorial.git - name: hello-world-docker-image type: docker-image source: email: DOCKER_EMAIL username: DOCKER_USERNAME password: DOCKER_PASSWORD repository: drnic/hello-world

Since the source Dockerfile is actually within this tutorial's own git repo, we will use this tutorial repo as the input resource called resource-tutorial. In the job job-publish build plan we get it first; and it is used by the hello-world-docker-image docker-image resource next.

This means the docker subfolder in this tutorial section will be available at folder resource-tutorial/51_dummy_resource_docker_image/docker during the build plan (resource-tutorial is the name of the resource within the job build plan; and 51_dummy_resource_docker_image/docker is the subfolder where the Dockerfile is located).

Your stub.yml now needs your Docker Hub account credentials (see stub.example.yml):

meta: docker: email: EMAIL username: USERNAME password: PASSWORD

The run.sh will create the pipeline.yml and upload it to Concourse:

./41_*/run.sh stub.yml 

This will create a docker image <username>/hello-world on Docker Hub.

In the next tutorial section we will fetch and run the <username>/hello-world container image.