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Why doesn't Pipelines cache the Docker image?

I'm new to Pipelines.

I'm building C++ projects in one Docker image from Docker Hub, which is 1GB. My bitbucket-pipeline.yml is something like:

```

image: whatever/whatever:latest

pipelines:
  custom:
     default:
       - step:
           script:
             - echo step1

       - step:
           script:
             - echo step2

        #many more steps

```

 

Every time the pipeline runs, at every step it spends 20-40 seconds pulling the whatever/whatever Docker image!

Is there a way to cache or reuse the same image? Is Atlassian actually downloading 1GB at every step? I thought I could use "caches: Docker" to keep the image around, but it turns that keyword is for pipelines that create/push Docker images.

I feel like I'm doing something wrong. I can't imagine Atlassian wanting to download 10GB every time I make a commit, just because I have 10 steps defined.

1 answer

1 accepted

1 vote
Answer accepted

@Fabregas4 Please have a look at this answer.

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