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How to Cache Tools in Bitbucket Pipelines for Ubuntu 20.04 Builds

How to Cache Tools in Bitbucket Pipelines for Ubuntu 20.04 Builds

I'm using Bitbucket Pipelines and I have a question about it.

I want to build my repository on Ubuntu 20.04. The essential tools I need are as follows:

gcc 9, g++ 9
cmake
openjdk8, openjdk17, openjre17
ant

I am currently installing all the software each time I build using the following command:

apt-get update && apt-get install -y gcc-9 g++-9 cmake openjdk-8-jdk openjdk-17-jre openjdk-17-jdk ant

This is inefficient.

I want to know how to cache the tools I've installed once. How should I write my bitbucket-pipelines.yml?

Below is part of my yml file

image: atlassian/default-image:latest

pipelines:
  default:
    - step:
        name: Build on Ubuntu 20.04
        image: ubuntu:20.04
        script:
          - apt-get update && apt-get install -y gcc-9 g++-9 cmake openjdk-8-jdk openjdk-17-jre openjdk-17-jdk ant

2 answers

1 accepted

1 vote

Answer accepted

Hi @홍창기 and welcome to the community!

The recommended approach for your use case is to create a custom Docker image with the tools you need and use that as a build environment instead of ubuntu:20.04.

If you install Docker on your computer, you can build an image from a Dockerfile like the following:

FROM ubuntu:20.04
RUN apt-get update && apt-get install -y gcc-9 g++-9 cmake openjdk-8-jdk openjdk-17-jre openjdk-17-jdk ant

You can then create an account and a repo in Dockerhub and push the image you build to this repo. If the repo's name is e.g. myaccount/myimage:latest, then you can use that in your yml file's step instead of ubuntu:20.04.

It is not necessary to use Dockerhub, you could also use another Docker registry. We support public and private Docker images including those hosted on Docker Hub, AWS, GCP, Azure, and self-hosted registries accessible on the internet.

You can find more details here: