I have Java Spring web service project on EC2

I tried writing a buildspec.yml for it. However the AWS CodeBuild service is not giving successful results. In the install phase itself, it tells apt-get and yum command not found. The problem is that both yum and apt-get are not being detected. However the exemplary file in the docs is using apt-get to in the install phase. How can I make it work?

This is my buildspec file.

I am not able to figure it out... why does it fail for both yum and apt-get?

These are the logs of the build

  • 6
    Both of your screenshot shows only apt-get in error... which makes sense if it's running on a RH based distribution. It's unclear what makes you think somethign with yum fail. For the future, please avoid screenshots of file content, it's harder to read and impossible to test and validate (no copy/paste possible)
    – Tensibai
    Jun 12, 2017 at 11:53
  • 1
    Did you already try putting a "-y" for your apt-get commands? Jul 3, 2017 at 13:54
  • 1
    @subinmathew Here it's apt-get update which is failing, it doesn't have a -y switch (it's ignored if present) as it never ask anything to the user.
    – Tensibai
    Jul 3, 2017 at 14:47

1 Answer 1


Few ideas to help you

  1. When you define a "CodeBuild" project, you can specify which base image it will use to execute your commands. The one you are using is not Ubuntu yet you are trying apt-get. Try a different base image.

  2. Provide us with a better log stream.

Exporting Logs from CloudWatch

I found that the easiest way is to export logs through command-line:

  • click on 'View Logs' link, to find out your Log Group and Log Stream
  • install "awscli" and "jq"

Run substituting your log-group-name and -log-stream-name:

aws logs get-log-events --log-group-name /aws/codebuild/Dumper  \
    --log-stream-name 0bd74b8c-74b9-4f9b-b275-167b45901aa3 | \
    jq '.events[].message' -r | grep -v '^$'

This should give you the output, which you can include in the question.

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