Retry temporary errors

[int128]

Feature Overview

We sometimes get a temporary error during download. For example,

time="2022-06-03T07:38:37Z" level=info msg="download and unarchive the package" aqua_version=1.9.0 env=linux/amd64 exe_path=/home/runner/.local/share/aquaproj-aqua/pkgs/github_release/github.com/kubernetes-sigs/kustomize/kustomize/v3.9.4/kustomize_v3.9.4_linux_amd64.tar.gz/kustomize package=kubernetes-sigs/kustomize package_name=kubernetes-sigs/kustomize package_version=kustomize/v3.9.4 program=aqua registry=standard
time="2022-06-03T07:38:38Z" level=fatal msg="aqua failed" aqua_version=1.9.0 env=linux/amd64 error="copy the file to the temporal file: stream error: stream ID 1; PROTOCOL_ERROR; received from peer" program=aqua

It would be nice to retry on temporary errors for better experience.

Why is the feature needed?

We need to rerun a job on a temporary error.

Does the feature include Breaking Changes?

No.

[suzuki-shunsuke]

Thank you for your proposal.
It looks reasonable.
Maybe we should retry the installation if the HTTP response code is greater equal than 500.

[suzuki-shunsuke]

• https://github.com/cenkalti/backoff
• https://github.com/lestrrat-go/backoff