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Continues Integration / Delivery

Branches

Pull Requests

  • Each PR needs to be reviewed.
  • PR can be merged only after all tests pass and code is reviewed.

Continues Integration

  • for each PR we execute:
    • static code validation
    • Unit/Integration tests
  • We use pipeline in code approach and Jenkins as our main CI/CD server.
  • CI part of the pipeline (running tests for each PR) is defined in Jenkinsfile.ci file.
  • CI part is run on Hyperledger Jenkins, so it is public and open as every contributor needs to see results of the tests run for his or her PR.

Static Code Validation

  • We use flake8 for static code validation.
  • It's run against every PR. PR fails if there are some static code validation errors.
  • Not all checks are enabled (have a look at .flake8 file at the project root)
  • You can run static code validation locally:
    • Install flake8: pip install flake8
    • Run validation on the root folder of the project: flake8 .

Continues Delivery

  • CD part of the pipeline is defined in Jenkinsfile.cd file.
  • CD part is run on a private Jenkins server dealing with issuing and uploading new builds.

Builds

What artifacts are produced after each push

Use cases for artifacts

  • Pypi artifacts can be used for dev experiments, but not intended to be used for production.
  • Using deb packages is recommended way to be used for a test/production pool on Ubuntu.

Packaging

Supported platforms and OSes
  • Ubuntu 16.04 on x86_64
Build scripts

We use fpm for packaging python code into deb packages. Build scripts are placed in build-scripts folders:

We also pack some 3rd parties dependencies which are not presented in canonical ubuntu repositories:

Each build-scripts folder includes Readme.md. Please check them for more details.

Versioning

  • Please note, that we are using semver-like approach for versioning (major, minor, build) for each of the components.
  • Major and minor parts are set in the code (see __metadata__.py). They must be incremented for new releases manually from code if needed.
  • Build part is incremented with each build on Jenkins (so it always increases, but may be not sequentially)
  • Each dependency (including indy-plenum and indy-anoncreds) has a strict version (see setup.py)
  • If you install indy-node (either from pypi, or from deb package), the specified in setup.py version of indy-plenum is installed.
  • Master and Stable builds usually have different versions.
  • Differences in master and stable code:
    • setup.py:
      • dev suffix in project names and indy-plenum dependency in master; no suffixes in stable
      • different versions of indy-plenum dependency
    • different versions in migrations scripts

How to Create a Stable Release

  • Create a new branch based on stable in indy-plenum
  • Merge master branch into this new branch
  • Make sure that proper versions and names are used (without dev suffixes)
  • Raise a PR to indy-plenum's stable, and wait until code is reviewed and merged. So, a new release candidate of plenum is created.
  • Create a new branch based on stable in indy-node
  • Merge master branch into this new branch
  • Change indy-plenum's dependency version to the new one in indy-node's setup.py.
  • Make sure that proper versions and names are used (without dev suffixes)
  • Raise a PR to indy-node's stable, and wait until code is reviewed and merged. So, a new release candidate of indy-node is created.
  • QA needs to test this release candidate from https://repo.sovrin.org/deb xenial rc
  • QA approves the release candidate of indy-plenum.
  • QA approves the release candidate of indy-node. So, a new stable release is created.