@mojaloop/central-services-stream

central-services-stream

Streaming library for central services

Usage

Kafka

Refer to documentation in src/kafka/readme.md

Manually installing Librdkafka lib dependency

You can optionally install Librdkafka.

Recommended that if you choose to install it manually, ensure that the version being installed matches the version in the Node-Rdkafka release notes. You are most likely better off (or if you have any doubts) using npm install to build the library natively.

Then configure the following env var before running npm install:

export BUILD_LIBRDKAFKA=0

Auditing Dependencies

We use audit-ci along with npm audit to check dependencies for node vulnerabilities, and keep track of resolved dependencies with an audit-ci.jsonc file.

To start a new resolution process, run:

npm run audit:fix

You can then check to see if the CI will pass based on the current dependencies with:

npm run audit:check

The audit-ci.jsonc contains any audit-exceptions that cannot be fixed to ensure that CircleCI will build correctly.

Automated Releases

As part of our CI/CD process, we use a combination of CircleCI, standard-version npm package and github-release CircleCI orb to automatically trigger our releases and image builds. This process essentially mimics a manual tag and release.

On a merge to master, CircleCI is configured to use the mojaloopci github account to push the latest generated CHANGELOG and package version number.

Once those changes are pushed, CircleCI will pull the updated master, tag and push a release triggering another subsequent build that also publishes a docker image.

Potential problems

• There is a case where the merge to master workflow will resolve successfully, triggering a release. Then that tagged release workflow subsequently failing due to the image scan, audit check, vulnerability check or other "live" checks.

  This will leave master without an associated published build. Fixes that require a new merge will essentially cause a skip in version number or require a clean up of the master branch to the commit before the CHANGELOG and bump.

  This may be resolved by relying solely on the previous checks of the merge to master workflow to assume that our tagged release is of sound quality. We are still mulling over this solution since catching bugs/vulnerabilities/etc earlier is a boon.

• It is unknown if a race condition might occur with multiple merges with master in quick succession, but this is a suspected edge case.