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DC/OS Elastic service

This is the source repository for the DC/OS Elastic package.

Official documentation can be found in the service docs page.

Nightly integration test builds matrix

DC/OS 1.11 DC/OS 1.12 DC/OS 1.13 DC/OS Master
Open (not tested)
Permissive (not tested)
Strict

Development

The dcos-commons git submodule is set up via SSH. Please make sure you have that configured.

Also make sure your Docker daemon is running under a non-root user.

Cloning the repository

git clone --recurse-submodules git@github.com:mesosphere/dcos-elastic-service.git /path/to/dcos-elastic-service

All commands assume that you're in the project root directory.

cd /path/to/dcos-elastic-service

Running static code analyzers

Python

dcos-commons/tools/ci/steps/check_python_files.sh

Running automatic code formatters

Python

DOCKER_COMMAND='black frameworks' dcos-commons/run_container.sh elastic --project $(pwd)

config.json

DOCKER_COMMAND='
  ./tools/standardize_config_json.py
     --service-config-json frameworks/elastic/universe/config.json
     --sdk-tools-config frameworks/elastic/sdk-tools.json
' dcos-commons/run_container.sh elastic --project $(pwd)

Building package

First make sure you have a valid AWS session configured either in the form of:

  • ~/.aws/credentials file and exported AWS_PROFILE environment variable

or

  • exported AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY environment variables

If you work for Mesosphere, check out maws.

The following command should be run from your host. It will run a Docker container and build the package there:

DOCKER_COMMAND="frameworks/elastic/build.sh aws" dcos-commons/run_container.sh elastic --project $(pwd)

Running tests

First make sure you have a DC/OS cluster where your tests can be run on.

export CLUSTER_URL="http://your-dcos-cluster.com"

Optionally, export a stub Universe URL so that tests run against a particular stub version of the service.

export STUB_UNIVERSE_URL='https://universe-converter.mesosphere.com/transform?url=...'

All tests

The following command should be run from your host. It will run a Docker container and run all tests from there:

dcos-commons/test.sh elastic --project $(pwd)

Single test module

As before, the following command should be run from your host. It will run a Docker container and run the specific test module from there.

export PYTEST_ARGS='frameworks/elastic/tests/test_sanity.py'
dcos-commons/test.sh elastic --project $(pwd)

Single test

As before, the following command should be run from your host. It will run a Docker container and run the specific test module from there.

In the example below, the -k flag will match tests in all test modules for tests named test_endpoints. If you wish to only match tests in a single test module you'll need to set PYTEST_ARGS similar to the example above.

dcos-commons/test.sh elastic --project $(pwd) -k test_endpoints

Style guide

Opening pull requests

PR titles should be in imperative mood, useful, concise and follow the following format:

[DCOS-xxxxx] Add support for new thing.

In the example above a JIRA ticket is referenced with the [DCOS-xxxxx] tag. If for some reason the PR isn't related to a ticket, feel free to use "free-form" tags, ideally ones that were already used like [DOCS], [SDK], [MISC], [TOOLS] or even [SDK][TOOLS] for increased specificity.

PR descriptions should include additional context regarding what is achieved with the PR, why is it needed, rationale regarding decisions that were made, possibly with pointers to actual commits.

Example:

To make it possible for the new thing we had to:
- Prepare this other thing (5417f75)
- Clean up something else (ec4c78d)

This was required because of this and that.

Example output of thing:

    {
      "a": 2
    }


Please look into http://www.somewebsite.com/details-about-thing
for more context.

Merging pull requests

When all checks are green, a PR should be merged as a squash-commit, with its message being the PR title followed by the PR number. Example:

[DCOS-xxxxx] Add support for new thing. (#42)

The description for the squash-commit will ideally be the PR description verbatim. If the PR description was empty (it probably shouldn't have been!) the squash-commit description will by default be a list of all the commits in the PR's branch. That list should be cleaned up to only contain useful entries (no fix, formatting, changed foo, refactored bar), or rewritten so that additional context is added to the commit, like in the example above for PR descriptions.