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Description

Eru is a stateless, flexible, production-ready cluster scheduler designed to easily integrate into existing workflows. Eru can run any containerized things in long or short time. This project is Eru Core. The Core use for resource allocation and manage containers lifetime.

Programming language: Go

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README

Eru

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Eru is a stateless, flexible, production-ready cluster scheduler designed to easily integrate into existing workflows. Eru can run any containerized things in long or short time. This project is Eru Core. The Core use for resource allocation and manage containers lifetime.

Testing

Run make test

Compile

  • Run make build if you want binary.
  • Run ./make-rpm if you want RPM for el7. However we use FPM for packing, so you have to prepare it first.

Developing

Run make deps for generating vendor dir.

Under macOS we have to install libgit2 manually, if you using Homebrew please install like this:

brew install libgit2
make deps

In linux you can reference our image's Dockerfile. Our server were running under CentOS 7, so if your server was different, something will not same.

On other hand, you can use our footstone image for testing and compiling.

GRPC

Generate golang & python 3 code

go get -u github.com/golang/protobuf/{proto,protoc-gen-go}
pip install -U grpcio-tools
make grpc

Run it

$ eru-core --config /etc/eru/core.yaml.sample

or

$ export ERU_CONFIG_PATH=/path/to/core.yaml
$ eru-core

Dockerized Core manually

Image: projecteru2/core

docker run -d \
  --name eru_core_$HOSTNAME \
  --net host \
  --restart always \
  -v <HOST_CONFIG_DIR_PATH>:/etc/eru \
  projecteru2/core \
  /usr/bin/eru-core

Build and Deploy by Eru itself

After we implemented bootstrap in eru2, now you can build and deploy eru with cli tool.

  1. Test source code and build image
<cli_execute_path> --name <image_name> http://bit.ly/EruCore

Make sure you can clone code. After the fresh image was named and tagged, it will be auto pushed to the remote registry which was defined in config file.

  1. Deploy core itself
<cli_execute_path> container deploy --pod <pod_name> [--node <node_name>] --entry core --network <network_name> --image <projecteru2/core>|<your_own_image> --file <core_config_yaml>:/core.yaml [--count <count_num>] [--cpu 0.3 | --mem 1024000000] http://bit.ly/EruCore

Now you will find core was started in nodes.