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OTP Docker

This project contains a docker recipe for deploying an Ubuntu instance with OpenTripPlanner installed. Additionaly it contains configuration to deploy the container to AWS Elastic Beanstalk.

Requirements

In order to use this repository, you need to have the AWS CLI and EB CLI installed. If you want to test the images locally, you also must install docker:

$ brew install awscli aws-elasticbeanstalk

Deploy the container to AWS EB

Open up the directory docker in your favourite text editor and change the following files according to your needs:

  • docker/Dockerfile: Change the OTP download url if needed and adapt the changes to the version number of the downloaded file.
  • docker/run.sh Change the version number of otp and also change the memory needed to run OTP for the region you want to deploy

You should now change your working directory to ./docker:

$ cd docker

To deploy a new OTP instance either create a new AWS EB Environment or clone an existing one first. To see which environments are available, type eb list.

Cloning an environment:

Select the desired environment to clone via eb use <ENVIRONMENT-NAME> and then type eb clone. You will be asked about the name, cname and other things about your new environment. Finally the environment will be created.

Create a new environment:

If you want to configure more things, create a new environment via eb init and eb create <ENVIRONMENT-NAME>.

Post creation checks:

After you either cloned or created a new environment, check that you are using the correct one:

$ eb list # lists all environments, the one in use is prefixed with a *
$ eb use <ENVIRONMENT-NAME> # if you need to switch the environment

Ready to deploy!

Now that your environment is set up, you can deploy your docker container running OTP:

$ eb deploy --staged

The --staged option lets you upload a new application, without having to commit your local changes to the git repository.

Memory Monitoring:

The new environment automatically sends instance performance values to AWS Cloudwatch (see the .ebextensions folder for more information on this).

What is left is to create an actual alarm for AWS Cloudwatch.

There are 3 small steps involved in this:

  1. Get the instance id of your instance: The command eb status -v prints the instance id to your console. You can copy it.

  2. Edit the file alarm-skeleton.json: You should probably rename the alarm, enter the instance id in the corresponding field and set the alarm action.

  3. Create the alarm via your terminal: Now that the alarm-skeleton.json is prepared, you can create the alarm via

    aws cloudwatch put-metric-alarm --cli-input-json "$(less alarm-skeleton.json)"
    

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