generate bundles, apply them to EC2 instances
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Statika CLI (Command Line Interface)

This is a command line tool for launching EC2 instances with Statika bundles.


To install the tool you need to download the file and do

sbt @./

It should install the tool and display its version and help message


Assuming, that you have the bundle and the distribution containing it released, to apply this bundle you need several things:

  • Distribution fat-jar (i.e. which contains all it's dependencies) file;
  • Bundle and distribution fully-qualified object names (how to you refer to them in the scala code);
  • Credentials for launching an instance.

Now, let's take for example an existing bundle and see how we can apply it. So the object names are

  • distribution: ohnosequences.statika.distributions.AmazonLinux
  • bundle: ohnosequences.statika.Velvet

Getting distribution fat jar

When a distribution is released, a special fat-jar artifact is published. Distribution stores the address where it is published in it's metadata:

> ohnosequences.statika.distributions.AmazonLinux.metadata.artifactUrl

So, when you know this address, you can go to the bucket and download it. If you have AWS command line tools installed, you can do it with

aws s3 cp <this url> dist.jar

Now, let's assume that you have this fat jar saved in the dist.jar local file.

Alternatively, check out distribution's github releases page — it may also contain this jar attached to the release, so that you don't need to search for it's address.

Apply command

The last thing that we need is a file of format

accessKey = ...
secretKey = ...

with your credentials. Let's call it

Now you can just use apply command:

statika apply \
  --creds \
  --jar dist.jar \
  --dist ohnosequences.statika.distributions.AmazonLinux \
  --bundle ohnosequences.statika.Velvet

(you can write it in one line wihtout \ symbol).

Another alternative is to save options to a file apply-velvet.opts:

--jar dist.jar
--dist ohnosequences.statika.distributions.AmazonLinux
--bundle ohnosequences.statika.Velvet

and run

statika @apply-velvet.opts

This way is more convenient, because this opts file is reusable and you can prepare such files for every bundle you apply oftenly.

Other options

See statika apply --help for all possible options. For example, you can choose instance type and the keypair to access the instance later by ssh.

One important option is --profile: it should be an instance profile ARN, which corresponds to a role allowing this instance to access the S3 bucket with that distribution fat jar artifact. If you cannot use default role, ask your admin to create a new one.