joshjordan / docker-flynn-cli

A self-contained Flynn CLI runner. Automatically configures cluster within docker so you can just pass in a Flynn CLI subcommand.

Description

Use as a self-contained Flynn CLI runner. Automatically configures cluster so you can just pass in a Flynn CLI command.

Usage

Set the appropriate env vars from the flynn cluster add command that Flynn gave you when you configured your cluster. These can also be found in your ~/.flynnrc file. Then, run the container with a flynn subcommand as the docker command.

Example

If your flynn cluster add command was flynn cluster add -p abc1234 default flynn.myhost.com xyz987, and you wanted to run flynn apps to get a list of your cluster's running apps, you'd do:

docker run -e 'PIN=abc1234' -e 'HOSTNAME=flynn.myhost.com' -e 'KEY=xyz987'  -ti joshjordan/flynn-cli 'apps'

Output:

Cluster "default" added and set as default.
ID                                    NAME
699772a1-95ef-4cda-b785-0d946de50c30  status
94fa8bd1-7838-45ea-8a10-891cbc2808b1  dashboard
d7ccbc5a-028c-4037-aa8f-8ed91584ea2c  taffy
c966571e-4453-4f52-90ad-457876850923  logaggregator
8fe44ac0-6090-4d12-ae01-b6a1d095a4b6  docker-receive
f78c1957-1602-40a9-90da-8126495df95a  gitreceive
75670359-04ad-4a63-88ca-eeadd9070f49  router
eb004e0e-d34b-4ffd-844e-6322641997cc  blobstore
d402628e-d7ea-42a5-b45e-73b60fb2337c  mongodb
b94aa40a-0293-47a4-adbe-a99b30334bdc  mariadb
da15c831-a31d-483a-b58c-a31b02dc45e2  redis
c1d8d0bb-efbc-40a9-9768-ea731e5503d2  discoverd
a6d4e7c6-f0e3-4b95-9aed-d9cad6691d40  flannel
e26eb92e-65e3-4b7f-9ec1-f246b99a744a  postgres
ec5c7c74-040c-408c-b6ed-4f4a5799a82e  controller

Scheduled tasks

You can use flynn-cli as an effective replacement for cron within a Flynn cluster. When paired with a scheduling framework (like AWS ECS Scheduled Tasks), you can execute a flynn run command easily:

docker run -e 'PIN=abc1234' -e 'HOSTNAME=flynn.myhost.com' -e 'KEY=xyz987'  -ti joshjordan/flynn-cli '-a myapp run scraper.sh'