#airship - December 2018 | Slack Archive

157 messages

Home of Airship ECS Modules ( https://github.com/blinkist/terraform-aws-airship-ecs-service / https://github.com/blinkist/terraform-aws-airship-ecs-cluster )

Archive: https://archive.sweetops.com/airship/

Nov 2018

December 2018

Jan 2019

Maarten van der Hoefover 7 years ago

Documenting is close to folding laundry in my happiness index.

Erik Osterman (Cloud Posse)over 7 years ago(edited)

yea, it’s like pulling teeth

Maarten van der Hoefover 7 years ago

haha

Maarten van der Hoefover 7 years ago

Pulling teeth is short and intense, documenting is more like a week long back pain.

Erik Osterman (Cloud Posse)over 7 years ago

lol

Erik Osterman (Cloud Posse)over 7 years ago

good point

Maarten van der Hoefover 7 years ago

Hi Everyone, I've started documenting the ecs cluster module here: https://airship.tf/guide/ecs_cluster/. For 'better' English I'll find someone to take a look, but would love to have input from you guys on the structure itself.

Erik Osterman (Cloud Posse)over 7 years ago

wow maarten! looks great

Maarten van der Hoefover 7 years ago

Vuerocks 🙂

Maarten van der Hoefover 7 years ago

The codeblocks are currently json, very soon hcl 🙂 https://github.com/PrismJS/prism/pull/1594

Erik Osterman (Cloud Posse)over 7 years ago

i think you definitely made the right choice for this project

Erik Osterman (Cloud Posse)over 7 years ago

going to take a closer look at some of the UI/UX elements and have our guy incorporate that into our docs

Maarten van der Hoefover 7 years ago

nice ::: warning

erikover 7 years ago

Erik Osterman (Cloud Posse)over 7 years ago

the writing on this page is exceptional

Erik Osterman (Cloud Posse)over 7 years ago

@John Shiple you might want to talk with @Maarten van der Hoef about airship for what you guys are doing. It's a great turnkey solution for ECS used by Blinkist, among others.

John Shipleover 7 years ago

@John Shiple has joined the channel

Maarten van der Hoefover 7 years ago

Hi @John Shiple! I'm afk very soon, but happy to talk any time.

Erik Osterman (Cloud Posse)over 7 years ago

Basically they’ve built a very easy turnkey solution for using ECS with Terraform. Cloud Posse has our own modules, but @Maarten van der Hoef is going above and beyond with airship.

Erik Osterman (Cloud Posse)over 7 years ago

He’s specifically trying to make it easier for smaller startups to get up and running quickly

i5okieover 7 years ago

@i5okie has joined the channel

i5okieover 7 years ago

moved here from general. im trying to implement and automagical experience for our devs to create review apps, after we move from heroku to aws.

i5okieover 7 years ago

I’m imagining it being almost like circle-ci. by that i mean have “service images” like postgresdb, and other normal images, like ruby-2.3-8-node-browsers kind.
most likely only have a single ecs instance, or cluster of 1, and devs would launch review apps from command line (i’m working on a gem, have a bunch of heroku cli - like features already implemented, this would be next). to either deploy from PR, or from local staged files.

i5okieover 7 years ago

came here for some inspiration / suggestions / opinions

i5okieover 7 years ago

looks like traefik will be pretty important

joshmyersover 7 years ago

@joshmyers has joined the channel

joshmyersover 7 years ago(edited)

@i5okie Is this an unsolved problems that needs code written or is there something you could take off the shelf?

joshmyersover 7 years ago

Traefik is 👌

joshmyersover 7 years ago

Airship looks nice!

i5okieover 7 years ago

yeah i was looking at airship too.

i5okieover 7 years ago

i still don’t really understand how airship can help

Maarten van der Hoefover 7 years ago

Hu @i5okie I'm not really online now, but tomorrow I'll have plenty of time to show you around what airship is about. I just started documenting ( work in progress ) https://airship.tf . Its guide is only covering the cluster at the moment, the ecs service module which is 99% of the logic isn't covered yet, just a little bit in the (unfinished) getting started section. You can take a look here: github.com/blinkist/terraform-aws-airship-ecs-service . Maybe you can explain your use-case a bit and let's discuss tomorrow !

i5okieover 7 years ago(edited)

Hmm if i were to use airship, which looks great..
Looking at your guide (great work so far!!!)
I think in my use case I’ll need to replace nginx with Traefik

i5okieover 7 years ago

i think that’d be a killer combo

joshmyersover 7 years ago

Cunning use of the data lambda for bootstrap

joshmyersover 7 years ago

@i5okie Have done similar with Traefik and the ECS backend. Worked nicely

i5okieover 7 years ago(edited)

josh, the only ecs+traefik tutorials I’ve found out there so far. are somewhat useless / not well documented.

i5okieover 7 years ago

I’m trying to hack together the airship moduel some of the cloud-posse modules, into a nice ecs stack.
then try to figure out how to make a service module to bring-up a traefik service.. one thing at a time i guess 😄

i5okieover 7 years ago

So is the plan with Airship to bring it into Cloud-Posse family?

Erik Osterman (Cloud Posse)over 7 years ago(edited)

For the time being 😃, I think this is an independent project. But honestly, we just want people doing cool stuff to be part of the community.

Erik Osterman (Cloud Posse)over 7 years ago

I totally endorse what @Maarten van der Hoef is building with airship + blinkist

Erik Osterman (Cloud Posse)over 7 years ago

I know @Jamie Nelson (BitFlight) is contributing to it among others

i5okieover 7 years ago

i like that 🙂

Maarten van der Hoefover 7 years ago

@i5okie I'd love to know how you see your setup working. In my documentation I will have to work-out a few common use-cases. So I'd love to hear yours.

i5okieover 7 years ago

Im thinking to just use terraform to document the infrastructure for the ecs.
So I’d like to have a small ecs cluster, and some docker images in ecr. like our usual ruby image, then a postgresql / redis service..
I’m still a bit new to this, so im not sure if ruby would be a task or not?

right now we’re primarily on heroku, and have review apps that can get spun up from github PRs.
So in my case, I’d want to write some code that devs would run in their command line to spin up a ‘review app’ (ruby + postgresql + redis images) responding to <app>-<hash>.mydomain.com as per traefik.. then when QA is done verifying or whatever, we can kill the review app afterwords.

Maarten van der Hoefover 7 years ago

Hi @i5okie I've done something similar with Airship, but less dynamic than your idea. For a QA environment I've created multiple services of the same application, let's call it app running on the same ECS cluster. The 5 different services were preconfigured by terraform and had planet names, earth, mars, uranus etc.
At PR, or however the deployment was configured, the developer creates a branch named app-mars-[JIRA-TICKET] and the application was then deployed to the app-mars ECS Service.
Route53 and a single Application Load Balancer takes care of routing the traffic to the Planet QA ECS Service. A who-is-blocking-what-service-app on Slack takes care of not having developers deploying at the same planet at the time, what never was a problem really.

i5okieover 7 years ago

yeah that kind of sounds similar.
So i guess in my case, the LB would point to traefik. then traefik would point to one of the deployed apps..

Maarten van der Hoefover 7 years ago

What is the need for traefik here, if the ALB already does the routing ?

i5okieover 7 years ago

auto discovery i guess

i5okieover 7 years ago

rather uhm reverse proxy

i5okieover 7 years ago(edited)

i have wildcard *.apps.mydomain.com pointing to traefik. so anything i type in myapp-v3344.apps.mydomain.com traefik would then say ah okay this goes here..

i5okieover 7 years ago

kinda like this: https://netbears.com/blog/traefik-cluster-ecs/

i5okieover 7 years ago

except someone who wrote this has incomplete documentation and i can’t get that to work.

i5okieover 7 years ago

so im trying to do basically the same, but starting with terraform, the airship module, and going from there.

Maarten van der Hoefover 7 years ago

I'm seeing where you're getting at now. It's a little different idea from what I'm used to and that makes it interesting. The question is how you want to deploy your others services then. Running terraform at PR ? Or are you ok with pre-configuring a set of services to which you can deploy after.

i5okieover 7 years ago

so lets forget about PRs for now

i5okieover 7 years ago

i want to have this in terraform so its documented, in case we need to tear down the stack and bring it up in the future. or on another aws account.. etc.

i5okieover 7 years ago

so for other services.. I was thinking if it’d be possible to do something like how CircleCi config file has the main -image ruby:2.5 for example, and then below you specify -image postgresql:9.6-alpine for example..

so i think that when ‘deploy command’ is triggered, i’l have to spin up the ruby image, and the postgresql/ redis images and then associate those three together. (this probably has nothing to do with terraform at this point)

Maarten van der Hoefover 7 years ago

I've used RDS in a shared tenancy model for that as production is also using RDS and I like to have production more or less in sync with everything else

i5okieover 7 years ago

what i’ve described above would be insane for production. its for ephemeral apps with like short life-spans of a couple minutes to a couple days tops.

i5okieover 7 years ago

it’s quite a challenge lol. i’ve never done anything like this before

Maarten van der Hoefover 7 years ago

Let me know if if you struggle with something on the way! The mindset behind the airship modules is slightly different from your use-case but we're engineers, so we can make everything work 🙂

i5okieover 7 years ago

yep, i have to run out for a bit. but i have a question about your config example

i5okieover 7 years ago

tty soon 🙂

Maarten van der Hoefover 7 years ago

sure, just post!

Jamie Nelson (BitFlight)over 7 years ago

I use airship and cloudposse combined. I like to add the null_label into airship, so i can cascade the conststant labeling and tagging down through all the modules via context.

Jamie Nelson (BitFlight)over 7 years ago

I have used Traefik, and it is easy to add into the mix

Jamie Nelson (BitFlight)over 7 years ago

IF I get a moment, i'll build up an example

Ryan Rykeover 7 years ago

@Ryan Ryke has joined the channel

rssover 7 years ago

0.8.4: Task scheduler fix (#27)
What

Rewrite of the javascript Task scheduler, it wasn't working properly with AWSVPC networking.
Limited the name of the jobs to 32 chars.
Fixed a bug which effected ecs services without a load balancer as the condition was still set to match NONE instead of none

i5okieover 7 years ago

I fell off the earth.. looks like my project has been scrapped for the foreseeable future ;(. But now I’ll be playing with Airship the way it was designed haha

i5okieover 7 years ago

The question I had was…

vpc_security_group_ids = ["${module.ecs_instance_sg.this_security_group_id}","${module.admin_sg.this_security_group_id}"]

What is the intent with these SGs? Or what are the suggested rules?

Maarten van der Hoefover 7 years ago(edited)

The Autoscaling Group of instances needs to allow incoming traffic from the Load Balancer. I'm describing it here :https://airship.tf/guide/ecs_cluster/#security-groups

Erik Osterman (Cloud Posse)over 7 years ago

have you taken a look at the new blue/green deployment feature?

Maarten van der Hoefabout 7 years ago

How to spend a weekend. My start on the ECS service documentation.. https://airship.tf/guide/ecs_service/
Would love to have input on anything guys!

erikabout 7 years ago

Erik Osterman (Cloud Posse)about 7 years ago

love these diagrams 😃

erikabout 7 years ago

Maarten van der Hoefabout 7 years ago

Love them too 🙂 If you have time please tell me what you don't like!

Erik Osterman (Cloud Posse)about 7 years ago

this is the most documented terraform module on the internet 😃

Maarten van der Hoefabout 7 years ago

I'll have to wear sunglasses outside now.

Erik Osterman (Cloud Posse)about 7 years ago

hahah

Stevenabout 7 years ago

@Steven has joined the channel

Maarten van der Hoefabout 7 years ago

@Jamie Nelson (BitFlight) https://github.com/blinkist/terraform-aws-airship-ecs-service/blob/service_discovery/modules/ecs_service/main.tf With SRV record as DNS type the Service doesn't get registered, do you have any idea ?

Jamie Nelson (BitFlight)about 7 years ago

Do you have an example set up using it currently?

Jamie Nelson (BitFlight)about 7 years ago

that you can make a change to and test?

Maarten van der Hoefabout 7 years ago(edited)


  resource "aws_service_discovery_private_dns_namespace" "example" {
    name        = "example.terraform.local"
    description = "example"
    vpc         = "${module.vpc.vpc_id}"
  }

module {
 enable_service_discovery = true

    service_discovery_namespace_id = "${aws_service_discovery_private_dns_namespace.example.id}"
}

Maarten van der Hoefabout 7 years ago

Jamie Nelson (BitFlight)about 7 years ago

in this bit: https://github.com/blinkist/terraform-aws-airship-ecs-service/blob/8688cc50e0e5a6adfcacba7ddeb75e40c4911f9a/modules/ecs_service/main.tf#L214

Jamie Nelson (BitFlight)about 7 years ago

can you comment out the port line

Maarten van der Hoefabout 7 years ago

Isn't the port needed for SRV ?

Jamie Nelson (BitFlight)about 7 years ago

# port = "${var.container_port}"

Jamie Nelson (BitFlight)about 7 years ago

No. I've just read through my code and my collegues code where we ahve used srv records.

Jamie Nelson (BitFlight)about 7 years ago

and never actually added the port value tehre

Jamie Nelson (BitFlight)about 7 years ago

I just want to see if that is doing anything funny

Jamie Nelson (BitFlight)about 7 years ago

even though it is mentioned in the tf documentation

Jamie Nelson (BitFlight)about 7 years ago

https://www.terraform.io/docs/providers/aws/r/ecs_service.html#port

Jamie Nelson (BitFlight)about 7 years ago

So it should work. I have also been reviewing the api https://docs.aws.amazon.com/cli/latest/reference/servicediscovery/create-service.html

Maarten van der Hoefabout 7 years ago

The Service Discovery instance could not be registered.

Maarten van der Hoefabout 7 years ago

Task comes up, is healthy

Jamie Nelson (BitFlight)about 7 years ago

But is it working with A records?

Maarten van der Hoefabout 7 years ago

then gets killed

Maarten van der Hoefabout 7 years ago

yes

Maarten van der Hoefabout 7 years ago

can try again

Maarten van der Hoefabout 7 years ago

maybe MULTIVALUE routing with SRV is the problem ?

Jamie Nelson (BitFlight)about 7 years ago

no, it can do it

Jamie Nelson (BitFlight)about 7 years ago

But try toggling that... andthen also try commenting out


  # Needed for private namespaces
  health_check_custom_config {
    failure_threshold = "${var.service_discovery_healthcheck_custom_failure_threshold}"
  }

Jamie Nelson (BitFlight)about 7 years ago

Since it may also be the helth check modifiers that do it

Maarten van der Hoefabout 7 years ago

ok, now also have the same with A records, not sure what changed then.

Jamie Nelson (BitFlight)about 7 years ago

ok good. At least we know its not srv now

Jamie Nelson (BitFlight)about 7 years ago

You didn't accedentally create a terraform.local route53 zone did you?

Jamie Nelson (BitFlight)about 7 years ago(edited)

as well as the example.terraform.local zone

Maarten van der Hoefabout 7 years ago

no, they make it

Maarten van der Hoefabout 7 years ago

'they' 🙂

Jamie Nelson (BitFlight)about 7 years ago

the borg

Maarten van der Hoefabout 7 years ago

hehe

Maarten van der Hoefabout 7 years ago

no change

Jamie Nelson (BitFlight)about 7 years ago

Can you do a destroy and apply?

Maarten van der Hoefabout 7 years ago

just the service or also the namespace ?

Jamie Nelson (BitFlight)about 7 years ago

namespace too

Jamie Nelson (BitFlight)about 7 years ago

if you can easily do it

Jamie Nelson (BitFlight)about 7 years ago

Also, what network mode are you using?

Jamie Nelson (BitFlight)about 7 years ago

awsvpc? or host/bridge

Maarten van der Hoefabout 7 years ago

awsvpc

Maarten van der Hoefabout 7 years ago

same shit, i give up for now

Maarten van der Hoefabout 7 years ago

@Jamie Nelson (BitFlight) @jonboulle If you want to have another avatar or introduction next to your name, let me know 🙂

Also, if you can write better than me, let me know 🙂

https://airship.tf/introduction/

niekabout 7 years ago

@niek has joined the channel

Maarten van der Hoefabout 7 years ago

@niek is also an author of ECS modules, happy to have you here 🎉

niekabout 7 years ago

@Maarten van der Hoef thx

rssabout 7 years ago

0.8.5: Changed the lambda to be dependent of the policy which belongs to the…
… (#30)
lambda lookup policy dependency fix

Erik Osterman (Cloud Posse)about 7 years ago

welcome @niek!

ulichabout 7 years ago

@ulich has joined the channel

ulichabout 7 years ago

Hi everyone. First, thanks for your ECS terraform modules! I was following the instructions https://airship.tf/getting_started/ to set up a fargate cluster but i am getting 6 value of 'count' cannot be computed errors as soon as I add the ecs_service module:


* module.ecs_service_nginx.module.alb_handling.aws_lb_listener_rule.host_based_routing_ssl_custom_listen_host: aws_lb_listener_rule.host_based_routing_ssl_custom_listen_host: value of 'count' cannot be computed
* module.ecs_service_nginx.module.alb_handling.aws_lb_listener_rule.host_based_routing_custom_listen_host: aws_lb_listener_rule.host_based_routing_custom_listen_host: value of 'count' cannot be computed
* module.ecs_service_nginx.module.alb_handling.aws_lb_listener_rule.host_based_routing_ssl_custom_listen_host_cognito_auth: aws_lb_listener_rule.host_based_routing_ssl_custom_listen_host_cognito_auth: value of 'count' cannot be computed
* module.ecs_service_nginx.module.alb_handling.aws_route53_record.record_alias_a: aws_route53_record.record_alias_a: value of 'count' cannot be computed
* module.ecs_service_nginx.module.alb_handling.aws_lb_listener_rule.host_based_routing_custom_listen_host_redirect_to_https: aws_lb_listener_rule.host_based_routing_custom_listen_host_redirect_to_https: value of 'count' cannot be computed
* module.ecs_service_nginx.module.alb_handling.aws_route53_record.record: aws_route53_record.record: value of 'count' cannot be computed

I am using terraform 0.11.11 and I was able to provision all resources, once I add the ecs_service module it fails

Maarten van der Hoefabout 7 years ago

Hi @ulich thnks, That's a lot of errors, and they don't make much sense to me. Could you post a GIST of your sample code & terraform plan. Tomorrow I have some time, but I'm traveling as well.

joshmyersabout 7 years ago

@Maarten van der Hoef Airship in DevOps weekly, nice!

Maarten van der Hoefabout 7 years ago

Oh cool, I'm not even subscribed, do you want to fwd that to me ?

Maarten van der Hoefabout 7 years ago

let's see if I can get it if I subscribe now

joshmyersabout 7 years ago

https://www.devopsweekly.com

Maarten van der Hoefabout 7 years ago

I subscribed but not getting the old one I think, can't find any active archives.

Maarten van der Hoefabout 7 years ago

Close to finishing service discovery, @Jamie Nelson (BitFlight) do you have time to take a look ? branch:service_discovery


  service_discovery_enabled = true

  service_discovery_properties {
    namespace_id                         = "${aws_service_discovery_private_dns_namespace.test.id}"
    dns_ttl                              = "60"
    dns_type                             = "A"
    routing_policy                       = "MULTIVALUE"
    healthcheck_custom_failure_threshold = "1"
  }

Jamie Nelson (BitFlight)about 7 years ago

Hi merry Xmas - did you manage to fix the weird issue with it?

Maarten van der Hoefabout 7 years ago

merry xmas!

Maarten van der Hoefabout 7 years ago

yes, i don't have it anymore, also I found a way to disable container_port now for A type records but setting it to false .. 🙂

Jamie Nelson (BitFlight)about 7 years ago

Maarten van der Hoefabout 7 years ago

https://github.com/blinkist/terraform-aws-airship-ecs-service/blob/999b5034fcc3f8d81f279677b62b9d2c06464590/modules/ecs_service/main.tf#L169

Jamie Nelson (BitFlight)about 7 years ago

Ah good. I can’t do the pr right now as I’m out of my hotel. But I can within 24 hours!

Maarten van der Hoefabout 7 years ago

I'm at schiphol 🙂 this video is loading very slowly

Maarten van der Hoefabout 7 years ago

haha

Maarten van der Hoefabout 7 years ago

nice one

Jamie Nelson (BitFlight)about 7 years ago

Reviewed the changes. There is one instance of var.tags when it should be local.tags

Jamie Nelson (BitFlight)about 7 years ago

Apart from that, approved!

rssabout 7 years ago

0.8.6: Service discovery (#28)
Added service discovery..
service_discovery_enabled = true
service_discovery_properties {
namespace_id = "${aws_service_discovery_private_dns_namespace.test.id}"
dns_ttl = "60"
dns_type = "A"
routing_policy = "MULTIVALUE"
healthcheck_custom_failure_threshold = "1"
}

Maarten van der Hoefabout 7 years ago

Next stop, Traefik 🙂

Jesse Byeabout 7 years ago

@Jesse Bye has joined the channel

tweetyixabout 7 years ago

@tweetyix has joined the channel

Maarten van der Hoefabout 7 years ago

Welcome aboard @Jesse Bye and @tweetyix! I'm off for new years partying in Belgrade until the 2nd of January, most likely afk. If there's anything I can help you with, let me know and I'll get back to you when I can.

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