#random - March 2019 | Slack Archive

187 messages

A place for non-work-related flimflam, faffing, hodge-podge or jibber-jabber you’d prefer to keep out of more focused work-related channels.
Archive: https://archive.sweetops.com/random/

Feb 2019

March 2019

Apr 2019

Andrew Jeffreeabout 7 years ago

I bought one https://productionis.dev

sarkisabout 7 years ago(edited)

Curious anyone here made a pixelbook their everyday driver? Given crostini and debian available - don't see what other blockers there may be from doing so 🤔

Dave Yuabout 7 years ago

@sarkis i’ve been thinking about that also. it’s good enough for kelsey hightower, at least https://twitter.com/kelseyhightower/status/1097961280990720000

Maarten van der Hoefabout 7 years ago

https://www.elastic.co/blog/elastic-cloud-incident-report-feburary-4-2019

Erik Osterman (Cloud Posse)about 7 years ago

https://blog.digitalocean.com/introducing-digitalocean-marketplace/

Ryan Smithabout 7 years ago

https://eng.uber.com/introducing-kraken/

Gonzalo Peciabout 7 years ago

FirstWorldProblems

Nikola Velkovskiabout 7 years ago

https://www.youtube.com/watch?time_continue=7&v=kDsDGX-8KXo

Erik Osterman (Cloud Posse)about 7 years ago

https://www.nginx.com/blog/nginx-joins-f5/

Nikola Velkovskiabout 7 years ago

🤔

Richy de la cuadraabout 7 years ago

Any body knows how to Connect two monitors in a MacBook air?

Alex Siegmanabout 7 years ago

We use some of these at work: https://www.elgato.com/en/dock/thunderbolt-3

lorenabout 7 years ago

nice

Richy de la cuadraabout 7 years ago

it’s too expensive :C

Valter Henriqueabout 7 years ago

@Richy de la cuadra I've used this in my previous company and it worked really well!
https://www.youtube.com/watch?v=t2zA2gOeT8E

Richy de la cuadraabout 7 years ago

perfect!

Milan Dasekabout 7 years ago

Hi, guys can I ask for some guidance with https://github.com/cloudposse/prometheus-to-cloudwatch ?

I am looking for some "best practice" what and how it should be monitored / alarmed inside CloudWatch

for instance I am running EKS and have some limit of pods on each node and I am looking to get % of node occupancy

it seems easy like
sum(kube_pod_status_phase) / sum(kube_node_status_allocatable_pods) * 100 in prometheus
but I have no idea how can I do this in CW and have alarm on top of that
because it seems that CW cannot do this https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/using-metric-math.html
without having metrics connected to the "graphed metrics" and even if I do, there is a limit of 10 metrics underlying each alarm

Andriy Knysh (Cloud Posse)about 7 years ago

@Milan Dasek prometheus-to-cloudwatch will scrape any Prometheus endpoint you point it to

Andriy Knysh (Cloud Posse)about 7 years ago

it’s the job of the endpoint to expose the required metrics

Andriy Knysh (Cloud Posse)about 7 years ago

in the example we use <https://github.com/helm/charts/tree/master/stable/kube-state-metrics>, take a look if it provides the metrics you want to see

Andriy Knysh (Cloud Posse)about 7 years ago

https://github.com/kubernetes/kube-state-metrics

Andriy Knysh (Cloud Posse)about 7 years ago

https://github.com/cloudposse/prometheus-to-cloudwatch by itself does not create nor expose any metrics

Felipe Ribeiroabout 7 years ago

Hi all, I’ve been researched about load test tools. Do you know any open source tools able to extract important metrics for a good analysis and report ?

Erik Osterman (Cloud Posse)about 7 years ago

https://github.com/cloudposse/load-testing/blob/master/README.md

Erik Osterman (Cloud Posse)about 7 years ago

This is our strategy

Felipe Ribeiroabout 7 years ago

My intention is to study the performance of AWS Cloudfront and your bahavior across regions.

Erik Osterman (Cloud Posse)about 7 years ago

Sounds like that is better done using RUM

Felipe Ribeiroabout 7 years ago

Awesome @Erik Osterman (Cloud Posse)!

Erik Osterman (Cloud Posse)about 7 years ago

https://en.wikipedia.org/wiki/Real_user_monitoring

Felipe Ribeiroabout 7 years ago(edited)

Yeah man. An alternative open source do you know some like ?

Felipe Ribeiroabout 7 years ago

the main tools about are private.

Erik Osterman (Cloud Posse)about 7 years ago

I haven’t used one that is open source (Pingdom, Datadog and new relic offer it as a service )

Erik Osterman (Cloud Posse)about 7 years ago

That said this might get you on your way: https://github.hubspot.com/bucky/

Felipe Ribeiroabout 7 years ago

yeah.. great !

Erik Osterman (Cloud Posse)about 7 years ago

Now this is not for load testing per say, but what it will tell you is what your users are actually experiencing

Erik Osterman (Cloud Posse)about 7 years ago

Load testing a CDN is kind of pointless

Erik Osterman (Cloud Posse)about 7 years ago

(Unless you have access to a bot net!)

Felipe Ribeiroabout 7 years ago

lol.. It is not the point .. 🙂

Felipe Ribeiroabout 7 years ago

A CDN is a resource as another . I understand that the CMP wants to guarantee your own SLA.

Felipe Ribeiroabout 7 years ago

I want to study the flow when these resources are topping. you got it ?

Felipe Ribeiroabout 7 years ago

Maybe not. But ok !

Felipe Ribeiroabout 7 years ago

lol

Felipe Ribeiroabout 7 years ago

Thanks for your help!

Erik Osterman (Cloud Posse)about 7 years ago

Report back what you find!

Felipe Ribeiroabout 7 years ago

Sure !

Gonzalo Peciabout 7 years ago

https://docsify.js.org

Gonzalo Peciabout 7 years ago

like GitBooks but free

Dave Yuabout 7 years ago

@Felipe Ribeiro https://www.sitespeed.io/ is a great tool for testing web page performance, including measuring the requests from CDNs, if that’s what you’re after

Andriy Knysh (Cloud Posse)about 7 years ago

https://cloud.google.com/blog/products/compute/calculating-31-4-trillion-digits-of-archimedes-constant-on-google-cloud

Andriy Knysh (Cloud Posse)about 7 years ago

Google have gained a Guinness World Record with this effort that took 2,795 node days of computation time and 17 PB of disk IO. As an interesting aside, Corey Quinn calculates it would have cost about $226k on GCP versus $180K on AWS

i5okieabout 7 years ago

man i don’t even know where else to talk about this.
I’m pushing heroku logs to graylog which goes into elasticsearch.
using graylog’s geo mapping plugin. but the _geolocation field a string. its a geo_point put of string type.
So in Graylog I can create a map graph.

well we’re using grafana. and worldmap plugin in grafana needs geo_point to be of geo_point type in elasticsearch.
argggh this is so annoying lol

Nikola Velkovskiabout 7 years ago(edited)

you may already know this but logstash might help you, although you'll introduce some complexity but if it's only for that field you might want to check it out.

Alexander Tolstikovabout 7 years ago

Some new foundation:

https://www.linuxfoundation.org/press-release/2019/03/the-linux-foundation-announces-new-foundation-to-support-continuous-delivery-collaboration/

https://cd.foundation/

https://hub.packtpub.com/google-to-be-the-founding-member-of-cdf-continuous-delivery-foundation/

https://github.com/tektoncd/pipeline

Opinions? 😄

erikabout 7 years ago

Erik Osterman (Cloud Posse)about 7 years ago

Who knew it was that expensive to operate the infrastructure of a popular ride hailing app? :-)

Andriy Knysh (Cloud Posse)about 7 years ago

probably not optimized because of too many resources to manage 🙂

erikabout 7 years ago

Erik Osterman (Cloud Posse)about 7 years ago

https://blog.jessfraz.com/post/defining-a-distinguished-engineer/

Erik Osterman (Cloud Posse)about 7 years ago

https://en.m.wikipedia.org/wiki/HTTP_451

chrismabout 7 years ago

Nah its been in use a while; the RFC took the usual years to filter into place

chrismabout 7 years ago

some isps use it as part of their expected role in blocking "child" nasties; which of course showed they could mass block ips and was quickly abused by copyright holders to block torrent sites

Erik Osterman (Cloud Posse)about 7 years ago

https://landscape.cncf.io/

Erik Osterman (Cloud Posse)about 7 years ago

awesome visualization of the cloud landscape

erikabout 7 years ago

Erik Osterman (Cloud Posse)about 7 years ago

@Igor Rodionov ☝️

Erik Osterman (Cloud Posse)about 7 years ago

whats the state of the art in terms of “dotfile managers”

Erik Osterman (Cloud Posse)about 7 years ago

https://github.com/TheLocehiliosan/yadm

Erik Osterman (Cloud Posse)about 7 years ago

anything better than yadm?

Erik Osterman (Cloud Posse)about 7 years ago

kind’a wish there was a popular one in go - single installable binary

Erik Osterman (Cloud Posse)about 7 years ago

https://nakedsecurity.sophos.com/2019/03/22/sacked-it-guy-annihilates-23-of-his-ex-employers-aws-servers/

Erik Osterman (Cloud Posse)about 7 years ago

https://matthias-endler.de/2017/makefiles/

joshmyersabout 7 years ago

@Milan Dasek late to the party but look at aggregation rules for precalculating and exposing a metric

joshmyersabout 7 years ago

https://prometheus.io/docs/practices/rules/#examples

Nikola Velkovskiabout 7 years ago

https://stevenpressfield.com/2009/10/writing-wednesdays-2-the-most-important-writing-lession-i-ever-learned/

Nikola Velkovskiabout 7 years ago

When you, the student writer, understand that nobody wants to read your shit, you develop empathy.

Erik Osterman (Cloud Posse)about 7 years ago

Lol

erikabout 7 years ago

ldleworkabout 7 years ago

What is knative?

Alex Siegmanabout 7 years ago(edited)

Anyone here familiar with Hashicorp Consul? I can't help but feel I'm doing something pretty wrong. I've got an autoscale group with 3 instances in it, each running the consul:1.4.4 docker container, but they won't bootstrap properly. once all three are up, if i restart the docker containers, they start to work. it's like the first instance starts up and doesn't find the other two, and the -retry-join option with aws discovery doesn't keep looking for new instances with the tag. Do I need to manually wait for at least 3 instances to be up before I start consul up on each of these instances?

Nikola Velkovskiabout 7 years ago(edited)

Hi Alex, what does docker logs says for the consul containers?

Nikola Velkovskiabout 7 years ago

Also which Os are you using and how do you bootstrap them ?

Nikola Velkovskiabout 7 years ago

It's a long shot but maybe the bootstrap script runs before the network is up ?

Alex Siegmanabout 7 years ago

So, the instances all show some combination of this:

    2019/03/27 15:33:22 [INFO] agent: Discovered LAN servers: 172.20.44.160 172.20.46.61
    2019/03/27 15:33:22 [INFO] agent: (LAN) joining: [172.20.44.160 172.20.46.61]
    2019/03/27 15:33:29 [ERR] agent: failed to sync remote state: No cluster leader
    2019/03/27 15:33:30 [WARN] raft: no known peers, aborting election
    2019/03/27 15:33:32 [INFO] agent: (LAN) joined: 1 Err: <nil>
    2019/03/27 15:33:32 [INFO] agent: Join LAN completed. Synced with 1 initial agents

Alex Siegmanabout 7 years ago

And then it will fail with just a lot of

    2019/03/27 15:35:07 [ERR] agent: Coordinate update error: No cluster leader
    2019/03/27 15:35:25 [ERR] agent: failed to sync remote state: No cluster leader

Alex Siegmanabout 7 years ago

but when i restart the first instance that launched, it started working right away

Alex Siegmanabout 7 years ago

docker run -d --net=host --name=consul -v /consul:/consul consul:1.4.4 consul agent -server -ui -bind=172.20.36.141 -client=0.0.0.0 -retry-join 'provider=aws tag_key=aws:cloudformation:stack-name tag_value=dev-consul' -bootstrap-expect=3 -data-dir=/consul

Nikola Velkovskiabout 7 years ago

hmm why do you have bind set to a instance ip ?

Nikola Velkovskiabout 7 years ago

that doesn't seem right

Alex Siegmanabout 7 years ago(edited)

It complains if i take the bind out, I'm pretty sure. Let me double check. Yeah,

==> Multiple private IPv4 addresses found. Please configure one with 'bind' and/or 'advertise'.

Nikola Velkovskiabout 7 years ago


Environment Variables: Use the CONSUL_CLIENT_INTERFACE and CONSUL_BIND_INTERFACE environment variables. In the following example eth0 is the network interface of the container.

$ docker run \
  -d \
  -e CONSUL_CLIENT_INTERFACE='eth0' \
  -e CONSUL_BIND_INTERFACE='eth0' \
  consul agent -server -bootstrap-expect=3

Nikola Velkovskiabout 7 years ago

taken from the docs

Alex Siegmanabout 7 years ago

Yeah, saw that, but...

docker logs -f consul
==> Found address '172.20.36.141' for interface 'eth0', setting bind option...
==> Found address '172.20.36.141' for interface 'eth0', setting client option...
==> Multiple private IPv4 addresses found. Please configure one with 'bind' and/or 'advertise'.

Nikola Velkovskiabout 7 years ago

then try this

Nikola Velkovskiabout 7 years ago

curl <http://169.254.169.254/latest/meta-data/local-ipv4>

Nikola Velkovskiabout 7 years ago

or something similar to get the current up of the instance

Alex Siegmanabout 7 years ago

Yeah, that's how I'm getting the address to setup the BIND-IP

Nikola Velkovskiabout 7 years ago

argh sorry

Alex Siegmanabout 7 years ago

No worries. If I could avoid having to do that metadata step I wouldn't have been sad

Nikola Velkovskiabout 7 years ago

🙂

Alex Siegmanabout 7 years ago

But, I'm not sure that's my problem anyways 😃

Nikola Velkovskiabout 7 years ago

yeah doesnt seem like it

Nikola Velkovskiabout 7 years ago

what about the node-ids of the consul servers ?
I just found an issue that it might be a problem

Nikola Velkovskiabout 7 years ago

-disable-host-node-id

Nikola Velkovskiabout 7 years ago(edited)

and also I assume that the /consul dir on the host OS is empty right?

Alex Siegmanabout 7 years ago(edited)

Yeah, I guess my question is... does -retry-join periodically re-check for new instances with the provided tags

Nikola Velkovskiabout 7 years ago(edited)


-retry-interval - Time to wait between join attempts. Defaults to 30s.

-retry-max - The maximum number of -join attempts to be made before exiting with return code 1. By default, this is set to 0 which is interpreted as infinite retries.

Nikola Velkovskiabout 7 years ago

so it's infinite

Nikola Velkovskiabout 7 years ago

I was just checking my old working docker command for consul and everything seems to be the same

Nikola Velkovskiabout 7 years ago

you just don't have the -datacenter argument

Nikola Velkovskiabout 7 years ago(edited)

but it defaults to dc1

Alex Siegmanabout 7 years ago

Yeah, I'm okay with dc1 for now

Alex Siegmanabout 7 years ago

/consul/ on the host only contains an empty /consul/config file because it complained otherwise

Alex Siegmanabout 7 years ago

Curious why that retry didn't find new instances

Alex Siegmanabout 7 years ago(edited)

Good to know it should work that way. Downside, testing cycle for a "new" cluster is like... as long as it takes autoscaling to spin up 3 new instances after I can the existing ones. I didn't see that it was working that way, but, I'll poke around a bit more and find out.

Nikola Velkovskiabout 7 years ago

hmmm I don't think consul needs to persist it's data

Nikola Velkovskiabout 7 years ago

you should definitelly try running it without that

Alex Siegmanabout 7 years ago(edited)

without -data-dir? It was giving me grief, let me try though. Yeah.

$ docker run -d --net=host --name=consul -v /consul:/consul consul:1.4.4 consul agent -server -ui -bind=$(curl -s <http://169.254.169.254/latest/meta-data/local-ipv4>) -client=0.0.0.0 -retry-join 'provider=aws tag_key=aws:cloudformation:stack-name tag_value=dev-consul' -bootstrap-expect=3
86ba1b7d7a420374d971969daade4835fa5f554b3f0ec2ad4819f6cec39dde6a
[ec2-user@ip-172-20-36-141 ~]$ docker logs -f consul
==> data_dir cannot be empty

Nikola Velkovskiabout 7 years ago

argh yeah

Alex Siegmanabout 7 years ago

It's fine, this is some fine tuning for me. Really, I'd love to see a working production-ready cluster built with autoscale groups in cloudformation, but all the stuff I find is really dated or incomplete

Alex Siegmanabout 7 years ago

I feel like this should be a solved problem

Nikola Velkovskiabout 7 years ago

well I had the smae but with terraform

Nikola Velkovskiabout 7 years ago

and on a different os

Alex Siegmanabout 7 years ago

What I have now was basically converted from various terraform modules, even hashicorps

Nikola Velkovskiabout 7 years ago

but you are sure that -v /consul:/consul the dir on the host is empty ?

Alex Siegmanabout 7 years ago

when the host first comes up, yes

Nikola Velkovskiabout 7 years ago

ok so that's how you test, terminate all and wait

Nikola Velkovskiabout 7 years ago

good

Alex Siegmanabout 7 years ago

It will complain that /consul/config doesnt exist, so in my userdata I have

              # Consul data directory
              mkdir -p /consul
              chmod 777 /consul
              touch /consul/config

Nikola Velkovskiabout 7 years ago

and I assume the ports are open between the instances ?

Nikola Velkovskiabout 7 years ago

so I just tried the command locally

Nikola Velkovskiabout 7 years ago

and I get the same error but because I don't have other consuls to connect to

Nikola Velkovskiabout 7 years ago


docker run --net=host --name=consul4 consul:1.4.4 consul agent -server -ui -bind=192.168.10.181 -client=0.0.0.0 -retry-join 'provider=aws tag_key=aws:cloudformation:stack-name tag_value=dev-consul' -bootstrap-expect=3 --data-dir=/consul
bootstrap_expect > 0: expecting 3 servers
==> Starting Consul agent...
==> Consul agent running!
           Version: 'v1.4.4'
           Node ID: 'ba7904d7-c5ef-2547-01d6-15988833964c'
         Node name: 'awesome-pc'
        Datacenter: 'dc1' (Segment: '<all>')
            Server: true (Bootstrap: false)
       Client Addr: [0.0.0.0] (HTTP: 8500, HTTPS: -1, gRPC: -1, DNS: 8600)
      Cluster Addr: 192.168.10.181 (LAN: 8301, WAN: 8302)
           Encrypt: Gossip: false, TLS-Outgoing: false, TLS-Incoming: false

==> Log data will now stream in as it occurs:

    2019/03/27 19:42:09 [INFO] raft: Initial configuration (index=0): []
    2019/03/27 19:42:09 [INFO] raft: Node at 192.168.10.181:8300 [Follower] entering Follower state (Leader: "")
    2019/03/27 19:42:09 [INFO] serf: EventMemberJoin: awesome-pc.dc1 192.168.10.181
    2019/03/27 19:42:09 [INFO] serf: EventMemberJoin: awesome-pc 192.168.10.181
    2019/03/27 19:42:09 [INFO] consul: Handled member-join event for server "awesome-pc.dc1" in area "wan"
    2019/03/27 19:42:09 [INFO] discover-aws: Address type  is not supported. Valid values are {private_v4,public_v4,public_v6}. Falling back to 'private_v4'
    2019/03/27 19:42:09 [INFO] discover-aws: Region not provided. Looking up region in metadata...
    2019/03/27 19:42:09 [INFO] consul: Adding LAN server awesome-pc (Addr: tcp/192.168.10.181:8300) (DC: dc1)
    2019/03/27 19:42:09 [INFO] agent: Started DNS server 0.0.0.0:8600 (udp)
    2019/03/27 19:42:09 [INFO] agent: Started DNS server 0.0.0.0:8600 (tcp)
    2019/03/27 19:42:09 [INFO] agent: Started HTTP server on [::]:8500 (tcp)
    2019/03/27 19:42:09 [INFO] agent: started state syncer
    2019/03/27 19:42:09 [INFO] agent: Retry join LAN is supported for: aliyun aws azure digitalocean gce k8s os packet scaleway softlayer triton vsphere
    2019/03/27 19:42:09 [INFO] agent: Joining LAN cluster...
    2019/03/27 19:42:16 [ERR] agent: failed to sync remote state: No cluster leader
    2019/03/27 19:42:19 [WARN] raft: no known peers, aborting election
    2019/03/27 19:42:21 [ERR] agent: Join LAN: discover-aws: GetInstanceIdentityDocument failed: EC2MetadataRequestError: failed to get EC2 instance identity document
caused by: RequestError: send request failed
caused by: Get <http://169.254.169.254/latest/dynamic/instance-identity/document>: dial tcp 169.254.169.254:80: connect: no route to host
    2019/03/27 19:42:21 [WARN] agent: Join LAN failed: No servers to join, retrying in 30s

Alex Siegmanabout 7 years ago

Yeah, exactly. When the first instance is launched by the ASG, it only sees one instance (itself) from the -retry-join option I have

Nikola Velkovskiabout 7 years ago

but check the last message

Alex Siegmanabout 7 years ago

The second one sees two, the third one then sees all three. I restart the first one, it sees all three, a leader is elected

Alex Siegmanabout 7 years ago

Oh yeah, I don't remember seeing that message. Let me can my instances and see what happens, only takes like 5 minutes

Nikola Velkovskiabout 7 years ago

or just

Nikola Velkovskiabout 7 years ago

use docker-compose and try to cluster 3 dockers with the same command

ldleworkabout 7 years ago(edited)

@Erik Osterman (Cloud Posse) @loren @keen I might be getting carried away myself: https://gist.github.com/dustinlacewell/59dc2319812c3b6f3083b71aed046d05

ldleworkabout 7 years ago

That last one is pretty dope though. It opens an SSH tunnel through an EC2 instance to RDS, then starts a Docker container of the service that uses the DB to run migrations, while pointing the Docker container at localhost (because there is a tunnel) and then it kills the SSH tunnel.

ldleworkabout 7 years ago

Pretty handy 😂

ldleworkabout 7 years ago

Overall, getting pretty DRY

lorenabout 7 years ago

it's clear enough to me 😉

Erik Osterman (Cloud Posse)about 7 years ago

LGTM too

erikabout 7 years ago

Erik Osterman (Cloud Posse)about 7 years ago

I didn't know you could do something like that

ldleworkabout 7 years ago

Me either until a couple hours ago

ldleworkabout 7 years ago

Functions too!

ldleworkabout 7 years ago

Pretty dope I can now do make secret SECRET=db_password or make output MODULE=aurora RESOURCE=endpoint to get secrets or Terraform outputs respectively

Erik Osterman (Cloud Posse)about 7 years ago

have you checked out #variant?

Erik Osterman (Cloud Posse)about 7 years ago

it's make on steroids

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

it allows for the definition of more user-friendly cli tools the way we use make (or even call make from variant)

ldleworkabout 7 years ago

I'll definitely look into it

Nikola Velkovskiabout 7 years ago

https://aws.amazon.com/blogs/compute/a-guide-to-locally-testing-containers-with-amazon-ecs-local-endpoints-and-docker-compose/

Nikola Velkovskiabout 7 years ago

Travis is really having a bad week so far.

Igorabout 7 years ago

CircleCi is as well

ldleworkabout 7 years ago

I checked out Variant but it seems quite limited compared to make, even in the pretty basic ways I use make. I guess if you don't care about DRYness at all Variant is fine. It does produce a helpful usage string. @Erik Osterman (Cloud Posse) were you saying that you use Variant as a frontend to make?

Erik Osterman (Cloud Posse)about 7 years ago

variant is truly make on steroids

Erik Osterman (Cloud Posse)about 7 years ago

it's not as well documented b/c that's a lot of work 😃

Erik Osterman (Cloud Posse)about 7 years ago

also, keep in mind you can use YAML anchors to keep things DRY

Erik Osterman (Cloud Posse)about 7 years ago

and yes, you can call out to make from variant

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

you can call out to anything from variant. the key is variant gives you a modern cli interface so that you can combine a mishmash of tools and present a common interface for all of them

Erik Osterman (Cloud Posse)about 7 years ago

https://github.com/mumoshu/variant/tree/master/test/integration

Erik Osterman (Cloud Posse)about 7 years ago

looking at all of his integration tests, you can see how to use it

Erik Osterman (Cloud Posse)about 7 years ago

(@mumoshu is in #variant as well)

Erik Osterman (Cloud Posse)about 7 years ago

https://confluence.atlassian.com/bitbucket/yaml-anchors-960154027.html

Erik Osterman (Cloud Posse)about 7 years ago

explanation of YAML anchors ☝️

Erik Osterman (Cloud Posse)about 7 years ago

also keep in mind that that variant bakes in documentation to each command, while in make there's none of that

erikabout 7 years ago

Erik Osterman (Cloud Posse)about 7 years ago

the *exit_on_errors is an example of a YAML anchor

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

that's very DRY

Erik Osterman (Cloud Posse)about 7 years ago

you can take the output from one task and use it as input to another task

Erik Osterman (Cloud Posse)about 7 years ago

you can do conditionals:

erikabout 7 years ago

Erik Osterman (Cloud Posse)about 7 years ago

you can test your tasks, so it's clear how they logically relate to each other

Erik Osterman (Cloud Posse)about 7 years ago

You can get parameter validation

erikabout 7 years ago

Erik Osterman (Cloud Posse)about 7 years ago

no way native way to do that in make

Erik Osterman (Cloud Posse)about 7 years ago

Here's our example: https://github.com/cloudposse/geodesic/blob/master/rootfs/usr/local/bin/kopsctl

ldleworkabout 7 years ago

Yeah if I try to introduce this people will throw a fit about the lack of documentation but thank you for pointing out that it does have some refactorability.

ldleworkabout 7 years ago

Maybe I'll just throw it ontop just to call make at first and get people hooked on the self-documenting nature 🙂

Janabout 7 years ago

A great laugh for yall 🙂

ldleworkabout 7 years ago

i love this meme

Erik Osterman (Cloud Posse)about 7 years ago

Some interesting projects by Samsung: https://github.com/samsung-cnct

ldleworkabout 7 years ago

Anyone play Go?

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