ScalaWilliam

```
[03:18] <ScaWilliam> I have a file that contains multiple lines of curl arguments, eg one line -X POST, one line -H 'Content-Type: application/json' one line -d '{"some": "payload"}'  --- I tried doing curl "$(cat file.txt)" http://host/ but it won't work - it doesn't evaluate the arguments properly. How do I do what I want?
[03:20] <greycat> ScaWilliam: mapfile -t curlargs < myfile; curl "${curlargs[@]}" "$url"
[03:30] <ScaWilliam> @greycat your command worked with one line -X, another POST, another -H another Content-Type: ...
[03:31] <greycat> But...?
[03:31] * greycat waits for "I actually have multiple options per line and they're shell-quoted"
[03:31] <ScaWilliam> hah no, figured out that one myself.
[03:31] <ScaWilliam> thanks, I'll share your website on twitter, this was very helpful :-)

ScalaWilliam

• https://sloppy.io/ commercial, docker, mesos

• https://arukas.io/ docker hosting, currently free

• https://github.com/veggiemonk/awesome-docker#paas

• https://deis.com/workflow/ kubernetes, multi target, supports Heroku buildpack Looks like many commands, so far it is quite unclear to me. Comes with monitoring, influxdb, grafana, telegraf! Lots of stuff, looks nice but it's a proper prebuilt solution so could be a steep learning curve Has an nginx reverse router

ScalaWilliam

Documentation-Driven Development

The philosophy behind Documentation-Driven Development is a simple: from the perspective of a user, if a feature is not documented, then it doesn't exist, and if a feature is documented incorrectly, then it's broken.

• Document the feature first. Figure out how you're going to describe the feature to users; if it's not documented, it doesn't exist. Documentation is the best way to define a feature in a user's eyes.
• Whenever possible, documentation should be reviewed by users (community or Spark Elite) before any development begins.
• Once documentation has been written, development should commence, and test-driven development is preferred.
• Unit tests should be written that test the features as described by the documentation. If the functionality ever comes out of alignment with the documentation, tests should fail.
• When a feature is being modified, it should be modified documentation-first.
• When documentation is modified, so should be the tests.

ScalaWilliam

• http://www.conviva.com/canary-deployment-with-nginx/
• http://docs.ansible.com/ansible/guide_rolling_upgrade.html
• https://github.com/leucos/ansible-blue-green/blob/master/tasks/blue-green.yml
• https://tenzer.dk/nginx-with-dynamic-upstreams/
• http://nginx.org/en/docs/http/ngx_http_upstream_module.html
• http://docs.ansible.com/ansible/lineinfile_module.html
• http://nginx.org/en/linux_packages.html
• https://github.com/jdauphant/ansible-role-nginx
• https://github.com/debops/ansible-nginx
• https://www.nginx.com/blog/installing-nginx-nginx-plus-ansible/

ScalaWilliam

- name: zulu apt key
  apt_key: keyserver='hkp://keyserver.ubuntu.com:80' id=0x219BD9C9

- name: Add Zulu repository
  apt_repository:
    repo: deb http://repos.azulsystems.com/debian stable main
    state: present

- name: ensure zulu jdk installed
  apt:

ScalaWilliam

java.nio.file.Files.lines(
  java.nio.file.Paths.get("/dev/stdin")
).map(function (line) {
    var time = line.substring(0, line.indexOf(" "))
    var payload = line.substring(line.indexOf(" ") + 1);
    var instant = java.time.LocalDateTime.parse(time).atZone(java.time.ZoneId.of("Europe/Paris")).toInstant()
    var newTimeStr = java.time.format.DateTimeFormatter.ISO_INSTANT.format(instant);
    return [newTimeStr, "aura.woop.ac:10000", payload].join("\t");
})
.forEach(print);

ScalaWilliam

cut -c 1-10,20- | \
  cut -f 1,2 -d $'\t' | \
  mawk -F $'\t' -v OFS=$'\t' '$1 == last_date { counts[$2]++; } $1 != last_date { for ( i in counts ) print last_date, counts[i], i; last_date = $1;  delete counts; }; END {for ( i in counts ) print last_date, counts[i], i;}'

ScalaWilliam

#curl -s 'https://actionfps.com/logs.tsv?from=2017-01-01T00:00:00Z&to=2099-04-10T11:02:03Z' > AFPS2017.txt
#python fraudeur.py < AFPS2017.txt > fraudeur.csv

import sys

fragCLA={"AssaultCube[local#1999]": 0, "AssaultCube[local#2999]": 0, "AssaultCube[local#3999]":0, "AssaultCube[local#4999]":0, "AssaultCube[califapublic]": 0, "ActionFPS[local#7654]": 0, "ac_server[32337]": 0}
flagCLA={"AssaultCube[local#1999]": 0, "AssaultCube[local#2999]": 0, "AssaultCube[local#3999]":0, "AssaultCube[local#4999]":0, "AssaultCube[califapublic]": 0, "ActionFPS[local#7654]": 0, "ac_server[32337]": 0}
fragRVSF={"AssaultCube[local#1999]": 0, "AssaultCube[local#2999]": 0, "AssaultCube[local#3999]":0, "AssaultCube[local#4999]":0, "AssaultCube[califapublic]": 0, "ActionFPS[local#7654]": 0, "ac_server[32337]": 0}
flagRVSF={"AssaultCube[local#1999]": 0, "AssaultCube[local#2999]": 0, "AssaultCube[local#3999]":0, "AssaultCube[local#4999]":0, "AssaultCube[califapublic]": 0, "ActionFPS[local#7654]": 0, "ac_server[32337]": 0}
time={"Assau

ScalaWilliam

$ brew install kubectl
$ minikube start
$ minikube dashboard
Set up a service (e.g. scalawilliam/eventsource-hub)
$ kubectl cluster-info
Get an IP
$ kubectl describe service
Get NodePort
$ curl http://<NodePort>:<IP>

ScalaWilliam

$ jjs -cp $(coursier fetch org.jsoup:jsoup:1.10.1)
var document = org.jsoup.Jsoup.connect("http://www.bbc.com/news").get()
document.select(".title-link__title-text").stream().map(function(item) { return item.text(); }).forEach(print);

document = org.jsoup.Jsoup.connect("http://www.bbc.com/news").get()
document.select(".title-link__title-text").forEach(function(item) { print(item.text()); })
document.select(".title-link__title-text").stream().map(function(item) { return item.text(); }).forEach(print);
document.select(".title-link__title-text").stream().map(lambda x: x.text()).forEach(lambda x: print(x))