Linux
Linux (Ubuntu) commands to memorize
This is just a personal reminder of commands that I use a lot that I should really memorize but haven’t gotten around to. How to check what is running on a particular port lsof -i :8000
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How to fix Rancher 2.0 “503 Service Temporarily Unavailable”
Scenario So you have your Rancher 2.0 Kubernetes cluster up, and you update one of your apps.. Suddenly your site is down and you see the error 503 Service Temporarily Unavailable Don’t freak out, theres a simple solution here. More likely than not, you setup your ingress to target a Read more…
DevOps
Rancher 2.0 etcd disaster recovery
This doc shows how to restore to a single node etcd cluster after a 3, 5 or 7 node cluster has lost quorum. Ideally with these sorts of failures you want to try your best to get the original etcd hosts back up. This is also done at your own Read more…
Linux
Fix: Ubuntu touchpad stops working on wakeup
Create a file in /lib/systemd/system-sleep sudo vim /lib/systemd/system-sleep/fixmouse.sh Create a script which will reinstall the psmouse kernel module on wake #!/bin/sh case $1/$2 in pre/*) echo “Going to $2…” # Place your pre suspend commands here, or `exit 0` if no pre suspend action required exit 0 ;; post/*) echo Read more…
DevOps
How to manually generate SSL certificates for Flynn applications
For the last few years the flynn team has been working on getting us letsencrypt integration. While I feel the functionally should be here soon, in the meantime we just have to make the requests ourselves Step 1. Using letsencrypt, perform a manual request I’m currently using Ubuntu 18.04 so Read more…
DevOps
How to add Flynn to your GitLab CI/CD workflow
Goal: Make GitLab deploy to Flynn I will assume you already have your .yml setup to build your project. As I will only cover the deploy section. You also need to have an app created on your Flynn server and any resources already created. If you need help doing this Read more…
Development
How to deploy an Angular 6 project to Heroku
As I had difficulty finding a reliable source online, I decided to create my own. Here is how you deploy an Angular 6 app to Heroku Step 1 You are going to need something to serve your files. Let’s go with express. We will also need ‘path’ to setup our Read more…
Linux
Ubuntu 18.04 Tools and Apps
This serves to be an ever-changing personal list of what to install if I ever redo my Ubuntu machine. Currently I am running Ubuntu 18.04 so can only guarantee compatibility with that version. Uncommon Comfortable Swipe – https://github.com/Hikari9/comfortable-swipe-ubuntu Lets you map trackpad gestures to just about anything. Also comes with sensible Read more…
Development
How to create an observable in Ionic v2
Observable.create(observer => { this.http.get(url, {headers}).subscribe(res => { this.response = res; observer.next(this.response); observer.complete(); }, err => { console.log(err); observer.error(err); observer.complete(); }); });
Uncategorized
How to fix django cors issue
create a file middleware.py and type class CORSMiddleware: def __init__(self, get_response): self.get_response = get_response def __call__(self, request): response = self.get_response(request) response[‘Access-Control-Allow-Origin’] = “*” return response In settings.py add MIDDLEWARE = [ … ‘product.middleware.CORSMiddleware’, ]