DEV Community: Saviour Gidi

Automating the Date On Your Footer.

Saviour Gidi — Tue, 31 Dec 2019 13:52:23 +0000

In software engineering, it often said that, once the task is repetitive🙄, automate it! So must the © Copyright Date on the footer be automated.

Footer holds details such as Sitemap, Social Links and Copyright Notice of a site.
Eg.
src: https://www.godlife.com/en

Approach 1

Introduce a JavaScript tag with internal Date API. You can get the current year from the browser JS API, which means you don't have to change every other year.

Add the JS script to your HTML


 Date().getFullYear());

Introduce a script tag in your Footer Section.



<p>
   &copy
   <script>
      document.write(new Date().getFullYear());
   </script> 
   <a href='https://twiter.com/saviour123>Saviour Gidi<a/>
 </p>

Output

Approach Two

Introduce a script tag with AJAX and get the current Date from World Clock.



<p>
  &copy
  <p id='copyright'></p>
  Saviour Gidi
</p>

<script>
    fetch('http://worldclockapi.com/api/json/utc/now')
      .then(data => data.json())
      .then(d => 
      document.getElementById('copyright').innerHTML = (new Date(d.currentDateTime).getFullYear())
)
</script>

NB: This second approach is to a response in the comments.

Imagine every year you have to manually change the date on the website. It's not safe for your health and your company's and I pity you🤣. To cut long story short, update your code to include the JS tag!

Troubleshooting Datadog Log Setup

Saviour Gidi — Sat, 27 Jul 2019 17:45:08 +0000

Description

The setup of datadog is so simple for anybody to do. But to get it to ship logs can be messy. This guide would help you in troubleshooting.

Known Issues

After installation and having all configurations right, this include logs_enabled: true set in your datadog.yaml, your datadog log setup may still not work.
These lessons are from experience and you can refer to this in times of need.

Datadog Log

The first point of call is datadog logs. note: These logs are not managed by Logrotate so it can get very huge. I advise you tail -n 500 /var/log/datadog/agent.log.

Check this log for TCP(Port) and Permission issues.

sudo cat /var/log/datadog/agent.log
# or
sudo cat /var/log/datadog/agent.log | grep permission

Users and Usergroup

From experience datadog works well if the /etc/datadog/conf.d/awesome-app.d/conf.yaml is owned by
dd-agent user and group you created during installation.
If you are not sure, run cd /etc/datadog/conf.d/awesome-app && ll and view the usergrp and user. If the directory is owned by root or any other user, you can fix it with the following.

sudo chown dd-agent awesome-app.d/conf.yaml
sudo chgrp dd-agent awesome-app.d/conf.yaml

# and restart datadog

sudo service datadog-agent restart

Verify if you are still unable to ship logs.

Grant Permission to Datadog

Most of the time, we can get lucky by running some chmod on the log file we are shipping to datadog. This is not so good since the directory and log is generated by an application with a different user and group.

So the best approach here is setfacl. It grants permission on a file without the need to compromise its previous users or permission.

Execute it as below per your path

setfacl -m u:dd-agent:rwx /var/log/awesome-app/file.log

or grant it on a directory

setfacl -m u:dd-agent:rwx /var/log/awesome-app

Restart and you would be fine.

Visit https://docs.datadoghq.com/ for more!

Kong Part 1: Installation and First Setup on Ubuntu 18.04

Saviour Gidi — Mon, 15 Oct 2018 17:14:14 +0000

Kong is one of the open source API gateway managers around. A typical use case is when you want to manage(eg. Secure) your API and but you don't have the time to write all those logic inside your API. API Gateway is probably what you need.

API Gateways can do- Rate limiting, securing Your API with Key and tokens, logging and many more.

We would use kong to protect Simple API I wrote with Flask. Watch out for Part 2.

Download and Install

There are several options for installing kong, they include Debian, docker which is very prevalent, kubernates, redhat and even vagrant.

Head over to Kong homepage download kong Debian image from kong website.

Select the one applicable and download.

Install Kong

$ sudo apt-get install openssl libpcre3 procps perl #some dependencies

$ sudo dpkg -i kongdeb.deb

Not yet, Kong is only installed. Lets provision persistent database for it.

Provision a database

On your appliance assuming you installed kong on Ubuntu as I did, the default configuration would be available at /etc/kong/kong.cong.default.

Make a copy

cp /etc/kong/kong.conf.default /etc/kong/kong.conf

Configure the Datastore

Kong support Cassandra and PostgreSQL Database. I am using PostgreSQL over here.

Provision the database

CREATE USER kong; CREATE DATABASE kong OWNER kong

Update the kong.conf

Scroll to the database section and add the Postgres details.
$ vim /etc/kong/kong.conf and change this section dbname: kong, user=kong, pass=kong2018

Start kong

kong has some commands

$ kong migrations up #runs the database migrations
$ sudo kong start

$ curl -i http://localhost:8001

Bonus

$ sudo kong stop #stop kong
$ sudo kong health #kong status

--Happy Hacking--

NB. Watch out for Part 2, where I add the Flask API.